| File: | d/connchan.c |
| Warning: | line 1109, column 13 Duplicate code detected |
| Note: | line 1253, column 13 Similar code here |
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| 1 | /* |
| 2 | * The contents of this file are subject to the Mozilla 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://mozilla.org/. |
| 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 | * Alternatively, the contents of this file may be used under the terms |
| 13 | * of the GNU General Public License (the "GPL"), in which case the |
| 14 | * provisions of GPL are applicable instead of those above. If you wish |
| 15 | * to allow use of your version of this file only under the terms of the |
| 16 | * GPL and not to allow others to use your version of this file under the |
| 17 | * License, indicate your decision by deleting the provisions above and |
| 18 | * replace them with the notice and other provisions required by the GPL. |
| 19 | * If you do not delete the provisions above, a recipient may use your |
| 20 | * version of this file under either the License or the GPL. |
| 21 | */ |
| 22 | |
| 23 | /* |
| 24 | * connchan.c -- |
| 25 | * |
| 26 | * Support functions for connection channels |
| 27 | */ |
| 28 | |
| 29 | #include "nsd.h" |
| 30 | |
| 31 | #ifdef HAVE_OPENSSL_EVP_H1 |
| 32 | # include "nsopenssl.h" |
| 33 | # include <openssl/rand.h> |
| 34 | #endif |
| 35 | |
| 36 | /* |
| 37 | * Handling of network byte order (big endian). |
| 38 | */ |
| 39 | #if defined(__linux__1) |
| 40 | # include <endian.h> |
| 41 | #elif defined(__FreeBSD__) || defined(__NetBSD__) |
| 42 | # include <sys/endian.h> |
| 43 | #elif defined(__OpenBSD__) |
| 44 | # include <sys/types.h> |
| 45 | # ifndef be16toh |
| 46 | # define be16toh(x)__bswap_16 (x) betoh16(x) |
| 47 | # define be32toh(x)__bswap_32 (x) betoh32(x) |
| 48 | # define be64toh(x)__bswap_64 (x) betoh64(x) |
| 49 | # endif |
| 50 | #elif defined(__APPLE__) || defined(_WIN32) |
| 51 | # define be16toh(x)__bswap_16 (x) ntohs(x)__bswap_16 (x) |
| 52 | # define htobe16(x)__bswap_16 (x) htons(x)__bswap_16 (x) |
| 53 | # define be32toh(x)__bswap_32 (x) ntonl(x) |
| 54 | # define htobe32(x)__bswap_32 (x) htonl(x)__bswap_32 (x) |
| 55 | # if defined(_WIN32) |
| 56 | /* |
| 57 | * Not sure, why htonll() and ntohll() are undefined in Visual Studio 2019: |
| 58 | * |
| 59 | *# define be64toh(x) ntohll(x) |
| 60 | *# define htobe64(x) htonll(x) |
| 61 | */ |
| 62 | # define htobe64(x)__bswap_64 (x) ((1==htonl(1)__bswap_32 (1)) ? (x) : (((uint64_t)htonl((x) & 0xFFFFFFFFUL)__bswap_32 ((x) & 0xFFFFFFFFUL)) << 32) | htonl((uint32_t)((x) >> 32))__bswap_32 ((uint32_t)((x) >> 32))) |
| 63 | # define be64toh(x)__bswap_64 (x) ((1==ntohl(1)__bswap_32 (1)) ? (x) : (((uint64_t)ntohl((x) & 0xFFFFFFFFUL)__bswap_32 ((x) & 0xFFFFFFFFUL)) << 32) | ntohl((uint32_t)((x) >> 32))__bswap_32 ((uint32_t)((x) >> 32))) |
| 64 | # else |
| 65 | # define be64toh(x)__bswap_64 (x) ntohll(x) |
| 66 | # define htobe64(x)__bswap_64 (x) htonll(x) |
| 67 | # endif |
| 68 | #endif |
| 69 | |
| 70 | /* |
| 71 | * Structure handling one registered channel for the [ns_connchan] |
| 72 | * command. |
| 73 | */ |
| 74 | typedef struct { |
| 75 | const char *channelName; |
| 76 | char peer[NS_IPADDR_SIZE46]; /* Client peer address */ |
| 77 | size_t rBytes; |
| 78 | size_t wBytes; |
| 79 | bool_Bool binary; |
| 80 | Ns_Time startTime; |
| 81 | Sock *sockPtr; |
| 82 | Ns_Time recvTimeout; |
| 83 | Ns_Time sendTimeout; |
| 84 | const char *clientData; |
| 85 | struct Callback *cbPtr; |
| 86 | Tcl_DString *sendBuffer; /* For unsent bytes in "ns_connchan write -buffered" */ |
| 87 | Tcl_DString *frameBuffer; /* Buffer of for a single WebSocket frame */ |
| 88 | Tcl_DString *fragmentsBuffer; /* Buffer for multiple WebSocket segments */ |
| 89 | int fragmentsOpcode; /* Opcode of the first WebSocket segment */ |
| 90 | bool_Bool frameNeedsData; /* Indicator, if additional reads are required */ |
| 91 | } NsConnChan; |
| 92 | |
| 93 | #define ConnChanBufferSize(connChanPtr, buf)((connChanPtr)->buf != ((void*)0) ? (connChanPtr)->buf-> length : 0) ((connChanPtr)->buf != NULL((void*)0) ? (connChanPtr)->buf->length : 0) |
| 94 | |
| 95 | typedef struct Callback { |
| 96 | NsConnChan *connChanPtr; |
| 97 | const char *threadName; |
| 98 | unsigned int when; |
| 99 | size_t scriptLength; |
| 100 | size_t scriptCmdNameLength; |
| 101 | char script[1]; |
| 102 | } Callback; |
| 103 | |
| 104 | /* |
| 105 | * The following structure is used for a socket listen callback. |
| 106 | */ |
| 107 | |
| 108 | typedef struct ListenCallback { |
| 109 | const char *server; |
| 110 | const char *driverName; |
| 111 | char script[1]; |
| 112 | } ListenCallback; |
| 113 | |
| 114 | |
| 115 | /* |
| 116 | * Local functions defined in this file |
| 117 | */ |
| 118 | static Ns_ArgProc ArgProc; |
| 119 | |
| 120 | static void CancelCallback(const NsConnChan *connChanPtr) |
| 121 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 122 | |
| 123 | static NsConnChan *ConnChanCreate(NsServer *servPtr, Sock *sockPtr, |
| 124 | const Ns_Time *startTime, const char *peer, bool_Bool binary, |
| 125 | const char *clientData) |
| 126 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))) NS_GNUC_NONNULL(3)__attribute__((__nonnull__(3))) |
| 127 | NS_GNUC_RETURNS_NONNULL; |
| 128 | |
| 129 | static void ConnChanFree(NsConnChan *connChanPtr, NsServer *servPtr) |
| 130 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 131 | |
| 132 | static ssize_t ConnChanReadBuffer(NsConnChan *connChanPtr, char *buffer, size_t bufferSize) |
| 133 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 134 | |
| 135 | static NsConnChan *ConnChanGet(Tcl_Interp *interp, NsServer *servPtr, const char *name) |
| 136 | NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))) NS_GNUC_NONNULL(3)__attribute__((__nonnull__(3))); |
