| File: | d/tclhttp.c |
| Warning: | line 2922, column 13 Duplicate code detected |
| Note: | line 4571, column 9 Similar code here |
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| 1 | /* |
| 2 | * The contents of this file are subject to the AOLserver Public License |
| 3 | * Version 1.1 (the "License"); you may not use this file except in |
| 4 | * compliance with the License. You may obtain a copy of the License at |
| 5 | * http://aolserver.com/. |
| 6 | * |
| 7 | * Software distributed under the License is distributed on an "AS IS" |
| 8 | * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See |
| 9 | * the License for the specific language governing rights and limitations |
| 10 | * under the License. |
| 11 | * |
| 12 | * The Original Code is AOLserver Code and related documentation |
| 13 | * distributed by AOL. |
| 14 | * |
| 15 | * The Initial Developer of the Original Code is America Online, |
| 16 | * Inc. Portions created by AOL are Copyright (C) 1999 America Online, |
| 17 | * Inc. All Rights Reserved. |
| 18 | * |
| 19 | * Alternatively, the contents of this file may be used under the terms |
| 20 | * of the GNU General Public License (the "GPL"), in which case the |
| 21 | * provisions of GPL are applicable instead of those above. If you wish |
| 22 | * to allow use of your version of this file only under the terms of the |
| 23 | * GPL and not to allow others to use your version of this file under the |
| 24 | * License, indicate your decision by deleting the provisions above and |
| 25 | * replace them with the notice and other provisions required by the GPL. |
| 26 | * If you do not delete the provisions above, a recipient may use your |
| 27 | * version of this file under either the License or the GPL. |
| 28 | */ |
| 29 | |
| 30 | /* |
| 31 | * tclhttp.c -- |
| 32 | * |
| 33 | * Support for the ns_http command. |
| 34 | * Uses the Ns_Task interface to run/queue HTTP tasks. |
| 35 | */ |
| 36 | |
| 37 | #include "nsd.h" |
| 38 | |
| 39 | #ifdef HAVE_OPENSSL_EVP_H1 |
| 40 | #include <openssl/err.h> |
| 41 | #endif |
| 42 | |
| 43 | #define TCLHTTP_USE_EXTERNALTOUTF1 1 |
| 44 | |
| 45 | /* |
| 46 | * The maximum number of bytes we can send to TLS |
| 47 | * in one operation is 2^14 => 16384 (see RFC 5246). |
| 48 | * This is used when reading data from file/channel |
| 49 | * and writing data to the connected socket. |
| 50 | * |
| 51 | * At some point, this should be abstracted by the |
| 52 | * future socket communication module. |
| 53 | */ |
| 54 | #define CHUNK_SIZE16384 16384 |
| 55 | |
| 56 | /* |
| 57 | * String equivalents of some methods, header keys |
| 58 | */ |
| 59 | static const char *transferEncodingHeader = "Transfer-Encoding"; |
| 60 | static const char *acceptEncodingHeader = "Accept-Encoding"; |
| 61 | static const char *contentEncodingHeader = "Content-Encoding"; |
| 62 | static const char *contentTypeHeader = "Content-Type"; |
| 63 | static const char *contentLengthHeader = "Content-Length"; |
| 64 | static const char *connectionHeader = "Connection"; |
| 65 | static const char *trailersHeader = "Trailers"; |
| 66 | static const char *hostHeader = "Host"; |
| 67 | static const char *userAgentHeader = "User-Agent"; |
| 68 | static const char *connectMethod = "CONNECT"; |
| 69 | |
| 70 | static const int acceptEncodingHeaderLength = 15; |
| 71 | |
| 72 | /* |
| 73 | * Attempt to maintain Tcl errorCode variable. |
| 74 | * This is still not done thoroughly through the code. |
| 75 | */ |
| 76 | static const char *errorCodeTimeoutString = "NS_TIMEOUT"; |
| 77 | |
| 78 | /* |
| 79 | * For http task mutex naming |
| 80 | */ |
| 81 | static uint64_t httpClientRequestCount = 0u; /* MT: static variable! */ |
| 82 | |
| 83 | /* |
| 84 | * Local functions defined in this file |
| 85 | */ |
| 86 | |
| 87 | static int HttpQueue( |
| 88 | NsInterp *itPtr, |
| 89 | int objc, |
| 90 | Tcl_Obj *const* |
| 91 | objv, |
| 92 | bool_Bool run |
| 93 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 94 | |
| 95 | static int HttpConnect( |
| 96 | NsInterp *itPtr, |
| 97 | const char *method, |
| 98 | const char *url, |
| 99 | Tcl_Obj *proxyObj, |
| 100 | Ns_Set *hdrPtr, |
| 101 | ssize_t bodySize, |
| 102 | Tcl_Obj *bodyObj, |
| 103 | const char *bodyFileName, |
| 104 | const char *cert, |
| 105 | const char *caFile, |
| 106 | const char *caPath, |
| 107 | const char *sniHostname, |
| 108 | bool_Bool verifyCert, |
| 109 | bool_Bool keepHostHdr, |
| 110 | Ns_Time *timeoutPtr, |
| 111 | Ns_Time *expirePtr, |
| 112 | NsHttpTask **httpPtrPtr |
| 113 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))) NS_GNUC_NONNULL(3)__attribute__((__nonnull__(3))) NS_GNUC_NONNULL(17)__attribute__((__nonnull__(17))); |
| 114 | |
| 115 | static bool_Bool HttpGet( |
| 116 | NsInterp *itPtr, |
| 117 | const char *taskID, |
| 118 | NsHttpTask **httpPtrPtr, |
| 119 | bool_Bool remove |
| 120 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))) NS_GNUC_NONNULL(3)__attribute__((__nonnull__(3))); |
| 121 | |
| 122 | static void HttpClose( |
| 123 | NsHttpTask *httpPtr |
| 124 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 125 | |
| 126 | static void HttpCancel( |
| 127 | NsHttpTask *httpPtr |
| 128 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 129 | |
| 130 | static int HttpAppendContent( |
| 131 | NsHttpTask *httpPtr, |
| 132 | const char *buffer, |
| 133 | size_t size |
| 134 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 135 | |
| 136 | static int HttpAppendChunked( |
| 137 | NsHttpTask *httpPtr, |
| 138 | const char *buffer, |
| 139 | size_t size |
| 140 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 141 | |
| 142 | static int HttpAppendBuffer( |
| 143 | NsHttpTask *httpPtr, |
| 144 | const char *buffer, |
| 145 | size_t size |
| 146 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 147 | |
| 148 | static int HttpAppendRawBuffer( |
| 149 | NsHttpTask *httpPtr, |
| 150 | const char *buffer, |
| 151 | size_t size |
| 152 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 153 | |
| 154 | static Ns_ReturnCode HttpWaitForSocketEvent( |
| 155 | NS_SOCKETint sock, |
| 156 | short events, |
| 157 | Ns_Time *timeoutPtr |
| 158 | ); |
| 159 | |
| 160 | static void HttpAddInfo( |
| 161 | NsHttpTask *httpPtr, |
| 162 | const char *key, |
| 163 | const char *value |
| 164 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 165 | |
| 166 | static void HttpCheckHeader( |
| 167 | NsHttpTask *httpPtr |
| 168 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 169 | |
| 170 | static Ns_ReturnCode HttpCheckSpool( |
| 171 | NsHttpTask *httpPtr |
| 172 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 173 | |
| 174 | static ssize_t HttpTaskSend( |
| 175 | const NsHttpTask *httpPtr, |
| 176 | const void *buffer, |
| 177 | size_t length |
| 178 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 179 | |
| 180 | static ssize_t HttpTaskRecv( |
| 181 | const NsHttpTask *httpPtr, |
| 182 | char *buffer, |
| 183 | size_t length, |
| 184 | Ns_SockState *statePtr |
| 185 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 186 | |
| 187 | static int HttpCutChannel( |
| 188 | Tcl_Interp *interp, |
| 189 | Tcl_Channel chan |
| 190 | ) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 191 | |
| 192 | static void HttpSpliceChannel( |
| 193 | Tcl_Interp *interp, |
| 194 | Tcl_Channel chan |
| 195 | ) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 196 | |
| 197 | static void HttpSpliceChannels( |
| 198 | Tcl_Interp *interp, |
| 199 | NsHttpTask *httpPtr |
| 200 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 201 | |
| 202 | static int HttpGetResult( |
| 203 | Tcl_Interp *interp, |
| 204 | NsHttpTask *httpPtr |
| 205 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 206 | |
| 207 | static void HttpDoneCallback( |
| 208 | NsHttpTask *httpPtr |
| 209 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 210 | |
| 211 | static void HttpClientLogWrite( |
| 212 | const NsHttpTask *httpPtr, |
| 213 | const char *causeString |
| 214 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 215 | |
| 216 | static NS_SOCKETint HttpTunnel( |
| 217 | NsInterp *itPtr, |
| 218 | const char *proxyhost, |
| 219 | unsigned short proxyport, |
| 220 | const char *host, |
| 221 | unsigned short port, |
| 222 | const Ns_Time *timeout |
| 223 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))) NS_GNUC_NONNULL(4)__attribute__((__nonnull__(4))); |
| 224 | |
| 225 | static Ns_LogCallbackProc HttpClientLogOpen; |
| 226 | static Ns_LogCallbackProc HttpClientLogClose; |
| 227 | static Ns_LogCallbackProc HttpClientLogRoll; |
| 228 | static Ns_SchedProc SchedLogRollCallback; |
| 229 | static Ns_ArgProc SchedLogArg; |
| 230 | |
| 231 | static Ns_TaskProc HttpProc; |
| 232 | |
| 233 | /* |
| 234 | * Function implementing the Tcl interface. |
| 235 | */ |
| 236 | static Tcl_ObjCmdProc HttpCancelObjCmd; |
| 237 | static Tcl_ObjCmdProc HttpCleanupObjCmd; |
| 238 | static Tcl_ObjCmdProc HttpListObjCmd; |
| 239 | static Tcl_ObjCmdProc HttpStatsObjCmd; |
| 240 | static Tcl_ObjCmdProc HttpQueueObjCmd; |
| 241 | static Tcl_ObjCmdProc HttpRunObjCmd; |
| 242 | static Tcl_ObjCmdProc HttpWaitObjCmd; |
| 243 | |
| 244 | static NsHttpParseProc ParseCRProc; |
| 245 | static NsHttpParseProc ParseLFProc; |
| 246 | static NsHttpParseProc ParseLengthProc; |
| 247 | static NsHttpParseProc ChunkInitProc; |
| 248 | static NsHttpParseProc ParseBodyProc; |
| 249 | static NsHttpParseProc TrailerInitProc; |
| 250 | static NsHttpParseProc ParseTrailerProc; |
| 251 | static NsHttpParseProc ParseEndProc; |
| 252 | |
| 253 | static char* SkipDigits(char *chars) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 254 | |
| 255 | /* |
| 256 | * Callbacks for the chunked-encoding state machine |
| 257 | * to parse variable number of chunks. |
| 258 | */ |
| 259 | static NsHttpParseProc* ChunkParsers[] = { |
| 260 | &ChunkInitProc, |
| 261 | &ParseLengthProc, |
| 262 | &ParseCRProc, |
| 263 | &ParseLFProc, |
| 264 | &ParseBodyProc, |
| 265 | &ParseCRProc, |
| 266 | &ParseLFProc, |
| 267 | NULL((void*)0) |
| 268 | }; |
| 269 | |
| 270 | /* |
| 271 | * Callbacks for the chunked-encoding parse machine |
| 272 | * to parse variable number of optional trailers. |
| 273 | */ |
| 274 | static NsHttpParseProc* TrailerParsers[] = { |
| 275 | &TrailerInitProc, |
| 276 | &ParseTrailerProc, |
| 277 | &ParseCRProc, |
| 278 | &ParseLFProc, |
| 279 | NULL((void*)0) |
| 280 | }; |
| 281 | |
| 282 | /* |
| 283 | * Callbacks for the chunked-encoding parse machine |
| 284 | * to parse terminating frame (CRLF sequence). |
| 285 | */ |
| 286 | static NsHttpParseProc* EndParsers[] = { |
| 287 | &ParseCRProc, |
| 288 | &ParseLFProc, |
| 289 | &ParseEndProc, |
| 290 | NULL((void*)0) |
| 291 | }; |
| 292 | |
| 293 | |
| 294 | /* |
| 295 | *---------------------------------------------------------------------- |
| 296 | * |
| 297 | * NsInitLog -- |
| 298 | * |
| 299 | * Initialize the log API and TLS slot. |
| 300 | * |
| 301 | * Results: |
| 302 | * None. |
| 303 | * |
| 304 | * Side effects: |
| 305 | * None. |
| 306 | * |
| 307 | *---------------------------------------------------------------------- |
| 308 | */ |
| 309 | |
| 310 | void |
| 311 | NsInitHttp(NsServer *servPtr) |
| 312 | { |
| 313 | const char *path; |
| 314 | |
| 315 | NS_NONNULL_ASSERT(servPtr != NULL)((void) (0)); |
| 316 | |
| 317 | Ns_MutexInit(&servPtr->httpclient.lock); |
| 318 | Ns_MutexSetName2(&servPtr->httpclient.lock, "httpclientlog", servPtr->server); |
| 319 | |
| 320 | path = Ns_ConfigSectionPath(NULL((void*)0), servPtr->server, NULL((void*)0), "httpclient", (char *)0L); |
| 321 | servPtr->httpclient.logging = Ns_ConfigBool(path, "logging", NS_FALSE0); |
| 322 | |
| 323 | if (servPtr->httpclient.logging) { |
| 324 | const char *filename; |
| 325 | Tcl_DString defaultLogFileName; |
| 326 | |
| 327 | Tcl_DStringInit(&defaultLogFileName); |
| 328 | filename = Ns_ConfigString(path, "logfile", NULL((void*)0)); |
| 329 | if (filename == NULL((void*)0)) { |
| 330 | Tcl_DStringAppend(&defaultLogFileName, "httpclient-", 11); |
| 331 | Tcl_DStringAppend(&defaultLogFileName, servPtr->server, -1); |
| 332 | Tcl_DStringAppend(&defaultLogFileName, ".log", 10); |
| 333 | filename = defaultLogFileName.string; |
| 334 | } |
| 335 | |
| 336 | if (Ns_PathIsAbsolute(filename) == NS_TRUE1) { |
| 337 | servPtr->httpclient.logFileName = ns_strdup(filename); |
| 338 | } else { |
| 339 | Tcl_DString ds; |
| 340 | |
| 341 | Tcl_DStringInit(&ds); |
| 342 | (void) Ns_HomePath(&ds, "logs", "/", filename, (char *)0L); |
| 343 | servPtr->httpclient.logFileName = Ns_DStringExport(&ds); |
| 344 | } |
| 345 | Tcl_DStringFree(&defaultLogFileName); |
| 346 | servPtr->httpclient.logRollfmt = ns_strcopy(Ns_ConfigGetValue(path, "logrollfmt")); |
| 347 | servPtr->httpclient.logMaxbackup = Ns_ConfigIntRange(path, "logmaxbackup", |
| 348 | 100, 1, INT_MAX2147483647); |
| 349 | |
| 350 | HttpClientLogOpen(servPtr); |
| 351 | |
| 352 | /* |
| 353 | * Schedule various log roll and shutdown options. |
| 354 | */ |
| 355 | |
| 356 | if (Ns_ConfigBool(path, "logroll", NS_TRUE1)) { |
| 357 | int hour = Ns_ConfigIntRange(path, "logrollhour", 0, 0, 23); |
| 358 | |
| 359 | Ns_ScheduleDaily(SchedLogRollCallback, servPtr, 0u, |
| 360 | hour, 0, NULL((void*)0)); |
| 361 | } |
| 362 | if (Ns_ConfigBool(path, "logrollonsignal", NS_FALSE0)) { |
| 363 | Ns_RegisterAtSignal((Ns_Callback *)(ns_funcptr_t)SchedLogRollCallback, servPtr); |
| 364 | } |
| 365 | |
| 366 | Ns_RegisterProcInfo((ns_funcptr_t)SchedLogRollCallback, "httpclientlog:roll", SchedLogArg); |
| 367 | |
| 368 | } else { |
| 369 | servPtr->httpclient.fd = NS_INVALID_FD(-1); |
| 370 | servPtr->httpclient.logFileName = NULL((void*)0); |
| 371 | } |
| 372 | } |
| 373 | |
| 374 | /* |
| 375 | *---------------------------------------------------------------------- |
| 376 | * |
| 377 | * SchedLogRollCallback -- |
| 378 | * |
| 379 | * Callback for scheduled procedure to roll the client logfile. |
| 380 | * |
| 381 | * Results: |
| 382 | * None |
| 383 | * |
| 384 | * Side effects: |
| 385 | * Rolling the client logfile when configured. |
| 386 | * |
| 387 | *---------------------------------------------------------------------- |
| 388 | */ |
| 389 | static void |
| 390 | SchedLogRollCallback(void *arg, int UNUSED(id)UNUSED_id __attribute__((__unused__))) |
| 391 | { |
| 392 | NsServer *servPtr = (NsServer *)arg; |
| 393 | |
| 394 | Ns_Log(Notice, "httpclient: scheduled callback '%s'", |
| 395 | servPtr->httpclient.logFileName); |
| 396 | |
| 397 | HttpClientLogRoll(servPtr); |
| 398 | } |
| 399 | |
| 400 | /* |
| 401 | *---------------------------------------------------------------------- |
| 402 | * |
| 403 | * SchedLogArg -- |
| 404 | * |
| 405 | * Copy log filename as argument for callback introspection queries. |
| 406 | * |
| 407 | * Results: |
| 408 | * None. |
| 409 | * |
| 410 | * Side effects: |
| 411 | * None. |
| 412 | * |
| 413 | *---------------------------------------------------------------------- |
| 414 | */ |
| 415 | |
| 416 | static void |
| 417 | SchedLogArg(Tcl_DString *dsPtr, const void *arg) |
| 418 | { |
| 419 | const NsServer *servPtr = (NsServer *)arg; |
| 420 | |
| 421 | Tcl_DStringAppendElement(dsPtr, servPtr->httpclient.logFileName); |
| 422 | } |
| 423 | |
| 424 | /* |
| 425 | *---------------------------------------------------------------------- |
| 426 | * |
| 427 | * HttpClientLogRoll -- |
| 428 | * |
| 429 | * Rolling function for the client logfile. |
| 430 | * |
| 431 | * Results: |
| 432 | * None |
| 433 | * |
| 434 | * Side effects: |
| 435 | * Rolling the client logfile when configured. |
| 436 | * |
| 437 | *---------------------------------------------------------------------- |
| 438 | */ |
| 439 | static Ns_ReturnCode |
| 440 | HttpClientLogRoll(void *arg) |
| 441 | { |
| 442 | Ns_ReturnCode status = NS_OK; |
| 443 | NsServer *servPtr = (NsServer *)arg; |
| 444 | |
| 445 | Ns_Log(Notice, "httpclient: client roll '%s' (logging %d)", |
| 446 | servPtr->httpclient.logFileName, servPtr->httpclient.logging); |
| 447 | |
| 448 | if (servPtr->httpclient.logging) { |
| 449 | status = Ns_RollFileCondFmt(HttpClientLogOpen, HttpClientLogClose, servPtr, |
| 450 | servPtr->httpclient.logFileName, |
| 451 | servPtr->httpclient.logRollfmt, |
| 452 | servPtr->httpclient.logMaxbackup); |
| 453 | } |
| 454 | return status; |
| 455 | } |
| 456 | |
| 457 | /* |
| 458 | *---------------------------------------------------------------------- |
| 459 | * |
| 460 | * HttpClientLogOpen -- |
| 461 | * |
| 462 | * Function for opening the client logfile. This function is only called, |
| 463 | * when logging is configured. |
| 464 | * |
| 465 | * Results: |
| 466 | * NS_OK, NS_ERROR |
| 467 | * |
| 468 | * Side effects: |
| 469 | * Opening the client logfile. |
| 470 | * |
| 471 | *---------------------------------------------------------------------- |
| 472 | */ |
| 473 | static Ns_ReturnCode |
| 474 | HttpClientLogOpen(void *arg) |
| 475 | { |
| 476 | Ns_ReturnCode status; |
| 477 | NsServer *servPtr = (NsServer *)arg; |
| 478 | |
| 479 | servPtr->httpclient.fd = ns_openopen(servPtr->httpclient.logFileName, |
| 480 | O_APPEND02000 | O_WRONLY01 | O_CREAT0100 | O_CLOEXEC02000000, |
| 481 | 0644); |
| 482 | if (servPtr->httpclient.fd == NS_INVALID_FD(-1)) { |
| 483 | Ns_Log(Error, "httpclient: error '%s' opening '%s'", |
| 484 | strerror(errno(*__errno_location ())), servPtr->httpclient.logFileName); |
| 485 | status = NS_ERROR; |
| 486 | } else { |
| 487 | Ns_Log(Notice, "httpclient: logfile '%s' opened", |
| 488 | servPtr->httpclient.logFileName); |
| 489 | status = NS_OK; |
| 490 | } |
| 491 | return status; |
| 492 | } |
| 493 | |
| 494 | /* |
| 495 | *---------------------------------------------------------------------- |
| 496 | * |
| 497 | * HttpClientLogClose -- |
| 498 | * |
| 499 | * Function for closing the client logfile when configured. |
| 500 | * |
| 501 | * Results: |
| 502 | * NS_OK, NS_ERROR |
| 503 | * |
| 504 | * Side effects: |
| 505 | * Closing the client logfile when configured. |
| 506 | * |
| 507 | *---------------------------------------------------------------------- |
| 508 | */ |
| 509 | static Ns_ReturnCode |
| 510 | HttpClientLogClose(void *arg) |
| 511 | { |
| 512 | Ns_ReturnCode status = NS_OK; |
| 513 | NsServer *servPtr = (NsServer *)arg; |
| 514 | |
| 515 | if (servPtr->httpclient.fd != NS_INVALID_FD(-1)) { |
| 516 | Ns_Log(Notice, "httpclient: logfile '%s' try to close (fd %d)", |
| 517 | servPtr->httpclient.logFileName, servPtr->httpclient.fd); |
| 518 | |
| 519 | ns_closeclose(servPtr->httpclient.fd); |
| 520 | servPtr->httpclient.fd = NS_INVALID_FD(-1); |
| 521 | Ns_Log(Notice, "httpclient: logfile '%s' closed", |
| 522 | servPtr->httpclient.logFileName); |
| 523 | } |
| 524 | |
| 525 | return status; |
| 526 | } |
| 527 | |
| 528 | /* |
| 529 | *---------------------------------------------------------------------- |
| 530 | * |
| 531 | * NsStopHttp -- |
| 532 | * |
| 533 | * Function to be called, when the server shuts down. |
| 534 | * |
| 535 | * Results: |
| 536 | * None |
| 537 | * |
| 538 | * Side effects: |
| 539 | * Closing the client logfile when configured. |
| 540 | * |
| 541 | *---------------------------------------------------------------------- |
| 542 | */ |
| 543 | void |
| 544 | NsStopHttp(NsServer *servPtr) |
| 545 | { |
| 546 | NS_NONNULL_ASSERT(servPtr != NULL)((void) (0)); |
| 547 | |
| 548 | (void)HttpClientLogClose(servPtr); |
| 549 | } |
| 550 | |
| 551 | |
| 552 | /* |
| 553 | *---------------------------------------------------------------------- |
| 554 | * |
| 555 | * SkipDigits -- |
| 556 | * |
| 557 | * Helper function of Ns_HttpParseHost() to skip digits in a string. |
| 558 | * |
| 559 | * Results: |
| 560 | * First non-digit character. |
| 561 | * |
| 562 | * Side effects: |
| 563 | * none |
| 564 | * |
| 565 | *---------------------------------------------------------------------- |
| 566 | */ |
| 567 | static char* |
| 568 | SkipDigits(char *chars) |
| 569 | { |
| 570 | for (; *chars >= '0' && *chars <= '9'; chars++) { |
| 571 | ; |
| 572 | } |
| 573 | return chars; |
| 574 | } |
| 575 | |
| 576 | |
| 577 | |
| 578 | /* |
| 579 | *---------------------------------------------------------------------- |
| 580 | * |
| 581 | * Ns_HttpParseHost2, Ns_HttpParseHost -- |
| 582 | * |
| 583 | * Obtain the hostname from a writable string |
| 584 | * using syntax as specified in RFC 3986 section 3.2.2. |
| 585 | * |
| 586 | * Examples: |
| 587 | * |
| 588 | * [2001:db8:1f70::999:de8:7648:6e8]:8000 (IP-literal notation) |
| 589 | * openacs.org:80 (reg-name notation) |
| 590 | * |
| 591 | * Ns_HttpParseHost() is the legacy version of Ns_HttpParseHost2(). |
| 592 | * |
| 593 | * Results: |
| 594 | * Boolean value indicating success. |
| 595 | * |
| 596 | * In addition, parts of the parsed content is returned via the |
| 597 | * provided pointers: |
| 598 | * |
| 599 | * - If a port is indicated after the hostname, the "portStart" |
| 600 | * will contain a string starting with ":", otherwise NULL. |
| 601 | * |
| 602 | * - If "hostStart" is non-null, a pointer will point to the |
| 603 | * hostname, which will be terminated by '\0' in case of an IPv6 |
| 604 | * address in IP-literal notation. |
| 605 | * |
| 606 | * Note: Ns_HttpParseHost2 can be used to parse empty host/port |
| 607 | * values. To detect these cases, use a test like |
| 608 | * |
| 609 | * if (hostParsedOk && hostString != end && hostStart != portStart) ... |
| 610 | * |
| 611 | * Side effects: |
| 612 | * May write NUL character '\0' into the passed hostString. |
| 613 | * |
| 614 | *---------------------------------------------------------------------- |
| 615 | */ |
| 616 | void |
| 617 | Ns_HttpParseHost( |
| 618 | char *hostString, |
| 619 | char **hostStart, |
| 620 | char **portStart |
| 621 | ) { |
| 622 | char *end; |
| 623 | |
| 624 | NS_NONNULL_ASSERT(hostString != NULL)((void) (0)); |
| 625 | NS_NONNULL_ASSERT(portStart != NULL)((void) (0)); |
| 626 | |
| 627 | (void) Ns_HttpParseHost2(hostString, NS_FALSE0, hostStart, portStart, &end); |
| 628 | if (*portStart != NULL((void*)0)) { |
| 629 | /* |
| 630 | * The old version was returning in portStart the position of the |
| 631 | * character BEFORE the port (usually ':'). So, keep compatibility. |
| 632 | */ |
| 633 | *portStart = *portStart-1; |
| 634 | } |
| 635 | } |
| 636 | |
| 637 | bool_Bool |
| 638 | Ns_HttpParseHost2( |
| 639 | char *hostString, |
| 640 | bool_Bool strict, |
| 641 | char **hostStart, |
| 642 | char **portStart, |
| 643 | char **end |
| 644 | ) { |
| 645 | bool_Bool ipLiteral = NS_FALSE0, success = NS_TRUE1; |
| 646 | |
| 647 | /* |
| 648 | * RFC 3986 defines |
| 649 | * |
| 650 | * reg-name = *( unreserved / pct-encoded / sub-delims ) |
| 651 | * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" |
| 652 | * sub-delims = "!" / "$" / "&" / "'" / "(" / ")" |
| 653 | * / "*" / "+" / "," / ";" / "=" |
| 654 | * |
| 655 | * ALPHA = (%41-%5A and %61-%7A) |
| 656 | * DIGIT = (%30-%39), |
| 657 | * hyphen (%2D), period (%2E), underscore (%5F), tilde (%7E) |
| 658 | * exclam (%21) dollar (%24) amp (%26) singlequote (%27) |
| 659 | * lparen (%28) lparen (%29) asterisk (%2A) plus (%2B) |
| 660 | * comma (%2C) semicolon (%3B) equals (%3D) |
| 661 | * |
| 662 | * However, errata #4942 of RFC 3986 says: |
| 663 | * |
| 664 | * reg-name = *( unreserved / pct-encoded / "-" / ".") |
| 665 | * |
| 666 | * A reg-name consists of a sequence of domain labels separated by ".", |
| 667 | * each domain label starting and ending with an alphanumeric character |
| 668 | * and possibly also containing "-" characters. The rightmost domain |
| 669 | * label of a fully qualified domain name in DNS may be followed by a |
| 670 | * single "." and should be if it is necessary to distinguish between the |
| 671 | * complete domain name and some local domain. |
| 672 | * |
| 673 | * Percent-encoded is just checked by the character range, but does not |
| 674 | * check the two following (number) chars. |
| 675 | * |
| 676 | * percent (%25) ... for percent-encoded |
| 677 | */ |
| 678 | static const bool_Bool regname_table[256] = { |
| 679 | /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ |
| 680 | /* 0x00 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 681 | /* 0x10 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 682 | /* 0x20 */ 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, |
| 683 | /* 0x30 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, |
| 684 | /* 0x40 */ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 685 | /* 0x50 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, |
| 686 | /* 0x60 */ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 687 | /* 0x70 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, |
| 688 | /* 0x80 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 689 | /* 0x90 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 690 | /* 0xa0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 691 | /* 0xb0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 692 | /* 0xc0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 693 | /* 0xd0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 694 | /* 0xe0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 695 | /* 0xf0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 |
| 696 | }; |
| 697 | |
| 698 | /* |
| 699 | * Host name delimiters ":/?#" and NUL |
| 700 | */ |
| 701 | static const bool_Bool delimiter_table[256] = { |
| 702 | /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ |
| 703 | /* 0x00 */ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 704 | /* 0x10 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 705 | /* 0x20 */ 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, |
| 706 | /* 0x30 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, |
| 707 | /* 0x40 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 708 | /* 0x50 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 709 | /* 0x60 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 710 | /* 0x70 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 711 | /* 0x80 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 712 | /* 0x90 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 713 | /* 0xa0 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 714 | /* 0xb0 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 715 | /* 0xc0 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 716 | /* 0xd0 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 717 | /* 0xe0 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 718 | /* 0xf0 */ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 |
| 719 | }; |
| 720 | |
| 721 | NS_NONNULL_ASSERT(hostString != NULL)((void) (0)); |
| 722 | NS_NONNULL_ASSERT(portStart != NULL)((void) (0)); |
| 723 | NS_NONNULL_ASSERT(end != NULL)((void) (0)); |
| 724 | |
| 725 | /* |
| 726 | * RFC 3986 defines |
| 727 | * |
| 728 | * host = IP-literal / IPv4address / reg-name |
| 729 | * IP-literal = "[" ( IPv6address / IPvFuture ) "]" |
| 730 | */ |
| 731 | if (*hostString == '[') { |
| 732 | char *p; |
| 733 | |
| 734 | /* |
| 735 | * This looks like an address in IP-literal notation in square brackets. |
| 736 | */ |
| 737 | p = strchr(hostString + 1, INTCHAR(']')((int)((unsigned char)((']'))))); |
| 738 | if (p != NULL((void*)0)) { |
| 739 | ipLiteral = NS_TRUE1; |
| 740 | |
| 741 | /* |
| 742 | * Zero-byte terminate the IP-literal if hostStart is given. |
| 743 | */ |
| 744 | if (hostStart != NULL((void*)0)) { |
| 745 | *p = '\0'; |
| 746 | *hostStart = hostString + 1; |
| 747 | } |
| 748 | p++; |
| 749 | if (*p == ':') { |
| 750 | *(p++) = '\0'; |
| 751 | *portStart = p; |
| 752 | *end = SkipDigits(p); |
| 753 | } else { |
| 754 | *portStart = NULL((void*)0); |
| 755 | *end = p; |
| 756 | } |
| 757 | /*fprintf(stderr, "==== IP literal portStart '%s' end '%s'\n", *portStart, *end);*/ |
| 758 | } else { |
| 759 | /* |
| 760 | * There is no closing square bracket |
| 761 | */ |
| 762 | success = NS_FALSE0; |
| 763 | *portStart = NULL((void*)0); |
| 764 | if (hostStart != NULL((void*)0)) { |
| 765 | *hostStart = NULL((void*)0); |
| 766 | } |
| 767 | *end = p; |
| 768 | } |
| 769 | } |
| 770 | if (success && !ipLiteral) { |
| 771 | char *p; |
| 772 | |
| 773 | /* |
| 774 | * Still to handle from the RFC 3986 "host" rule: |
| 775 | * |
| 776 | * host = .... / IPv4address / reg-name |
| 777 | * |
| 778 | * Character-wise, IPv4address is a special case of reg-name. |
| 779 | * |
| 780 | * reg-name = *( unreserved / pct-encoded / sub-delims ) |
| 781 | * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" |
| 782 | * sub-delims = "!" / "$" / "&" / "'" / "(" / ")" |
| 783 | * / "*" / "+" / "," / ";" / "=" |
| 784 | * |
| 785 | * However: errata #4942 of RFC 3986 says: |
| 786 | * |
| 787 | * reg-name = *( unreserved / pct-encoded / "-" / ".") |
| 788 | * |
| 789 | * which is more in sync with reality. In the errata, the two |
| 790 | * explicitly mentioned characters are not needed, since these are |
| 791 | * already part of "unreserved". Probably, there are characters in |
| 792 | * "unreserved", which are not desired either. |
| 793 | * |
| 794 | * RFC 3986 sec 3.2: The authority component is preceded by a double |
| 795 | * slash ("//") and is terminated by the next slash ("/"), question |
| 796 | * mark ("?"), or number sign ("#") character, or by the end of the |
| 797 | * URI. |
| 798 | * |
| 799 | */ |
| 800 | |
| 801 | if (strict) { |
| 802 | /* |
| 803 | * Use the table based on regname + errata in RFC 3986. |
| 804 | */ |
| 805 | for (p = hostString; regname_table[UCHAR(*p)((unsigned char)(*p))]; p++) { |
| 806 | ; |
| 807 | } |
| 808 | } else { |
| 809 | /* |
| 810 | * Just scan for the bare necessity based on delimiters. |
| 811 | */ |
| 812 | for (p = hostString; delimiter_table[UCHAR(*p)((unsigned char)(*p))]; p++) { |
| 813 | ; |
| 814 | } |
| 815 | |
| 816 | } |
| 817 | /* |
| 818 | * The host is not allowed to start with a dot ("dots are separators |
| 819 | * for labels"), and it has to be at least one character long. |
| 820 | * |
| 821 | * Colon is not part of the allowed characters in reg-name, so we can |
| 822 | * use it to determine the (optional) port. |
| 823 | * |
| 824 | */ |
| 825 | success = (*hostString != '.' |
| 826 | && (*p == '\0' || *p == ':' || *p == '/' || *p == '?' || *p == '#')); |
| 827 | if (*p == ':') { |
| 828 | *(p++) = '\0'; |
| 829 | *portStart = p; |
| 830 | *end = SkipDigits(p); |
| 831 | } else { |
| 832 | *portStart = NULL((void*)0); |
| 833 | *end = p; |
| 834 | } |
| 835 | |
| 836 | /* fprintf(stderr, "==== p %.2x, success %d '%s'\n", *p, success, hostString); */ |
| 837 | |
| 838 | if (hostStart != NULL((void*)0)) { |
| 839 | *hostStart = hostString; |
| 840 | } |
| 841 | } |
| 842 | |
| 843 | /* |
| 844 | * When a port is found, make sure, the port is at least one digit. |
| 845 | * We could consider making the test only in the non-strict case, |
| 846 | * but it is hard to believe that zero-byte ports make sense in any |
| 847 | * scenario. |
| 848 | */ |
| 849 | if (success && *portStart != NULL((void*)0)) { |
| 850 | success = (*portStart != *end); |
| 851 | } |
| 852 | |
| 853 | return success; |
| 854 | } |
| 855 | |
| 856 | |
| 857 | /* |
| 858 | *---------------------------------------------------------------------- |
| 859 | * |
| 860 | * Ns_HttpLocationString -- |
| 861 | * |
| 862 | * Build an HTTP location string following the IP literation |
| 863 | * notation as in RFC 3986 section 3.2.2 in the provided |
| 864 | * Tcl_DString. In case protoString is non-null, prepend |
| 865 | * the protocol. In case port != defPort, append the port. |
| 866 | * |
| 867 | * Results: |
| 868 | * Location strings such as e.g. |
| 869 | * [2001:db8:1f70::999:de8:7648:6e8]:8000 (IP-literal notation) |
| 870 | * https://openacs.org (reg-name notation) |
| 871 | * |
| 872 | * Side effects: |
| 873 | * Modifies passed Tcl_DString |
| 874 | * |
| 875 | *---------------------------------------------------------------------- |
| 876 | */ |
| 877 | |
| 878 | char * |
| 879 | Ns_HttpLocationString( |
| 880 | Tcl_DString *dsPtr, |
| 881 | const char *protoString, |
| 882 | const char *hostString, |
| 883 | unsigned short port, |
| 884 | unsigned short defPort |
| 885 | ) { |
| 886 | NS_NONNULL_ASSERT(dsPtr != NULL)((void) (0)); |
| 887 | NS_NONNULL_ASSERT(hostString != NULL)((void) (0)); |
| 888 | |
| 889 | if (protoString != NULL((void*)0)) { |
| 890 | Ns_DStringVarAppend(dsPtr, protoString, "://", (char *)0L); |
| 891 | } |
| 892 | if (port == 0 && defPort == 0) { |
| 893 | /* |
| 894 | * We assume, that the host contains already a port (as provided from |
| 895 | * the host header field), and all we have to do is to prepend the |
| 896 | * protocol prefix. |
| 897 | */ |
| 898 | Ns_DStringVarAppend(dsPtr, hostString, (char *)0L); |
| 899 | } else { |
| 900 | if (strchr(hostString, INTCHAR(':')((int)((unsigned char)((':'))))) != NULL((void*)0)) { |
| 901 | Ns_DStringVarAppend(dsPtr, "[", hostString, "]", (char *)0L); |
| 902 | } else { |
| 903 | Ns_DStringVarAppend(dsPtr, hostString, (char *)0L); |
| 904 | } |
| 905 | if (port != defPort) { |
| 906 | (void) Ns_DStringPrintf(dsPtr, ":%d", port); |
| 907 | } |
| 908 | } |
| 909 | |
| 910 | return dsPtr->string; |
| 911 | } |
| 912 | |
| 913 | |
| 914 | /* |
| 915 | *---------------------------------------------------------------------- |
| 916 | * |
| 917 | * Ns_HttpMessageParse -- |
| 918 | * |
| 919 | * Parse an HTTP message (response line and headers). |
| 920 | * The headers are returned into the provided Ns_Set, |
| 921 | * while the rest is returned via output args. |
| 922 | * |
| 923 | * Results: |
| 924 | * Ns_ReturnCode |
| 925 | * |
| 926 | * Side effects: |
| 927 | * None. |
| 928 | * |
| 929 | *---------------------------------------------------------------------- |
| 930 | */ |
| 931 | |
| 932 | Ns_ReturnCode |
| 933 | Ns_HttpMessageParse( |
| 934 | char *message, |
| 935 | size_t size, |
| 936 | Ns_Set *hdrPtr, |
| 937 | int *majorPtr, |
| 938 | int *minorPtr, |
| 939 | int *statusPtr, |
| 940 | char **payloadPtr |
| 941 | ) { |
| 942 | Ns_ReturnCode status = NS_OK; |
| 943 | int items, major, minor; |
| 944 | |
| 945 | NS_NONNULL_ASSERT(hdrPtr != NULL)((void) (0)); |
| 946 | NS_NONNULL_ASSERT(message != NULL)((void) (0)); |
| 947 | NS_NONNULL_ASSERT(statusPtr != NULL)((void) (0)); |
| 948 | |
| 949 | if (majorPtr == NULL((void*)0)) { |
| 950 | majorPtr = &major; |
| 951 | } |
| 952 | if (minorPtr == NULL((void*)0)) { |
| 953 | minorPtr = &minor; |
| 954 | } |
| 955 | /* |
| 956 | * If provided, set *payloadPtr always to a sensible value. |
| 957 | * And... risk the memory leak! |
| 958 | */ |
| 959 | if (payloadPtr != NULL((void*)0)) { |
| 960 | *payloadPtr = NULL((void*)0); |
| 961 | } |
| 962 | |
| 963 | items = sscanf(message, "HTTP/%2d.%2d %3d", majorPtr, minorPtr, statusPtr); |
| 964 | if (items != 3) { |
| 965 | status = NS_ERROR; |
| 966 | } else { |
| 967 | char *p, *eol; |
| 968 | int firsthdr = 1; |
| 969 | size_t parsed; |
| 970 | |
| 971 | p = message; |
| 972 | while ((eol = strchr(p, INTCHAR('\n')((int)((unsigned char)(('\n')))))) != NULL((void*)0)) { |
| 973 | size_t len; |
| 974 | |
| 975 | *eol++ = '\0'; |
| 976 | len = (size_t)((eol-p)-1); |
| 977 | |
| 978 | if (len > 0u && p[len - 1u] == '\r') { |
| 979 | p[len - 1u] = '\0'; |
| 980 | } |
| 981 | if (firsthdr != 0) { |
| 982 | if (hdrPtr->name != NULL((void*)0)) { |
| 983 | ns_free((void *)hdrPtr->name); |
| 984 | } |
| 985 | hdrPtr->name = ns_strdup(p); |
| 986 | firsthdr = 0; |
| 987 | } else if (len < 2 || Ns_ParseHeader(hdrPtr, p, NULL((void*)0), ToLower, NULL((void*)0)) != NS_OK) { |
| 988 | break; |
| 989 | } |
| 990 | p = eol; |
| 991 | } |
| 992 | parsed = (size_t)(p - message); |
| 993 | |
| 994 | Ns_Log(Ns_LogRequestDebug, "Ns_ParseHeader <%s> len %" PRIuz"zu" " parsed %" |
| 995 | PRIuz"zu", message, size, parsed); |
| 996 | |
| 997 | if (payloadPtr != NULL((void*)0) && (size - parsed) >= 2u) { |
| 998 | p += 2; |
| 999 | *payloadPtr = p; |
| 1000 | } |
| 1001 | } |
| 1002 | |
| 1003 | return status; |
| 1004 | } |
| 1005 | |
| 1006 | |
| 1007 | /* |
| 1008 | *---------------------------------------------------------------------- |
| 1009 | * |
| 1010 | * NsTclHttpObjCmd -- |
| 1011 | * |
| 1012 | * Implements "ns_http". This caommand is the general interface for |
| 1013 | * handling HTTP client requests. |
| 1014 | * |
| 1015 | * Results: |
| 1016 | * Standard Tcl result. |
| 1017 | * |
| 1018 | * Side effects: |
| 1019 | * Depens on the subcommand. |
| 1020 | * |
| 1021 | *---------------------------------------------------------------------- |
| 1022 | */ |
| 1023 | |
| 1024 | int |
| 1025 | NsTclHttpObjCmd( |
| 1026 | ClientData clientData, |
| 1027 | Tcl_Interp *interp, |
| 1028 | int objc, |
| 1029 | Tcl_Obj *const* objv |
| 1030 | ) { |
| 1031 | const Ns_SubCmdSpec subcmds[] = { |
| 1032 | {"cancel", HttpCancelObjCmd}, |
| 1033 | {"cleanup", HttpCleanupObjCmd}, |
| 1034 | {"list", HttpListObjCmd}, |
| 1035 | {"queue", HttpQueueObjCmd}, |
| 1036 | {"run", HttpRunObjCmd}, |
| 1037 | {"stats", HttpStatsObjCmd}, |
| 1038 | {"wait", HttpWaitObjCmd}, |
| 1039 | {NULL((void*)0), NULL((void*)0)} |
| 1040 | }; |
| 1041 | |
| 1042 | return Ns_SubcmdObjv(subcmds, clientData, interp, objc, objv); |
| 1043 | } |
| 1044 | |
| 1045 | |
| 1046 | /* |
| 1047 | *---------------------------------------------------------------------- |
| 1048 | * |
| 1049 | * HttpRunObjCmd |
| 1050 | * |
| 1051 | * Implements "ns_http run". |
| 1052 | * |
| 1053 | * Results: |
| 1054 | * Standard Tcl result. |
| 1055 | * |
| 1056 | * Side effects: |
| 1057 | * None. |
| 1058 | * |
| 1059 | *---------------------------------------------------------------------- |
| 1060 | */ |
| 1061 | |
| 1062 | static int |
| 1063 | HttpRunObjCmd( |
| 1064 | ClientData clientData, |
| 1065 | Tcl_Interp *UNUSED(interp)UNUSED_interp __attribute__((__unused__)), |
| 1066 | int objc, |
| 1067 | Tcl_Obj *const* objv |
| 1068 | ) { |
| 1069 | return HttpQueue(clientData, objc, objv, NS_TRUE1); |
| 1070 | } |
| 1071 | |
| 1072 | |
| 1073 | /* |
| 1074 | *---------------------------------------------------------------------- |
| 1075 | * |
| 1076 | * HttpQueueObjCmd |
| 1077 | * |
| 1078 | * Implements "ns_http queue". |
| 1079 | * |
| 1080 | * Results: |
| 1081 | * Standard Tcl result. |
| 1082 | * |
| 1083 | * Side effects: |
| 1084 | * None. |
| 1085 | * |
| 1086 | *---------------------------------------------------------------------- |
| 1087 | */ |
| 1088 | |
| 1089 | static int |
| 1090 | HttpQueueObjCmd( |
| 1091 | ClientData clientData, |
| 1092 | Tcl_Interp *UNUSED(interp)UNUSED_interp __attribute__((__unused__)), |
| 1093 | int objc, |
| 1094 | Tcl_Obj *const* objv |
| 1095 | ) { |
| 1096 | return HttpQueue(clientData, objc, objv, NS_FALSE0); |
| 1097 | } |
| 1098 | |
| 1099 | |
| 1100 | /* |
| 1101 | *---------------------------------------------------------------------- |
| 1102 | * |
| 1103 | * HttpWaitObjCmd -- |
| 1104 | * |
| 1105 | * Implements "ns_http wait". |
| 1106 | * |
| 1107 | * Results: |
| 1108 | * Standard Tcl result. |
| 1109 | * |
| 1110 | * Side effects: |
| 1111 | * Typically closing request. |
| 1112 | * |
| 1113 | * The current [ns_http wait] API is broken w.r.t options |
| 1114 | * being accepted on the command line, as some of the |
| 1115 | * options may influence the request processing in the |
| 1116 | * detached task which is running asynchronously in the |
| 1117 | * task thread. |
| 1118 | * |
| 1119 | * At the time of [ns_http wait] the task may have been |
| 1120 | * completed already, so manipulating task options at |
| 1121 | * this point is meaningless and error-prone. |
| 1122 | * |
| 1123 | * The "problematic" options include: |
| 1124 | * |
| 1125 | * -headers |
| 1126 | * Every dispatched task stores reply headers in the |
| 1127 | * private ns_set and this set is provided as a part |
| 1128 | * of the command result. Putting extra headers will |
| 1129 | * only copy the internal set over, thus adding nothing |
| 1130 | * more of a value than a waste of time. |
| 1131 | * |
| 1132 | * -spoolsize |
| 1133 | * This limits the size of the reply content that is |
| 1134 | * being stored in memory during the task processing. |
| 1135 | * However, the task may already handle the body at |
| 1136 | * the time somebody calls [ns_http wait] so changing |
| 1137 | * this value may have no real effect (any more). |
| 1138 | * |
| 1139 | * -outputfile |
| 1140 | * This, in conjunction with -spoolsize instructs the task |
| 1141 | * to store response content in a given file. But again, at |
| 1142 | * the time this command is called, the task may have been |
| 1143 | * completely done and the content may already sit in a |
| 1144 | * temporary file (name of which can be obtained by -file). |
| 1145 | * |
| 1146 | * -decompress |
| 1147 | * This flag tells the task to automatically decompress |
| 1148 | * gzip'ed content. At the time of [ns_http wait] the |
| 1149 | * content may have been received and left compressed |
| 1150 | * already, so setting this flag may have no effect. |
| 1151 | * |
| 1152 | * We should eliminate above options from the API at some time. |
| 1153 | * At the moment they are declared deprecated but the old |
| 1154 | * implementation is still there. However, be aware that it may |
| 1155 | * not work as you expect. |
| 1156 | * |
| 1157 | * At the same time, all of the optional variables that |
| 1158 | * might receive information about the wait'ed task are |
| 1159 | * deprecated. The command result returns a Tcl dict with |
| 1160 | * all of those already calculated, so there is no need |
| 1161 | * for extra command options any more. |
| 1162 | * |
| 1163 | *---------------------------------------------------------------------- |
| 1164 | */ |
| 1165 | |
| 1166 | static int |
| 1167 | HttpWaitObjCmd( |
| 1168 | ClientData clientData, |
| 1169 | Tcl_Interp *interp, |
| 1170 | int objc, |
| 1171 | Tcl_Obj *const* objv |
| 1172 | ) { |
| 1173 | NsInterp *itPtr = clientData; |
| 1174 | NsHttpTask *httpPtr = NULL((void*)0); |
| 1175 | |
| 1176 | char *id = NULL((void*)0), *outputFileName = NULL((void*)0); |
| 1177 | int result = TCL_OK0, decompress = 0, binary = 0; |
| 1178 | Tcl_WideInt spoolLimit = -1; |
| 1179 | Tcl_Obj *elapsedVarObj = NULL((void*)0), |
| 1180 | *resultVarObj = NULL((void*)0), |
| 1181 | *statusVarObj = NULL((void*)0), |
| 1182 | *fileVarObj = NULL((void*)0); |
| 1183 | Ns_Set *replyHeaders = NULL((void*)0); |
| 1184 | Ns_Time *timeoutPtr = NULL((void*)0); |
| 1185 | |
| 1186 | Ns_ObjvSpec opts[] = { |
| 1187 | {"-binary", Ns_ObjvBool, &binary, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 1188 | {"-decompress", Ns_ObjvBool, &decompress, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 1189 | {"-elapsed", Ns_ObjvObj, &elapsedVarObj, NULL((void*)0)}, |
| 1190 | {"-file", Ns_ObjvObj, &fileVarObj, NULL((void*)0)}, |
| 1191 | {"-headers", Ns_ObjvSet, &replyHeaders, NULL((void*)0)}, |
| 1192 | {"-outputfile", Ns_ObjvString, &outputFileName, NULL((void*)0)}, |
| 1193 | {"-result", Ns_ObjvObj, &resultVarObj, NULL((void*)0)}, |
| 1194 | {"-spoolsize", Ns_ObjvMemUnit, &spoolLimit, NULL((void*)0)}, |
| 1195 | {"-status", Ns_ObjvObj, &statusVarObj, NULL((void*)0)}, |
| 1196 | {"-timeout", Ns_ObjvTime, &timeoutPtr, NULL((void*)0)}, |
| 1197 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1198 | }; |
| 1199 | Ns_ObjvSpec args[] = { |
| 1200 | {"id", Ns_ObjvString, &id, NULL((void*)0)}, |
| 1201 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1202 | }; |
| 1203 | |
| 1204 | NS_NONNULL_ASSERT(itPtr != NULL)((void) (0)); |
| 1205 | |
| 1206 | if (Ns_ParseObjv(opts, args, interp, 2, objc, objv) != NS_OK) { |
| 1207 | result = TCL_ERROR1; |
| 1208 | |
| 1209 | } else if (HttpGet(itPtr, id, &httpPtr, NS_TRUE1) == NS_FALSE0) { |
| 1210 | result = TCL_ERROR1; |
| 1211 | |
| 1212 | } else { |
| 1213 | Ns_ReturnCode rc; |
| 1214 | |
| 1215 | /* |
| 1216 | * All following options are not supposed to be present here. |
| 1217 | * The command API should be cleansed, but for now, lets play |
| 1218 | * backward compatibility... |
| 1219 | */ |
| 1220 | if (replyHeaders != NULL((void*)0)) { |
| 1221 | Ns_Log(Warning, "ns_http_wait: -headers option is deprecated"); |
| 1222 | } |
| 1223 | if (decompress != 0) { |
| 1224 | Ns_Log(Warning, "ns_http_wait: ignore obsolete flag -decompress"); |
| 1225 | } |
| 1226 | |
| 1227 | if (binary != 0) { |
| 1228 | Ns_Log(Warning, "ns_http_wait: -binary option is deprecated"); |
| 1229 | httpPtr->flags |= NS_HTTP_FLAG_BINARY(1u<<4); |
| 1230 | } |
| 1231 | if (spoolLimit > -1) { |
| 1232 | Ns_Log(Warning, "ns_http_wait: -spoolsize option is deprecated"); |
| 1233 | httpPtr->spoolLimit = spoolLimit; |
| 1234 | } |
| 1235 | if (outputFileName != NULL((void*)0)) { |
| 1236 | Ns_Log(Warning, "ns_http_wait: -outputfile option is deprecated"); |
| 1237 | Ns_MutexLock(&httpPtr->lock); |
| 1238 | if (httpPtr->spoolFileName != NULL((void*)0)) { |
| 1239 | Ns_Log(Warning, "ns_http_wait: the -outputfile was already" |
| 1240 | " set in the ns_http_queue; ignored!"); |
| 1241 | } else { |