| 137 | |
| 138 | static Ns_ReturnCode SockCallbackRegister(NsConnChan *connChanPtr, const char *script, |
| 139 | unsigned int when, const Ns_Time *timeoutPtr) |
| 140 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))); |
| 141 | |
| 142 | static ssize_t ConnchanDriverSend(Tcl_Interp *interp, const NsConnChan *connChanPtr, |
| 143 | struct iovec *bufs, int nbufs, unsigned int flags, |
| 144 | const Ns_Time *timeoutPtr |
| 145 | ) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(2)__attribute__((__nonnull__(2))) NS_GNUC_NONNULL(6)__attribute__((__nonnull__(6))); |
| 146 | |
| 147 | static char *WhenToString(char *buffer, unsigned int when) |
| 148 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 149 | |
| 150 | static bool_Bool SockListenCallback(NS_SOCKETint sock, void *arg, unsigned int UNUSED(why)UNUSED_why __attribute__((__unused__))); |
| 151 | static void RequireDsBuffer(Tcl_DString **dsPtr) NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))); |
| 152 | static void WebsocketFrameSetCommonMembers(Tcl_Obj *resultObj, ssize_t nRead, const NsConnChan *connChanPtr) |
| 153 | NS_GNUC_NONNULL(1)__attribute__((__nonnull__(1))) NS_GNUC_NONNULL(3)__attribute__((__nonnull__(3))); |
| 154 | |
| 155 | static Ns_SockProc NsTclConnChanProc; |
| 156 | |
| 157 | static Tcl_ObjCmdProc ConnChanCallbackObjCmd; |
| 158 | static Tcl_ObjCmdProc ConnChanCloseObjCmd; |
| 159 | static Tcl_ObjCmdProc ConnChanDetachObjCmd; |
| 160 | static Tcl_ObjCmdProc ConnChanExistsObjCmd; |
| 161 | static Tcl_ObjCmdProc ConnChanListObjCmd; |
| 162 | static Tcl_ObjCmdProc ConnChanListenObjCmd; |
| 163 | static Tcl_ObjCmdProc ConnChanOpenObjCmd; |
| 164 | static Tcl_ObjCmdProc ConnChanReadObjCmd; |
| 165 | static Tcl_ObjCmdProc ConnChanWriteObjCmd; |
| 166 | static Tcl_ObjCmdProc ConnChanWsencodeObjCmd; |
| 167 | |
| 168 | static Ns_SockProc CallbackFree; |
| 169 | |
| 170 | |
| 171 | |
| 172 | /* |
| 173 | *---------------------------------------------------------------------- |
| 174 | * |
| 175 | * WhenToString -- |
| 176 | * |
| 177 | * Convert socket condition to character string. The provided |
| 178 | * input buffer has to be at least 5 bytes long. |
| 179 | * |
| 180 | * Results: |
| 181 | * Pretty string. |
| 182 | * |
| 183 | * Side effects: |
| 184 | * None. |
| 185 | * |
| 186 | *---------------------------------------------------------------------- |
| 187 | */ |
| 188 | static char* |
| 189 | WhenToString(char *buffer, unsigned int when) { |
| 190 | char *p = buffer; |
| 191 | |
| 192 | NS_NONNULL_ASSERT(buffer != NULL)((void) (0)); |
| 193 | |
| 194 | if ((when & (unsigned int)NS_SOCK_READ) != 0u) { |
| 195 | *p++ = 'r'; |
| 196 | } |
| 197 | if ((when & (unsigned int)NS_SOCK_WRITE) != 0u) { |
| 198 | *p++ = 'w'; |
| 199 | } |
| 200 | if ((when & (unsigned int)NS_SOCK_EXCEPTION) != 0u) { |
| 201 | *p++ = 'e'; |
| 202 | } |
| 203 | if ((when & (unsigned int)NS_SOCK_EXIT) != 0u) { |
| 204 | *p++ = 'x'; |
| 205 | } |
| 206 | *p = '\0'; |
| 207 | |
| 208 | return buffer; |
| 209 | } |
| 210 | |
| 211 | |
| 212 | /* |
| 213 | *---------------------------------------------------------------------- |
| 214 | * |
| 215 | * CallbackFree -- |
| 216 | * |
| 217 | * Free Callback structure and unregister socket callback. |
| 218 | * |
| 219 | * Results: |
| 220 | * None. |
| 221 | * |
| 222 | * Side effects: |
| 223 | * Freeing memory. |
| 224 | * |
| 225 | *---------------------------------------------------------------------- |
| 226 | */ |
| 227 | |
| 228 | static bool_Bool |
| 229 | CallbackFree(NS_SOCKETint UNUSED(sock)UNUSED_sock __attribute__((__unused__)), void *arg, unsigned int why) { |
| 230 | bool_Bool result; |
| 231 | |
| 232 | if (why != (unsigned int)NS_SOCK_CANCEL) { |
| 233 | Ns_Log(Warning, "connchan CallbackFree called with unexpected reason code %u", |
| 234 | why); |
| 235 | result = NS_FALSE0; |
| 236 | |
| 237 | } else { |
| 238 | Callback *cbPtr = arg; |
| 239 | |
| 240 | Ns_Log(Ns_LogConnchanDebug, "connchan: callbackCallbackFree cbPtr %p why %u", |
| 241 | (void*)cbPtr, why); |
| 242 | ns_free(cbPtr); |
| 243 | result = NS_TRUE1; |
| 244 | } |
| 245 | |
| 246 | return result; |
| 247 | } |
| 248 | |
| 249 | |
| 250 | /* |
| 251 | *---------------------------------------------------------------------- |
| 252 | * |
| 253 | * CancelCallback -- |
| 254 | * |
| 255 | * Register socket callback cancel operation for unregistering |
| 256 | * the socket callback. Freeing is itself implemented as a |
| 257 | * callback (Ns_SockProc), which is called, whenever a callback |
| 258 | * is freed from the socket thread. Not that it is necessary to |
| 259 | * implement it as a callback, since all sock callbacks are |
| 260 | * implemented via a queue operation (in sockcallback.c). |
| 261 | * |
| 262 | * Results: |
| 263 | * None. |
| 264 | * |
| 265 | * Side effects: |
| 266 | * Freeing memory. |
| 267 | * |
| 268 | *---------------------------------------------------------------------- |
| 269 | */ |
| 270 | |
| 271 | static void |
| 272 | CancelCallback(const NsConnChan *connChanPtr) |
| 273 | { |
| 274 | NS_NONNULL_ASSERT(connChanPtr != NULL)((void) (0)); |
| 275 | NS_NONNULL_ASSERT(connChanPtr->cbPtr != NULL)((void) (0)); |
| 276 | |
| 277 | Ns_Log(Ns_LogConnchanDebug, "%s connchan: CancelCallback %p", |
| 278 | connChanPtr->channelName, (void*)connChanPtr->cbPtr); |
| 279 | |
| 280 | (void)Ns_SockCancelCallbackEx(connChanPtr->sockPtr->sock, CallbackFree, |
| 281 | connChanPtr->cbPtr, NULL((void*)0)); |
| 282 | } |
| 283 | |
| 284 | |
| 285 | /* |
| 286 | *---------------------------------------------------------------------- |
| 287 | * |
| 288 | * ConnChanCreate -- |
| 289 | * |
| 290 | * Allocate a connection channel structure and initialize its |