| 1242 | httpPtr->spoolFileName = ns_strdup(outputFileName); |
| 1243 | } |
| 1244 | Ns_MutexUnlock(&httpPtr->lock); |
| 1245 | } |
| 1246 | /* |
| 1247 | * Always decompress unless told differently. Here we do not have the |
| 1248 | * "-raw" option, since we do not need backward compatibility. |
| 1249 | */ |
| 1250 | httpPtr->flags |= NS_HTTP_FLAG_DECOMPRESS(1u<<0); |
| 1251 | |
| 1252 | if (elapsedVarObj != NULL((void*)0)) { |
| 1253 | Ns_Log(Warning, "ns_http_wait: -elapsed option is deprecated"); |
| 1254 | } |
| 1255 | if (resultVarObj != NULL((void*)0)) { |
| 1256 | Ns_Log(Warning, "ns_http_wait: -result option is deprecated"); |
| 1257 | } |
| 1258 | if (statusVarObj != NULL((void*)0)) { |
| 1259 | Ns_Log(Warning, "ns_http_wait: -status option is deprecated"); |
| 1260 | } |
| 1261 | if (fileVarObj != NULL((void*)0)) { |
| 1262 | Ns_Log(Warning, "ns_http_wait: -file option is deprecated"); |
| 1263 | } |
| 1264 | if (timeoutPtr == NULL((void*)0)) { |
| 1265 | timeoutPtr = httpPtr->timeout; |
| 1266 | } |
| 1267 | |
| 1268 | rc = Ns_TaskWait(httpPtr->task, timeoutPtr); |
| 1269 | |
| 1270 | if (likely(rc == NS_OK)(__builtin_expect((rc == NS_OK), 1))) { |
| 1271 | result = HttpGetResult(interp, httpPtr); |
| 1272 | } else { |
| 1273 | HttpCancel(httpPtr); |
| 1274 | Tcl_SetObjResult(interp, Tcl_NewStringObj(httpPtr->error, -1)); |
| 1275 | if (rc == NS_TIMEOUT) { |
| 1276 | Tcl_SetErrorCode(interp, errorCodeTimeoutString, (char *)0L); |
| 1277 | Ns_Log(Ns_LogTimeoutDebug, "ns_http request '%s' runs into timeout", |
| 1278 | httpPtr->url); |
| 1279 | HttpClientLogWrite(httpPtr, "tasktimeout"); |
| 1280 | } |
| 1281 | result = TCL_ERROR1; |
| 1282 | } |
| 1283 | |
| 1284 | /* |
| 1285 | * This part is deprecated and can be removed |
| 1286 | * once we go up to a next major version |
| 1287 | * where [ns_http wait] will accept no options. |
| 1288 | */ |
| 1289 | if (result == TCL_OK0) { |
| 1290 | int ii; |
| 1291 | Tcl_Obj *rObj, *vObj, *oObj[8]; |
| 1292 | |
| 1293 | /* |
| 1294 | * Pick up corresponding dictionary elements |
| 1295 | * and fill-in passed variables. |
| 1296 | */ |
| 1297 | oObj[0] = Tcl_NewStringObj("time", 4); |
| 1298 | oObj[1] = elapsedVarObj; |
| 1299 | |
| 1300 | oObj[2] = Tcl_NewStringObj("body", 4); |
| 1301 | oObj[3] = resultVarObj; |
| 1302 | |
| 1303 | oObj[4] = Tcl_NewStringObj("status", 6); |
| 1304 | oObj[5] = statusVarObj; |
| 1305 | |
| 1306 | oObj[6] = Tcl_NewStringObj("file", 4); |
| 1307 | oObj[7] = fileVarObj; |
| 1308 | |
| 1309 | rObj = Tcl_GetObjResult(interp); |
| 1310 | |
| 1311 | for (ii = 0; ii < 8; ii += 2) { |
| 1312 | Tcl_DictObjGet(interp, rObj, oObj[ii], &vObj); |
| 1313 | if (oObj[ii+1] != NULL((void*)0) && vObj != NULL((void*)0)) { |
| 1314 | if (Ns_SetNamedVar(interp, oObj[ii+1], vObj) == NS_FALSE0) { |
| 1315 | result = TCL_ERROR1; |
| 1316 | } |
| 1317 | } |
| 1318 | Tcl_DecrRefCount(oObj[ii])do { Tcl_Obj *_objPtr = (oObj[ii]); if (_objPtr->refCount-- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 1319 | } |
| 1320 | |
| 1321 | if (replyHeaders != NULL((void*)0)) { |
| 1322 | Ns_Set *headers; |
| 1323 | Tcl_Obj *kObj; |
| 1324 | |
| 1325 | /* |
| 1326 | * Merge reply headers into the user-passed set. |
| 1327 | */ |
| 1328 | kObj = Tcl_NewStringObj("headers", 7); |
| 1329 | Tcl_DictObjGet(interp, rObj, kObj, &vObj); |
| 1330 | Tcl_DecrRefCount(kObj)do { Tcl_Obj *_objPtr = (kObj); if (_objPtr->refCount-- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 1331 | NS_NONNULL_ASSERT(vObj != NULL)((void) (0)); |
| 1332 | headers = Ns_TclGetSet(interp, Tcl_GetString(vObj)); |
| 1333 | NS_NONNULL_ASSERT(headers != NULL)((void) (0)); |
| 1334 | Ns_SetMerge(replyHeaders, headers); |
| 1335 | } |
| 1336 | } |
| 1337 | } |
| 1338 | |
| 1339 | if (httpPtr != NULL((void*)0)) { |
| 1340 | HttpSpliceChannels(interp, httpPtr); |
| 1341 | HttpClose(httpPtr); |
| 1342 | } |
| 1343 | |
| 1344 | return result; |
| 1345 | } |
| 1346 | |
| 1347 | |
| 1348 | /* |
| 1349 | *---------------------------------------------------------------------- |
| 1350 | * |
| 1351 | * HttpCancelObjCmd -- |
| 1352 | * |
| 1353 | * Implements "ns_http cancel". |
| 1354 | * |
| 1355 | * Results: |
| 1356 | * Standard Tcl result. |
| 1357 | * |
| 1358 | * Side effects: |
| 1359 | * Typically aborting and closing request. |
| 1360 | * |
| 1361 | *---------------------------------------------------------------------- |
| 1362 | */ |
| 1363 | |
| 1364 | static int |
| 1365 | HttpCancelObjCmd( |
| 1366 | ClientData clientData, |
| 1367 | Tcl_Interp *interp, |
| 1368 | int objc, |
| 1369 | Tcl_Obj *const* objv |
| 1370 | ) { |
| 1371 | NsInterp *itPtr = clientData; |
| 1372 | char *idString; |
| 1373 | int result = TCL_OK0; |
| 1374 | |
| 1375 | Ns_ObjvSpec args[] = { |
| 1376 | {"id", Ns_ObjvString, &idString, NULL((void*)0)}, |
| 1377 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1378 | }; |
| 1379 | |
| 1380 | if (Ns_ParseObjv(NULL((void*)0), args, interp, 2, objc, objv) != NS_OK) { |
| 1381 | result = TCL_ERROR1; |
| 1382 | |
| 1383 | } else { |
| 1384 | NsHttpTask *httpPtr = NULL((void*)0); |
| 1385 | |
| 1386 | if (HttpGet(itPtr, idString, &httpPtr, NS_TRUE1) == NS_FALSE0) { |
| 1387 | result = TCL_ERROR1; |
| 1388 | } else { |
| 1389 | HttpCancel(httpPtr); |
| 1390 | HttpSpliceChannels(interp, httpPtr); |
| 1391 | HttpClose(httpPtr); |
| 1392 | } |
| 1393 | } |
| 1394 | |
| 1395 | return result; |
| 1396 | } |
| 1397 | |
| 1398 | |
| 1399 | /* |
| 1400 | *---------------------------------------------------------------------- |
| 1401 | * |
| 1402 | * HttpCleanupObjCmd |
| 1403 | * |
| 1404 | * Implements "ns_http cleanup". |
| 1405 | * |
| 1406 | * Results: |
| 1407 | * Standard Tcl result. |
| 1408 | * |
| 1409 | * Side effects: |
| 1410 | * Cancel all pending requests. |
| 1411 | * Dirty-close of any task-associated body/output channels. |
| 1412 | * |
| 1413 | *---------------------------------------------------------------------- |
| 1414 | */ |
| 1415 | |
| 1416 | static int |
| 1417 | HttpCleanupObjCmd( |
| 1418 | ClientData clientData, |
| 1419 | Tcl_Interp *interp, |
| 1420 | int objc, |
| 1421 | Tcl_Obj *const* objv |
| 1422 | ) { |
| 1423 | NsInterp *itPtr = clientData; |
| 1424 | int result = TCL_OK0; |
| 1425 | |
| 1426 | if (Ns_ParseObjv(NULL((void*)0), NULL((void*)0), interp, 2, objc, objv) != NS_OK) { |
| 1427 | result = TCL_ERROR1; |
| 1428 | |
| 1429 | } else { |
| 1430 | Tcl_HashSearch search; |
| 1431 | Tcl_HashEntry *hPtr; |
| 1432 | |
| 1433 | for (hPtr = Tcl_FirstHashEntry(&itPtr->httpRequests, &search); |
| 1434 | hPtr != NULL((void*)0); |
| 1435 | hPtr = Tcl_NextHashEntry(&search)) { |
| 1436 | NsHttpTask *httpPtr; |
| 1437 | char *taskName; |
| 1438 | |
| 1439 | httpPtr = (NsHttpTask *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 1440 | assert(httpPtr != NULL)((void) (0)); |
| 1441 | |
| 1442 | taskName = Tcl_GetHashKey(&itPtr->httpRequests, hPtr)((void *) (((&itPtr->httpRequests)->keyType == (1) || (&itPtr->httpRequests)->keyType == (-1)) ? (hPtr)-> key.oneWordValue : (hPtr)->key.string)); |
| 1443 | |
| 1444 | Ns_Log(Warning, "HttpCleanup: cancel task:%s", taskName); |
| 1445 | |
| 1446 | HttpCancel(httpPtr); |
| 1447 | |
| 1448 | /* |
| 1449 | * Normally, channels should be re-integrated |
| 1450 | * into the running interp and [close]'d from |
| 1451 | * there. But our current cleanup semantics |
| 1452 | * does not allow that, so we simply and dirty |
| 1453 | * close the channels here. At this point they |
| 1454 | * should be not part of any thread (must have |
| 1455 | * been Tcl_Cut'ed) nor interp (must have been |
| 1456 | * Tcl_Unregister'ed). Failure to do so may |
| 1457 | * wreak havoc with our memory. |
| 1458 | * As with the current design, the channel must |
| 1459 | * have a refcount of 1 at this place, since we |
| 1460 | * reserved it in the HttpCutChannel() call. |
| 1461 | * Now we must do the reverse here, but do the |
| 1462 | * unregister with NULL interp just to reduce |
| 1463 | * the refcount. This should also implicitly |
| 1464 | * close the channel. If not, there is a leak. |
| 1465 | */ |
| 1466 | if (httpPtr->bodyChan != NULL((void*)0)) { |
| 1467 | Tcl_SpliceChannel(httpPtr->bodyChan); |
| 1468 | Tcl_UnregisterChannel((Tcl_Interp *)NULL((void*)0), httpPtr->bodyChan); |
| 1469 | httpPtr->bodyChan = NULL((void*)0); |
| 1470 | } |
| 1471 | if (httpPtr->spoolChan != NULL((void*)0)) { |
| 1472 | Tcl_SpliceChannel(httpPtr->spoolChan); |
| 1473 | Tcl_UnregisterChannel((Tcl_Interp *)NULL((void*)0), httpPtr->spoolChan); |
| 1474 | httpPtr->spoolChan = NULL((void*)0); |
| 1475 | } |
| 1476 | |
| 1477 | HttpClose(httpPtr); |
| 1478 | Tcl_DeleteHashEntry(hPtr); |
| 1479 | } |
| 1480 | } |
| 1481 | |
| 1482 | return result; |
| 1483 | } |
| 1484 | |
| 1485 | |
| 1486 | /* |
| 1487 | *---------------------------------------------------------------------- |
| 1488 | * |
| 1489 | * HttpListObjCmd |
| 1490 | * |
| 1491 | * Implements "ns_http list". |
| 1492 | * |
| 1493 | * Results: |
| 1494 | * Standard Tcl result. |
| 1495 | * |
| 1496 | * Side effects: |
| 1497 | * None. |
| 1498 | * |
| 1499 | *---------------------------------------------------------------------- |
| 1500 | */ |
| 1501 | |
| 1502 | static int |
| 1503 | HttpListObjCmd( |
| 1504 | ClientData clientData, |
| 1505 | Tcl_Interp *interp, |
| 1506 | int objc, |
| 1507 | Tcl_Obj *const* objv |
| 1508 | ) { |
| 1509 | NsInterp *itPtr = clientData; |
| 1510 | char *idString = NULL((void*)0); |
| 1511 | int result = TCL_OK0; |
| 1512 | Tcl_Obj *resultObj; |
| 1513 | Tcl_HashEntry *hPtr; |
| 1514 | Tcl_HashSearch search; |
| 1515 | |
| 1516 | /* |
| 1517 | * Syntax: ns_http list ?id? |
| 1518 | */ |
| 1519 | if (objc == 3) { |
| 1520 | idString = Tcl_GetString(objv[2]); |
| 1521 | } |
| 1522 | |
| 1523 | resultObj = Tcl_NewListObj(0, NULL((void*)0)); |
| 1524 | |
| 1525 | for (hPtr = Tcl_FirstHashEntry(&itPtr->httpRequests, &search); |
| 1526 | hPtr != NULL((void*)0); |
| 1527 | hPtr = Tcl_NextHashEntry(&search) ) { |
| 1528 | char *taskString = Tcl_GetHashKey(&itPtr->httpRequests, hPtr)((void *) (((&itPtr->httpRequests)->keyType == (1) || (&itPtr->httpRequests)->keyType == (-1)) ? (hPtr)-> key.oneWordValue : (hPtr)->key.string)); |
| 1529 | |
| 1530 | if (idString == NULL((void*)0) || STREQ(taskString, idString)(((*(taskString)) == (*(idString))) && (strcmp((taskString ),(idString)) == 0))) { |
| 1531 | const char *taskState; |
| 1532 | NsHttpTask *httpPtr = (NsHttpTask *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 1533 | |
| 1534 | assert(httpPtr != NULL)((void) (0)); |
| 1535 | |
| 1536 | if (Ns_TaskCompleted(httpPtr->task) == NS_TRUE1) { |
| 1537 | taskState = "done"; |
| 1538 | } else if (httpPtr->error != NULL((void*)0)) { |
| 1539 | taskState = "error"; |
| 1540 | } else { |
| 1541 | taskState = "running"; |
| 1542 | } |
| 1543 | |
| 1544 | Tcl_ListObjAppendElement |
| 1545 | (interp, resultObj, Tcl_NewStringObj(taskString, -1)); |
| 1546 | |
| 1547 | Tcl_ListObjAppendElement |
| 1548 | (interp, resultObj, Tcl_NewStringObj(httpPtr->url, -1)); |
| 1549 | |
| 1550 | Tcl_ListObjAppendElement |
| 1551 | (interp, resultObj, Tcl_NewStringObj(taskState, -1)); |
| 1552 | } |
| 1553 | } |
| 1554 | |
| 1555 | Tcl_SetObjResult(interp, resultObj); |
| 1556 | |
| 1557 | return result; |
| 1558 | } |
| 1559 | |
| 1560 | |
| 1561 | /* |
| 1562 | *---------------------------------------------------------------------- |
| 1563 | * |
| 1564 | * HttpStatsObjCmd |
| 1565 | * |
| 1566 | * Implements "ns_http stats". |
| 1567 | * |
| 1568 | * Results: |
| 1569 | * Standard Tcl result. |
| 1570 | * |
| 1571 | * Side effects: |
| 1572 | * None. |
| 1573 | * |
| 1574 | *---------------------------------------------------------------------- |
| 1575 | */ |
| 1576 | |
| 1577 | static int |
| 1578 | HttpStatsObjCmd( |
| 1579 | ClientData clientData, |
| 1580 | Tcl_Interp *interp, |
| 1581 | int objc, |
| 1582 | Tcl_Obj *const* objv |
| 1583 | ) { |
| 1584 | NsInterp *itPtr = clientData; |
| 1585 | char *idString = NULL((void*)0); |
| 1586 | int result = TCL_OK0; |
| 1587 | Tcl_Obj *resultObj = NULL((void*)0); |
| 1588 | Tcl_HashEntry *hPtr; |
| 1589 | Tcl_HashSearch search; |
| 1590 | |
| 1591 | /* |
| 1592 | * Syntax: ns_http stats ?id? |
| 1593 | */ |
| 1594 | if (objc == 3) { |
| 1595 | idString = Tcl_GetString(objv[2]); |
| 1596 | } |
| 1597 | |
| 1598 | if (idString == NULL((void*)0)) { |
| 1599 | resultObj = Tcl_NewListObj(0, NULL((void*)0)); |
| 1600 | } |
| 1601 | |
| 1602 | for (hPtr = Tcl_FirstHashEntry(&itPtr->httpRequests, &search); |
| 1603 | hPtr != NULL((void*)0); |
| 1604 | hPtr = Tcl_NextHashEntry(&search)) { |
| 1605 | |
| 1606 | const char *taskString; |
| 1607 | |
| 1608 | taskString = Tcl_GetHashKey(&itPtr->httpRequests, hPtr)((void *) (((&itPtr->httpRequests)->keyType == (1) || (&itPtr->httpRequests)->keyType == (-1)) ? (hPtr)-> key.oneWordValue : (hPtr)->key.string)); |
| 1609 | |
| 1610 | if (idString == NULL((void*)0) || STREQ(taskString, idString)(((*(taskString)) == (*(idString))) && (strcmp((taskString ),(idString)) == 0))) { |
| 1611 | NsHttpTask *httpPtr; |
| 1612 | Tcl_Obj *entryObj; |
| 1613 | |
| 1614 | httpPtr = (NsHttpTask *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 1615 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 1616 | |
| 1617 | entryObj = Tcl_NewDictObj(); |
| 1618 | |
| 1619 | /* |
| 1620 | * Following are not being changed by the task thread |
| 1621 | * so we need no extra lock here. |
| 1622 | */ |
| 1623 | |
| 1624 | (void) Tcl_DictObjPut |
| 1625 | (interp, entryObj, Tcl_NewStringObj("task", 4), |
| 1626 | Tcl_NewStringObj(taskString, -1)); |
| 1627 | |
| 1628 | (void) Tcl_DictObjPut |
| 1629 | (interp, entryObj, Tcl_NewStringObj("url", 3), |
| 1630 | Tcl_NewStringObj(httpPtr->url, -1)); |
| 1631 | |
| 1632 | (void) Tcl_DictObjPut |
| 1633 | (interp, entryObj, Tcl_NewStringObj("requestlength", 13), |
| 1634 | Tcl_NewWideIntObj((Tcl_WideInt)httpPtr->requestLength)); |
| 1635 | |
| 1636 | /* |
| 1637 | * Following may be subject to change by the task thread |
| 1638 | * so we sync-up on the mutex. |
| 1639 | */ |
| 1640 | |
| 1641 | Ns_MutexLock(&httpPtr->lock); |
| 1642 | |
| 1643 | /* |
| 1644 | * This element is a misnomer, but we leave it for the |
| 1645 | * sake of backwards compatibility. Actually, this is |
| 1646 | * the value of the returned Content-Length header. |
| 1647 | */ |
| 1648 | (void) Tcl_DictObjPut |
| 1649 | (interp, entryObj, Tcl_NewStringObj("replylength", 11), |
| 1650 | Tcl_NewWideIntObj((Tcl_WideInt)httpPtr->replyLength)); |
| 1651 | |
| 1652 | /* |
| 1653 | * Counter of bytes of the request sent so far. |
| 1654 | * It includes all of the request (status line, headers, body). |
| 1655 | */ |
| 1656 | (void) Tcl_DictObjPut |
| 1657 | (interp, entryObj, Tcl_NewStringObj("sent", 4), |
| 1658 | Tcl_NewWideIntObj((Tcl_WideInt)httpPtr->sent)); |
| 1659 | |
| 1660 | /* |
| 1661 | * Counter of bytes of the reply received so far. |
| 1662 | * It includes all of the reply (status line, headers, body). |
| 1663 | */ |
| 1664 | (void) Tcl_DictObjPut |
| 1665 | (interp, entryObj, Tcl_NewStringObj("received", 8), |
| 1666 | Tcl_NewWideIntObj((Tcl_WideInt)httpPtr->received)); |
| 1667 | |
| 1668 | /* |
| 1669 | * Counter of the request body sent so far. |
| 1670 | */ |
| 1671 | (void) Tcl_DictObjPut |
| 1672 | (interp, entryObj, Tcl_NewStringObj("sendbodysize", 12), |
| 1673 | Tcl_NewWideIntObj((Tcl_WideInt)httpPtr->sendBodySize)); |
| 1674 | |
| 1675 | /* |
| 1676 | * Counter of processed (potentially deflated) |
| 1677 | * reply body received so far. |
| 1678 | */ |
| 1679 | (void) Tcl_DictObjPut |
| 1680 | (interp, entryObj, Tcl_NewStringObj("replybodysize", 13), |
| 1681 | Tcl_NewWideIntObj((Tcl_WideInt)httpPtr->replyBodySize)); |
| 1682 | |
| 1683 | /* |
| 1684 | * Counter of the non-processed (potentially compressed) |
| 1685 | * reply body received so far. |
| 1686 | * For compressed but not deflated reply content |
| 1687 | * the replybodysize and replysize will be equal. |
| 1688 | */ |
| 1689 | (void) Tcl_DictObjPut |
| 1690 | (interp, entryObj, Tcl_NewStringObj("replysize", 9), |
| 1691 | Tcl_NewWideIntObj((Tcl_WideInt)httpPtr->replySize)); |
| 1692 | |
| 1693 | Ns_MutexUnlock(&httpPtr->lock); |
| 1694 | |
| 1695 | if (resultObj == NULL((void*)0)) { |
| 1696 | Tcl_SetObjResult(interp, entryObj); |
| 1697 | } else { |
| 1698 | (void) Tcl_ListObjAppendElement(interp, resultObj, entryObj); |
| 1699 | } |
| 1700 | } |
| 1701 | } |
| 1702 | |
| 1703 | if (resultObj != NULL((void*)0)) { |
| 1704 | Tcl_SetObjResult(interp, resultObj); |
| 1705 | } |
| 1706 | |
| 1707 | return result; |
| 1708 | } |
| 1709 | |
| 1710 | |
| 1711 | /* |
| 1712 | *---------------------------------------------------------------------- |
| 1713 | * |
| 1714 | * HttpQueue -- |
| 1715 | * |
| 1716 | * Enqueues the HTTP task and optionally returns the taskID |
| 1717 | * in the interp result. This taskID can be used by other |
| 1718 | * commands to cancel or wait for the task to finish. |
| 1719 | * |
| 1720 | * The taskID is not returned if the "-doneCallback" option |
| 1721 | * is specified. In that case, the task is handled and |
| 1722 | * garbage collected by the thread executing the task. |
| 1723 | * |
| 1724 | * Results: |
| 1725 | * Standard Tcl result. |
| 1726 | * |
| 1727 | * Side effects: |
| 1728 | * May queue an HTTP request. |
| 1729 | * |
| 1730 | *---------------------------------------------------------------------- |
| 1731 | */ |
| 1732 | |
| 1733 | static int |
| 1734 | HttpQueue( |
| 1735 | NsInterp *itPtr, |
| 1736 | int objc, |
| 1737 | Tcl_Obj *const* objv, |
| 1738 | bool_Bool run |
| 1739 | ) { |
| 1740 | Tcl_Interp *interp; |
| 1741 | int result = TCL_OK0, decompress = 0, raw = 0, binary = 0; |
| 1742 | Tcl_WideInt spoolLimit = -1; |
| 1743 | int verifyCert = 0, keepHostHdr = 0; |
| 1744 | NsHttpTask *httpPtr = NULL((void*)0); |
| 1745 | char *cert = NULL((void*)0), |
| 1746 | *caFile = NULL((void*)0), |
| 1747 | *caPath = NULL((void*)0), |
| 1748 | *sniHostname = NULL((void*)0), |
| 1749 | *outputFileName = NULL((void*)0), |
| 1750 | *outputChanName = NULL((void*)0), |
| 1751 | *method = (char *)"GET", |
| 1752 | *url = NULL((void*)0), |
| 1753 | *doneCallback = NULL((void*)0), |
| 1754 | *bodyChanName = NULL((void*)0), |
| 1755 | *bodyFileName = NULL((void*)0); |
| 1756 | Ns_Set *requestHdrPtr = NULL((void*)0); |
| 1757 | Tcl_Obj *bodyObj = NULL((void*)0), *proxyObj = NULL((void*)0); |
| 1758 | Ns_Time *timeoutPtr = NULL((void*)0), *expirePtr = NULL((void*)0); |
| 1759 | Tcl_WideInt bodySize = 0; |
| 1760 | Tcl_Channel bodyChan = NULL((void*)0), spoolChan = NULL((void*)0); |
| 1761 | Ns_ObjvValueRange sizeRange = {0, LLONG_MAX9223372036854775807LL}; |
| 1762 | |
| 1763 | Ns_ObjvSpec opts[] = { |
| 1764 | {"-binary", Ns_ObjvBool, &binary, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 1765 | {"-body", Ns_ObjvObj, &bodyObj, NULL((void*)0)}, |
| 1766 | {"-body_chan", Ns_ObjvString, &bodyChanName, NULL((void*)0)}, |
| 1767 | {"-body_file", Ns_ObjvString, &bodyFileName, NULL((void*)0)}, |
| 1768 | {"-body_size", Ns_ObjvWideInt, &bodySize, &sizeRange}, |
| 1769 | {"-cafile", Ns_ObjvString, &caFile, NULL((void*)0)}, |
| 1770 | {"-capath", Ns_ObjvString, &caPath, NULL((void*)0)}, |
| 1771 | {"-cert", Ns_ObjvString, &cert, NULL((void*)0)}, |
| 1772 | {"-raw", Ns_ObjvBool, &raw, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 1773 | {"-decompress", Ns_ObjvBool, &decompress, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 1774 | {"-donecallback", Ns_ObjvString, &doneCallback, NULL((void*)0)}, |
| 1775 | {"-headers", Ns_ObjvSet, &requestHdrPtr, NULL((void*)0)}, |
| 1776 | {"-hostname", Ns_ObjvString, &sniHostname, NULL((void*)0)}, |
| 1777 | {"-keep_host_header", Ns_ObjvBool, &keepHostHdr, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 1778 | {"-method", Ns_ObjvString, &method, NULL((void*)0)}, |
| 1779 | {"-outputchan", Ns_ObjvString, &outputChanName, NULL((void*)0)}, |
| 1780 | {"-outputfile", Ns_ObjvString, &outputFileName, NULL((void*)0)}, |
| 1781 | {"-spoolsize", Ns_ObjvMemUnit, &spoolLimit, NULL((void*)0)}, |
| 1782 | {"-expire", Ns_ObjvTime, &expirePtr, NULL((void*)0)}, |
| 1783 | {"-timeout", Ns_ObjvTime, &timeoutPtr, NULL((void*)0)}, |
| 1784 | {"-verify", Ns_ObjvBool, &verifyCert, INT2PTR(NS_FALSE)((void *)(intptr_t)(0))}, |
| 1785 | {"-proxy", Ns_ObjvObj, &proxyObj, NULL((void*)0)}, |
| 1786 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1787 | }; |
| 1788 | Ns_ObjvSpec args[] = { |
| 1789 | {"url", Ns_ObjvString, &url, NULL((void*)0)}, |
| 1790 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1791 | }; |
| 1792 | |
| 1793 | NS_NONNULL_ASSERT(itPtr != NULL)((void) (0)); |
| 1794 | interp = itPtr->interp; |
| 1795 | |
| 1796 | if (Ns_ParseObjv(opts, args, interp, 2, objc, objv) != NS_OK) { |
| 1797 | result = TCL_ERROR1; |
| 1798 | } else if (run == NS_TRUE1 && doneCallback != NULL((void*)0)) { |
| 1799 | Ns_TclPrintfResult(interp, "option -doneCallback allowed only" |
| 1800 | " for [ns_http_queue]"); |
| 1801 | result = TCL_ERROR1; |
| 1802 | } else if (outputFileName != NULL((void*)0) && outputChanName != NULL((void*)0)) { |
| 1803 | Ns_TclPrintfResult(interp, "only one of -outputchan or -outputfile" |
| 1804 | " options are allowed"); |
| 1805 | result = TCL_ERROR1; |
| 1806 | } else if (((bodyFileName != NULL((void*)0)) + (bodyChanName != NULL((void*)0)) + (bodyObj != NULL((void*)0))) > 1) { |
| 1807 | Ns_TclPrintfResult(interp, "only one of -body, -body_chan or -body_file" |
| 1808 | " options are allowed"); |
| 1809 | result = TCL_ERROR1; |
| 1810 | } else if (unlikely(decompress != 0)(__builtin_expect((decompress != 0), 0))) { |
| 1811 | Ns_Log(Warning, "ignore obsolete flag -decompress"); |
| 1812 | } else if (raw != 1) { |
| 1813 | decompress = 1; |
| 1814 | } |
| 1815 | |
| 1816 | if (result == TCL_OK0 && bodyFileName != NULL((void*)0)) { |
| 1817 | struct stat bodyStat; |
| 1818 | |
| 1819 | if (Ns_Stat(bodyFileName, &bodyStat) == NS_TRUE1) { |
| 1820 | if (bodySize == 0) { |
| 1821 | bodySize = (Tcl_WideInt)bodyStat.st_size; |
| 1822 | } |
| 1823 | } else { |
| 1824 | Ns_TclPrintfResult(interp, "cannot stat: %s ", bodyFileName); |
| 1825 | result = TCL_ERROR1; |
| 1826 | } |
| 1827 | } |
| 1828 | |
| 1829 | if (result == TCL_OK0 && bodyChanName != NULL((void*)0)) { |
| 1830 | if (Ns_TclGetOpenChannel(interp, bodyChanName, /* write */ 0, |
| 1831 | /* check */ 1, &bodyChan) != TCL_OK0) { |
| 1832 | result = TCL_ERROR1; |
| 1833 | } else if (bodySize == 0) { |
| 1834 | bodySize = Tcl_Seek(bodyChan, 0, SEEK_END2); |