| 291 | * fields. When the passed-in peer is NULL, determine peerAddr |
| 292 | * from the sockPtr. |
| 293 | * |
| 294 | * Results: |
| 295 | * Initialized connection channel structure. |
| 296 | * |
| 297 | * Side effects: |
| 298 | * Allocating memory. |
| 299 | * |
| 300 | *---------------------------------------------------------------------- |
| 301 | */ |
| 302 | static NsConnChan * |
| 303 | ConnChanCreate(NsServer *servPtr, Sock *sockPtr, |
| 304 | const Ns_Time *startTime, const char *peer, bool_Bool binary, |
| 305 | const char *clientData) { |
| 306 | static uint64_t connchanCount = 0u; |
| 307 | NsConnChan *connChanPtr; |
| 308 | Tcl_HashEntry *hPtr; |
| 309 | char name[5 + TCL_INTEGER_SPACE24]; |
| 310 | int isNew; |
| 311 | |
| 312 | NS_NONNULL_ASSERT(servPtr != NULL)((void) (0)); |
| 313 | NS_NONNULL_ASSERT(sockPtr != NULL)((void) (0)); |
| 314 | NS_NONNULL_ASSERT(startTime != NULL)((void) (0)); |
| 315 | |
| 316 | Ns_SockSetKeepalive(sockPtr->sock, 1); |
| 317 | |
| 318 | /* |
| 319 | * Create a new NsConnChan structure and fill in the elements, |
| 320 | * which can be set without a lock. The intention is to keep the |
| 321 | * lock-times low. |
| 322 | */ |
| 323 | |
| 324 | connChanPtr = ns_malloc(sizeof(NsConnChan)); |
| 325 | connChanPtr->cbPtr = NULL((void*)0); |
| 326 | connChanPtr->startTime = *startTime; |
| 327 | connChanPtr->rBytes = 0; |
| 328 | connChanPtr->wBytes = 0; |
| 329 | connChanPtr->recvTimeout.sec = 0; |
| 330 | connChanPtr->recvTimeout.usec = 0; |
| 331 | connChanPtr->sendTimeout.sec = 0; |
| 332 | connChanPtr->sendTimeout.usec = 0; |
| 333 | connChanPtr->clientData = clientData != NULL((void*)0) ? ns_strdup(clientData) : NULL((void*)0); |
| 334 | connChanPtr->sendBuffer = NULL((void*)0); |
| 335 | connChanPtr->frameBuffer = NULL((void*)0); |
| 336 | connChanPtr->fragmentsBuffer = NULL((void*)0); |
| 337 | connChanPtr->frameNeedsData = NS_TRUE1; |
| 338 | |
| 339 | if (peer == NULL((void*)0)) { |
| 340 | (void)ns_inet_ntop((struct sockaddr *)&(sockPtr->sa), connChanPtr->peer, NS_IPADDR_SIZE46); |
| 341 | } else { |
| 342 | strncpy(connChanPtr->peer, peer, NS_IPADDR_SIZE46 - 1); |
| 343 | } |
| 344 | connChanPtr->sockPtr = sockPtr; |
| 345 | connChanPtr->binary = binary; |
| 346 | memcpy(name, "conn", 4); |
| 347 | |
| 348 | /* |
| 349 | * Lock the channel table and create a new entry in the hash table |
| 350 | * for the connection. The counter-based name creation requires a |
| 351 | * lock to guarantee unique names. |
| 352 | */ |
| 353 | Ns_RWLockWrLock(&servPtr->connchans.lock); |
| 354 | (void)ns_uint64toa(&name[4], connchanCount ++); |
| 355 | hPtr = Tcl_CreateHashEntry(&servPtr->connchans.table, name, &isNew)(*((&servPtr->connchans.table)->createProc))(&servPtr ->connchans.table, (const char *)(name), &isNew); |
| 356 | |
| 357 | if (unlikely(isNew == 0)(__builtin_expect((isNew == 0), 0))) { |
| 358 | Ns_Log(Warning, "duplicate connchan name '%s'", name); |
| 359 | } |
| 360 | |
| 361 | Tcl_SetHashValue(hPtr, connChanPtr)((hPtr)->clientData = (ClientData) (connChanPtr)); |
| 362 | |
| 363 | connChanPtr->channelName = ns_strdup(name); |
| 364 | Ns_RWLockUnlock(&servPtr->connchans.lock); |
| 365 | |
| 366 | return connChanPtr; |
| 367 | } |
| 368 | |
| 369 | |
| 370 | /* |
| 371 | *---------------------------------------------------------------------- |
| 372 | * |
| 373 | * ConnChanFree -- |
| 374 | * |
| 375 | * Free NsConnChan structure and remove the entry from the hash |
| 376 | * table of open connection channel structures. |
| 377 | * |
| 378 | * Results: |
| 379 | * None. |
| 380 | * |
| 381 | * Side effects: |
| 382 | * Freeing memory. |
| 383 | * |
| 384 | *---------------------------------------------------------------------- |
| 385 | */ |
| 386 | static void |
| 387 | ConnChanFree(NsConnChan *connChanPtr, NsServer *servPtr) { |
| 388 | Tcl_HashEntry *hPtr; |
| 389 | |
| 390 | NS_NONNULL_ASSERT(connChanPtr != NULL)((void) (0)); |
| 391 | NS_NONNULL_ASSERT(servPtr != NULL)((void) (0)); |
| 392 | |
| 393 | //assert(connChanPtr->sockPtr != NULL); |
| 394 | //assert(connChanPtr->sockPtr->servPtr != NULL); |
| 395 | |
| 396 | //servPtr = connChanPtr->sockPtr->servPtr; |
| 397 | /* |
| 398 | * Remove entry from hash table. |
| 399 | */ |
| 400 | Ns_RWLockWrLock(&servPtr->connchans.lock); |
| 401 | hPtr = Tcl_FindHashEntry(&servPtr->connchans.table, connChanPtr->channelName)(*((&servPtr->connchans.table)->findProc))(&servPtr ->connchans.table, (const char *)(connChanPtr->channelName )); |
| 402 | if (hPtr != NULL((void*)0)) { |
| 403 | Tcl_DeleteHashEntry(hPtr); |
| 404 | } else { |
| 405 | Ns_Log(Error, "ns_connchan: could not delete hash entry for channel '%s'", |
| 406 | connChanPtr->channelName); |
| 407 | } |
| 408 | Ns_RWLockUnlock(&servPtr->connchans.lock); |
| 409 | |
| 410 | if (hPtr != NULL((void*)0)) { |
| 411 | /* |
| 412 | * Only in cases, where we found the entry, we can free the |
| 413 | * connChanPtr content. |
| 414 | */ |
| 415 | if (connChanPtr->cbPtr != NULL((void*)0)) { |
| 416 | /* |
| 417 | * Add CancelCallback() to the sock callback queue. |
| 418 | */ |
| 419 | CancelCallback(connChanPtr); |
| 420 | /* |
| 421 | * There might be a race condition, when a previously |
| 422 | * registered callback is currently active (or going to be |
| 423 | * processed). So make sure, it won't access a stale |
| 424 | * connChanPtr member. |
| 425 | */ |
| 426 | connChanPtr->cbPtr->connChanPtr = NULL((void*)0); |
| 427 | /* |
| 428 | * The cancel callback takes care about freeing the |
| 429 | * actual callback. |
| 430 | */ |
| 431 | connChanPtr->cbPtr = NULL((void*)0); |
| 432 | } |
| 433 | ns_free((char *)connChanPtr->channelName); |
| 434 | if (connChanPtr->clientData != NULL((void*)0)) { |
| 435 | ns_free((char *)connChanPtr->clientData); |
| 436 | } |