| 1835 | if (bodySize == -1) { |
| 1836 | Ns_TclPrintfResult(interp, "can't seek channel: %s", |
| 1837 | Tcl_ErrnoMsg(Tcl_GetErrno())); |
| 1838 | result = TCL_ERROR1; |
| 1839 | } |
| 1840 | } |
| 1841 | } |
| 1842 | |
| 1843 | if (result == TCL_OK0 && outputChanName != NULL((void*)0)) { |
| 1844 | if (Ns_TclGetOpenChannel(interp, outputChanName, /* write */ 1, |
| 1845 | /* check */ 1, &spoolChan) != TCL_OK0) { |
| 1846 | result = TCL_ERROR1; |
| 1847 | } |
| 1848 | } |
| 1849 | |
| 1850 | if (result == TCL_OK0) { |
| 1851 | result = HttpConnect(itPtr, |
| 1852 | method, |
| 1853 | url, |
| 1854 | proxyObj, |
| 1855 | requestHdrPtr, |
| 1856 | bodySize, |
| 1857 | bodyObj, |
| 1858 | bodyFileName, |
| 1859 | cert, |
| 1860 | caFile, |
| 1861 | caPath, |
| 1862 | sniHostname, |
| 1863 | (verifyCert == 1), |
| 1864 | (keepHostHdr == 1), |
| 1865 | timeoutPtr, |
| 1866 | expirePtr, |
| 1867 | &httpPtr); |
| 1868 | } |
| 1869 | |
| 1870 | if (result == TCL_OK0 && bodyChan != NULL((void*)0)) { |
| 1871 | if (HttpCutChannel(interp, bodyChan) != TCL_OK0) { |
| 1872 | result = TCL_ERROR1; |
| 1873 | } else { |
| 1874 | httpPtr->bodyChan = bodyChan; |
| 1875 | } |
| 1876 | } |
| 1877 | |
| 1878 | if (result == TCL_OK0 && spoolChan != NULL((void*)0)) { |
| 1879 | if (HttpCutChannel(interp, spoolChan) != TCL_OK0) { |
| 1880 | result = TCL_ERROR1; |
| 1881 | } else { |
| 1882 | httpPtr->spoolChan = spoolChan; |
| 1883 | } |
| 1884 | } |
| 1885 | |
| 1886 | if (result != TCL_OK0) { |
| 1887 | if (httpPtr != NULL((void*)0)) { |
| 1888 | HttpSpliceChannels(interp, httpPtr); |
| 1889 | HttpClose(httpPtr); |
| 1890 | } |
| 1891 | } else { |
| 1892 | |
| 1893 | /* |
| 1894 | * All is fine. Fill in the rest of the task options |
| 1895 | */ |
| 1896 | if (spoolLimit > -1) { |
| 1897 | httpPtr->spoolLimit = spoolLimit; |
| 1898 | } |
| 1899 | if (outputFileName != NULL((void*)0)) { |
| 1900 | httpPtr->spoolFileName = ns_strdup(outputFileName); |
| 1901 | } |
| 1902 | if (doneCallback != NULL((void*)0)) { |
| 1903 | httpPtr->doneCallback = ns_strdup(doneCallback); |
| 1904 | } |
| 1905 | if (likely(decompress != 0)(__builtin_expect((decompress != 0), 1)) && likely(raw == 0)(__builtin_expect((raw == 0), 1))) { |
| 1906 | httpPtr->flags |= NS_HTTP_FLAG_DECOMPRESS(1u<<0); |
| 1907 | } else { |
| 1908 | httpPtr->flags = (httpPtr->flags & ~NS_HTTP_FLAG_DECOMPRESS(1u<<0)); |
| 1909 | } |
| 1910 | if (binary != 0) { |
| 1911 | httpPtr->flags |= NS_HTTP_FLAG_BINARY(1u<<4); |
| 1912 | } |
| 1913 | httpPtr->servPtr = itPtr->servPtr; |
| 1914 | |
| 1915 | httpPtr->task = Ns_TaskTimedCreate(httpPtr->sock, HttpProc, httpPtr, expirePtr); |
| 1916 | |
| 1917 | if (run == NS_TRUE1) { |
| 1918 | |
| 1919 | /* |
| 1920 | * Run the task and collect the result in one go. |
| 1921 | * The task is executed in the current thread. |
| 1922 | */ |
| 1923 | Ns_TaskRun(httpPtr->task); |
| 1924 | result = HttpGetResult(interp, httpPtr); |
| 1925 | HttpSpliceChannels(interp, httpPtr); |
| 1926 | HttpClose(httpPtr); |
| 1927 | |
| 1928 | } else { |
| 1929 | static Ns_TaskQueue *taskQueue = NULL((void*)0); /* MT: static variable! */ |
| 1930 | |
| 1931 | /* |
| 1932 | * Enqueue the task, optionally returning the taskID |
| 1933 | */ |
| 1934 | |
| 1935 | if (taskQueue == NULL((void*)0)) { |
| 1936 | Ns_MasterLock(); |
| 1937 | if (taskQueue == NULL((void*)0)) { |
| 1938 | taskQueue = Ns_CreateTaskQueue("tclhttp"); |
| 1939 | } |
| 1940 | Ns_MasterUnlock(); |
| 1941 | } |
| 1942 | |
| 1943 | if (Ns_TaskEnqueue(httpPtr->task, taskQueue) != NS_OK) { |
| 1944 | HttpSpliceChannels(interp, httpPtr); |
| 1945 | HttpClose(httpPtr); |
| 1946 | Ns_TclPrintfResult(interp, "could not queue HTTP task"); |
| 1947 | result = TCL_ERROR1; |
| 1948 | |
| 1949 | } else if (doneCallback != NULL((void*)0)) { |
| 1950 | |
| 1951 | /* |
| 1952 | * There is nothing to wait on when the doneCallback |
| 1953 | * was declared, since the callback garbage-collects |
| 1954 | * the task. Hence we do not create the taskID. |
| 1955 | */ |
| 1956 | Ns_Log(Ns_LogTaskDebug, "HttpQueue: no taskID returned"); |
| 1957 | |
| 1958 | } else { |
| 1959 | Tcl_HashEntry *hPtr = NULL((void*)0); |
| 1960 | uint32_t ii; |
| 1961 | int len; |
| 1962 | char buf[TCL_INTEGER_SPACE24 + 4]; |
| 1963 | |
| 1964 | /* |
| 1965 | * Create taskID to be used for [ns_http_wait] et al. |
| 1966 | */ |
| 1967 | memcpy(buf, "http", 4u); |
| 1968 | for (ii = (uint32_t)itPtr->httpRequests.numEntries; ; ii++) { |
| 1969 | int new = 0; |
| 1970 | |
| 1971 | len = ns_uint32toa(&buf[4], ii); |
| 1972 | hPtr = Tcl_CreateHashEntry(&itPtr->httpRequests, buf, &new)(*((&itPtr->httpRequests)->createProc))(&itPtr-> httpRequests, (const char *)(buf), &new); |
| 1973 | if (new != 0) { |
| 1974 | break; |
| 1975 | } |
| 1976 | } |
| 1977 | assert(hPtr != NULL)((void) (0)); |
| 1978 | Tcl_SetHashValue(hPtr, (ClientData)httpPtr)((hPtr)->clientData = (ClientData) ((ClientData)httpPtr)); |
| 1979 | Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, len+4)); |
| 1980 | } |
| 1981 | } |
| 1982 | } |
| 1983 | |
| 1984 | return result; |
| 1985 | } |
| 1986 | |
| 1987 | static void |
| 1988 | HttpClientLogWrite( |
| 1989 | const NsHttpTask *httpPtr, |
| 1990 | const char *causeString |
| 1991 | ) { |
| 1992 | Ns_Time diff; |
| 1993 | NsServer *servPtr; |
| 1994 | |
| 1995 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 1996 | NS_NONNULL_ASSERT(causeString != NULL)((void) (0)); |
| 1997 | |
| 1998 | /*fprintf(stderr, "================ HttpClientLog %d fd %d %s etime %ld cause %s\n", |
| 1999 | httpPtr->servPtr->httpclient.logging, |
| 2000 | httpPtr->servPtr->httpclient.fd, |
| 2001 | httpPtr->servPtr->httpclient.logFileName, |
| 2002 | (long)(httpPtr->etime.sec), |
| 2003 | causeString |
| 2004 | );*/ |
| 2005 | |
| 2006 | Ns_DiffTime(&httpPtr->etime, &httpPtr->stime, &diff); |
| 2007 | |
| 2008 | if (likely(httpPtr->servPtr != NULL)(__builtin_expect((httpPtr->servPtr != ((void*)0)), 1))) { |
| 2009 | servPtr = httpPtr->servPtr; |
| 2010 | } else { |
| 2011 | /* |
| 2012 | * In case, there is no server provided in httpPtr (e.g. the itPtr had |
| 2013 | * no servPtr set), use the configuration of the default server. |
| 2014 | */ |
| 2015 | servPtr = NsGetServer(nsconf.defaultServer); |
| 2016 | if (servPtr == NULL((void*)0)) { |
| 2017 | Ns_Log(Error, "http client log: server could not be determined, logging attempt rejected"); |
| 2018 | return; |
| 2019 | } |
| 2020 | } |
| 2021 | |
| 2022 | if (servPtr->httpclient.logging |
| 2023 | && servPtr->httpclient.fd != NS_INVALID_FD(-1) |
| 2024 | ) { |
| 2025 | Tcl_DString logString; |
| 2026 | char buf[41]; /* Big enough for Ns_LogTime(). */ |
| 2027 | |
| 2028 | Tcl_DStringInit(&logString); |
| 2029 | Ns_DStringPrintf(&logString, "%s %s %d %s %s " NS_TIME_FMT"%" "l" "d" ".%06ld" |
| 2030 | " %" PRIdz"zd" " %" PRIdz"zd" " %s\n", |
| 2031 | Ns_LogTime(buf), |
| 2032 | Ns_ThreadGetName(), |
| 2033 | httpPtr->status == 0 ? 408 : httpPtr->status, |
| 2034 | httpPtr->method, |
| 2035 | httpPtr->url, |
| 2036 | (int64_t)diff.sec, diff.usec, |
| 2037 | httpPtr->sent, |
| 2038 | httpPtr->received, |
| 2039 | causeString |
| 2040 | ); |
| 2041 | |
| 2042 | Ns_MutexLock(&servPtr->httpclient.lock); |
| 2043 | (void)NsAsyncWrite(servPtr->httpclient.fd, |
| 2044 | logString.string, (size_t)logString.length); |
| 2045 | Ns_MutexUnlock(&servPtr->httpclient.lock); |
| 2046 | |
| 2047 | Tcl_DStringFree(&logString); |
| 2048 | } |
| 2049 | } |
| 2050 | |
| 2051 | |
| 2052 | /* |
| 2053 | *---------------------------------------------------------------------- |
| 2054 | * |
| 2055 | * HttpGetResult -- |
| 2056 | * |
| 2057 | * Get the result of the Task and set it in the interp result. |
| 2058 | * |
| 2059 | * Results: |
| 2060 | * Standard Tcl result. |
| 2061 | * |
| 2062 | * Side effects: |
| 2063 | * None. |
| 2064 | * |
| 2065 | *---------------------------------------------------------------------- |
| 2066 | */ |
| 2067 | |
| 2068 | static int |
| 2069 | HttpGetResult( |
| 2070 | Tcl_Interp *interp, |
| 2071 | NsHttpTask *httpPtr |
| 2072 | ) { |
| 2073 | int result = TCL_OK0; |
| 2074 | Ns_Time diff; |
| 2075 | Tcl_Obj *statusObj = NULL((void*)0), |
| 2076 | *replyBodyObj = NULL((void*)0), |
| 2077 | *fileNameObj = NULL((void*)0), |
| 2078 | *resultObj = NULL((void*)0), |
| 2079 | *replyHeadersObj = NULL((void*)0), |
| 2080 | *elapsedTimeObj; |
| 2081 | |
| 2082 | NS_NONNULL_ASSERT(interp != NULL)((void) (0)); |
| 2083 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 2084 | |
| 2085 | //fprintf(stderr, "================ HttpGetResult\n"); |
| 2086 | |
| 2087 | /* |
| 2088 | * In some error conditions, the endtime is not set. make sure, take the |
| 2089 | * current time in these cases. |
| 2090 | */ |
| 2091 | if (httpPtr->etime.sec == 0) { |
| 2092 | Ns_GetTime(&httpPtr->etime); |
| 2093 | } |
| 2094 | |
| 2095 | Ns_DiffTime(&httpPtr->etime, &httpPtr->stime, &diff); |
| 2096 | elapsedTimeObj = Tcl_NewObj(); |
| 2097 | Ns_TclSetTimeObj(elapsedTimeObj, &diff); |
| 2098 | |
| 2099 | if (httpPtr->error != NULL((void*)0)) { |
| 2100 | if (httpPtr->finalSockState == NS_SOCK_TIMEOUT) { |
| 2101 | Tcl_SetErrorCode(interp, errorCodeTimeoutString, (char *)0L); |
| 2102 | Ns_Log(Ns_LogTimeoutDebug, "ns_http request '%s' runs into timeout", |
| 2103 | httpPtr->url); |
| 2104 | HttpClientLogWrite(httpPtr, "socktimeout"); |
| 2105 | } |
| 2106 | Tcl_SetObjResult(interp, Tcl_NewStringObj(httpPtr->error, -1)); |
| 2107 | result = TCL_ERROR1; |
| 2108 | goto err; |
| 2109 | } |
| 2110 | |
| 2111 | HttpClientLogWrite(httpPtr, "ok"); |
| 2112 | |
| 2113 | if (httpPtr->recvSpoolMode == NS_FALSE0) { |
| 2114 | #if defined(TCLHTTP_USE_EXTERNALTOUTF1) |
| 2115 | Tcl_Encoding encoding = NULL((void*)0); |
| 2116 | #endif |
| 2117 | bool_Bool binary = NS_FALSE0; |
| 2118 | int cSize; |
| 2119 | char *cData; |
| 2120 | |
| 2121 | /* |
| 2122 | * Determine type (binary/text) of the received data |
| 2123 | * and decide what kind of object we should create |
| 2124 | * to return the content to the Tcl. |
| 2125 | * We have a choice between binary and string objects. |
| 2126 | * Unfortunately, this is mostly whole lotta guess-work... |
| 2127 | */ |
| 2128 | if (unlikely((httpPtr->flags & NS_HTTP_FLAG_GZIP_ENCODING) != 0u)(__builtin_expect(((httpPtr->flags & (1u<<1)) != 0u), 0))) { |
| 2129 | if (unlikely((httpPtr->flags & NS_HTTP_FLAG_DECOMPRESS) == 0u)(__builtin_expect(((httpPtr->flags & (1u<<0)) == 0u), 0))) { |
| 2130 | |
| 2131 | /* |
| 2132 | * Gzipped but not inflated content |
| 2133 | * is automatically of a binary-type. |
| 2134 | * This is pretty straight-forward. |
| 2135 | */ |
| 2136 | binary = NS_TRUE1; |
| 2137 | } |
| 2138 | } |
| 2139 | if ((httpPtr->flags & NS_HTTP_FLAG_BINARY(1u<<4)) != 0u) { |
| 2140 | binary = NS_TRUE1; |
| 2141 | } |
| 2142 | if (binary == NS_FALSE0) { |
| 2143 | const char *cType; |
| 2144 | |
| 2145 | cType = Ns_SetIGet(httpPtr->replyHeaders, contentTypeHeader); |
| 2146 | if (cType != NULL((void*)0)) { |
| 2147 | |
| 2148 | /* |
| 2149 | * "binary" actually means: just to take the data as it is, |
| 2150 | * i.e. to perform no charset conversion. |
| 2151 | */ |
| 2152 | binary = Ns_IsBinaryMimeType(cType); |
| 2153 | /* |
| 2154 | * When the MIME type does not indicate binary treatment, a |
| 2155 | * charset encoding is required. (e.g. "text/plain; |
| 2156 | * charset=iso-8859-2") |
| 2157 | */ |
| 2158 | #if defined(TCLHTTP_USE_EXTERNALTOUTF1) |
| 2159 | if (binary == NS_FALSE0) { |
| 2160 | encoding = Ns_GetTypeEncoding(cType); |
| 2161 | if (encoding == NULL((void*)0)) { |
| 2162 | encoding = NS_utf8Encoding; |
| 2163 | } |
| 2164 | } |
| 2165 | #endif |
| 2166 | } |
| 2167 | } |
| 2168 | |
| 2169 | cData = httpPtr->ds.string + httpPtr->replyHeaderSize; |
| 2170 | cSize = (int)httpPtr->replyBodySize; |
| 2171 | |
| 2172 | if (binary == NS_TRUE1) { |
| 2173 | replyBodyObj = Tcl_NewByteArrayObj((unsigned char *)cData, cSize); |
| 2174 | } else { |
| 2175 | #if defined(TCLHTTP_USE_EXTERNALTOUTF1) |
| 2176 | Tcl_DString ds; |
| 2177 | Tcl_DStringInit(&ds); |
| 2178 | Tcl_ExternalToUtfDString(encoding, cData, cSize, &ds); |
| 2179 | replyBodyObj = Tcl_NewStringObj(Tcl_DStringValue(&ds)((&ds)->string), -1); |
| 2180 | Tcl_DStringFree(&ds); |
| 2181 | #else |
| 2182 | replyBodyObj = Tcl_NewStringObj(cData, cSize); |
| 2183 | #endif |
| 2184 | } |
| 2185 | } |
| 2186 | |
| 2187 | statusObj = Tcl_NewIntObj(httpPtr->status); |
| 2188 | |
| 2189 | if (httpPtr->spoolFd != NS_INVALID_FD(-1)) { |
| 2190 | fileNameObj = Tcl_NewStringObj(httpPtr->spoolFileName, -1); |
| 2191 | } |
| 2192 | |
| 2193 | /* |
| 2194 | * Add reply headers set into the interp |
| 2195 | */ |
| 2196 | result = Ns_TclEnterSet(interp, httpPtr->replyHeaders, NS_TCL_SET_DYNAMIC); |
| 2197 | if (result != TCL_OK0) { |
| 2198 | goto err; |
| 2199 | } |
| 2200 | |
| 2201 | httpPtr->replyHeaders = NULL((void*)0); /* Prevents Ns_SetFree() in HttpClose() */ |
| 2202 | replyHeadersObj = Tcl_GetObjResult(interp); |
| 2203 | Tcl_IncrRefCount(replyHeadersObj)++(replyHeadersObj)->refCount; |
| 2204 | |
| 2205 | |
| 2206 | /* |
| 2207 | * Assemble the resulting dictionary |
| 2208 | */ |
| 2209 | resultObj = Tcl_NewDictObj(); |
| 2210 | |
| 2211 | Tcl_DictObjPut(interp, resultObj, Tcl_NewStringObj("status", 6), |
| 2212 | statusObj); |
| 2213 | |
| 2214 | Tcl_DictObjPut(interp, resultObj, Tcl_NewStringObj("time", 4), |
| 2215 | elapsedTimeObj); |
| 2216 | |
| 2217 | Tcl_DictObjPut(interp, resultObj, Tcl_NewStringObj("headers", 7), |
| 2218 | replyHeadersObj); |
| 2219 | |
| 2220 | if (fileNameObj != NULL((void*)0)) { |
| 2221 | Tcl_DictObjPut(interp, resultObj, Tcl_NewStringObj("file", 4), |
| 2222 | fileNameObj); |
| 2223 | } |
| 2224 | if (replyBodyObj != NULL((void*)0)) { |
| 2225 | Tcl_DictObjPut(interp, resultObj, Tcl_NewStringObj("body", 4), |
| 2226 | replyBodyObj); |
| 2227 | } |
| 2228 | if (httpPtr->infoObj != NULL((void*)0)) { |
| 2229 | Tcl_DictObjPut(interp, resultObj, Tcl_NewStringObj("https", 5), |
| 2230 | httpPtr->infoObj); |
| 2231 | } |
| 2232 | if (httpPtr->bodyChan != NULL((void*)0)) { |
| 2233 | const char *chanName = Tcl_GetChannelName(httpPtr->bodyChan); |
| 2234 | |
| 2235 | Tcl_DictObjPut(interp, resultObj, Tcl_NewStringObj("body_chan", 9), |
| 2236 | Tcl_NewStringObj(chanName, -1)); |
| 2237 | } |
| 2238 | if (httpPtr->spoolChan != NULL((void*)0)) { |
| 2239 | const char *chanName = Tcl_GetChannelName(httpPtr->spoolChan); |
| 2240 | |
| 2241 | Tcl_DictObjPut(interp, resultObj, Tcl_NewStringObj("outputchan", 10), |
| 2242 | Tcl_NewStringObj(chanName, -1)); |
| 2243 | } |
| 2244 | Tcl_SetObjResult(interp, resultObj); |
| 2245 | |
| 2246 | Tcl_DecrRefCount(replyHeadersObj)do { Tcl_Obj *_objPtr = (replyHeadersObj); if (_objPtr->refCount -- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 2247 | |
| 2248 | err: |
| 2249 | if (result != TCL_OK0) { |
| 2250 | if (statusObj != NULL((void*)0)) { |
| 2251 | Tcl_DecrRefCount(statusObj)do { Tcl_Obj *_objPtr = (statusObj); if (_objPtr->refCount -- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 2252 | } |
| 2253 | if (fileNameObj != NULL((void*)0)) { |
| 2254 | Tcl_DecrRefCount(fileNameObj)do { Tcl_Obj *_objPtr = (fileNameObj); if (_objPtr->refCount -- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 2255 | } |
| 2256 | if (elapsedTimeObj != NULL((void*)0)) { |
| 2257 | Tcl_DecrRefCount(elapsedTimeObj)do { Tcl_Obj *_objPtr = (elapsedTimeObj); if (_objPtr->refCount -- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 2258 | } |
| 2259 | if (replyBodyObj != NULL((void*)0)) { |
| 2260 | Tcl_DecrRefCount(replyBodyObj)do { Tcl_Obj *_objPtr = (replyBodyObj); if (_objPtr->refCount -- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 2261 | } |
| 2262 | } |
| 2263 | |
| 2264 | return result; |
| 2265 | } |
| 2266 | |
| 2267 | |
| 2268 | /* |
| 2269 | *---------------------------------------------------------------------- |
| 2270 | * |
| 2271 | * HttpCheckHeader -- |
| 2272 | * |
| 2273 | * Check whether we have full HTTP response incl. headers. |
| 2274 | * If yes, record the total size of the response |
| 2275 | * (including the lone CR/LF delimiter) in the NsHttpTask |
| 2276 | * structure, as to avoid subsequent checking. |
| 2277 | * Terminate the response string by eliminating the lone |
| 2278 | * CR/LF delimiter (put a NULL byte at the CR place). |
| 2279 | * This way it is easy to calculate size of the optional |
| 2280 | * body content following the response line/headers. |
| 2281 | * |
| 2282 | * Results: |
| 2283 | * None. |
| 2284 | * |
| 2285 | * Side effects: |
| 2286 | * Handles the case where server responds with invalid |
| 2287 | * lone LF delimiters. |
| 2288 | * |
| 2289 | *---------------------------------------------------------------------- |
| 2290 | */ |
| 2291 | |
| 2292 | static void |
| 2293 | HttpCheckHeader( |
| 2294 | NsHttpTask *httpPtr |
| 2295 | ) { |
| 2296 | char *eoh; |
| 2297 | |
| 2298 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 2299 | |
| 2300 | eoh = strstr(httpPtr->ds.string, "\r\n\r\n"); |
| 2301 | if (eoh != NULL((void*)0)) { |
| 2302 | httpPtr->replyHeaderSize = (int)(eoh - httpPtr->ds.string) + 4; |
| 2303 | *(eoh + 2) = '\0'; |
| 2304 | } else { |
| 2305 | eoh = strstr(httpPtr->ds.string, "\n\n"); |
| 2306 | if (eoh != NULL((void*)0)) { |
| 2307 | Ns_Log(Warning, "HttpCheckHeader: client reply contains" |
| 2308 | " LF instead of CR/LF trailer which should not happen"); |
| 2309 | httpPtr->replyHeaderSize = (int)(eoh - httpPtr->ds.string) + 2; |
| 2310 | *(eoh + 1) = '\0'; |
| 2311 | } |
| 2312 | } |
| 2313 | } |
| 2314 | |
| 2315 | |
| 2316 | /* |
| 2317 | *---------------------------------------------------------------------- |
| 2318 | * |
| 2319 | * HttpCheckSpool -- |
| 2320 | * |
| 2321 | * Determine, whether the received data should be left in |
| 2322 | * the memory or whether it should be spooled to a file |
| 2323 | * or channel, depending on the size of the returned content |
| 2324 | * and the configuration settings. |
| 2325 | * |
| 2326 | * Results: |
| 2327 | * Ns_ReturnCode. |
| 2328 | * |
| 2329 | * Side effects: |
| 2330 | * Handles the partial response content located in memory. |
| 2331 | * |
| 2332 | *---------------------------------------------------------------------- |
| 2333 | */ |
| 2334 | |
| 2335 | static Ns_ReturnCode |
| 2336 | HttpCheckSpool( |
| 2337 | NsHttpTask *httpPtr |
| 2338 | ) { |
| 2339 | Ns_ReturnCode result = NS_OK; |
| 2340 | |
| 2341 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 2342 | |
| 2343 | /* |
| 2344 | * At this point, we already identified the end of the |
| 2345 | * response/headers but haven not yet parsed it because |
| 2346 | * we still do not know the value of the response status. |
| 2347 | * |
| 2348 | * The Ns_DString in httpPtr->ds contains, at this point: |
| 2349 | * |
| 2350 | * 1. HTTP response line (delimited by CR/LF) |
| 2351 | * 2. Response header(s) (each delimited by CR/LF) |
| 2352 | * 3. Terminating zero byte (was \r; see HttpCheckHeader()) |
| 2353 | * 4. Lone \n character (see HttpCheckHeader()) |
| 2354 | * 5. Content (or part of it) up to the end of the DString |
| 2355 | * |
| 2356 | * The size of 1.-4. is stored in httpPtr->replyHeaderSize. |
| 2357 | * The 3. delimits the partial content from the response |
| 2358 | * status lines/headers. Note that we parse the size of |
| 2359 | * the response line/headers by explicitly taking the |
| 2360 | * length of the DString value (size of 1.-3.) and not |
| 2361 | * using the DString length element. |
| 2362 | */ |
| 2363 | |
| 2364 | if (Ns_HttpMessageParse(httpPtr->ds.string, strlen(httpPtr->ds.string), |
| 2365 | httpPtr->replyHeaders, |
| 2366 | NULL((void*)0), |
| 2367 | NULL((void*)0), |
| 2368 | &httpPtr->status, |
| 2369 | NULL((void*)0)) != NS_OK || httpPtr->status == 0) { |
| 2370 | |
| 2371 | Ns_Log(Warning, "ns_http: parsing reply failed"); |
| 2372 | result = NS_ERROR; |
| 2373 | |
| 2374 | } else { |
| 2375 | const char *header; |
| 2376 | Tcl_WideInt replyLength = 0; |
| 2377 | |
| 2378 | /* |
| 2379 | * Check the returned Content-Length |
| 2380 | */ |
| 2381 | header = Ns_SetIGet(httpPtr->replyHeaders, contentLengthHeader); |
| 2382 | if (header != NULL((void*)0)) { |
| 2383 | (void)Ns_StrToWideInt(header, &replyLength); |
| 2384 | |
| 2385 | /* |
| 2386 | * Don't get fooled by some invalid value! |
| 2387 | */ |
| 2388 | if (replyLength < 0) { |
| 2389 | replyLength = 0; |
| 2390 | } |
| 2391 | |
| 2392 | Ns_Log(Ns_LogTaskDebug, "HttpCheckSpool: %s: %" TCL_LL_MODIFIER"l" "d", |
| 2393 | contentLengthHeader, replyLength); |
| 2394 | } else { |
| 2395 | |
| 2396 | /* |
| 2397 | * If none, see if we have Transfer-Encoding. |
| 2398 | * For now, we support "chunked" encoding only. |
| 2399 | */ |
| 2400 | header = Ns_SetIGet(httpPtr->replyHeaders, transferEncodingHeader); |
| 2401 | if (header != NULL((void*)0) && Ns_Match(header, "chunked") != NULL((void*)0)) { |
| 2402 | httpPtr->flags |= NS_HTTP_FLAG_CHUNKED(1u<<2); |
| 2403 | httpPtr->chunk->parsers = ChunkParsers; |
| 2404 | Ns_Log(Ns_LogTaskDebug, "HttpCheckSpool: %s: %s", |
| 2405 | transferEncodingHeader, header); |
| 2406 | Ns_SetIDeleteKey(httpPtr->replyHeaders, transferEncodingHeader); |
| 2407 | } |
| 2408 | } |
| 2409 | |
| 2410 | /* |
| 2411 | * See if we are handling compressed content. |
| 2412 | * Turn-on auto-decompress if requested. |
| 2413 | */ |
| 2414 | header = Ns_SetIGet(httpPtr->replyHeaders, contentEncodingHeader); |
| 2415 | if (header != NULL((void*)0) && Ns_Match(header, "gzip") != NULL((void*)0)) { |
| 2416 | httpPtr->flags |= NS_HTTP_FLAG_GZIP_ENCODING(1u<<1); |
| 2417 | if ((httpPtr->flags & NS_HTTP_FLAG_DECOMPRESS(1u<<0)) != 0u) { |
| 2418 | httpPtr->compress = ns_calloc(1u, sizeof(Ns_CompressStream)); |
| 2419 | (void) Ns_InflateInit(httpPtr->compress); |
| 2420 | Ns_Log(Ns_LogTaskDebug, "HttpCheckSpool: %s: %s", |
| 2421 | contentEncodingHeader, header); |
| 2422 | } |
| 2423 | } |
| 2424 | |
| 2425 | Ns_MutexLock(&httpPtr->lock); |
| 2426 | httpPtr->replyLength = (size_t)replyLength; |
| 2427 | Ns_MutexUnlock(&httpPtr->lock); |
| 2428 | |
| 2429 | /* |
| 2430 | * See if we need to spool the response content |
| 2431 | * to file/channel or leave it in the memory. |
| 2432 | */ |
| 2433 | if (httpPtr->spoolLimit > -1 |
| 2434 | && (replyLength == 0 || replyLength >= httpPtr->spoolLimit)) { |
| 2435 | |
| 2436 | if (httpPtr->spoolChan != NULL((void*)0)) { |
| 2437 | httpPtr->spoolFd = NS_INVALID_FD(-1); |
| 2438 | httpPtr->recvSpoolMode = NS_TRUE1; |
| 2439 | } else { |
| 2440 | int fd; |
| 2441 | |
| 2442 | if (httpPtr->spoolFileName != NULL((void*)0)) { |
| 2443 | int flags; |
| 2444 | |
| 2445 | flags = O_WRONLY01|O_CREAT0100|O_CLOEXEC02000000; |
| 2446 | fd = ns_openopen(httpPtr->spoolFileName, flags, 0644); |
| 2447 | } else { |
| 2448 | const char *tmpDir, *tmpFile = "http.XXXXXX"; |
| 2449 | size_t tmpLen; |
| 2450 | |
| 2451 | tmpDir = nsconf.tmpDir; |
| 2452 | tmpLen = strlen(tmpDir) + 13; |
| 2453 | |
| 2454 | /* |
| 2455 | * This lock is necessary for [ns_http wait] |
| 2456 | * backward compatibility. It can be removed |
| 2457 | * once we modify [ns_http wait] to disable |
| 2458 | * options processing. |
| 2459 | */ |
| 2460 | Ns_MutexLock(&httpPtr->lock); |
| 2461 | httpPtr->spoolFileName = ns_malloc(tmpLen); |
| 2462 | sprintf(httpPtr->spoolFileName, "%s/%s", tmpDir, tmpFile)__builtin___sprintf_chk (httpPtr->spoolFileName, 2 - 1, __builtin_object_size (httpPtr->spoolFileName, 2 > 1), "%s/%s", tmpDir, tmpFile ); |
| 2463 | Ns_MutexUnlock(&httpPtr->lock); |
| 2464 | |
| 2465 | fd = ns_mkstempmkstemp(httpPtr->spoolFileName); |
| 2466 | } |
| 2467 | if (fd != NS_INVALID_FD(-1)) { |
| 2468 | httpPtr->spoolFd = fd; |
| 2469 | httpPtr->recvSpoolMode = NS_TRUE1; |
| 2470 | } else { |
| 2471 | |
| 2472 | /* |
| 2473 | * FIXME: |
| 2474 | * |
| 2475 | * The ns_mkstemp/ns_open on Unix are clear but |
| 2476 | * what happens with handling error on Windows? |
| 2477 | */ |
| 2478 | Ns_Log(Error, "ns_http: can't open spool file: %s:", |
| 2479 | httpPtr->spoolFileName); |
| 2480 | result = NS_ERROR; |
| 2481 | } |
| 2482 | } |
| 2483 | } |
| 2484 | } |
| 2485 | |
| 2486 | if (result == NS_OK) { |
| 2487 | size_t cSize; |
| 2488 | |
| 2489 | cSize = (size_t)(httpPtr->ds.length - httpPtr->replyHeaderSize); |
| 2490 | if (cSize > 0) { |
| 2491 | char buf[CHUNK_SIZE16384], *cData; |
| 2492 | |
| 2493 | /* |
| 2494 | * There is (a part of the) content, past headers. |
| 2495 | * At this point, it is important to note that we may |
| 2496 | * be encountering chunked or compressed content... |
| 2497 | * Hence we copy this part into the private buffer, |
| 2498 | * erase it from the memory and let the HttpAppendContent |
| 2499 | * do the "right thing". |
| 2500 | */ |
| 2501 | cData = httpPtr->ds.string + httpPtr->replyHeaderSize; |
| 2502 | if (httpPtr->replyLength > 0 && cSize > httpPtr->replyLength) { |
| 2503 | cSize = httpPtr->replyLength; |
| 2504 | } |
| 2505 | memcpy(buf, cData, cSize); |
| 2506 | Ns_DStringSetLengthTcl_DStringSetLength(&httpPtr->ds, httpPtr->replyHeaderSize); |
| 2507 | if (HttpAppendContent(httpPtr, buf, cSize) != TCL_OK0) { |
| 2508 | result = NS_ERROR; |
| 2509 | } |
| 2510 | } |
| 2511 | } |
| 2512 | |
| 2513 | return result; |
| 2514 | } |
| 2515 | |
| 2516 | |
| 2517 | /* |
| 2518 | *---------------------------------------------------------------------- |
| 2519 | * |
| 2520 | * HttpGet -- |
| 2521 | * |
| 2522 | * Locate Http struct for a given taskID. |
| 2523 | * |
| 2524 | * Results: |
| 2525 | * NS_TRUE on success, NS_FALSE otherwise. |
| 2526 | * |
| 2527 | * Side effects: |
| 2528 | * Will update given httpPtrPtr with the pointer to NsHttpTask |
| 2529 | * |
| 2530 | *---------------------------------------------------------------------- |
| 2531 | */ |
| 2532 | |
| 2533 | static bool_Bool |
| 2534 | HttpGet( |
| 2535 | NsInterp *itPtr, |
| 2536 | const char *taskID, |
| 2537 | NsHttpTask **httpPtrPtr, |
| 2538 | bool_Bool remove |
| 2539 | ) { |
| 2540 | Tcl_HashEntry *hPtr; |
| 2541 | bool_Bool success; |
| 2542 | |
| 2543 | NS_NONNULL_ASSERT(itPtr != NULL)((void) (0)); |
| 2544 | NS_NONNULL_ASSERT(taskID != NULL)((void) (0)); |
| 2545 | NS_NONNULL_ASSERT(httpPtrPtr != NULL)((void) (0)); |
| 2546 | |
| 2547 | hPtr = Tcl_FindHashEntry(&itPtr->httpRequests, taskID)(*((&itPtr->httpRequests)->findProc))(&itPtr-> httpRequests, (const char *)(taskID)); |
| 2548 | if (hPtr == NULL((void*)0)) { |
| 2549 | Ns_TclPrintfResult(itPtr->interp, "no such request: %s", taskID); |
| 2550 | success = NS_FALSE0; |
| 2551 | } else { |
| 2552 | *httpPtrPtr = (NsHttpTask *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 2553 | if (remove) { |
| 2554 | Tcl_DeleteHashEntry(hPtr); |
| 2555 | } |
| 2556 | success = NS_TRUE1; |
| 2557 | } |
| 2558 | |
| 2559 | return success; |
| 2560 | } |
| 2561 | |
| 2562 | |
| 2563 | /* |
| 2564 | *---------------------------------------------------------------------- |
| 2565 | * |
| 2566 | * HttpWaitForSocketEvent -- |
| 2567 | * |
| 2568 | * Wait until the specified event on socket. |
| 2569 | * |
| 2570 | * Results: |
| 2571 | * Ns_ReturnCode |
| 2572 | * |
| 2573 | * Side effects: |
| 2574 | * None |
| 2575 | * |
| 2576 | *---------------------------------------------------------------------- |
| 2577 | */ |
| 2578 | |
| 2579 | static Ns_ReturnCode |
| 2580 | HttpWaitForSocketEvent( |
| 2581 | NS_SOCKETint sock, |
| 2582 | short events, |
| 2583 | Ns_Time *timeoutPtr |
| 2584 | ) { |
| 2585 | Ns_ReturnCode result; |
| 2586 | struct pollfd pollfd; |
| 2587 | int retval; |
| 2588 | long ms; |
| 2589 | |
| 2590 | pollfd.fd = (int)sock; |
| 2591 | pollfd.events = events; |
| 2592 | |
| 2593 | if (timeoutPtr == NULL((void*)0)) { |
| 2594 | ms = -1; |
| 2595 | } else { |
| 2596 | ms = (long)Ns_TimeToMilliseconds(timeoutPtr); |
| 2597 | if (ms == 0) { |
| 2598 | ms = 1; |
| 2599 | } |
| 2600 | } |
| 2601 | |
| 2602 | do { |
| 2603 | retval = ns_poll(&pollfd, (NS_POLL_NFDS_TYPEnfds_t)1, ms); |
| 2604 | } while (retval == -1 && errno(*__errno_location ()) == NS_EINTR4); |
| 2605 | |
| 2606 | switch (retval) { |
| 2607 | case 0: |
| 2608 | result = NS_TIMEOUT; |
| 2609 | break; |
| 2610 | case 1: |
| 2611 | result = NS_OK; |
| 2612 | break; |
| 2613 | default: |
| 2614 | result = NS_ERROR; |
| 2615 | break; |
| 2616 | } |
| 2617 | |
| 2618 | return result; |
| 2619 | } |
| 2620 | |
| 2621 | |
| 2622 | /* |
| 2623 | *---------------------------------------------------------------------- |
| 2624 | * |
| 2625 | * HttpConnect -- |
| 2626 | * |
| 2627 | * Open a connection to the given URL |
| 2628 | * and construct an NsHttpTask to handle the request. |
| 2629 | * |
| 2630 | * Results: |
| 2631 | * Tcl result code |
| 2632 | * |
| 2633 | * Side effects: |
| 2634 | * On TCL_OK, updates httpPtrPtr with allocated NsHttpTask. |
| 2635 | * |
| 2636 | *---------------------------------------------------------------------- |
| 2637 | */ |
| 2638 | |
| 2639 | static int |
| 2640 | HttpConnect( |
| 2641 | NsInterp *itPtr, |
| 2642 | const char *method, |
| 2643 | const char *url, |
| 2644 | Tcl_Obj *proxyObj, |
| 2645 | Ns_Set *hdrPtr, |
| 2646 | ssize_t bodySize, |
| 2647 | Tcl_Obj *bodyObj, |
| 2648 | const char *bodyFileName, |
| 2649 | const char *cert, |
| 2650 | const char *caFile, |
| 2651 | const char *caPath, |
| 2652 | const char *sniHostname, |
| 2653 | bool_Bool verifyCert, |
| 2654 | bool_Bool keepHostHdr, |
| 2655 | Ns_Time *timeoutPtr, |
| 2656 | Ns_Time *expirePtr, |
| 2657 | NsHttpTask **httpPtrPtr |
| 2658 | ) { |
| 2659 | Tcl_Interp *interp; |
| 2660 | NsHttpTask *httpPtr; |
| 2661 | Ns_DStringTcl_DString *dsPtr; |
| 2662 | bool_Bool haveUserAgent = NS_FALSE0, ownHeaders = NS_FALSE0; |
| 2663 | bool_Bool httpTunnel = NS_FALSE0, httpProxy = NS_FALSE0; |
| 2664 | unsigned short portNr, defPortNr, pPortNr = 0; |
| 2665 | char *url2, *pHost = NULL((void*)0); |
| 2666 | Ns_URL u; |
| 2667 | const char *errorMsg = NULL((void*)0); |
| 2668 | const char *contentType = NULL((void*)0); |
| 2669 | uint64_t requestCount = 0u; |
| 2670 | |
| 2671 | NS_NONNULL_ASSERT(itPtr != NULL)((void) (0)); |
| 2672 | NS_NONNULL_ASSERT(method != NULL)((void) (0)); |
| 2673 | NS_NONNULL_ASSERT(url != NULL)((void) (0)); |
| 2674 | NS_NONNULL_ASSERT(httpPtrPtr != NULL)((void) (0)); |
| 2675 | |
| 2676 | interp = itPtr->interp; |
| 2677 | |
| 2678 | /* |
| 2679 | * Setup the task structure. From this point on |
| 2680 | * if something goes wrong, we must HttpClose(). |
| 2681 | */ |
| 2682 | httpPtr = ns_calloc(1u, sizeof(NsHttpTask)); |
| 2683 | httpPtr->chunk = ns_calloc(1u, sizeof(NsHttpChunk)); |
| 2684 | httpPtr->bodyFileFd = NS_INVALID_FD(-1); |
| 2685 | httpPtr->spoolFd = NS_INVALID_FD(-1); |
| 2686 | httpPtr->sock = NS_INVALID_SOCKET(-1); |
| 2687 | httpPtr->spoolLimit = -1; |
| 2688 | httpPtr->url = ns_strdup(url); |
| 2689 | httpPtr->method = ns_strdup(method); |
| 2690 | httpPtr->replyHeaders = Ns_SetCreate(NS_SET_NAME_CLIENT_RESPONSE"clresp"); |
| 2691 | httpPtr->servPtr = itPtr->servPtr; |
| 2692 | |
| 2693 | if (timeoutPtr != NULL((void*)0)) { |
| 2694 | httpPtr->timeout = ns_calloc(1u, sizeof(Ns_Time)); |
| 2695 | *httpPtr->timeout = *timeoutPtr; |
| 2696 | } |
| 2697 | |
| 2698 | Ns_GetTime(&httpPtr->stime); |
| 2699 | |
| 2700 | dsPtr = &httpPtr->ds; |
| 2701 | Tcl_DStringInit(&httpPtr->ds); |
| 2702 | Tcl_DStringInit(&httpPtr->chunk->ds); |
| 2703 | |
| 2704 | Ns_MasterLock(); |
| 2705 | requestCount = ++httpClientRequestCount; |
| 2706 | Ns_MasterUnlock(); |
| 2707 | |
| 2708 | Ns_MutexInit(&httpPtr->lock); |
| 2709 | (void)ns_uint64toa(dsPtr->string, requestCount); |
| 2710 | Ns_MutexSetName2(&httpPtr->lock, "ns:httptask", dsPtr->string); |
| 2711 | |
| 2712 | /* |
| 2713 | * Parse given URL into pieces. Accept a fully qualified URL only. |
| 2714 | * Make a non-const copy of url, in which Ns_ParseUrl can replace |
| 2715 | * the item separating characters with '\0' characters. |
| 2716 | */ |
| 2717 | url2 = ns_strdup(url); |
| 2718 | if (Ns_ParseUrl(url2, NS_FALSE0, &u, &errorMsg) != NS_OK |
| 2719 | || u.protocol == NULL((void*)0) |
| 2720 | || u.host == NULL((void*)0) |
| 2721 | || u.path == NULL((void*)0) |
| 2722 | || u.tail == NULL((void*)0)) { |
| 2723 | |
| 2724 | Ns_TclPrintfResult(interp, "invalid URL \"%s\": %s", url, errorMsg); |
| 2725 | goto fail; |
| 2726 | } |
| 2727 | |
| 2728 | if (u.userinfo != NULL((void*)0)) { |
| 2729 | Ns_Log(Warning, "ns_http: userinfo '%s' ignored: %s", u.userinfo, url); |
| 2730 | } |
| 2731 | |
| 2732 | /* |
| 2733 | * If "-keep_host_header" option set |
| 2734 | * then "Host:" header must be given. |
| 2735 | */ |
| 2736 | if (keepHostHdr == NS_TRUE1) { |
| 2737 | if (hdrPtr == NULL((void*)0) || Ns_SetIFind(hdrPtr, hostHeader) == -1) { |
| 2738 | Ns_TclPrintfResult(interp, "-keep_host_header specified" |
| 2739 | " but no Host header given"); |
| 2740 | goto fail; |
| 2741 | } |
| 2742 | } |
| 2743 | |
| 2744 | /* |
| 2745 | * Check used protocol and protocol-specific parameters |
| 2746 | * and determine the default port (80 for HTTP, 443 for HTTPS) |
| 2747 | */ |
| 2748 | if (STREQ("http", u.protocol)(((*("http")) == (*(u.protocol))) && (strcmp(("http") ,(u.protocol)) == 0))) { |
| 2749 | if (cert != NULL((void*)0) |
| 2750 | || caFile != NULL((void*)0) |
| 2751 | || caPath != NULL((void*)0) |
| 2752 | || verifyCert == NS_TRUE1) { |
| 2753 | |
| 2754 | Ns_TclPrintfResult(interp, "HTTPS options allowed for HTTPS only"); |
| 2755 | goto fail; |
| 2756 | } |
| 2757 | defPortNr = 80u; |
| 2758 | } |
| 2759 | #ifdef HAVE_OPENSSL_EVP_H1 |
| 2760 | else if (STREQ("https", u.protocol)(((*("https")) == (*(u.protocol))) && (strcmp(("https" ),(u.protocol)) == 0))) { |
| 2761 | defPortNr = 443u; |
| 2762 | } |
| 2763 | #endif |
| 2764 | else { |
| 2765 | Ns_TclPrintfResult(interp, "invalid URL \"%s\"", url); |
| 2766 | goto fail; |
| 2767 | } |
| 2768 | |
| 2769 | /* |
| 2770 | * Connect to specified port or to the default port. |
| 2771 | */ |
| 2772 | if (u.port != NULL((void*)0)) { |
| 2773 | portNr = (unsigned short) strtol(u.port, NULL((void*)0), 10); |
| 2774 | } else { |
| 2775 | portNr = defPortNr; |
| 2776 | } |
| 2777 | |
| 2778 | /* |
| 2779 | * For request body optionally open the backing file. |
| 2780 | */ |
| 2781 | if (bodySize > 0 && bodyFileName != NULL((void*)0)) { |
| 2782 | httpPtr->bodyFileFd = ns_openopen(bodyFileName, O_RDONLY00|O_CLOEXEC02000000, 0); |
| 2783 | if (unlikely(httpPtr->bodyFileFd == NS_INVALID_FD)(__builtin_expect((httpPtr->bodyFileFd == (-1)), 0))) { |
| 2784 | Ns_TclPrintfResult(interp, "cannot open file %s", bodyFileName); |
| 2785 | goto fail; |
| 2786 | } |
| 2787 | } |
| 2788 | |
| 2789 | /* |
| 2790 | * If content decompression allowed and no encodings explicitly set |
| 2791 | * we tell remote what we would accept per-default. |
| 2792 | */ |
| 2793 | #ifdef HAVE_ZLIB_H1 |
| 2794 | if (likely((httpPtr->flags & NS_HTTP_FLAG_DECOMPRESS) != 0u)(__builtin_expect(((httpPtr->flags & (1u<<0)) != 0u), 1))) { |
| 2795 | if (hdrPtr == NULL((void*)0) || Ns_SetIFind(hdrPtr, acceptEncodingHeader) == -1) { |
| 2796 | const char *acceptEncodings = "gzip, deflate"; |
| 2797 | |
| 2798 | if (hdrPtr == NULL((void*)0)) { |
| 2799 | hdrPtr = Ns_SetCreate(NULL((void*)0)); |
| 2800 | ownHeaders = NS_TRUE1; |
| 2801 | } |
| 2802 | |
| 2803 | Ns_SetPutSz(hdrPtr, acceptEncodingHeader, acceptEncodingHeaderLength, |
| 2804 | acceptEncodings, 13); |
| 2805 | } |
| 2806 | } |
| 2807 | #endif |
| 2808 | |
| 2809 | /* |
| 2810 | * Check if we need to connect to the proxy server first. |
| 2811 | * If the passed dictionary contains "host" key, we expect |
| 2812 | * to find the "port" and (optionally) "tunnel" keys. |
| 2813 | * If host is found, we will proxy. |
| 2814 | * For https connections we will tunnel, otherwise we will |
| 2815 | * cache-proxy. We will tunnel always if optional "tunnel" |
| 2816 | * key is true. |
| 2817 | */ |
| 2818 | if (proxyObj != NULL((void*)0)) { |
| 2819 | Tcl_Obj *keyObj, *valObj; |
| 2820 | |
| 2821 | keyObj = Tcl_NewStringObj("host", 4); |
| 2822 | valObj = NULL((void*)0); |
| 2823 | if (Tcl_DictObjGet(interp, proxyObj, keyObj, &valObj) != TCL_OK0) { |
| 2824 | Tcl_DecrRefCount(keyObj)do { Tcl_Obj *_objPtr = (keyObj); if (_objPtr->refCount-- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 2825 | goto fail; /* proxyObj is not a dictionary? */ |
| 2826 | } |
| 2827 | Tcl_DecrRefCount(keyObj)do { Tcl_Obj *_objPtr = (keyObj); if (_objPtr->refCount-- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 2828 | pHost = (valObj != NULL((void*)0)) ? Tcl_GetString(valObj) : NULL((void*)0); |
| 2829 | if (pHost != NULL((void*)0)) { |
| 2830 | int portval = 0; |
| 2831 | |
| 2832 | keyObj = Tcl_NewStringObj("port", 4); |
| 2833 | valObj = NULL((void*)0); |
| 2834 | Tcl_DictObjGet(interp, proxyObj, keyObj, &valObj); |
| 2835 | Tcl_DecrRefCount(keyObj)do { Tcl_Obj *_objPtr = (keyObj); if (_objPtr->refCount-- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 2836 | if (valObj == NULL((void*)0)) { |
| 2837 | Ns_TclPrintfResult(interp, "missing proxy port"); |
| 2838 | goto fail; |
| 2839 | } |
| 2840 | if (Tcl_GetIntFromObj(interp, valObj, &portval) != TCL_OK0) { |
| 2841 | goto fail; |
| 2842 | } |
| 2843 | if (portval <= 0) { |
| 2844 | Ns_TclPrintfResult(interp, "invalid proxy port"); |
| 2845 | } |
| 2846 | pPortNr = (unsigned short)portval; |
| 2847 | if (defPortNr == 443u) { |
| 2848 | httpTunnel = NS_TRUE1; |
| 2849 | } else { |
| 2850 | keyObj = Tcl_NewStringObj("tunnel", 6); |
| 2851 | valObj = NULL((void*)0); |
| 2852 | Tcl_DictObjGet(interp, proxyObj, keyObj, &valObj); |
| 2853 | Tcl_DecrRefCount(keyObj)do { Tcl_Obj *_objPtr = (keyObj); if (_objPtr->refCount-- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 2854 | if (valObj == NULL((void*)0)) { |
| 2855 | httpTunnel = NS_FALSE0; |
| 2856 | } else { |
| 2857 | int tunnel; |
| 2858 | |
| 2859 | if (Tcl_GetBooleanFromObj(interp, valObj, &tunnel) != TCL_OK0) { |
| 2860 | goto fail; |
| 2861 | } |
| 2862 | httpTunnel = (tunnel == 1) ? NS_TRUE1 : NS_FALSE0; |
| 2863 | } |
| 2864 | } |
| 2865 | httpProxy = (defPortNr == 80u) && (httpTunnel == NS_FALSE0); |
| 2866 | } |
| 2867 | } |
| 2868 | |
| 2869 | /* |
| 2870 | * Now we are ready to attempt the connection. |
| 2871 | * If no timeout given, assume 30 seconds. |
| 2872 | */ |
| 2873 | |
| 2874 | { |
| 2875 | Ns_ReturnCode rc; |
| 2876 | Ns_Time defaultTimout = {30, 0}, *toPtr = NULL((void*)0); |
| 2877 | |
| 2878 | Ns_Log(Ns_LogTaskDebug, "HttpConnect: connecting to [%s]:%hu", u.host, portNr); |
| 2879 | |
| 2880 | /* |
| 2881 | * Open the socket to remote, assure it is writable |
| 2882 | */ |
| 2883 | if (timeoutPtr != NULL((void*)0) && expirePtr != NULL((void*)0)) { |
| 2884 | if (Ns_DiffTime(timeoutPtr, expirePtr, NULL((void*)0)) < 0) { |
| 2885 | toPtr = timeoutPtr; |
| 2886 | } else { |
| 2887 | toPtr = expirePtr; |
| 2888 | } |
| 2889 | } else if (timeoutPtr != NULL((void*)0)) { |
| 2890 | toPtr = timeoutPtr; |
| 2891 | } else if (expirePtr != NULL((void*)0)) { |
| 2892 | toPtr = expirePtr; |
| 2893 | } else { |
| 2894 | toPtr = &defaultTimout; |
| 2895 | } |
| 2896 | if (httpTunnel == NS_TRUE1) { |
| 2897 | httpPtr->sock = HttpTunnel(itPtr, pHost, pPortNr, u.host, portNr, toPtr); |
| 2898 | if (httpPtr->sock == NS_INVALID_SOCKET(-1)) { |
| 2899 | goto fail; |
| 2900 | } |
| 2901 | } else { |
| 2902 | char *rhost = u.host; |
| 2903 | unsigned short rport = portNr; |
| 2904 | |
| 2905 | if (httpProxy == NS_TRUE1) { |
| 2906 | rhost = pHost; |
| 2907 | rport = pPortNr; |
| 2908 | } |
| 2909 | httpPtr->sock = Ns_SockTimedConnect2(rhost, rport, NULL((void*)0), 0, toPtr, &rc); |
| 2910 | if (httpPtr->sock == NS_INVALID_SOCKET(-1)) { |
| 2911 | Ns_SockConnectError(interp, rhost, rport, rc); |
| 2912 | if (rc == NS_TIMEOUT) { |
| 2913 | HttpClientLogWrite(httpPtr, "connecttimeout"); |
| 2914 | } |
| 2915 | goto fail; |
| 2916 | } |
| 2917 | if (Ns_SockSetNonBlocking(httpPtr->sock) != NS_OK) { |
| 2918 | Ns_TclPrintfResult(interp, "can't set socket nonblocking mode"); |
| 2919 | goto fail; |
| 2920 | } |
| 2921 | rc = HttpWaitForSocketEvent(httpPtr->sock, POLLOUT0x004, toPtr); |
| 2922 | if (rc != NS_OK) { |
Duplicate code detected | |
| 2923 | if (rc == NS_TIMEOUT) { |
| 2924 | Ns_TclPrintfResult(interp, "timeout waiting for writable socket"); |
| 2925 | HttpClientLogWrite(httpPtr, "writetimeout"); |
| 2926 | Tcl_SetErrorCode(interp, errorCodeTimeoutString, (char *)0L); |
| 2927 | } else { |
| 2928 | Ns_TclPrintfResult(interp, "waiting for writable socket: %s", |
| 2929 | ns_sockstrerrorstrerror(ns_sockerrno(*__errno_location ()))); |
| 2930 | } |
| 2931 | goto fail; |
| 2932 | } |
| 2933 | } |
| 2934 | |
| 2935 | /* |
| 2936 | * Optionally setup an SSL connection |
| 2937 | */ |
| 2938 | if (defPortNr == 443u) { |
| 2939 | NS_TLS_SSL_CTXSSL_CTX *ctx = NULL((void*)0); |
| 2940 | int result; |
| 2941 | |
| 2942 | result = Ns_TLS_CtxClientCreate(interp, cert, caFile, caPath, |
| 2943 | verifyCert, &ctx); |
| 2944 | if (likely(result == TCL_OK)(__builtin_expect((result == 0), 1))) { |
| 2945 | NS_TLS_SSLSSL *ssl = NULL((void*)0); |
| 2946 | |
| 2947 | httpPtr->ctx = ctx; |
| 2948 | result = Ns_TLS_SSLConnect(interp, httpPtr->sock, ctx, |
| 2949 | sniHostname, &ssl); |
| 2950 | if (likely(result == TCL_OK)(__builtin_expect((result == 0), 1))) { |
| 2951 | httpPtr->ssl = ssl; |
| 2952 | #ifdef HAVE_OPENSSL_EVP_H1 |
| 2953 | HttpAddInfo(httpPtr, "sslversion", SSL_get_version(ssl)); |
| 2954 | HttpAddInfo(httpPtr, "cipher", SSL_get_cipher(ssl)SSL_CIPHER_get_name(SSL_get_current_cipher(ssl))); |
| 2955 | SSL_set_mode(ssl, SSL_MODE_ENABLE_PARTIAL_WRITE)SSL_ctrl((ssl),33,(0x00000001U),((void*)0)); |
| 2956 | #endif |
| 2957 | } |
| 2958 | } |
| 2959 | if (unlikely(result != TCL_OK)(__builtin_expect((result != 0), 0))) { |
| 2960 | goto fail; |
| 2961 | } |
| 2962 | } |
| 2963 | } |
| 2964 | |
| 2965 | /* |
| 2966 | * At this point we are connected. |
| 2967 | * Construct HTTP request line. |
| 2968 | */ |
| 2969 | Ns_DStringSetLengthTcl_DStringSetLength(dsPtr, 0); |
| 2970 | Ns_DStringAppend(dsPtr, method)Tcl_DStringAppend((dsPtr), (method), -1); |
| 2971 | Ns_StrToUpper(Ns_DStringValue(dsPtr)((dsPtr)->string)); |
| 2972 | if (httpProxy == NS_TRUE1) { |
| 2973 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, " ", 1); |
| 2974 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, url, -1); |
| 2975 | } else { |
| 2976 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, " /", 2); |
| 2977 | if (*u.path != '\0') { |
| 2978 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, u.path, -1); |
| 2979 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, "/", 1); |
| 2980 | } |
| 2981 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, u.tail, -1); |
| 2982 | if (u.query != NULL((void*)0)) { |
| 2983 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, "?", 1); |
| 2984 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, u.query, -1); |
| 2985 | } |
| 2986 | if (u.fragment != NULL((void*)0)) { |
| 2987 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, "#", 1); |
| 2988 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, u.fragment, -1); |
| 2989 | } |
| 2990 | } |
| 2991 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, " HTTP/1.1\r\n", 11); |
| 2992 | |
| 2993 | Ns_Log(Ns_LogTaskDebug, "HttpConnect: %s request: %s", u.protocol, dsPtr->string); |
| 2994 | |
| 2995 | /* |
| 2996 | * Add provided headers, remove headers we are providing explicitly, |
| 2997 | * check User-Agent header existence. |
| 2998 | */ |
| 2999 | if (ownHeaders == NS_FALSE0 && hdrPtr != NULL((void*)0)) { |
| 3000 | size_t ii; |
| 3001 | |
| 3002 | if (keepHostHdr == NS_FALSE0) { |
| 3003 | Ns_SetIDeleteKey(hdrPtr, hostHeader); |
| 3004 | } |
| 3005 | Ns_SetIDeleteKey(hdrPtr, contentLengthHeader); |
| 3006 | Ns_SetIDeleteKey(hdrPtr, connectionHeader); |
| 3007 | for (ii = 0u; ii < Ns_SetSize(hdrPtr)((hdrPtr)->size); ii++) { |
| 3008 | const char *key, *val; |
| 3009 | |
| 3010 | key = Ns_SetKey(hdrPtr, ii)((hdrPtr)->fields[(ii)].name); |
| 3011 | val = Ns_SetValue(hdrPtr, ii)((hdrPtr)->fields[(ii)].value); |
| 3012 | Ns_DStringPrintf(dsPtr, "%s: %s\r\n", key, val); |
| 3013 | |
| 3014 | if (haveUserAgent == NS_FALSE0) { |
| 3015 | haveUserAgent = (strcasecmp(key, userAgentHeader) == 0); |
| 3016 | } |
| 3017 | } |
| 3018 | } |
| 3019 | |
| 3020 | /* |
| 3021 | * If User-Agent header not supplied, add our own |
| 3022 | */ |
| 3023 | if (haveUserAgent == NS_FALSE0) { |
| 3024 | Ns_DStringPrintf(dsPtr, "%s: %s/%s\r\n", userAgentHeader, |
| 3025 | Ns_InfoServerName(), Ns_InfoServerVersion()); |
| 3026 | } |
| 3027 | |
| 3028 | /* |
| 3029 | * Disable keep-alive connections |
| 3030 | * FIXME: why? |
| 3031 | */ |
| 3032 | Ns_DStringPrintf(dsPtr, "%s: close\r\n", connectionHeader); |
| 3033 | |
| 3034 | /* |
| 3035 | * Optionally, add our own Host header |
| 3036 | */ |
| 3037 | if (keepHostHdr == NS_FALSE0) { |
| 3038 | (void)Ns_DStringVarAppend(dsPtr, hostHeader, ": ", (char *)0L); |
| 3039 | (void)Ns_HttpLocationString(dsPtr, NULL((void*)0), u.host, portNr, defPortNr); |
| 3040 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, "\r\n", 2); |