| 437 | |
| 438 | if (connChanPtr->sockPtr != NULL((void*)0)) { |
| 439 | NsSockClose(connChanPtr->sockPtr, (int)NS_FALSE0); |
| 440 | connChanPtr->sockPtr = NULL((void*)0); |
| 441 | } |
| 442 | if (connChanPtr->sendBuffer != NULL((void*)0)) { |
| 443 | Tcl_DStringFree(connChanPtr->sendBuffer); |
| 444 | ns_free((char *)connChanPtr->sendBuffer); |
| 445 | } |
| 446 | if (connChanPtr->frameBuffer != NULL((void*)0)) { |
| 447 | Tcl_DStringFree(connChanPtr->frameBuffer); |
| 448 | ns_free((char *)connChanPtr->frameBuffer); |
| 449 | } |
| 450 | if (connChanPtr->fragmentsBuffer != NULL((void*)0)) { |
| 451 | Tcl_DStringFree(connChanPtr->fragmentsBuffer); |
| 452 | ns_free((char *)connChanPtr->fragmentsBuffer); |
| 453 | } |
| 454 | ns_free((char *)connChanPtr); |
| 455 | } else { |
| 456 | Ns_Log(Bug, "ns_connchan: could not delete hash entry for channel '%s'", |
| 457 | connChanPtr->channelName); |
| 458 | } |
| 459 | |
| 460 | } |
| 461 | |
| 462 | |
| 463 | /* |
| 464 | *---------------------------------------------------------------------- |
| 465 | * |
| 466 | * ConnChanGet -- |
| 467 | * |
| 468 | * Access an NsConnChan from the per-server table via its name. |
| 469 | * |
| 470 | * Results: |
| 471 | * ConnChan* or NULL if not found. |
| 472 | * |
| 473 | * Side effects: |
| 474 | * None. |
| 475 | * |
| 476 | *---------------------------------------------------------------------- |
| 477 | */ |
| 478 | static NsConnChan * |
| 479 | ConnChanGet(Tcl_Interp *interp, NsServer *servPtr, const char *name) { |
| 480 | const Tcl_HashEntry *hPtr; |
| 481 | NsConnChan *connChanPtr = NULL((void*)0); |
| 482 | |
| 483 | NS_NONNULL_ASSERT(servPtr != NULL)((void) (0)); |
| 484 | NS_NONNULL_ASSERT(name != NULL)((void) (0)); |
| 485 | servPtr = NsGetServer(nsconf.defaultServer); |
| 486 | |
| 487 | Ns_RWLockRdLock(&servPtr->connchans.lock); |
| 488 | hPtr = Tcl_FindHashEntry(&servPtr->connchans.table, name)(*((&servPtr->connchans.table)->findProc))(&servPtr ->connchans.table, (const char *)(name)); |
| 489 | if (hPtr != NULL((void*)0)) { |
| 490 | connChanPtr = (NsConnChan *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 491 | } |
| 492 | Ns_RWLockUnlock(&servPtr->connchans.lock); |
| 493 | |
| 494 | if (connChanPtr == NULL((void*)0) && interp != NULL((void*)0)) { |
| 495 | Ns_TclPrintfResult(interp, "channel \"%s\" does not exist", name); |
| 496 | } |
| 497 | |
| 498 | return connChanPtr; |
| 499 | } |
| 500 | |
| 501 | |
| 502 | /* |
| 503 | *---------------------------------------------------------------------- |
| 504 | * |
| 505 | * NsTclConnChanProc -- |
| 506 | * |
| 507 | * A wrapper function callback that is called, when the callback |
| 508 | * is fired. The function allocates an interpreter if necessary, |
| 509 | * builds the argument list for invocation and calls the |
| 510 | * registered Tcl script. |
| 511 | * |
| 512 | * Results: |
| 513 | * NS_TRUE or NS_FALSE on error. |
| 514 | * |
| 515 | * Side effects: |
| 516 | * Will run Tcl script. |
| 517 | * |
| 518 | *---------------------------------------------------------------------- |
| 519 | */ |
| 520 | |
| 521 | static bool_Bool |
| 522 | NsTclConnChanProc(NS_SOCKETint UNUSED(sock)UNUSED_sock __attribute__((__unused__)), void *arg, unsigned int why) |
| 523 | { |
| 524 | Callback *cbPtr; |
| 525 | bool_Bool success = NS_TRUE1; |
| 526 | |
| 527 | NS_NONNULL_ASSERT(arg != NULL)((void) (0)); |
| 528 | |
| 529 | cbPtr = arg; |
| 530 | |
| 531 | if (cbPtr->connChanPtr == NULL((void*)0)) { |
| 532 | /* |
| 533 | * Safety belt. |
| 534 | */ |
| 535 | Ns_Log(Ns_LogConnchanDebug, "NsTclConnChanProc called on a probably deleted callback %p", |
| 536 | (void*)cbPtr); |
| 537 | success = NS_FALSE0; |
| 538 | |
| 539 | } else { |
| 540 | char whenBuffer[6]; |
| 541 | NsServer *servPtr; |
| 542 | |
| 543 | /* |
| 544 | * We should have a valid callback structure that we test |
| 545 | * with asserts (cbPtr->connChanPtr != NULL): |
| 546 | */ |
| 547 | Ns_Log(Ns_LogConnchanDebug, "%s NsTclConnChanProc why %s (%u)", |
| 548 | cbPtr->connChanPtr->channelName, WhenToString(whenBuffer, why), why); |
| 549 | |
| 550 | assert(cbPtr->connChanPtr->sockPtr != NULL)((void) (0)); |
| 551 | servPtr = cbPtr->connChanPtr->sockPtr->servPtr; |
| 552 | |
| 553 | if (why == (unsigned int)NS_SOCK_EXIT) { |
| 554 | /* |
| 555 | * Treat the "exit" case like error cases and free in such |
| 556 | * cases the connChanPtr structure. |
| 557 | */ |
| 558 | success = NS_FALSE0; |
| 559 | |
| 560 | } else { |
| 561 | int result; |
| 562 | Tcl_DString script; |
| 563 | Tcl_Interp *interp; |
| 564 | const char *w, *channelName; |
| 565 | bool_Bool logEnabled; |
| 566 | size_t scriptCmdNameLength; |
| 567 | NS_SOCKETint localsock; |
| 568 | |
| 569 | /* |
| 570 | * In all remaining cases, the Tcl callback is executed. |
| 571 | */ |
| 572 | assert(servPtr != NULL)((void) (0)); |
| 573 | |
| 574 | Tcl_DStringInit(&script); |
| 575 | Tcl_DStringAppend(&script, cbPtr->script, (int)cbPtr->scriptLength); |
| 576 | |
| 577 | if ((why & (unsigned int)NS_SOCK_TIMEOUT) != 0u) { |
| 578 | w = "t"; |
| 579 | } else if ((why & (unsigned int)NS_SOCK_READ) != 0u) { |
| 580 | w = "r"; |
| 581 | } else if ((why & (unsigned int)NS_SOCK_WRITE) != 0u) { |
| 582 | w = "w"; |
| 583 | } else if ((why & (unsigned int)NS_SOCK_EXCEPTION) != 0u) { |
| 584 | w = "e"; |
| 585 | } else { |
| 586 | w = "x"; |
| 587 | } |
| 588 | |
| 589 | if (Ns_LogSeverityEnabled(Ns_LogConnchanDebug)) { |
| 590 | logEnabled = NS_TRUE1; |
| 591 | channelName = ns_strdup(cbPtr->connChanPtr->channelName); |
| 592 | scriptCmdNameLength = cbPtr->scriptCmdNameLength; |
| 593 | } else { |
| 594 | logEnabled = NS_FALSE0; |
| 595 | channelName = NULL((void*)0); |
| 596 | scriptCmdNameLength = 0u; |
| 597 | } |
| 598 | Tcl_DStringAppendElement(&script, w); |
| 599 | |
| 600 | localsock = cbPtr->connChanPtr->sockPtr->sock; |
| 601 | interp = NsTclAllocateInterp(servPtr); |
| 602 | result = Tcl_EvalEx(interp, script.string, script.length, 0); |
| 603 | |
| 604 | if (result != TCL_OK0) { |
| 605 | (void) Ns_TclLogErrorInfo(interp, "\n(context: connchan proc)"); |
| 606 | } else { |
| 607 | Tcl_DString ds; |
| 608 | Tcl_Obj *objPtr = Tcl_GetObjResult(interp); |
| 609 | int ok = 1; |
| 610 | |
| 611 | /* |
| 612 | * Here we cannot trust the cbPtr structure anymore, |
| 613 | * since the call to Tcl_EvalEx might have deleted it |
| 614 | * via some script. |
| 615 | */ |
| 616 | |
| 617 | if (logEnabled) { |
| 618 | Tcl_DStringInit(&ds); |
| 619 | Ns_DStringNAppendTcl_DStringAppend(&ds, script.string, (int)scriptCmdNameLength); |
| 620 | Ns_Log(Ns_LogConnchanDebug, |
| 621 | "%s NsTclConnChanProc Tcl eval <%s> returned <%s>", |
| 622 | channelName, ds.string, Tcl_GetString(objPtr)); |
| 623 | Tcl_DStringFree(&ds); |
| 624 | } |
| 625 | |
| 626 | /* |
| 627 | * The Tcl callback can signal with the result "0", |
| 628 | * that the connection channel should be closed |
| 629 | * automatically. A result of "2" means to suspend |
| 630 | * (cancel) the callback, but not close the channel. |
| 631 | */ |
| 632 | result = Tcl_GetIntFromObj(interp, objPtr, &ok); |
| 633 | if (result == TCL_OK0) { |
| 634 | Ns_Log(Ns_LogConnchanDebug, "NsTclConnChanProc <%s> numeric result %d", script.string, ok); |
| 635 | if (ok == 0) { |
| 636 | result = TCL_ERROR1; |
| 637 | } else if (ok == 2) { |
| 638 | if (logEnabled) { |
| 639 | Ns_Log(Ns_LogConnchanDebug, "%s NsTclConnChanProc client " |
| 640 | "requested to CANCEL (suspend) callback %p", |
| 641 | channelName, (void*)cbPtr); |
| 642 | } |
| 643 | /* |
| 644 | * Use the "raw" Ns_SockCancelCallbackEx() API |
| 645 | * call to just stop socket handling, while |
| 646 | * keeping the connchan specific structures |
| 647 | * alive (postponing cleanup to a "close" |
| 648 | * operation). |
| 649 | * |
| 650 | * We cannot pass "callbackFree" and "cbPtr" |
| 651 | * to Ns_SockCancelCallbackEx(), so the |
| 652 | * callback structure will stay around until |
| 653 | * the callback is reset or the channel is |
| 654 | * finally cleaned. We might consider changing |
| 655 | * the condition flags (also from the |
| 656 | * scripting level) to turn callbacks for |
| 657 | * certain conditions on or off. |
| 658 | */ |
| 659 | (void) Ns_SockCancelCallbackEx(localsock, NULL((void*)0), NULL((void*)0), NULL((void*)0)); |
| 660 | |
| 661 | } |
| 662 | } else { |
| 663 | Tcl_DStringInit(&ds); |
| 664 | Ns_DStringNAppendTcl_DStringAppend(&ds, script.string, (int)scriptCmdNameLength); |
| 665 | |
| 666 | Ns_Log(Warning, "%s callback <%s> returned unhandled result '%s' (must be 0, 1, or 2)", |
| 667 | channelName, |
| 668 | ds.string, |
| 669 | Tcl_GetString(objPtr)); |
| 670 | Tcl_DStringFree(&ds); |
| 671 | } |
| 672 | } |
| 673 | if (channelName != NULL((void*)0)) { |
| 674 | ns_free((char *)channelName); |
| 675 | } |
| 676 | Ns_TclDeAllocateInterp(interp); |
| 677 | Tcl_DStringFree(&script); |
| 678 | |
| 679 | if (result != TCL_OK0) { |
| 680 | success = NS_FALSE0; |
| 681 | } |
| 682 | } |
| 683 | |
| 684 | if (!success) { |
| 685 | if (cbPtr->connChanPtr != NULL((void*)0)) { |
| 686 | Ns_Log(Ns_LogConnchanDebug, "%s NsTclConnChanProc free channel", |
| 687 | cbPtr->connChanPtr->channelName); |
| 688 | servPtr = NsGetServer(nsconf.defaultServer); // temporarily added |
| 689 | ConnChanFree(cbPtr->connChanPtr, servPtr); |
| 690 | cbPtr->connChanPtr = NULL((void*)0); |
| 691 | } |
| 692 | } |
| 693 | } |
| 694 | return success; |
| 695 | } |
| 696 | |
| 697 | |
| 698 | |
| 699 | |
| 700 | /* |
| 701 | *---------------------------------------------------------------------- |
| 702 | * |
| 703 | * ArgProc -- |
| 704 | * |
| 705 | * Append info for socket callback. |
| 706 | * |
| 707 | * Results: |
| 708 | * None. |
| 709 | * |
| 710 | * Side effects: |
| 711 | * None. |
| 712 | * |
| 713 | *---------------------------------------------------------------------- |
| 714 | */ |
| 715 | |
| 716 | static void |
| 717 | ArgProc(Tcl_DString *dsPtr, const void *arg) |
| 718 | { |
| 719 | const Callback *cbPtr = arg; |
| 720 | |
| 721 | Tcl_DStringStartSublist(dsPtr); |
| 722 | if (cbPtr->connChanPtr != NULL((void*)0)) { |
| 723 | /* |
| 724 | * It might be the case that the connChanPtr was canceled, but |
| 725 | * the updatecmd not yet executed. |
| 726 | */ |
| 727 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, cbPtr->connChanPtr->channelName, -1); |
| 728 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, " ", 1); |
| 729 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, cbPtr->script, (int)cbPtr->scriptCmdNameLength); |
| 730 | } else { |
| 731 | Ns_Log(Notice, "connchan ArgProc cbPtr %p has no connChanPtr", (void*)cbPtr); |
| 732 | } |
| 733 | Tcl_DStringEndSublist(dsPtr); |
| 734 | } |
| 735 | |
| 736 | /* |
| 737 | *---------------------------------------------------------------------- |
| 738 | * |
| 739 | * SockCallbackRegister -- |
| 740 | * |
| 741 | * Register a callback for the connection channel. Due to the |
| 742 | * underlying infrastructure, one socket has at most one callback |
| 743 | * registered at one time. |
| 744 | * |
| 745 | * Results: |
| 746 | * Standard NaviServer return code. |
| 747 | * |
| 748 | * Side effects: |
| 749 | * Memory management for the callback structure. |
| 750 | * |
| 751 | *---------------------------------------------------------------------- |
| 752 | */ |
| 753 | |
| 754 | static Ns_ReturnCode |
| 755 | SockCallbackRegister(NsConnChan *connChanPtr, const char *script, |
| 756 | unsigned int when, const Ns_Time *timeoutPtr) |
| 757 | { |
| 758 | Callback *cbPtr; |
| 759 | size_t scriptLength; |