| 3041 | } |
| 3042 | |
| 3043 | /* |
| 3044 | * Calculate Content-Length header, handle in-memory body |
| 3045 | */ |
| 3046 | if (bodyObj == NULL((void*)0) && bodySize == 0) { |
| 3047 | |
| 3048 | /* |
| 3049 | * No body provided, close request/headers part |
| 3050 | */ |
| 3051 | httpPtr->bodySize = 0u; |
| 3052 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, "\r\n", 2); |
| 3053 | httpPtr->requestHeaderSize = (size_t)dsPtr->length; |
| 3054 | |
| 3055 | } else { |
| 3056 | |
| 3057 | if (ownHeaders == NS_FALSE0 && hdrPtr != NULL((void*)0)) { |
| 3058 | contentType = Ns_SetIGet(hdrPtr, contentTypeHeader); |
| 3059 | } |
| 3060 | |
| 3061 | if (contentType == NULL((void*)0)) { |
| 3062 | |
| 3063 | /* |
| 3064 | * Previously, we required a content-type when a body is provided, |
| 3065 | * which was too strong due to the following paragraph in RFC 7231: |
| 3066 | * |
| 3067 | * A sender that generates a message containing a payload body |
| 3068 | * SHOULD generate a Content-Type header field in that message |
| 3069 | * unless the intended media type of the enclosed |
| 3070 | * representation is unknown to the sender. If a Content-Type |
| 3071 | * header field is not present, the recipient MAY either assume |
| 3072 | * a media type of "application/octet-stream" ([RFC2046], |
| 3073 | * Section 4.5.1) or examine the data to determine its type. |
| 3074 | */ |
| 3075 | |
| 3076 | if (bodyFileName != NULL((void*)0)) { |
| 3077 | contentType = Ns_GetMimeType(bodyFileName); |
| 3078 | } else { |
| 3079 | /* |
| 3080 | * We could call Ns_GetMimeType(tail), but this does not seem |
| 3081 | * to be the intention of RFC2046. |
| 3082 | */ |
| 3083 | contentType = "application/octet-stream"; |
| 3084 | } |
| 3085 | } |
| 3086 | |
| 3087 | if (bodyObj != NULL((void*)0)) { |
| 3088 | int bodyLen = 0; |
| 3089 | char *bodyStr = NULL((void*)0); |
| 3090 | bool_Bool binary; |
| 3091 | |
| 3092 | /* |
| 3093 | * Append in-memory body to the requests string |
| 3094 | * and calculate correct Content-Length header. |
| 3095 | * We do not anticipate in-memory body to be |
| 3096 | * 2GB+ hence the signed int type suffices. |
| 3097 | */ |
| 3098 | binary = NsTclObjIsByteArray(bodyObj); |
| 3099 | if (binary == NS_FALSE0) { |
| 3100 | if (contentType != NULL((void*)0)) { |
| 3101 | |
| 3102 | /* |
| 3103 | * Caveat Emptor: |
| 3104 | * This call may return true even for |
| 3105 | * completely regular text formats. |
| 3106 | */ |
| 3107 | binary = Ns_IsBinaryMimeType(contentType); |
| 3108 | } |
| 3109 | } |
| 3110 | if (binary == NS_TRUE1) { |
| 3111 | bodyStr = (char *)Tcl_GetByteArrayFromObj(bodyObj, &bodyLen); |
| 3112 | } else { |
| 3113 | bodyStr = Tcl_GetStringFromObj(bodyObj, &bodyLen); |
| 3114 | } |
| 3115 | |
| 3116 | httpPtr->bodySize = (size_t)bodyLen; |
| 3117 | Ns_DStringPrintf(dsPtr, "%s: %d\r\n\r\n", contentLengthHeader, |
| 3118 | bodyLen); |
| 3119 | |
| 3120 | httpPtr->requestHeaderSize = (size_t)dsPtr->length; |
| 3121 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, bodyStr, bodyLen); |
| 3122 | |
| 3123 | } else if (bodySize > 0) { |
| 3124 | |
| 3125 | /* |
| 3126 | * Body will be passed over file/channel and the caller |
| 3127 | * has already determined the correct content size. |
| 3128 | * Note: body size may be way over 2GB! |
| 3129 | */ |
| 3130 | httpPtr->bodySize = (size_t)bodySize; |
| 3131 | Ns_DStringPrintf(dsPtr, "%s: %" PRIdz"zd" "\r\n\r\n", |
| 3132 | contentLengthHeader, bodySize); |
| 3133 | httpPtr->requestHeaderSize = (size_t)dsPtr->length; |
| 3134 | } |
| 3135 | } |
| 3136 | |
| 3137 | httpPtr->requestLength = (size_t)dsPtr->length; |
| 3138 | httpPtr->next = dsPtr->string; |
| 3139 | |
| 3140 | *httpPtrPtr = httpPtr; |
| 3141 | ns_free((void *)url2); |
| 3142 | |
| 3143 | if (Ns_LogSeverityEnabled(Ns_LogRequestDebug)) { |
| 3144 | Tcl_DString d; |
| 3145 | |
| 3146 | Tcl_DStringInit(&d); |
| 3147 | Ns_Log(Ns_LogRequestDebug, "full request (len %d) <%s>", |
| 3148 | dsPtr->length, |
| 3149 | Ns_DStringAppendPrintable(&d, NS_TRUE1, dsPtr->string, |
| 3150 | (size_t)dsPtr->length)); |
| 3151 | Tcl_DStringFree(&d); |
| 3152 | } |
| 3153 | |
| 3154 | |
| 3155 | if (ownHeaders == NS_TRUE1) { |
| 3156 | Ns_SetFree(hdrPtr); |
| 3157 | } |
| 3158 | |
| 3159 | return TCL_OK0; |
| 3160 | |
| 3161 | fail: |
| 3162 | if (ownHeaders == NS_TRUE1) { |
| 3163 | Ns_SetFree(hdrPtr); |
| 3164 | } |
| 3165 | ns_free((void *)url2); |
| 3166 | HttpClose(httpPtr); |
| 3167 | |
| 3168 | return TCL_ERROR1; |
| 3169 | } |
| 3170 | |
| 3171 | |
| 3172 | /* |
| 3173 | *---------------------------------------------------------------------- |
| 3174 | * |
| 3175 | * HttpAppendRawBuffer -- |
| 3176 | * |
| 3177 | * Append data to a spool file, a Tcl channel or memory. |
| 3178 | * |
| 3179 | * Results: |
| 3180 | * Tcl result code. |
| 3181 | * |
| 3182 | * Side effects: |
| 3183 | * None. |
| 3184 | * |
| 3185 | *---------------------------------------------------------------------- |
| 3186 | */ |
| 3187 | |
| 3188 | static int |
| 3189 | HttpAppendRawBuffer( |
| 3190 | NsHttpTask *httpPtr, |
| 3191 | const char *buffer, |
| 3192 | size_t size |
| 3193 | ) { |
| 3194 | int result = TCL_OK0; |
| 3195 | ssize_t written; |
| 3196 | |
| 3197 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 3198 | NS_NONNULL_ASSERT(buffer != NULL)((void) (0)); |
| 3199 | |
| 3200 | if (httpPtr->recvSpoolMode == NS_TRUE1) { |
| 3201 | if (httpPtr->spoolFd != NS_INVALID_FD(-1)) { |
| 3202 | written = ns_writewrite(httpPtr->spoolFd, buffer, size); |
| 3203 | } else if (httpPtr->spoolChan != NULL((void*)0)) { |
| 3204 | written = (ssize_t)Tcl_Write(httpPtr->spoolChan, buffer, (int)size); |
| 3205 | } else { |
| 3206 | written = -1; |
| 3207 | } |
| 3208 | } else { |
| 3209 | Tcl_DStringAppend(&httpPtr->ds, buffer, (int)size); |
| 3210 | written = (ssize_t)size; |
| 3211 | } |
| 3212 | |
| 3213 | if (written > -1) { |
| 3214 | result = TCL_OK0; |
| 3215 | } else { |
| 3216 | Ns_Log(Error, "HttpAppendRawBuffer: spooling of received content failed"); |
| 3217 | result = TCL_ERROR1; |
| 3218 | } |
| 3219 | |
| 3220 | return result; |
| 3221 | } |
| 3222 | |
| 3223 | |
| 3224 | /* |
| 3225 | *---------------------------------------------------------------------- |
| 3226 | * |
| 3227 | * HttpAppendBuffer |
| 3228 | * |
| 3229 | * Append data (w/ or w/o compression) to the spool file |
| 3230 | * or Tcl channel or memory. |
| 3231 | * |
| 3232 | * Results: |
| 3233 | * Tcl result code |
| 3234 | * |
| 3235 | * Side effects: |
| 3236 | * May uncompress datat in the passed buffer. |
| 3237 | * |
| 3238 | *---------------------------------------------------------------------- |
| 3239 | */ |
| 3240 | |
| 3241 | static int |
| 3242 | HttpAppendBuffer( |
| 3243 | NsHttpTask *httpPtr, |
| 3244 | const char *buffer, |
| 3245 | size_t size |
| 3246 | ) { |
| 3247 | int result = TCL_OK0; |
| 3248 | size_t bodySize = 0u; |
| 3249 | |
| 3250 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 3251 | NS_NONNULL_ASSERT(buffer != NULL)((void) (0)); |
| 3252 | |
| 3253 | Ns_Log(Ns_LogTaskDebug, "HttpAppendBuffer: got %" PRIuz"zu" " bytes flags:%.6x", |
| 3254 | size, httpPtr->flags); |
| 3255 | |
| 3256 | if (unlikely((httpPtr->flags & NS_HTTP_FLAG_DECOMPRESS) == 0u)(__builtin_expect(((httpPtr->flags & (1u<<0)) == 0u), 0)) |
| 3257 | || likely((httpPtr->flags & NS_HTTP_FLAG_GZIP_ENCODING) == 0u)(__builtin_expect(((httpPtr->flags & (1u<<1)) == 0u), 1))) { |
| 3258 | |
| 3259 | /* |
| 3260 | * Output raw content |
| 3261 | */ |
| 3262 | result = HttpAppendRawBuffer(httpPtr, buffer, size); |
| 3263 | if (result == TCL_OK0) { |
| 3264 | bodySize = size; |
| 3265 | } |
| 3266 | |
| 3267 | } else { |
| 3268 | char out[CHUNK_SIZE16384]; |
| 3269 | |
| 3270 | out[0] = '\0'; |
| 3271 | |
| 3272 | /* |
| 3273 | * Decompress content |
| 3274 | */ |
| 3275 | (void) Ns_InflateBufferInit(httpPtr->compress, buffer, size); |
| 3276 | do { |
| 3277 | size_t ul = 0u; |
| 3278 | |
| 3279 | result = Ns_InflateBuffer(httpPtr->compress, out, CHUNK_SIZE16384, &ul); |
| 3280 | if (HttpAppendRawBuffer(httpPtr, out, ul) == TCL_OK0) { |
| 3281 | bodySize += ul; |
| 3282 | } else { |
| 3283 | result = TCL_ERROR1; |
| 3284 | } |
| 3285 | } while(result == TCL_CONTINUE4); |
| 3286 | } |
| 3287 | |
| 3288 | if (result == TCL_OK0) { |
| 3289 | if (httpPtr->replyHeaderSize > 0 && httpPtr->status > 0) { |
| 3290 | |
| 3291 | /* |
| 3292 | * Headers and status have been parsed so all the |
| 3293 | * data coming from this point are counted up as |
| 3294 | * being the (uncompressed, decoded) reply content. |
| 3295 | */ |
| 3296 | Ns_MutexLock(&httpPtr->lock); |
| 3297 | httpPtr->replyBodySize += bodySize; |
| 3298 | httpPtr->replySize += size; |
| 3299 | Ns_MutexUnlock(&httpPtr->lock); |
| 3300 | } |
| 3301 | } |
| 3302 | |
| 3303 | return result; |
| 3304 | } |
| 3305 | |
| 3306 | |
| 3307 | /* |
| 3308 | *---------------------------------------------------------------------- |
| 3309 | * |
| 3310 | * HttpAppendContent |
| 3311 | * |
| 3312 | * Append reply content to where it belongs, |
| 3313 | * potentially decoding the chunked reply format. |
| 3314 | * |
| 3315 | * Results: |
| 3316 | * Tcl result code |
| 3317 | * |
| 3318 | * Side effects: |
| 3319 | * None. |
| 3320 | * |
| 3321 | *---------------------------------------------------------------------- |
| 3322 | */ |
| 3323 | |
| 3324 | static int |
| 3325 | HttpAppendContent( |
| 3326 | NsHttpTask *httpPtr, |
| 3327 | const char *buffer, |
| 3328 | size_t size |
| 3329 | ) { |
| 3330 | int result; |
| 3331 | |
| 3332 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 3333 | |
| 3334 | if ((httpPtr->flags & NS_HTTP_FLAG_CHUNKED(1u<<2)) == 0u) { |
| 3335 | result = HttpAppendBuffer(httpPtr, buffer, size); |
| 3336 | } else { |
| 3337 | result = HttpAppendChunked(httpPtr, buffer, size); |
| 3338 | } |
| 3339 | |
| 3340 | return result; |
| 3341 | } |
| 3342 | |
| 3343 | |
| 3344 | /* |
| 3345 | *---------------------------------------------------------------------- |
| 3346 | * |
| 3347 | * HttpAppendChunked |
| 3348 | * |
| 3349 | * Parse chunked content. |
| 3350 | * |
| 3351 | * This implements a simple state machine that parses data |
| 3352 | * delivered blockwise. As the chunked-format may be |
| 3353 | * sliced on an arbitrary point between the blocks, we must |
| 3354 | * operate character-wise and maintain the internal state. |
| 3355 | * In order not to write yet-another completely closed and |
| 3356 | * fixed parser for the format, here is the implementation |
| 3357 | * of a simple state machine that can be easily programmed |
| 3358 | * to parse any character sequence, including the chunked. |
| 3359 | * |
| 3360 | * The machine consists of a set of callbacks. Each callback |
| 3361 | * operates on the passed buffer and size of data in the |
| 3362 | * buffer. Callbacks are invoked in the order how they are |
| 3363 | * specified in the array. Each callback returns signals |
| 3364 | * that influence the order of callback invocation. |
| 3365 | * Also each callback can replace the callback-set during |
| 3366 | * its operation and adjust the pointer to the next in row. |
| 3367 | * The signals returned by each callback include: |
| 3368 | * |
| 3369 | * TCL_OK done regularly, go to the next one |
| 3370 | * TCL_BREAK re-start from the first callback |
| 3371 | * TCL_ERROR stops parsing |
| 3372 | * |
| 3373 | * Callbacks are invoked one after another until there is |
| 3374 | * unrocessed data in the buffer. |
| 3375 | * The last callback is marked as NULL. After reaching it |
| 3376 | * all is repeated from the beginning. When all data is |
| 3377 | * consumed the callback that encountered that state |
| 3378 | * usually returns TCL_BREAK which stops the machine and |
| 3379 | * gives the control back to the user. |
| 3380 | * Each callback adjusts the number of bytes left in the |
| 3381 | * buffer and repositions the buffer to skip consumed |
| 3382 | * characters. |
| 3383 | * |
| 3384 | * Writing a parser requires writing one or more |
| 3385 | * HttpParserProcs, stuffing them in an array |
| 3386 | * terminated by the NULL parser and starting the |
| 3387 | * machine by simply invoking the registered procs. |
| 3388 | * |
| 3389 | * Due to its universal nature, this code can be made |
| 3390 | * independent of NsHttp and re-used elsewhere. |
| 3391 | * |
| 3392 | * Results: |
| 3393 | * Tcl result code |
| 3394 | * |
| 3395 | * Side effects: |
| 3396 | * None. |
| 3397 | * |
| 3398 | *---------------------------------------------------------------------- |
| 3399 | */ |
| 3400 | |
| 3401 | static int |
| 3402 | HttpAppendChunked( |
| 3403 | NsHttpTask *httpPtr, |
| 3404 | const char *buffer, |
| 3405 | size_t size |
| 3406 | ) { |
| 3407 | int result = TCL_OK0; |
| 3408 | char *buf = (char *)buffer; |
| 3409 | size_t len = size; |
| 3410 | NsHttpChunk *chunkPtr; |
| 3411 | |
| 3412 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 3413 | chunkPtr = httpPtr->chunk; |
| 3414 | NS_NONNULL_ASSERT(chunkPtr != NULL)((void) (0)); |
| 3415 | |
| 3416 | Ns_Log(Ns_LogTaskDebug, "HttpAppendChunked: http:%p, task:%p", |
| 3417 | (void*)httpPtr, (void*)httpPtr->task); |
| 3418 | |
| 3419 | while (len > 0 && result != TCL_ERROR1) { |
| 3420 | NsHttpParseProc *parseProcPtr; |
| 3421 | |
| 3422 | Ns_Log(Ns_LogTaskDebug, "... len %lu ", len); |
| 3423 | |
| 3424 | parseProcPtr = *(chunkPtr->parsers + chunkPtr->callx); |
| 3425 | while (len > 0 && parseProcPtr != NULL((void*)0)) { |
| 3426 | result = (*parseProcPtr)(httpPtr, &buf, &len); |
| 3427 | Ns_Log(Ns_LogTaskDebug, "... parseproc returns %d ", result); |
| 3428 | if (result != TCL_OK0) { |
| 3429 | break; |
| 3430 | } |
| 3431 | chunkPtr->callx++; |
| 3432 | parseProcPtr = *(chunkPtr->parsers + chunkPtr->callx); |
| 3433 | } |
| 3434 | if (parseProcPtr == NULL((void*)0)) { |
| 3435 | chunkPtr->callx = 0; /* Repeat from the first proc */ |
| 3436 | } |
| 3437 | } |
| 3438 | |
| 3439 | if (result != TCL_ERROR1) { |
| 3440 | result = TCL_OK0; |
| 3441 | } |
| 3442 | |
| 3443 | return result; |
| 3444 | } |
| 3445 | |
| 3446 | |
| 3447 | /* |
| 3448 | *---------------------------------------------------------------------- |
| 3449 | * |
| 3450 | * HttpClose -- |
| 3451 | * |
| 3452 | * Finish task and cleanup memory |
| 3453 | * |
| 3454 | * Results: |
| 3455 | * None |
| 3456 | * |
| 3457 | * Side effects: |
| 3458 | * Free up memory |
| 3459 | * |
| 3460 | *---------------------------------------------------------------------- |
| 3461 | */ |
| 3462 | |
| 3463 | static void |
| 3464 | HttpClose( |
| 3465 | NsHttpTask *httpPtr |
| 3466 | ) { |
| 3467 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 3468 | |
| 3469 | Ns_Log(Ns_LogTaskDebug, "HttpClose: http:%p, task:%p", |
| 3470 | (void*)httpPtr, (void*)httpPtr->task); |
| 3471 | |
| 3472 | /* |
| 3473 | * When HttpConnect runs into a failure, it might not have httpPtr->task |
| 3474 | * set. We cannot be sure, the task is always set. |
| 3475 | */ |
| 3476 | |
| 3477 | if (httpPtr->task != NULL((void*)0)) { |
| 3478 | (void) Ns_TaskFree(httpPtr->task); |
| 3479 | httpPtr->task = NULL((void*)0); |
| 3480 | } |
| 3481 | #ifdef HAVE_OPENSSL_EVP_H1 |
| 3482 | if (httpPtr->ssl != NULL((void*)0)) { |
| 3483 | SSL_shutdown(httpPtr->ssl); |
| 3484 | SSL_free(httpPtr->ssl); |
| 3485 | } |
| 3486 | if (httpPtr->ctx != NULL((void*)0)) { |
| 3487 | SSL_CTX_free(httpPtr->ctx); |
| 3488 | } |
| 3489 | #endif |
| 3490 | if (httpPtr->sock != NS_INVALID_SOCKET(-1)) { |
| 3491 | ns_sockcloseclose(httpPtr->sock); |
| 3492 | } |
| 3493 | if (httpPtr->spoolFileName != NULL((void*)0)) { |
| 3494 | ns_free((void *)httpPtr->spoolFileName); |
| 3495 | } |
| 3496 | if (httpPtr->doneCallback != NULL((void*)0)) { |
| 3497 | ns_free((void *)httpPtr->doneCallback); |
| 3498 | } |
| 3499 | if (httpPtr->spoolFd != NS_INVALID_FD(-1)) { |
| 3500 | (void)ns_closeclose(httpPtr->spoolFd); |
| 3501 | } |
| 3502 | if (httpPtr->bodyFileFd != NS_INVALID_FD(-1)) { |
| 3503 | (void)ns_closeclose(httpPtr->bodyFileFd); |
| 3504 | } |
| 3505 | if (httpPtr->bodyChan != NULL((void*)0)) { |
| 3506 | (void)Tcl_Close(NULL((void*)0), httpPtr->bodyChan); |
| 3507 | } |
| 3508 | if (httpPtr->spoolChan != NULL((void*)0)) { |
| 3509 | (void)Tcl_Close(NULL((void*)0), httpPtr->spoolChan); |
| 3510 | } |
| 3511 | if (httpPtr->compress != NULL((void*)0)) { |
| 3512 | (void)Ns_InflateEnd(httpPtr->compress); |
| 3513 | ns_free((void *)httpPtr->compress); |
| 3514 | } |
| 3515 | if (httpPtr->infoObj != NULL((void*)0)) { |
| 3516 | Tcl_DecrRefCount(httpPtr->infoObj)do { Tcl_Obj *_objPtr = (httpPtr->infoObj); if (_objPtr-> refCount-- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 3517 | httpPtr->infoObj = NULL((void*)0); |
| 3518 | } |
| 3519 | if (httpPtr->replyHeaders != NULL((void*)0)) { |
| 3520 | Ns_SetFree(httpPtr->replyHeaders); |
| 3521 | } |
| 3522 | if (httpPtr->timeout != NULL((void*)0)) { |
| 3523 | ns_free((void *)httpPtr->timeout); |
| 3524 | } |
| 3525 | |
| 3526 | ns_free((void *)httpPtr->url); |
| 3527 | ns_free((void *)httpPtr->method); |
| 3528 | |
| 3529 | Ns_MutexDestroy(&httpPtr->lock); /* Should not be held locked here! */ |
| 3530 | Tcl_DStringFree(&httpPtr->ds); |
| 3531 | |
| 3532 | if (httpPtr->chunk != NULL((void*)0)) { |
| 3533 | Tcl_DStringFree(&httpPtr->chunk->ds); |
| 3534 | ns_free((void *)httpPtr->chunk); |
| 3535 | } |
| 3536 | |
| 3537 | ns_free((void *)httpPtr); |
| 3538 | } |
| 3539 | |
| 3540 | |
| 3541 | /* |
| 3542 | *---------------------------------------------------------------------- |
| 3543 | * |
| 3544 | * HttpCancel -- |
| 3545 | * |
| 3546 | * Mark the task as cancelled and wait (indefinitely) |
| 3547 | * for the task to finish. |
| 3548 | * |
| 3549 | * Results: |
| 3550 | * None. |
| 3551 | * |
| 3552 | * Side effects: |
| 3553 | * May free task-related memory |
| 3554 | * |
| 3555 | *---------------------------------------------------------------------- |
| 3556 | */ |
| 3557 | |
| 3558 | static void |
| 3559 | HttpCancel( |
| 3560 | NsHttpTask *httpPtr |
| 3561 | ) { |
| 3562 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 3563 | NS_NONNULL_ASSERT(httpPtr->task != NULL)((void) (0)); |
| 3564 | |
| 3565 | (void) Ns_TaskCancel(httpPtr->task); |
| 3566 | Ns_TaskWaitCompleted(httpPtr->task); |
| 3567 | } |
| 3568 | |
| 3569 | |
| 3570 | /* |
| 3571 | *---------------------------------------------------------------------- |
| 3572 | * |
| 3573 | * HttpAddInfo -- |
| 3574 | * |
| 3575 | * Adds some task-related information |
| 3576 | * in form of a Tcl dictionary. |
| 3577 | * |
| 3578 | * Results: |
| 3579 | * None. |
| 3580 | * |
| 3581 | * Side effects: |
| 3582 | * None. |
| 3583 | * |
| 3584 | *---------------------------------------------------------------------- |
| 3585 | */ |
| 3586 | |
| 3587 | static void |
| 3588 | HttpAddInfo( |
| 3589 | NsHttpTask *httpPtr, |
| 3590 | const char *key, |
| 3591 | const char *value |
| 3592 | ) { |
| 3593 | Tcl_Obj *keyObj, *valObj; |
| 3594 | |
| 3595 | if (httpPtr->infoObj == NULL((void*)0)) { |
| 3596 | httpPtr->infoObj = Tcl_NewDictObj(); |
| 3597 | Tcl_IncrRefCount(httpPtr->infoObj)++(httpPtr->infoObj)->refCount; |
| 3598 | } |
| 3599 | |
| 3600 | keyObj = Tcl_NewStringObj(key, -1); |
| 3601 | valObj = Tcl_NewStringObj(value, -1); |
| 3602 | |
| 3603 | Tcl_DictObjPut(NULL((void*)0), httpPtr->infoObj, keyObj, valObj); |
| 3604 | } |
| 3605 | |
| 3606 | |
| 3607 | /* |
| 3608 | *---------------------------------------------------------------------- |
| 3609 | * |
| 3610 | * HttpTaskSend -- |
| 3611 | * |
| 3612 | * Send data via plain TCP or via OpenSSL. |
| 3613 | * May send less data then requested. |
| 3614 | * |
| 3615 | * Results: |
| 3616 | * Number of bytes sent or -1 on error. |
| 3617 | * |
| 3618 | * Side effects: |
| 3619 | * If passed length of 0, will do nothing (and return 0). |
| 3620 | * Otherwise, if unable to send data, will return 0, |
| 3621 | * if the underlying socket is (still) not writable. |
| 3622 | * In such cases, caller must repeat the operation after |
| 3623 | * making sure (by whatever means) the socket is writable. |
| 3624 | * |
| 3625 | *---------------------------------------------------------------------- |
| 3626 | */ |
| 3627 | |
| 3628 | static ssize_t |
| 3629 | HttpTaskSend( |
| 3630 | const NsHttpTask *httpPtr, |
| 3631 | const void *buffer, |
| 3632 | size_t length |
| 3633 | ) { |
| 3634 | ssize_t sent; |
| 3635 | struct iovec iov, *bufs = &iov; |
| 3636 | int nbufs = 1; |
| 3637 | |
| 3638 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 3639 | NS_NONNULL_ASSERT(buffer != NULL)((void) (0)); |
| 3640 | |
| 3641 | iov.iov_base = (char*)buffer; |
| 3642 | iov.iov_len = length; |
| 3643 | |
| 3644 | if (httpPtr->ssl == NULL((void*)0)) { |
| 3645 | sent = Ns_SockSendBufs2(httpPtr->sock, bufs, nbufs, 0); |
| 3646 | } else { |
| 3647 | #ifndef HAVE_OPENSSL_EVP_H1 |
| 3648 | sent = -1; |
| 3649 | #else |
| 3650 | sent = Ns_SSLSendBufs2(httpPtr->ssl, bufs, nbufs); |
| 3651 | #endif |
| 3652 | } |
| 3653 | |
| 3654 | Ns_Log(Ns_LogTaskDebug, "HttpTaskSend: sent %" PRIdz"zd" |
| 3655 | " bytes (out of %" PRIuz"zu" ")", sent, length); |
| 3656 | |
| 3657 | return sent; |
| 3658 | } |
| 3659 | |
| 3660 | |
| 3661 | /* |
| 3662 | *---------------------------------------------------------------------- |
| 3663 | * |
| 3664 | * HttpTaskRecv -- |
| 3665 | * |
| 3666 | * Receive data via plain TCP or via OpenSSL. |
| 3667 | * |
| 3668 | * Results: |
| 3669 | * Number of bytes received or -1 on error |
| 3670 | * |
| 3671 | * Side effects: |
| 3672 | * None. |
| 3673 | * |
| 3674 | *---------------------------------------------------------------------- |
| 3675 | */ |
| 3676 | |
| 3677 | static ssize_t |
| 3678 | HttpTaskRecv( |
| 3679 | const NsHttpTask *httpPtr, |
| 3680 | char *buffer, |
| 3681 | size_t length, |
| 3682 | Ns_SockState *statePtr |
| 3683 | ) { |
| 3684 | ssize_t recv; |
| 3685 | int nbufs = 1; |
| 3686 | unsigned long recvErrorCode; |
| 3687 | struct iovec iov, *bufs = &iov; |
| 3688 | |
| 3689 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 3690 | NS_NONNULL_ASSERT(buffer != NULL)((void) (0)); |
| 3691 | |
| 3692 | iov.iov_base = (void *)buffer; |
| 3693 | iov.iov_len = length; |
| 3694 | |
| 3695 | if (httpPtr->ssl == NULL((void*)0)) { |
| 3696 | recv = Ns_SockRecvBufs2(httpPtr->sock, bufs, nbufs, 0u, statePtr, &recvErrorCode); |
| 3697 | } else { |
| 3698 | #ifndef HAVE_OPENSSL_EVP_H1 |
| 3699 | recv = -1; |
| 3700 | #else |
| 3701 | recv = Ns_SSLRecvBufs2(httpPtr->ssl, bufs, nbufs, statePtr, &recvErrorCode); |
| 3702 | #endif |