| 760 | Ns_ReturnCode result; |
| 761 | const char *p; |
| 762 | |
| 763 | NS_NONNULL_ASSERT(connChanPtr != NULL)((void) (0)); |
| 764 | NS_NONNULL_ASSERT(script != NULL)((void) (0)); |
| 765 | |
| 766 | scriptLength = strlen(script); |
| 767 | |
| 768 | /* |
| 769 | * If there is already a callback registered, free and cancel |
| 770 | * it. This has to be done as first step, since CancelCallback() |
| 771 | * calls finally Ns_SockCancelCallbackEx(), which deletes all |
| 772 | * callbacks registered for the associated socket. |
| 773 | */ |
| 774 | if (connChanPtr->cbPtr != NULL((void*)0)) { |
| 775 | cbPtr = ns_realloc(connChanPtr->cbPtr, sizeof(Callback) + scriptLength); |
| 776 | |
| 777 | } else { |
| 778 | cbPtr = ns_malloc(sizeof(Callback) + scriptLength); |
| 779 | } |
| 780 | memcpy(cbPtr->script, script, scriptLength + 1u); |
| 781 | cbPtr->scriptLength = scriptLength; |
| 782 | |
| 783 | /* |
| 784 | * Keep the length of the cmd name for introspection and debugging |
| 785 | * purposes. Rationale: The callback often contains binary data, |
| 786 | * so outputting the full cmd mess up log files. |
| 787 | * |
| 788 | * Assumption: cmd name must not contain funny characters. |
| 789 | */ |
| 790 | p = strchr(cbPtr->script, INTCHAR(' ')((int)((unsigned char)((' '))))); |
| 791 | if (p != NULL((void*)0)) { |
| 792 | cbPtr->scriptCmdNameLength = (size_t)(p - cbPtr->script); |
| 793 | } else { |
| 794 | cbPtr->scriptCmdNameLength = 0u; |
| 795 | } |
| 796 | cbPtr->when = when; |
| 797 | cbPtr->threadName = NULL((void*)0); |
| 798 | cbPtr->connChanPtr = connChanPtr; |
| 799 | |
| 800 | result = Ns_SockCallbackEx(connChanPtr->sockPtr->sock, NsTclConnChanProc, cbPtr, |
| 801 | when | (unsigned int)NS_SOCK_EXIT, |
| 802 | timeoutPtr, &cbPtr->threadName); |
| 803 | if (result == NS_OK) { |
| 804 | connChanPtr->cbPtr = cbPtr; |
| 805 | |
| 806 | Ns_RegisterProcInfo((ns_funcptr_t)NsTclConnChanProc, "ns_connchan", ArgProc); |
| 807 | } else { |
| 808 | /* |
| 809 | * The callback could not be registered, maybe the socket is |
| 810 | * not valid anymore. Free the callback. |
| 811 | */ |
| 812 | (void) CallbackFree(connChanPtr->sockPtr->sock, cbPtr, (unsigned int)NS_SOCK_CANCEL); |
| 813 | connChanPtr->sockPtr = NULL((void*)0); |
| 814 | connChanPtr->cbPtr = NULL((void*)0); |
| 815 | } |
| 816 | return result; |
| 817 | } |
| 818 | |
| 819 | /* |
| 820 | *---------------------------------------------------------------------- |
| 821 | * |
| 822 | * ConnchanDriverSend -- |
| 823 | * |
| 824 | * Write a vector of buffers to the socket via the driver callback. |
| 825 | * |
| 826 | * Results: |
| 827 | * Number of bytes written, or -1 on error. |
| 828 | * |
| 829 | * Side effects: |
| 830 | * Depends on driver. |
| 831 | * |
| 832 | *---------------------------------------------------------------------- |
| 833 | */ |
| 834 | |
| 835 | static ssize_t |
| 836 | ConnchanDriverSend(Tcl_Interp *interp, const NsConnChan *connChanPtr, |
| 837 | struct iovec *bufs, int nbufs, unsigned int flags, |
| 838 | const Ns_Time *timeoutPtr) |
| 839 | { |
| 840 | ssize_t result; |
| 841 | Sock *sockPtr; |
| 842 | |
| 843 | NS_NONNULL_ASSERT(connChanPtr != NULL)((void) (0)); |
| 844 | NS_NONNULL_ASSERT(timeoutPtr != NULL)((void) (0)); |
| 845 | |
| 846 | sockPtr = connChanPtr->sockPtr; |
| 847 | |
| 848 | assert(sockPtr != NULL)((void) (0)); |
| 849 | assert(sockPtr->drvPtr != NULL)((void) (0)); |
| 850 | |
| 851 | /* |
| 852 | * Call the driver's sendProc, but handle also partial write |
| 853 | * operations. |
| 854 | * |
| 855 | * In principle, we could call here simply |
| 856 | * |
| 857 | * result = Ns_SockSendBufs((Ns_Sock *)sockPtr, bufs, nbufs, timeoutPtr, flags); |
| 858 | * |
| 859 | * but this operation can block the thread in cases where not all |
| 860 | * of the buffer was sent. Therefore, the following block defines |
| 861 | * a logic, where on partial operations, the remaining data is |
| 862 | * passed to the caller, when no send timeout is specified. |
| 863 | */ |
| 864 | if (likely(sockPtr->drvPtr->sendProc != NULL)(__builtin_expect((sockPtr->drvPtr->sendProc != ((void* )0)), 1))) { |
| 865 | bool_Bool haveTimeout = NS_FALSE0, partial; |
| 866 | ssize_t nSent = 0, toSend = (ssize_t)Ns_SumVec(bufs, nbufs), origLength = toSend, partialResult; |
| 867 | |
| 868 | do { |
| 869 | ssize_t partialToSend = (ssize_t)Ns_SumVec(bufs, nbufs); |
| 870 | |
| 871 | Ns_Log(Ns_LogConnchanDebug, "%s ConnchanDriverSend try to send [0] %" PRIdz"zd" |
| 872 | " bytes (total %" PRIdz"zd" ")", |
| 873 | connChanPtr->channelName, |
| 874 | bufs->iov_len, partialToSend); |
| 875 | |
| 876 | partialResult = NsDriverSend(sockPtr, bufs, nbufs, flags); |
| 877 | Ns_Log(Ns_LogConnchanDebug, "%s ConnchanDriverSend NsDriverSend returned result %" |
| 878 | PRIdz"zd" " errorState %d --- %s", |
| 879 | connChanPtr->channelName, partialResult, sockPtr->recvSockState, Tcl_ErrnoMsg(errno(*__errno_location ()))); |
| 880 | |
| 881 | if (partialResult == 0) { |
| 882 | /* |
| 883 | * The resource is temporarily unavailable, we can an |
| 884 | * retry, when the socket is writable. |
| 885 | * |
| 886 | * If there is no timeout provided, return the bytes sent so far. |
| 887 | */ |
| 888 | if (timeoutPtr->sec == 0 && timeoutPtr->usec == 0) { |
| 889 | Ns_Log(Ns_LogConnchanDebug, |
| 890 | "%s ConnchanDriverSend would block, no timeout configured, " |
| 891 | "origLength %" PRIdz"zd"" still to send %" PRIdz"zd" " already sent %" PRIdz"zd", |
| 892 | connChanPtr->channelName, origLength, toSend, nSent); |
| 893 | break; |
| 894 | |
| 895 | } else { |
| 896 | /* |
| 897 | * A timeout was provided. Be aware that the timeout |
| 898 | * will suspend all sock-callback handlings for this |
| 899 | * time period. |
| 900 | */ |
| 901 | Ns_Log(Ns_LogConnchanDebug, "%s ConnchanDriverSend recoverable " |
| 902 | "error before timeout (" NS_TIME_FMT"%" "l" "d" ".%06ld" ")", |
| 903 | connChanPtr->channelName, (int64_t)timeoutPtr->sec, timeoutPtr->usec); |
| 904 | |
| 905 | if (Ns_SockTimedWait(sockPtr->sock, (unsigned int)NS_SOCK_WRITE, timeoutPtr) == NS_OK) { |
| 906 | partialResult = NsDriverSend(sockPtr, bufs, nbufs, flags); |
| 907 | } else { |
| 908 | Ns_Log(Ns_LogConnchanDebug, "%s ConnchanDriverSend timeout occurred", |
| 909 | connChanPtr->channelName); |
| 910 | haveTimeout = NS_TRUE1; |
| 911 | Ns_TclPrintfResult(interp, "channel %s timeout on send " |
| 912 | "operation (" NS_TIME_FMT"%" "l" "d" ".%06ld" ")", |
| 913 | connChanPtr->channelName, |
| 914 | (int64_t)timeoutPtr->sec, timeoutPtr->usec); |
| 915 | Tcl_SetErrorCode(interp, "NS_TIMEOUT", (char *)0L); |
| 916 | Ns_Log(Ns_LogTimeoutDebug, "connchan send on %s runs into timeout", |
| 917 | connChanPtr->channelName); |
| 918 | partialResult = -1; |
| 919 | } |
| 920 | } |
| 921 | } |
| 922 | |
| 923 | partial = NS_FALSE0; |
| 924 | |
| 925 | if (partialResult != -1) { |
| 926 | nSent += partialResult; |
| 927 | partialToSend -= partialResult; |
| 928 | |
| 929 | Ns_Log(Ns_LogConnchanDebug, "%s ConnchanDriverSend check partialResult %" PRIdz"zd" |
| 930 | " nSent %" PRIdz"zd" " toSend %" PRIdz"zd" " partial ? %d", |
| 931 | connChanPtr->channelName, partialResult, nSent, partialToSend, (partialToSend > 0)); |
| 932 | assert(partialToSend >= 0)((void) (0)); |
| 933 | |
| 934 | if (partialToSend > 0) { |
| 935 | /* |
| 936 | * Partial write operation: part of the iovec has |
| 937 | * been sent, we have to retransmit the rest. |
| 938 | */ |
| 939 | Ns_Log(Notice, |
| 940 | "%s ConnchanDriverSend partial write operation, sent %" PRIdz"zd" |
| 941 | " (so far %" PRIdz"zd" ") remaining %" PRIdz"zd" |
| 942 | " bytes, full length %" PRIdz"zd", |
| 943 | connChanPtr->channelName, partialResult, nSent, partialToSend, origLength); |
| 944 | partial = NS_TRUE1; |
| 945 | } |
| 946 | (void) Ns_ResetVec(bufs, nbufs, (size_t)partialResult); |
| 947 | assert((size_t)partialToSend == Ns_SumVec(bufs, nbufs))((void) (0)); |
| 948 | |
| 949 | } else if (!haveTimeout) { |
| 950 | /* |
| 951 | * The "errno" variable might be 0 here (at least in |
| 952 | * https cases), when there are OpenSSL error cases |
| 953 | * not caused by the OS socket states. This can lead |
| 954 | * to weird looking exceptions, stating "Success" |
| 955 | * (errno == 0). Such errors happened e.g. before |
| 956 | * setting SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER. Hopefully, |
| 957 | * such error cases are eliminated already. In case |
| 958 | * we see such errors again, we should look for a way |
| 959 | * to get the error message directly from the driver |
| 960 | * (e.g. from OpenSSL) and not from the OS. |
| 961 | */ |
| 962 | const char *errorMsg = Tcl_ErrnoMsg(errno(*__errno_location ())); |
| 963 | /* |
| 964 | * Timeout is handled above, all other errors ar |
| 965 | * handled here. Return these as POSIX errors. |
| 966 | */ |
| 967 | Ns_TclPrintfResult(interp, "channel %s send operation failed: %s", |
| 968 | connChanPtr->channelName, errorMsg); |
| 969 | Tcl_SetErrorCode(interp, "POSIX", Tcl_ErrnoId(), errorMsg, (char *)0L); |
| 970 | } |
| 971 | |
| 972 | Ns_Log(Ns_LogConnchanDebug, "%s ### check result %ld == -1 || %ld == %ld " |
| 973 | "(partial %d && ok %d) => try again %d", |
| 974 | connChanPtr->channelName, |
| 975 | partialResult, toSend, nSent, |
| 976 | partial, (partialResult != -1), (partial && (partialResult != -1))); |
| 977 | |
| 978 | } while (partial && (partialResult != -1)); |
| 979 | |
| 980 | if (partialResult != -1) { |
| 981 | result = nSent; |
| 982 | } else { |
| 983 | result = -1; |
| 984 | } |
| 985 | |
| 986 | } else { |
| 987 | Ns_TclPrintfResult(interp, "channel %s: no sendProc registered for driver %s", |
| 988 | connChanPtr->channelName, sockPtr->drvPtr->moduleName); |
| 989 | result = -1; |
| 990 | } |
| 991 | |
| 992 | return result; |
| 993 | } |
| 994 | |
| 995 | |
| 996 | /* |
| 997 | *---------------------------------------------------------------------- |
| 998 | * |
| 999 | * ConnChanDetachObjCmd -- |
| 1000 | * |
| 1001 | * Implements "ns_connchan detach". |
| 1002 | * |
| 1003 | * Results: |
| 1004 | * A standard Tcl result. |
| 1005 | * |
| 1006 | * Side effects: |
| 1007 | * Depends on subcommand. |
| 1008 | * |
| 1009 | *---------------------------------------------------------------------- |
| 1010 | */ |
| 1011 | static int |
| 1012 | ConnChanDetachObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1013 | { |
| 1014 | const NsInterp *itPtr = clientData; |
| 1015 | Conn *connPtr = (Conn *)itPtr->conn; |
| 1016 | int result = TCL_OK0; |
| 1017 | |
| 1018 | if (Ns_ParseObjv(NULL((void*)0), NULL((void*)0), interp, 2, objc, objv) != NS_OK) { |
| 1019 | result = TCL_ERROR1; |
| 1020 | |
| 1021 | } else if (connPtr == NULL((void*)0)) { |
| 1022 | Ns_TclPrintfResult(interp, "no current connection"); |
| 1023 | result = TCL_ERROR1; |
| 1024 | |
| 1025 | } else { |
| 1026 | NsServer *servPtr = NsGetServer(nsconf.defaultServer); //itPtr->servPtr; |
| 1027 | const NsConnChan *connChanPtr; |
| 1028 | |
| 1029 | /* |
| 1030 | * Lock the channel table and create a new entry for the |
| 1031 | * connection. After this operation the channel is responsible |
| 1032 | * for managing the sockPtr, so we have to remove it from the |
| 1033 | * connection structure. |
| 1034 | */ |
| 1035 | connChanPtr = ConnChanCreate(servPtr, |
| 1036 | connPtr->sockPtr, |
| 1037 | Ns_ConnStartTime((Ns_Conn *)connPtr), |
| 1038 | Ns_ConnConfiguredPeerAddr(itPtr->conn), |
| 1039 | ((connPtr->flags & NS_CONN_WRITE_ENCODED0x020u) == 0u), |
| 1040 | connPtr->clientData); |