| 3703 | } |
| 3704 | |
| 3705 | Ns_Log(Ns_LogTaskDebug, "HttpTaskRecv: received %" PRIdz"zd" |
| 3706 | " bytes (buffer size %" PRIuz"zu" ")", recv, length); |
| 3707 | |
| 3708 | return recv; |
| 3709 | } |
| 3710 | |
| 3711 | |
| 3712 | /* |
| 3713 | *---------------------------------------------------------------------- |
| 3714 | * |
| 3715 | * HttpDoneCallback -- |
| 3716 | * |
| 3717 | * Evaluate the doneCallback. For the time being, this is |
| 3718 | * executed in the default server context (may not be right!). |
| 3719 | * |
| 3720 | * Results: |
| 3721 | * None |
| 3722 | * |
| 3723 | * Side effects: |
| 3724 | * Many, depending on the callback. |
| 3725 | * Http task is garbage collected. |
| 3726 | * |
| 3727 | *---------------------------------------------------------------------- |
| 3728 | */ |
| 3729 | |
| 3730 | static void |
| 3731 | HttpDoneCallback( |
| 3732 | NsHttpTask *httpPtr |
| 3733 | ) { |
| 3734 | int result; |
| 3735 | Tcl_Interp *interp; |
| 3736 | Tcl_DString script; |
| 3737 | |
| 3738 | NS_NONNULL_ASSERT(httpPtr != NULL)((void) (0)); |
| 3739 | |
| 3740 | Ns_Log(Ns_LogTaskDebug, "HttpDoneCallback: finalSockState:%.2x, err:(%s)", |
| 3741 | httpPtr->finalSockState, |
| 3742 | (httpPtr->error != NULL((void*)0)) ? httpPtr->error : "none"); |
| 3743 | |
| 3744 | interp = NsTclAllocateInterp( httpPtr->servPtr); |
| 3745 | |
| 3746 | result = HttpGetResult(interp, httpPtr); |
| 3747 | |
| 3748 | Tcl_DStringInit(&script); |
| 3749 | Tcl_DStringAppend(&script, httpPtr->doneCallback, -1); |
| 3750 | Ns_DStringPrintf(&script, " %d ", result); |
| 3751 | Tcl_DStringAppendElement(&script, Tcl_GetStringResult(interp)); |
| 3752 | |
| 3753 | /* |
| 3754 | * Splice body/spool channels into the callback interp. |
| 3755 | * All supplied channels must be closed by the callback. |
| 3756 | * Alternatively, the Tcl will close them at the point |
| 3757 | * of interp de-allocation, which might not be safe. |
| 3758 | */ |
| 3759 | HttpSpliceChannels(interp, httpPtr); |
| 3760 | |
| 3761 | result = Tcl_EvalEx(interp, script.string, script.length, 0); |
| 3762 | |
| 3763 | if (result != TCL_OK0) { |
| 3764 | (void) Ns_TclLogErrorInfo(interp, "\n(context: httptask)"); |
| 3765 | } |
| 3766 | |
| 3767 | Tcl_DStringFree(&script); |
| 3768 | Ns_TclDeAllocateInterp(interp); |
| 3769 | |
| 3770 | HttpClose(httpPtr); /* This frees the httpPtr! */ |
| 3771 | } |
| 3772 | |
| 3773 | |
| 3774 | /* |
| 3775 | *---------------------------------------------------------------------- |
| 3776 | * |
| 3777 | * HttpProc -- |
| 3778 | * |
| 3779 | * Task callback for ns_http connections. |
| 3780 | * This is a state-machine that Ns_Task is repeatedly |
| 3781 | * calling to process various socket states. |
| 3782 | * |
| 3783 | * Results: |
| 3784 | * None. |
| 3785 | * |
| 3786 | * Side effects: |
| 3787 | * Calls Ns_TaskCallback and Ns_TaskDone to manage task state |
| 3788 | * |
| 3789 | *---------------------------------------------------------------------- |
| 3790 | */ |
| 3791 | |
| 3792 | static void |
| 3793 | HttpProc( |
| 3794 | Ns_Task *task, |
| 3795 | NS_SOCKETint UNUSED(sock)UNUSED_sock __attribute__((__unused__)), |
| 3796 | void *arg, |
| 3797 | Ns_SockState why |
| 3798 | ) { |
| 3799 | NsHttpTask *httpPtr; |
| 3800 | ssize_t n = 0; |
| 3801 | bool_Bool taskDone = NS_TRUE1; |
| 3802 | Ns_SockState nextState; |
| 3803 | |
| 3804 | NS_NONNULL_ASSERT(task != NULL)((void) (0)); |
| 3805 | NS_NONNULL_ASSERT(arg != NULL)((void) (0)); |
| 3806 | |
| 3807 | httpPtr = (NsHttpTask *)arg; |
| 3808 | |
| 3809 | Ns_Log(Ns_LogTaskDebug, "HttpProc: enter socket state %.2x", why); |
| 3810 | |
| 3811 | switch (why) { |
| 3812 | case NS_SOCK_INIT: |
| 3813 | |
| 3814 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_INIT"); |
| 3815 | |
| 3816 | if (httpPtr->bodyChan != NULL((void*)0)) { |
| 3817 | HttpSpliceChannel(NULL((void*)0), httpPtr->bodyChan); |
| 3818 | } |
| 3819 | if (httpPtr->spoolChan != NULL((void*)0)) { |
| 3820 | HttpSpliceChannel(NULL((void*)0), httpPtr->spoolChan); |
| 3821 | } |
| 3822 | Ns_TaskCallback(task, NS_SOCK_WRITE, httpPtr->timeout); |
| 3823 | taskDone = NS_FALSE0; |
| 3824 | |
| 3825 | break; |
| 3826 | |
| 3827 | case NS_SOCK_WRITE: |
| 3828 | |
| 3829 | nextState = why; /* We may switch to read state below */ |
| 3830 | |
| 3831 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE sendSpoolMode:%d," |
| 3832 | " fd:%d, chan:%s", httpPtr->sendSpoolMode, httpPtr->bodyFileFd, |
| 3833 | httpPtr->bodyChan ? Tcl_GetChannelName(httpPtr->bodyChan) : "(none)"); |
| 3834 | |
| 3835 | if (httpPtr->sendSpoolMode == NS_FALSE0) { |
| 3836 | size_t remain; |
| 3837 | |
| 3838 | /* |
| 3839 | * Send (next part of) the request from memory. |
| 3840 | * This may not include the request body, as it may have |
| 3841 | * to be spooled from the passed file or Tcl channel. |
| 3842 | * Decision whether to do this or not is done when we have |
| 3843 | * finished sending request line + all of the headers. |
| 3844 | */ |
| 3845 | remain = (size_t)(httpPtr->requestLength - httpPtr->sent); |
| 3846 | |
| 3847 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE" |
| 3848 | " will send dsPtr:%p, next:%p, remain:%" PRIuz"zu", |
| 3849 | (void*)httpPtr->ds.string, (void*)httpPtr->next, remain); |
| 3850 | |
| 3851 | if (remain > 0) { |
| 3852 | n = HttpTaskSend(httpPtr, httpPtr->next, remain); |
| 3853 | } else { |
| 3854 | n = 0; |
| 3855 | } |
| 3856 | |
| 3857 | if (n == -1) { |
| 3858 | httpPtr->error = "http send failed"; |
| 3859 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE send failed"); |
| 3860 | |
| 3861 | } else { |
| 3862 | ssize_t nb = 0; |
| 3863 | |
| 3864 | httpPtr->next += n; |
| 3865 | Ns_MutexLock(&httpPtr->lock); |
| 3866 | httpPtr->sent += (size_t)n; |
| 3867 | nb = (ssize_t)(httpPtr->sent - httpPtr->requestHeaderSize); |
| 3868 | if (nb > 0) { |
| 3869 | httpPtr->sendBodySize = (size_t)nb; |
| 3870 | } |
| 3871 | Ns_MutexUnlock(&httpPtr->lock); |
| 3872 | remain = (size_t)(httpPtr->requestLength - httpPtr->sent); |
| 3873 | if (remain > 0) { |
| 3874 | |
| 3875 | /* |
| 3876 | * We still have something to be sent |
| 3877 | * left in memory. |
| 3878 | */ |
| 3879 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE" |
| 3880 | " sent:%" PRIdz"zd" " bytes from memory," |
| 3881 | " remain:%" PRIuz"zu", n, remain); |
| 3882 | } else { |
| 3883 | const char *logMsg; |
| 3884 | |
| 3885 | /* |
| 3886 | * At this point we sent the line/headers |
| 3887 | * and can now switch to sending the request |
| 3888 | * body if any expected, or switch to the next |
| 3889 | * socket state (read stuff from the remote). |
| 3890 | */ |
| 3891 | logMsg = "HttpProc: NS_SOCK_WRITE headers sent"; |
| 3892 | httpPtr->next = NULL((void*)0); |
| 3893 | Tcl_DStringSetLength(&httpPtr->ds, 0); |
| 3894 | |
| 3895 | if (httpPtr->bodyFileFd != NS_INVALID_FD(-1)) { |
| 3896 | httpPtr->sendSpoolMode = NS_TRUE1; |
| 3897 | Ns_Log(Ns_LogTaskDebug, "%s, spool using fd:%d, size:%" |
| 3898 | PRIuz"zu", logMsg, httpPtr->bodyFileFd, |
| 3899 | httpPtr->bodySize); |
| 3900 | |
| 3901 | } else if (httpPtr->bodyChan != NULL((void*)0)) { |
| 3902 | httpPtr->sendSpoolMode = NS_TRUE1; |
| 3903 | Ns_Log(Ns_LogTaskDebug, "%s, spool using chan:%s, size:%" |
| 3904 | PRIuz"zu", logMsg, Tcl_GetChannelName(httpPtr->bodyChan), |
| 3905 | httpPtr->bodySize); |
| 3906 | |
| 3907 | } else { |
| 3908 | httpPtr->sendSpoolMode = NS_FALSE0; |
| 3909 | Ns_Log(Ns_LogTaskDebug, "%s, switch to read", logMsg); |
| 3910 | nextState = NS_SOCK_READ; |
| 3911 | } |
| 3912 | } |
| 3913 | |
| 3914 | taskDone = NS_FALSE0; |
| 3915 | } |
| 3916 | |
| 3917 | } else { |
| 3918 | size_t toRead = CHUNK_SIZE16384; |
| 3919 | bool_Bool onEof = NS_FALSE0; |
| 3920 | |
| 3921 | /* |
| 3922 | * Send the request body from a file or from a Tcl channel. |
| 3923 | */ |
| 3924 | |
| 3925 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE sendSpoolMode" |
| 3926 | " buffersize:%d buffer:%p next:%p sent:%" PRIuz"zu", |
| 3927 | httpPtr->ds.length, (void *)httpPtr->ds.string, |
| 3928 | (void *)httpPtr->next, httpPtr->sent); |
| 3929 | |
| 3930 | if (httpPtr->next == NULL((void*)0)) { |
| 3931 | |
| 3932 | /* |
| 3933 | * Read remaining body data in chunks |
| 3934 | */ |
| 3935 | Tcl_DStringSetLength(&httpPtr->ds, (int)toRead); |
| 3936 | httpPtr->next = httpPtr->ds.string; |
| 3937 | if (toRead > httpPtr->bodySize) { |
| 3938 | toRead = httpPtr->bodySize; /* At end of the body! */ |
| 3939 | } |
| 3940 | if (toRead == 0) { |
| 3941 | n = 0; |
| 3942 | } else if (httpPtr->bodyFileFd != NS_INVALID_FD(-1)) { |
| 3943 | n = ns_readread(httpPtr->bodyFileFd, httpPtr->next, toRead); |
| 3944 | } else if (httpPtr->bodyChan != NULL((void*)0)) { |
| 3945 | n = Tcl_Read(httpPtr->bodyChan, httpPtr->next, (int)toRead); |
| 3946 | } else { |
| 3947 | n = -1; /* Here we could read only from file or chan! */ |
| 3948 | } |
| 3949 | |
| 3950 | if (toRead == 0 || (n > -1 && n < (ssize_t)toRead)) { |
| 3951 | |
| 3952 | /* |
| 3953 | * We have a short file/chan read which can only mean |
| 3954 | * we are at the EOF (we are reading in blocking mode!). |
| 3955 | */ |
| 3956 | onEof = NS_TRUE1; |
| 3957 | Tcl_DStringSetLength(&httpPtr->ds, (int)n); |
| 3958 | } |
| 3959 | |
| 3960 | if (n > 0) { |
| 3961 | assert((size_t)n <= httpPtr->bodySize)((void) (0)); |
| 3962 | httpPtr->bodySize -= (size_t)n; |
| 3963 | } |
| 3964 | |
| 3965 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE sendSpoolMode" |
| 3966 | " got:%" PRIdz"zd" " wanted:%" PRIuz"zu" " bytes, eof:%d", |
| 3967 | n, toRead, onEof); |
| 3968 | |
| 3969 | } else { |
| 3970 | |
| 3971 | /* |
| 3972 | * The buffer has still some content left |
| 3973 | */ |
| 3974 | n = httpPtr->ds.length - (httpPtr->next - httpPtr->ds.string); |
| 3975 | |
| 3976 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE" |
| 3977 | " remaining buffersize:%" PRIdz"zd", n); |
| 3978 | } |
| 3979 | |
| 3980 | /* |
| 3981 | * We got some bytes from file/channel/memory |
| 3982 | * so send them to the remote. |
| 3983 | */ |
| 3984 | |
| 3985 | if (unlikely(n == -1)(__builtin_expect((n == -1), 0))) { |
| 3986 | httpPtr->error = "http read failed"; |
| 3987 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE read failed"); |
| 3988 | |
| 3989 | } else { |
| 3990 | ssize_t toSend = n, sent = 0; |
| 3991 | |
| 3992 | if (toSend > 0) { |
| 3993 | sent = HttpTaskSend(httpPtr, httpPtr->next, (size_t)toSend); |
| 3994 | } |
| 3995 | |
| 3996 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE sent" |
| 3997 | " %" PRIdz"zd" " of %" PRIuz"zu" " bytes", sent, toSend); |
| 3998 | |
| 3999 | if (unlikely(sent == -1)(__builtin_expect((sent == -1), 0))) { |
| 4000 | httpPtr->error = "http send failed"; |
| 4001 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE send failed"); |
| 4002 | |
| 4003 | } else if (sent < toSend) { |
| 4004 | |
| 4005 | /* |
| 4006 | * We have sent less bytes than available |
| 4007 | * in the buffer. At this point we may have |
| 4008 | * sent zero bytes as well but this is very |
| 4009 | * unlikely and would mean we were somehow |
| 4010 | * wrongly signaled from the task handler |
| 4011 | * (we wrote nothing to a writable sink?). |
| 4012 | */ |
| 4013 | |
| 4014 | if (likely(sent > 0)(__builtin_expect((sent > 0), 1))) { |
| 4015 | ssize_t nb = 0; |
| 4016 | |
| 4017 | httpPtr->next += sent; |
| 4018 | Ns_MutexLock(&httpPtr->lock); |
| 4019 | httpPtr->sent += (size_t)sent; |
| 4020 | nb = (ssize_t)(httpPtr->sent - httpPtr->requestHeaderSize); |
| 4021 | if (nb > 0) { |
| 4022 | httpPtr->sendBodySize = (size_t)nb; |
| 4023 | } |
| 4024 | Ns_MutexUnlock(&httpPtr->lock); |
| 4025 | } |
| 4026 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE partial" |
| 4027 | " send, remain:%ld", (long)(toSend - sent)); |
| 4028 | |
| 4029 | taskDone = NS_FALSE0; |
| 4030 | |
| 4031 | } else if (sent == toSend) { |
| 4032 | |
| 4033 | /* |
| 4034 | * We have sent the whole buffer |
| 4035 | */ |
| 4036 | if (sent > 0) { |
| 4037 | ssize_t nb = 0; |
| 4038 | |
| 4039 | Ns_MutexLock(&httpPtr->lock); |
| 4040 | httpPtr->sent += (size_t)sent; |
| 4041 | nb = (ssize_t)(httpPtr->sent - httpPtr->requestHeaderSize); |
| 4042 | if (nb > 0) { |
| 4043 | httpPtr->sendBodySize = (size_t)nb; |
| 4044 | } |
| 4045 | Ns_MutexUnlock(&httpPtr->lock); |
| 4046 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE sent" |
| 4047 | " full chunk, bytes:%" PRIdz"zd", sent); |
| 4048 | } |
| 4049 | |
| 4050 | Tcl_DStringSetLength(&httpPtr->ds, 0); |
| 4051 | httpPtr->next = NULL((void*)0); |
| 4052 | |
| 4053 | taskDone = NS_FALSE0; |
| 4054 | |
| 4055 | /* |
| 4056 | * Check if on the last chunk, |
| 4057 | * or on the premature EOF. |
| 4058 | */ |
| 4059 | if (toRead < CHUNK_SIZE16384 || onEof == NS_TRUE1) { |
| 4060 | if (httpPtr->bodySize == 0) { |
| 4061 | |
| 4062 | /* |
| 4063 | * That was the last chunk. |
| 4064 | * All of the body was sent, switch state |
| 4065 | */ |
| 4066 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE" |
| 4067 | " whole body sent, switch to read"); |
| 4068 | nextState = NS_SOCK_READ; |
| 4069 | |
| 4070 | } else { |
| 4071 | |
| 4072 | /* |
| 4073 | * We read less than chunksize bytes, the source |
| 4074 | * is on EOF, so what to do? Since we can't |
| 4075 | * rectify Content-Length, receiver expects us |
| 4076 | * to send more... |
| 4077 | * This situation can only happen: |
| 4078 | * WHEN fed with the wrong (too large) bodySize |
| 4079 | * OR when the file got truncated while we read it |
| 4080 | * OR somebody tossed wrongly positioned channel. |
| 4081 | * What can we do? |
| 4082 | * We can pretend all is fine and go to reading |
| 4083 | * state, expecting that either the peer's or |
| 4084 | * our own timeout expires. |
| 4085 | * Or, we can trigger the error immediately. |
| 4086 | * We opt for the latter. |
| 4087 | */ |
| 4088 | httpPtr->error = "http read failed"; |
| 4089 | taskDone = NS_TRUE1; |
| 4090 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_WRITE" |
| 4091 | " short read, left:%" PRIuz"zu", httpPtr->bodySize); |
| 4092 | } |
| 4093 | } |
| 4094 | |
| 4095 | } else { |
| 4096 | |
| 4097 | /* |
| 4098 | * This is completely unexpected: we have send more |
| 4099 | * then requested? There is something entirely wrong! |
| 4100 | * I have no idea what would be the best to do here. |
| 4101 | */ |
| 4102 | Ns_Log(Error, "HttpProc: NS_SOCK_WRITE bad state?"); |
| 4103 | } |
| 4104 | } |
| 4105 | } |
| 4106 | |
| 4107 | /* |
| 4108 | * If the request is not finished, re-apply the timeout |
| 4109 | * for the next task iteration. |
| 4110 | */ |
| 4111 | if (taskDone != NS_TRUE1) { |
| 4112 | Ns_TaskCallback(task, nextState, httpPtr->timeout); |
| 4113 | } |
| 4114 | |
| 4115 | break; |
| 4116 | |
| 4117 | case NS_SOCK_READ: |
| 4118 | |
| 4119 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_READ"); |
| 4120 | |
| 4121 | nextState = why; |
| 4122 | |
| 4123 | if (httpPtr->sent == 0u) { |
| 4124 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_READ nothing sent?"); |
| 4125 | |
| 4126 | } else { |
| 4127 | char buf[CHUNK_SIZE16384]; |
| 4128 | size_t len = CHUNK_SIZE16384; |
| 4129 | Ns_SockState sockState = NS_SOCK_NONE; |
| 4130 | |
| 4131 | /* |
| 4132 | * FIXME: |
| 4133 | * |
| 4134 | * This part can be optimized to read the reply data |
| 4135 | * directly into DString instead in the stack buffer. |
| 4136 | */ |
| 4137 | |
| 4138 | if (httpPtr->replyLength > 0) { |
| 4139 | size_t remain; |
| 4140 | |
| 4141 | remain = httpPtr->replyLength - httpPtr->replySize; |
| 4142 | if (len > remain) { |
| 4143 | len = remain; |
| 4144 | } |
| 4145 | } |
| 4146 | |
| 4147 | if (len > 0) { |
| 4148 | n = HttpTaskRecv(httpPtr, buf, len, &sockState); |
| 4149 | } else { |
| 4150 | n = 0; |
| 4151 | } |
| 4152 | |
| 4153 | if (unlikely(n == -1)(__builtin_expect((n == -1), 0))) { |
| 4154 | |
| 4155 | /* |
| 4156 | * Terminal case, some unexpected error. |
| 4157 | * At this point we do not really know |
| 4158 | * what kind of error it was. |
| 4159 | */ |
| 4160 | httpPtr->error = "http read failed"; |
| 4161 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_READ receive failed"); |
| 4162 | |
| 4163 | } else if (n > 0) { |
| 4164 | int result; |
| 4165 | |
| 4166 | /* |
| 4167 | * Most likely case: we got some bytes. |
| 4168 | */ |
| 4169 | Ns_MutexLock(&httpPtr->lock); |
| 4170 | httpPtr->received += (size_t)n; |
| 4171 | Ns_MutexUnlock(&httpPtr->lock); |
| 4172 | |
| 4173 | result = HttpAppendContent(httpPtr, buf, (size_t)n); |
| 4174 | if (unlikely(result != TCL_OK)(__builtin_expect((result != 0), 0))) { |
| 4175 | httpPtr->error = "http read failed"; |
| 4176 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_READ append failed"); |
| 4177 | } else { |
| 4178 | Ns_ReturnCode rc = NS_OK; |
| 4179 | if (httpPtr->replyHeaderSize == 0) { |
| 4180 | |
| 4181 | /* |
| 4182 | * Still not done receiving status/headers |
| 4183 | */ |
| 4184 | HttpCheckHeader(httpPtr); |
| 4185 | } |
| 4186 | if (httpPtr->replyHeaderSize > 0 && httpPtr->status == 0) { |
| 4187 | |
| 4188 | /* |
| 4189 | * Parses received status/headers, |
| 4190 | * decides where to spool content. |
| 4191 | */ |
| 4192 | rc = HttpCheckSpool(httpPtr); |
| 4193 | } |
| 4194 | if (unlikely(rc != NS_OK)(__builtin_expect((rc != NS_OK), 0))) { |
| 4195 | httpPtr->error = "http read failed"; |
| 4196 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_READ spool failed"); |
| 4197 | } else { |
| 4198 | |
| 4199 | /* |
| 4200 | * At the point of reading response content (if any). |
| 4201 | * Continue reading if any of the following is true: |
| 4202 | * |
| 4203 | * o. remote tells content length |
| 4204 | * o. chunked content not fully parsed |
| 4205 | * o. caller tells it expects content |
| 4206 | */ |
| 4207 | if (httpPtr->replyLength > 0 |
| 4208 | || ((httpPtr->flags & NS_HTTP_FLAG_CHUNKED(1u<<2)) != 0u |
| 4209 | && (httpPtr->flags & NS_HTTP_FLAG_CHUNKED_END(1u<<3)) == 0u) |
| 4210 | || (httpPtr->flags & NS_HTTP_FLAG_EMPTY(1u<<5)) == 0u) { |
| 4211 | |
| 4212 | taskDone = NS_FALSE0; |
| 4213 | } |
| 4214 | } |
| 4215 | } |
| 4216 | |
| 4217 | } else if (len > 0 && sockState == NS_SOCK_AGAIN) { |
| 4218 | |
| 4219 | /* |
| 4220 | * Received zero bytes on a readable socket |
| 4221 | * but it is not on EOD, it wants us to read more. |
| 4222 | */ |
| 4223 | taskDone = NS_FALSE0; |
| 4224 | |
| 4225 | } else if (len == 0 /* Consumed all of the replyLength bytes */ |
| 4226 | || sockState == NS_SOCK_DONE /* EOD on read */ |
| 4227 | || ((httpPtr->flags & (NS_HTTP_FLAG_CHUNKED(1u<<2) |
| 4228 | | NS_HTTP_FLAG_CHUNKED_END(1u<<3))) != 0u)) { |
| 4229 | |
| 4230 | taskDone = NS_TRUE1; /* Just for illustrative purposes */ |
| 4231 | |
| 4232 | } else { |
| 4233 | |
| 4234 | /* |
| 4235 | * Some terminal error state |
| 4236 | */ |
| 4237 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_READ error," |
| 4238 | " sockState:%.2x", sockState); |
| 4239 | } |
| 4240 | } |
| 4241 | |
| 4242 | /* |
| 4243 | * If the request is not finished, re-apply the timeout |
| 4244 | * for the next task iteration. |
| 4245 | */ |
| 4246 | if (taskDone != NS_TRUE1) { |
| 4247 | Ns_TaskCallback(task, nextState, httpPtr->timeout); |
| 4248 | } |
| 4249 | |
| 4250 | break; |
| 4251 | |
| 4252 | case NS_SOCK_TIMEOUT: |
| 4253 | |
| 4254 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_TIMEOUT"); |
| 4255 | |
| 4256 | /* |
| 4257 | * Without a doneCallback, NS_SOCK_DONE must be handled |
| 4258 | * by the caller (normally, caller would cancel the task) |
| 4259 | * hence we leave the task in processing. |
| 4260 | * |
| 4261 | * With doneCallback, the caller is cut-off of the task ID |
| 4262 | * (i.e. there is no chance for cancel) hence we must mark |
| 4263 | * the task as completed (done) right here. |
| 4264 | */ |
| 4265 | taskDone = (httpPtr->doneCallback != NULL((void*)0)); |
| 4266 | httpPtr->error = "http request timeout"; |
| 4267 | |
| 4268 | break; |
| 4269 | |
| 4270 | case NS_SOCK_EXIT: |
| 4271 | |
| 4272 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_EXIT"); |
| 4273 | httpPtr->error = "http task queue shutdown"; |
| 4274 | |
| 4275 | break; |
| 4276 | |
| 4277 | case NS_SOCK_CANCEL: |
| 4278 | |
| 4279 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_CANCEL"); |
| 4280 | httpPtr->error = "http request cancelled"; |
| 4281 | |
| 4282 | break; |
| 4283 | |
| 4284 | case NS_SOCK_EXCEPTION: |
| 4285 | |
| 4286 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_EXCEPTION"); |
| 4287 | httpPtr->error = "unexpected http socket exception"; |
| 4288 | |
| 4289 | break; |
| 4290 | |
| 4291 | case NS_SOCK_AGAIN: |
| 4292 | |
| 4293 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_AGAIN"); |
| 4294 | httpPtr->error = "unexpected http EOD"; |
| 4295 | |
| 4296 | break; |
| 4297 | |
| 4298 | case NS_SOCK_DONE: |
| 4299 | |
| 4300 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_DONE doneCallback:(%s)", |
| 4301 | httpPtr->doneCallback != NULL((void*)0) ? httpPtr->doneCallback : "none"); |
| 4302 | |
| 4303 | if (httpPtr->bodyChan != NULL((void*)0)) { |
| 4304 | HttpCutChannel(NULL((void*)0), httpPtr->bodyChan); |
| 4305 | } |
| 4306 | if (httpPtr->spoolChan != NULL((void*)0)) { |
| 4307 | HttpCutChannel(NULL((void*)0), httpPtr->spoolChan); |
| 4308 | } |
| 4309 | if (httpPtr->doneCallback != NULL((void*)0)) { |
| 4310 | HttpDoneCallback(httpPtr); /* Does free on the httpPtr */ |
| 4311 | httpPtr = NULL((void*)0); |
| 4312 | } |
| 4313 | |
| 4314 | break; |
| 4315 | |
| 4316 | case NS_SOCK_NONE: |
| 4317 | |
| 4318 | Ns_Log(Ns_LogTaskDebug, "HttpProc: NS_SOCK_NONE"); |
| 4319 | httpPtr->error = "unexpected http socket state"; |
| 4320 | |
| 4321 | break; |
| 4322 | } |
| 4323 | |
| 4324 | if (httpPtr != NULL((void*)0)) { |
| 4325 | httpPtr->finalSockState = why; |
| 4326 | Ns_Log(Ns_LogTaskDebug, "HttpProc: exit taskDone:%d, finalSockState:%.2x," |
| 4327 | " error:(%s)", taskDone, httpPtr->finalSockState, |
| 4328 | httpPtr->error != NULL((void*)0) ? httpPtr->error : "none"); |
| 4329 | if (taskDone == NS_TRUE1) { |
| 4330 | Ns_GetTime(&httpPtr->etime); |
| 4331 | Ns_TaskDone(httpPtr->task); |
| 4332 | } |
| 4333 | } |
| 4334 | } |
| 4335 | |
| 4336 | |
| 4337 | /* |
| 4338 | *---------------------------------------------------------------------- |
| 4339 | * |
| 4340 | * HttpSpliceChannels -- |
| 4341 | * |
| 4342 | * Convenience wrapper to splice-in body/spool channels |
| 4343 | * in the given interp. |
| 4344 | * |
| 4345 | * Results: |
| 4346 | * None. |
| 4347 | * |
| 4348 | * Side effects: |
| 4349 | * None. |
| 4350 | * |
| 4351 | *---------------------------------------------------------------------- |
| 4352 | */ |
| 4353 | |
| 4354 | static void |
| 4355 | HttpSpliceChannels( |
| 4356 | Tcl_Interp *interp, |
| 4357 | NsHttpTask *httpPtr |
| 4358 | ) { |
| 4359 | if (httpPtr->bodyChan != NULL((void*)0)) { |
| 4360 | HttpSpliceChannel(interp, httpPtr->bodyChan); |
| 4361 | httpPtr->bodyChan = NULL((void*)0); |
| 4362 | } |
| 4363 | if (httpPtr->spoolChan != NULL((void*)0)) { |
| 4364 | HttpSpliceChannel(interp, httpPtr->spoolChan); |
| 4365 | httpPtr->spoolChan = NULL((void*)0); |
| 4366 | } |
| 4367 | } |
| 4368 | |
| 4369 | |
| 4370 | /* |
| 4371 | *---------------------------------------------------------------------- |
| 4372 | * |
| 4373 | * HttpSpliceChannel -- |
| 4374 | * |
| 4375 | * Splice-in the channel in the given interp. |
| 4376 | * |
| 4377 | * Results: |
| 4378 | * Nothing. |
| 4379 | * |
| 4380 | * Side effects: |
| 4381 | * None. |
| 4382 | * |
| 4383 | *---------------------------------------------------------------------- |
| 4384 | */ |
| 4385 | |
| 4386 | static void |
| 4387 | HttpSpliceChannel( |
| 4388 | Tcl_Interp *interp, |
| 4389 | Tcl_Channel chan |
| 4390 | ) { |
| 4391 | Tcl_SpliceChannel(chan); |
| 4392 | |
| 4393 | if (interp != NULL((void*)0)) { |
| 4394 | Tcl_RegisterChannel(interp, chan); |
| 4395 | Tcl_UnregisterChannel((Tcl_Interp *)NULL((void*)0), chan); |
| 4396 | } |
| 4397 | |
| 4398 | Ns_Log(Ns_LogTaskDebug, "HttpSpliceChannel: interp:%p chan:%s", |
| 4399 | (void *)interp, Tcl_GetChannelName(chan)); |
| 4400 | } |
| 4401 | |
| 4402 | |
| 4403 | /* |
| 4404 | *---------------------------------------------------------------------- |
| 4405 | * |
| 4406 | * HttpCutChannel -- |
| 4407 | * |
| 4408 | * Wrapper to cut-out the given channel from the interp/thread. |
| 4409 | * |
| 4410 | * Results: |
| 4411 | * Standard Tcl result. |
| 4412 | * |
| 4413 | * Side effects: |
| 4414 | * None. |
| 4415 | * |
| 4416 | *---------------------------------------------------------------------- |
| 4417 | */ |
| 4418 | |
| 4419 | static int |
| 4420 | HttpCutChannel( |
| 4421 | Tcl_Interp *interp, |
| 4422 | Tcl_Channel chan |
| 4423 | ) { |
| 4424 | int result = TCL_OK0; |
| 4425 | |
| 4426 | if (interp != NULL((void*)0)) { |
| 4427 | if (Tcl_IsChannelShared(chan)) { |
| 4428 | const char *errorMsg = "channel is shared"; |
| 4429 | |
| 4430 | Tcl_SetResult(interp, (char*)errorMsg, TCL_STATIC((Tcl_FreeProc *) 0)); |
| 4431 | result = TCL_ERROR1; |
| 4432 | } else { |
| 4433 | Tcl_DriverWatchProc *watchProc; |
| 4434 | |
| 4435 | /* |
| 4436 | * This effectively disables processing of pending |
| 4437 | * events which are ready to fire for the given |
| 4438 | * channel. If we do not do this, events will hit |
| 4439 | * the detached channel which is potentially being |
| 4440 | * owned by some other thread. This will wreck havoc |
| 4441 | * on our memory and eventually badly hurt us... |
| 4442 | */ |
| 4443 | Tcl_ClearChannelHandlers(chan); |
| 4444 | watchProc = Tcl_ChannelWatchProc(Tcl_GetChannelType(chan)); |
| 4445 | if (watchProc != NULL((void*)0)) { |
| 4446 | (*watchProc)(Tcl_GetChannelInstanceData(chan), 0); |
| 4447 | } |
| 4448 | |
| 4449 | /* |
| 4450 | * Artificially bump the channel reference count |
| 4451 | * which protects us from channel being closed |
| 4452 | * during the Tcl_UnregisterChannel(). |
| 4453 | */ |
| 4454 | Tcl_RegisterChannel((Tcl_Interp *) NULL((void*)0), chan); |
| 4455 | Tcl_UnregisterChannel(interp, chan); |
| 4456 | } |
| 4457 | } |
| 4458 | |
| 4459 | if (result == TCL_OK0) { |
| 4460 | Ns_Log(Ns_LogTaskDebug, "HttpCutChannel: interp:%p chan:%s", |
| 4461 | (void *)interp, Tcl_GetChannelName(chan)); |
| 4462 | Tcl_CutChannel(chan); |
| 4463 | } |
| 4464 | |
| 4465 | return result; |
| 4466 | } |
| 4467 | |
| 4468 | |
| 4469 | /* |
| 4470 | *---------------------------------------------------------------------- |
| 4471 | * |
| 4472 | * HttpTunnel -- |
| 4473 | * |
| 4474 | * Dig a tunnel to the remote host over the given proxy. |
| 4475 | * |
| 4476 | * Results: |
| 4477 | * Socket tunneled to the remote host/port. |
| 4478 | * Should behave as a regular directly connected socket. |
| 4479 | * |
| 4480 | * Side effects: |
| 4481 | * Runs an HTTP task for HTTP/1.1 connection to proxy. |
| 4482 | * |
| 4483 | *---------------------------------------------------------------------- |
| 4484 | */ |
| 4485 | |
| 4486 | static NS_SOCKETint |
| 4487 | HttpTunnel( |
| 4488 | NsInterp *itPtr, |
| 4489 | const char *proxyhost, |
| 4490 | unsigned short proxyport, |
| 4491 | const char *host, |
| 4492 | unsigned short port, |
| 4493 | const Ns_Time *timeout |
| 4494 | ) { |
| 4495 | NsHttpTask *httpPtr; |
| 4496 | Ns_DStringTcl_DString *dsPtr; |
| 4497 | Tcl_Interp *interp; |
| 4498 | |
| 4499 | NS_SOCKETint result = NS_INVALID_SOCKET(-1); |
| 4500 | const char *url = "proxy-tunnel"; /* Not relevant; for logging purposes only */ |
| 4501 | uint64_t requestCount = 0u; |
| 4502 | |
| 4503 | NS_NONNULL_ASSERT(itPtr != NULL)((void) (0)); |
| 4504 | NS_NONNULL_ASSERT(proxyhost != NULL)((void) (0)); |
| 4505 | NS_NONNULL_ASSERT(host != NULL)((void) (0)); |
| 4506 | |
| 4507 | assert(proxyport > 0)((void) (0)); |
| 4508 | assert(port > 0)((void) (0)); |
| 4509 | /* |
| 4510 | * Setup the task structure. From this point on |
| 4511 | * if something goes wrong, we must HttpClose(). |
| 4512 | */ |
| 4513 | httpPtr = ns_calloc(1u, sizeof(NsHttpTask)); |
| 4514 | httpPtr->chunk = ns_calloc(1u, sizeof(NsHttpChunk)); |
| 4515 | httpPtr->bodyFileFd = NS_INVALID_FD(-1); |
| 4516 | httpPtr->spoolFd = NS_INVALID_FD(-1); |
| 4517 | httpPtr->sock = NS_INVALID_SOCKET(-1); |
| 4518 | httpPtr->spoolLimit = -1; |
| 4519 | httpPtr->url = ns_strdup(url); |
| 4520 | httpPtr->flags |= NS_HTTP_FLAG_EMPTY(1u<<5); /* Do not expect response content */ |
| 4521 | httpPtr->method = ns_strdup(connectMethod); |
| 4522 | httpPtr->replyHeaders = Ns_SetCreate(NS_SET_NAME_CLIENT_RESPONSE"clresp"); /* Ignored */ |
| 4523 | httpPtr->servPtr = itPtr->servPtr; |
| 4524 | |
| 4525 | if (timeout != NULL((void*)0)) { |
| 4526 | httpPtr->timeout = ns_calloc(1u, sizeof(Ns_Time)); |
| 4527 | *httpPtr->timeout = *timeout; |
| 4528 | } |
| 4529 | |
| 4530 | Ns_GetTime(&httpPtr->stime); |
| 4531 | |
| 4532 | interp = itPtr->interp; |
| 4533 | dsPtr = &httpPtr->ds; |
| 4534 | Ns_DStringInitTcl_DStringInit(&httpPtr->ds); |
| 4535 | Ns_DStringInitTcl_DStringInit(&httpPtr->chunk->ds); |
| 4536 | |
| 4537 | Ns_MasterLock(); |
| 4538 | requestCount = ++httpClientRequestCount; |
| 4539 | Ns_MasterUnlock(); |
| 4540 | |
| 4541 | Ns_MutexInit(&httpPtr->lock); |
| 4542 | (void)ns_uint64toa(dsPtr->string, requestCount); |
| 4543 | Ns_MutexSetName2(&httpPtr->lock, "ns:httptask", dsPtr->string); |
| 4544 | |
| 4545 | /* |
| 4546 | * Now we are ready to attempt the connection. |
| 4547 | * If no timeout given, assume 10 seconds. |
| 4548 | */ |
| 4549 | |
| 4550 | { |
| 4551 | Ns_ReturnCode rc; |
| 4552 | Ns_Time def = {10, 0}, *toPtr = NULL((void*)0); |
| 4553 | |
| 4554 | Ns_Log(Ns_LogTaskDebug, "HttpTunnel: connecting to proxy [%s]:%hu", |
| 4555 | proxyhost, proxyport); |
| 4556 | |
| 4557 | toPtr = (httpPtr->timeout != NULL((void*)0)) ? httpPtr->timeout : &def; |
| 4558 | httpPtr->sock = Ns_SockTimedConnect2(proxyhost, proxyport, NULL((void*)0), 0, toPtr, &rc); |
| 4559 | if (httpPtr->sock == NS_INVALID_SOCKET(-1)) { |
| 4560 | Ns_SockConnectError(interp, proxyhost, proxyport, rc); |
| 4561 | if (rc == NS_TIMEOUT) { |
| 4562 | HttpClientLogWrite(httpPtr, "connecttimeout"); |
| 4563 | } |
| 4564 | goto fail; |
| 4565 | } |
| 4566 | if (Ns_SockSetNonBlocking(httpPtr->sock) != NS_OK) { |
| 4567 | Ns_TclPrintfResult(interp, "can't set socket nonblocking mode"); |
| 4568 | goto fail; |
| 4569 | } |
| 4570 | rc = HttpWaitForSocketEvent(httpPtr->sock, POLLOUT0x004, httpPtr->timeout); |
| 4571 | if (rc != NS_OK) { |
Similar code here | |
| 4572 | if (rc == NS_TIMEOUT) { |
| 4573 | Ns_TclPrintfResult(interp, "timeout waiting for writable socket"); |
| 4574 | HttpClientLogWrite(httpPtr, "writetimeout"); |
| 4575 | Tcl_SetErrorCode(interp, errorCodeTimeoutString, (char *)0L); |
| 4576 | } else { |
| 4577 | Ns_TclPrintfResult(interp, "waiting for writable socket: %s", |
| 4578 | ns_sockstrerrorstrerror(ns_sockerrno(*__errno_location ()))); |
| 4579 | } |
| 4580 | goto fail; |
| 4581 | } |
| 4582 | } |
| 4583 | |
| 4584 | /* |
| 4585 | * At this point we are connected. |
| 4586 | * Construct CONNECT request line. |
| 4587 | */ |
| 4588 | Ns_DStringSetLengthTcl_DStringSetLength(dsPtr, 0); |
| 4589 | Ns_DStringPrintf(dsPtr, "%s %s:%d HTTP/1.1\r\n", httpPtr->method, host, port); |
| 4590 | Ns_DStringPrintf(dsPtr, "%s: %s:%d\r\n", hostHeader, host, port); |
| 4591 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, "\r\n", 2); |
| 4592 | |
| 4593 | httpPtr->requestLength = (size_t)dsPtr->length; |
| 4594 | httpPtr->next = dsPtr->string; |
| 4595 | |
| 4596 | /* |
| 4597 | * Run the task, on success hijack the socket. |
| 4598 | */ |
| 4599 | httpPtr->task = Ns_TaskCreate(httpPtr->sock, HttpProc, httpPtr); |
| 4600 | Ns_TaskRun(httpPtr->task); |
| 4601 | if (httpPtr->status == 200) { |
| 4602 | result = httpPtr->sock; |
| 4603 | httpPtr->sock = NS_INVALID_SOCKET(-1); |
| 4604 | } else { |
| 4605 | Ns_TclPrintfResult(interp, "can't open http tunnel, response status: %d", |
| 4606 | httpPtr->status); |
| 4607 | } |
| 4608 | |
| 4609 | fail: |
| 4610 | HttpClose(httpPtr); |
| 4611 | return result; |
| 4612 | } |
| 4613 | |
| 4614 | |
| 4615 | /* |
| 4616 | *---------------------------------------------------------------------- |
| 4617 | * |
| 4618 | * ParseCRProc -- |
| 4619 | * |
| 4620 | * Handler for chunked-encoding state machine that parses |
| 4621 | * the chunk framing element CR. |
| 4622 | * |
| 4623 | * Results: |
| 4624 | * TCL_OK: CR element parsed OK |
| 4625 | * TCL_ERROR: error in chunked format |
| 4626 | * TCL_BREAK; not enough data (stop parsing but remain in state) |
| 4627 | * |
| 4628 | * Side effects: |
| 4629 | * None. |
| 4630 | * |
| 4631 | *---------------------------------------------------------------------- |
| 4632 | */ |
| 4633 | |
| 4634 | static int |
| 4635 | ParseCRProc( |
| 4636 | NsHttpTask *UNUSED(httpPtr)UNUSED_httpPtr __attribute__((__unused__)), |
| 4637 | char **buffer, |
| 4638 | size_t *size |
| 4639 | ) { |
| 4640 | char *buf = *buffer; |
| 4641 | int result = TCL_OK0; |
| 4642 | size_t len = *size; |
| 4643 | |
| 4644 | Ns_Log(Ns_LogTaskDebug, "--- ParseCRProc char %c len %lu", *buf, len); |
| 4645 | |
| 4646 | if (len == 0) { |
| 4647 | result = TCL_BREAK3; |
| 4648 | } else if (*(buf) == '\r') { |
| 4649 | len--; |
| 4650 | buf++; |
| 4651 | } else { |
| 4652 | result = TCL_ERROR1; |
| 4653 | } |
| 4654 | |
| 4655 | if (result != TCL_ERROR1) { |
| 4656 | *buffer = buf; |
| 4657 | *size = len; |
| 4658 | } |
| 4659 | |
| 4660 | return result; |
| 4661 | } |
| 4662 | |
| 4663 | |
| 4664 | /* |
| 4665 | *---------------------------------------------------------------------- |
| 4666 | * |
| 4667 | * ParseLFProc |
| 4668 | * |
| 4669 | * Handler for chunked-encoding state machine that parses |
| 4670 | * the chunk framing element LF. |
| 4671 | * |
| 4672 | * Results: |
| 4673 | * TCL_OK: CR element parsed OK |
| 4674 | * TCL_ERROR: error in chunked format |
| 4675 | * TCL_BREAK; not enough data (stop parsing but remain in state) |
| 4676 | * |
| 4677 | * Side effects: |
| 4678 | * None. |
| 4679 | * |
| 4680 | *---------------------------------------------------------------------- |
| 4681 | */ |
| 4682 | |
| 4683 | static int |
| 4684 | ParseLFProc( |
| 4685 | NsHttpTask *UNUSED(httpPtr)UNUSED_httpPtr __attribute__((__unused__)), |
| 4686 | char **buffer, |
| 4687 | size_t *size |
| 4688 | ) { |
| 4689 | char *buf = *buffer; |
| 4690 | int result = TCL_OK0; |
| 4691 | size_t len = *size; |
| 4692 | |
| 4693 | Ns_Log(Ns_LogTaskDebug, "--- ParseLFProc"); |
| 4694 | |
| 4695 | if (len == 0) { |
| 4696 | result = TCL_BREAK3; |
| 4697 | } else if (*(buf) == '\n') { |
| 4698 | len--; |
| 4699 | buf++; |
| 4700 | } else { |
| 4701 | result = TCL_ERROR1; |
| 4702 | } |
| 4703 | |
| 4704 | if (result != TCL_ERROR1) { |
| 4705 | *buffer = buf; |
| 4706 | *size = len; |
| 4707 | } |
| 4708 | |
| 4709 | return result; |
| 4710 | } |
| 4711 | |
| 4712 | |
| 4713 | /* |
| 4714 | *---------------------------------------------------------------------- |
| 4715 | * |
| 4716 | * ParseLengthProc -- |
| 4717 | * |
| 4718 | * Handler for chunked-encoding state machine that parses |
| 4719 | * the chunk length/size element. |
| 4720 | * |
| 4721 | * Results: |
| 4722 | * TCL_OK: size element parsed OK |
| 4723 | * TCL_ERROR: error in chunked format |
| 4724 | * TCL_BREAK; not enough data (stop parsing but remain in state) |
| 4725 | * |
| 4726 | * Side effects: |
| 4727 | * None. |
| 4728 | * |
| 4729 | *---------------------------------------------------------------------- |
| 4730 | */ |
| 4731 | |
| 4732 | static int |
| 4733 | ParseLengthProc( |
| 4734 | NsHttpTask *httpPtr, |
| 4735 | char **buffer, |
| 4736 | size_t *size |
| 4737 | ) { |
| 4738 | char *buf = *buffer; |
| 4739 | int result = TCL_OK0; |
| 4740 | size_t len = *size; |
| 4741 | NsHttpChunk *chunkPtr = httpPtr->chunk; |
| 4742 | Tcl_DString *dsPtr = &chunkPtr->ds; |
| 4743 | |
| 4744 | Ns_Log(Ns_LogTaskDebug, "--- ParseLengthProc"); |
| 4745 | |
| 4746 | /* |
| 4747 | * Collect all that looks as a hex digit |
| 4748 | */ |
| 4749 | while (len > 0 && *(buf) > 0 && isxdigit(*(buf))((*__ctype_b_loc ())[(int) ((*(buf)))] & (unsigned short int ) _ISxdigit)) { |
| 4750 | Tcl_DStringAppend(dsPtr, buf, 1); |
| 4751 | len--; |
| 4752 | buf++; |
| 4753 | } |
| 4754 | |
| 4755 | if (len == 0) { |
| 4756 | result = TCL_BREAK3; |
| 4757 | } else { |
| 4758 | Tcl_WideInt cl = 0; |
| 4759 | if (Ns_StrToWideInt(dsPtr->string, &cl) != NS_OK || cl < 0) { |
| 4760 | result = TCL_ERROR1; |
| 4761 | } else { |
| 4762 | chunkPtr->length = (size_t)cl; |
| 4763 | |
| 4764 | /* |
| 4765 | * According to the RFC, the chunk size may be followed |
| 4766 | * by a variable number of chunk extensions, separated |
| 4767 | * by a semicolon, up to the terminating frame delimiter. |
| 4768 | * For the time being, we simply discard extensions. |
| 4769 | * We might possibly declare a special parser proc for this. |
| 4770 | */ |
| 4771 | while (len > 0 && *(buf) > 0 && *(buf) != '\r') { |
| 4772 | len--; |
| 4773 | buf++; |
| 4774 | } |
| 4775 | } |
| 4776 | } |
| 4777 | |
| 4778 | if (result != TCL_ERROR1) { |
| 4779 | *buffer = buf; |
| 4780 | *size = len; |
| 4781 | } |
| 4782 | |
| 4783 | return result; |
| 4784 | } |
| 4785 | |
| 4786 | |
| 4787 | /* |
| 4788 | *---------------------------------------------------------------------- |
| 4789 | * |
| 4790 | * ParseBodyProc -- |
| 4791 | * |
| 4792 | * Handler for chunked-encoding state machine that parses |
| 4793 | * the chunk body. |
| 4794 | * |
| 4795 | * Results: |
| 4796 | * TCL_OK: body parsed OK |
| 4797 | * TCL_ERROR: error in chunked format |
| 4798 | * TCL_BREAK: stop/reset state machine (no data or on last chunk) |
| 4799 | * |
| 4800 | * Side effects: |
| 4801 | * May change state of the parsing state machine. |
| 4802 | * |
| 4803 | *---------------------------------------------------------------------- |
| 4804 | */ |
| 4805 | |
| 4806 | static int |
| 4807 | ParseBodyProc( |
| 4808 | NsHttpTask *httpPtr, |
| 4809 | char **buffer, |
| 4810 | size_t *size |
| 4811 | ) { |
| 4812 | char *buf = *buffer; |
| 4813 | int result = TCL_OK0; |
| 4814 | size_t len = *size; |
| 4815 | NsHttpChunk *chunkPtr = httpPtr->chunk; |
| 4816 | |
| 4817 | Ns_Log(Ns_LogTaskDebug, "--- ParseBodyProc"); |
| 4818 | |
| 4819 | if (chunkPtr->length == 0) { |
| 4820 | Ns_Set *headersPtr; |
| 4821 | const char *trailer; |
| 4822 | |
| 4823 | /* |
| 4824 | * We are on the last chunk. Check if we will get some |
| 4825 | * trailers and switch the state accordingly. |
| 4826 | */ |
| 4827 | headersPtr = httpPtr->replyHeaders; |
| 4828 | trailer = Ns_SetIGet(headersPtr, trailersHeader); |
| 4829 | if (trailer != NULL((void*)0)) { |
| 4830 | chunkPtr->parsers = TrailerParsers; |
| 4831 | } else { |
| 4832 | chunkPtr->parsers = EndParsers; |
| 4833 | } |
| 4834 | |
| 4835 | chunkPtr->callx = 0; |
| 4836 | result = TCL_BREAK3; |
| 4837 | |
| 4838 | } else if (len == 0) { |
| 4839 | result = TCL_BREAK3; |
| 4840 | } else { |
| 4841 | size_t remain, append; |
| 4842 | |
| 4843 | remain = chunkPtr->length - chunkPtr->got; |
| 4844 | append = remain < len ? remain : len; |
| 4845 | |
| 4846 | if (append > 0) { |
| 4847 | HttpAppendBuffer(httpPtr, (const char*)buf, append); |
| 4848 | chunkPtr->got += append; |
| 4849 | len -= append; |
| 4850 | buf += append; |
| 4851 | remain -= append; |
| 4852 | } |
| 4853 | |
| 4854 | if (remain > 0 && len == 0) { |
| 4855 | |
| 4856 | /* |
| 4857 | * Not enough data in the passed buffer to |
| 4858 | * consume whole chunk, break state parsing |
| 4859 | * but remain in the current state and go |
| 4860 | * and get new blocks from the source. |
| 4861 | */ |
| 4862 | result = TCL_BREAK3; |
| 4863 | } |
| 4864 | } |
| 4865 | |
| 4866 | if (result != TCL_ERROR1) { |
| 4867 | *buffer = buf; |
| 4868 | *size = len; |
| 4869 | } |
| 4870 | |
| 4871 | return result; |
| 4872 | } |
| 4873 | |
| 4874 | |
| 4875 | /* |
| 4876 | *---------------------------------------------------------------------- |
| 4877 | * |
| 4878 | * ParseTrailerProc -- |
| 4879 | * |
| 4880 | * Handler for chunked-encoding state machine that parses |
| 4881 | * optional trailers. Trailers look like regular headers |
| 4882 | * (string)(crlf). |
| 4883 | * |
| 4884 | * |
| 4885 | * Results: |
| 4886 | * TCL_OK: trailer parsed OK |
| 4887 | * TCL_ERROR: error in chunked format |
| 4888 | * TCL_BREAK: stop state machine, last trailer encountered |
| 4889 | * |
| 4890 | * Side effects: |
| 4891 | * None. |
| 4892 | * |
| 4893 | *---------------------------------------------------------------------- |
| 4894 | */ |
| 4895 | |
| 4896 | static int |
| 4897 | ParseTrailerProc( |
| 4898 | NsHttpTask *httpPtr, |
| 4899 | char **buffer, |
| 4900 | size_t *size |
| 4901 | ) { |
| 4902 | char *buf = *buffer; |
| 4903 | int result = TCL_OK0; |
| 4904 | size_t len = *size; |
| 4905 | NsHttpChunk *chunkPtr = httpPtr->chunk; |
| 4906 | Tcl_DString *dsPtr = &chunkPtr->ds; |
| 4907 | |
| 4908 | while (len > 0 && *(buf) > 0 && *(buf) != '\r') { |
| 4909 | Tcl_DStringAppend(dsPtr, buf, 1); |
| 4910 | len--; |
| 4911 | buf++; |
| 4912 | } |
| 4913 | |
| 4914 | if (len == 0) { |
| 4915 | result = TCL_BREAK3; |
| 4916 | } else if (*(buf) == '\r') { |
| 4917 | if (dsPtr->length == 0) { |
| 4918 | |
| 4919 | /* |
| 4920 | * This was the last header (== o header, zero-size) |
| 4921 | */ |
| 4922 | chunkPtr->parsers = EndParsers; |
| 4923 | chunkPtr->callx = 0; |
| 4924 | result = TCL_BREAK3; |
| 4925 | } else { |
| 4926 | Ns_Set *headersPtr = httpPtr->replyHeaders; |
| 4927 | char *trailer = dsPtr->string; |
| 4928 | |
| 4929 | if (Ns_ParseHeader(headersPtr, trailer, NULL((void*)0), ToLower, NULL((void*)0)) != NS_OK) { |
| 4930 | result = TCL_ERROR1; |
| 4931 | } |
| 4932 | } |
| 4933 | } else { |
| 4934 | result = TCL_ERROR1; |
| 4935 | } |
| 4936 | |
| 4937 | if (result != TCL_ERROR1) { |
| 4938 | *buffer = buf; |
| 4939 | *size = len; |
| 4940 | } |
| 4941 | |
| 4942 | return result; |
| 4943 | } |
| 4944 | |
| 4945 | |
| 4946 | /* |
| 4947 | *---------------------------------------------------------------------- |
| 4948 | * |
| 4949 | * ParseEndProc -- |
| 4950 | * |
| 4951 | * Handler for chunked-encoding state machine that terminates |
| 4952 | * chunk parsing state. |
| 4953 | * |
| 4954 | * Results: |
| 4955 | * TCL_BREAK |
| 4956 | * |
| 4957 | * Side effects: |
| 4958 | * None. |
| 4959 | * |
| 4960 | *---------------------------------------------------------------------- |
| 4961 | */ |
| 4962 | |
| 4963 | static int |
| 4964 | ParseEndProc( |
| 4965 | NsHttpTask *httpPtr, |
| 4966 | char **UNUSED(buffer)UNUSED_buffer __attribute__((__unused__)), |
| 4967 | size_t *size |
| 4968 | ) { |
| 4969 | *size = 0; |
| 4970 | httpPtr->flags |= NS_HTTP_FLAG_CHUNKED_END(1u<<3); |
| 4971 | |
| 4972 | return TCL_BREAK3; |
| 4973 | } |
| 4974 | |
| 4975 | |
| 4976 | /* |
| 4977 | *---------------------------------------------------------------------- |
| 4978 | * |
| 4979 | * ChunkInitProc -- |
| 4980 | * |
| 4981 | * Handler for chunked-encoding state machine that initializes |
| 4982 | * chunk parsing state. |
| 4983 | * |
| 4984 | * Results: |
| 4985 | * TCL_OK |
| 4986 | * |
| 4987 | * Side effects: |
| 4988 | * None. |
| 4989 | * |
| 4990 | *---------------------------------------------------------------------- |
| 4991 | */ |
| 4992 | |
| 4993 | static int |
| 4994 | ChunkInitProc( |
| 4995 | NsHttpTask *httpPtr, |
| 4996 | char **UNUSED(buffer)UNUSED_buffer __attribute__((__unused__)), |
| 4997 | size_t *UNUSED(size)UNUSED_size __attribute__((__unused__)) |
| 4998 | ) { |
| 4999 | NsHttpChunk *chunkPtr = httpPtr->chunk; |
| 5000 | Tcl_DString *dsPtr = &chunkPtr->ds; |
| 5001 | |
| 5002 | Ns_Log(Ns_LogTaskDebug, "--- ChunkInitProc"); |
| 5003 | |
| 5004 | chunkPtr->length = 0; |
| 5005 | chunkPtr->got = 0; |
| 5006 | Tcl_DStringSetLength(dsPtr, 0); |
| 5007 | Tcl_DStringAppend(dsPtr, "0x", 2); |
| 5008 | |
| 5009 | return TCL_OK0; |
| 5010 | } |
| 5011 | |
| 5012 | |
| 5013 | /* |
| 5014 | *---------------------------------------------------------------------- |
| 5015 | * |
| 5016 | * TrailerInitProc -- |
| 5017 | * |
| 5018 | * Handler for chunked-encoding state machine that initializes |
| 5019 | * trailers parsing |
| 5020 | * |
| 5021 | * Results: |
| 5022 | * TCL_OK always |
| 5023 | * |
| 5024 | * Side effects: |
| 5025 | * None. |
| 5026 | * |
| 5027 | *---------------------------------------------------------------------- |
| 5028 | */ |
| 5029 | |
| 5030 | static int |
| 5031 | TrailerInitProc( |
| 5032 | NsHttpTask *httpPtr, |
| 5033 | char **UNUSED(buffer)UNUSED_buffer __attribute__((__unused__)), |
| 5034 | size_t *UNUSED(size)UNUSED_size __attribute__((__unused__)) |
| 5035 | ) { |
| 5036 | NsHttpChunk *chunkPtr = httpPtr->chunk; |
| 5037 | Tcl_DString *dsPtr = &chunkPtr->ds; |
| 5038 | |
| 5039 | Tcl_DStringSetLength(dsPtr, 0); |
| 5040 | |
| 5041 | return TCL_OK0; |
| 5042 | } |
| 5043 | |
| 5044 | /* |
| 5045 | * Local Variables: |
| 5046 | * mode: c |
| 5047 | * c-basic-offset: 4 |
| 5048 | * fill-column: 78 |
| 5049 | * indent-tabs-mode: nil |
| 5050 | * eval: (c-guess) |
| 5051 | * End: |
| 5052 | */ |