| 1041 | Ns_Log(Ns_LogConnchanDebug, "%s ConnChanDetachObjCmd sock %d", |
| 1042 | connChanPtr->channelName, |
| 1043 | connPtr->sockPtr->sock); |
| 1044 | |
| 1045 | connPtr->sockPtr = NULL((void*)0); |
| 1046 | /* |
| 1047 | * All commands responding the client via this connection |
| 1048 | * can't work now, since response handling is delegated to the |
| 1049 | * connchan machinery. Make this situation detectable at the |
| 1050 | * script level via "ns_conn isconnected" by setting the close |
| 1051 | * flag. |
| 1052 | */ |
| 1053 | connPtr->flags |= NS_CONN_CLOSED0x001u; |
| 1054 | |
| 1055 | Tcl_SetObjResult(interp, Tcl_NewStringObj(connChanPtr->channelName, -1)); |
| 1056 | Ns_Log(Ns_LogConnchanDebug, "%s ns_connchan detach returns %d", connChanPtr->channelName, result); |
| 1057 | } |
| 1058 | return result; |
| 1059 | } |
| 1060 | |
| 1061 | /* |
| 1062 | *---------------------------------------------------------------------- |
| 1063 | * |
| 1064 | * ConnChanOpenObjCmd -- |
| 1065 | * |
| 1066 | * Implements "ns_connchan open". |
| 1067 | * |
| 1068 | * Results: |
| 1069 | * A standard Tcl result. |
| 1070 | * |
| 1071 | * Side effects: |
| 1072 | * Depends on subcommand. |
| 1073 | * |
| 1074 | *---------------------------------------------------------------------- |
| 1075 | */ |
| 1076 | static int |
| 1077 | ConnChanOpenObjCmd(ClientData UNUSED(clientData)UNUSED_clientData __attribute__((__unused__)), Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1078 | { |
| 1079 | int result; |
| 1080 | Sock *sockPtr = NULL((void*)0); |
| 1081 | Ns_Set *hdrPtr = NULL((void*)0); |
| 1082 | char *url, *method = (char *)"GET", *version = (char *)"1.0", |
| 1083 | *driverName = NULL((void*)0), *sniHostname = NULL((void*)0); |
| 1084 | Ns_Time timeout = {1, 0}, *timeoutPtr = &timeout; |
| 1085 | Ns_ObjvSpec lopts[] = { |
| 1086 | {"-driver", Ns_ObjvString, &driverName, NULL((void*)0)}, |
| 1087 | {"-headers", Ns_ObjvSet, &hdrPtr, NULL((void*)0)}, |
| 1088 | {"-hostname", Ns_ObjvString, &sniHostname, NULL((void*)0)}, |
| 1089 | {"-method", Ns_ObjvString, &method, NULL((void*)0)}, |
| 1090 | {"-timeout", Ns_ObjvTime, &timeoutPtr, NULL((void*)0)}, |
| 1091 | {"-version", Ns_ObjvString, &version, NULL((void*)0)}, |
| 1092 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1093 | }; |
| 1094 | Ns_ObjvSpec largs[] = { |
| 1095 | {"url", Ns_ObjvString, &url, NULL((void*)0)}, |
| 1096 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1097 | }; |
| 1098 | |
| 1099 | if (Ns_ParseObjv(lopts, largs, interp, 2, objc, objv) != NS_OK) { |
| 1100 | result = TCL_ERROR1; |
| 1101 | } else { |
| 1102 | //const NsInterp *itPtr = clientData; |
| 1103 | NsServer *servPtr = NsGetServer(nsconf.defaultServer); //itPtr->servPtr; |
| 1104 | NsConnChan *connChanPtr; |
| 1105 | |
| 1106 | result = NSDriverClientOpen(interp, driverName, url, method, version, timeoutPtr, &sockPtr); |
| 1107 | if (likely(result == TCL_OK)(__builtin_expect((result == 0), 1))) { |
| 1108 | |
| 1109 | if (STREQ(sockPtr->drvPtr->protocol, "https")(((*(sockPtr->drvPtr->protocol)) == (*("https"))) && (strcmp((sockPtr->drvPtr->protocol),("https")) == 0))) { |
Duplicate code detected | |
| 1110 | NS_TLS_SSL_CTXSSL_CTX *ctx; |
| 1111 | |
| 1112 | assert(sockPtr->drvPtr->clientInitProc != NULL)((void) (0)); |
| 1113 | |
| 1114 | /* |
| 1115 | * For the time being, just pass NULL |
| 1116 | * structures. Probably, we could create the |
| 1117 | * SSLcontext. |
| 1118 | */ |
| 1119 | result = Ns_TLS_CtxClientCreate(interp, |
| 1120 | NULL((void*)0) /*cert*/, NULL((void*)0) /*caFile*/, |
| 1121 | NULL((void*)0) /* caPath*/, NS_FALSE0 /*verify*/, |
| 1122 | &ctx); |
| 1123 | if (likely(result == TCL_OK)(__builtin_expect((result == 0), 1))) { |
| 1124 | Ns_DriverClientInitArg params = {ctx, sniHostname}; |
| 1125 | result = (*sockPtr->drvPtr->clientInitProc)(interp, (Ns_Sock *)sockPtr, ¶ms); |
| 1126 | |
| 1127 | /* |
| 1128 | * For the time being, we create/delete the ctx in |
| 1129 | * an eager fashion. We could probably make it |
| 1130 | * reusable and keep it around. |
| 1131 | */ |
| 1132 | if (ctx != NULL((void*)0)) { |
| 1133 | Ns_TLS_CtxFree(ctx); |
| 1134 | } |
| 1135 | } |
| 1136 | } |
| 1137 | |
| 1138 | if (likely(result == TCL_OK)(__builtin_expect((result == 0), 1))) { |
| 1139 | struct iovec buf[4]; |
| 1140 | Ns_Time now; |
| 1141 | ssize_t nSent; |
| 1142 | |
| 1143 | Ns_GetTime(&now); |
| 1144 | connChanPtr = ConnChanCreate(servPtr, |
| 1145 | sockPtr, |
| 1146 | &now, |
| 1147 | NULL((void*)0), |
| 1148 | NS_TRUE1 /* binary, fixed for the time being */, |
| 1149 | NULL((void*)0)); |
| 1150 | if (hdrPtr != NULL((void*)0)) { |
| 1151 | size_t i; |
| 1152 | |
| 1153 | for (i = 0u; i < Ns_SetSize(hdrPtr)((hdrPtr)->size); i++) { |
| 1154 | const char *key = Ns_SetKey(hdrPtr, i)((hdrPtr)->fields[(i)].name); |
| 1155 | Ns_DStringPrintf(&sockPtr->reqPtr->buffer, "%s: %s\r\n", key, Ns_SetValue(hdrPtr, i)((hdrPtr)->fields[(i)].value)); |
| 1156 | } |
| 1157 | } |
| 1158 | |
| 1159 | Ns_Log(Ns_LogConnchanDebug, "ns_connchan open %s => %s", |
| 1160 | url, connChanPtr->channelName); |
| 1161 | |
| 1162 | /* |
| 1163 | * Write the request header via the "send" operation of |
| 1164 | * the driver. |
| 1165 | */ |
| 1166 | buf[0].iov_base = (void *)sockPtr->reqPtr->request.line; |
| 1167 | buf[0].iov_len = strlen(buf[0].iov_base); |
| 1168 | |
| 1169 | buf[1].iov_base = (void *)"\r\n"; |
| 1170 | buf[1].iov_len = 2u; |
| 1171 | |
| 1172 | buf[2].iov_base = (void *)sockPtr->reqPtr->buffer.string; |
| 1173 | buf[2].iov_len = (size_t)Tcl_DStringLength(&sockPtr->reqPtr->buffer)((&sockPtr->reqPtr->buffer)->length); |
| 1174 | |
| 1175 | buf[3].iov_base = (void *)"\r\n"; |
| 1176 | buf[3].iov_len = 2u; |
| 1177 | |
| 1178 | nSent = ConnchanDriverSend(interp, connChanPtr, buf, 4, 0u, &connChanPtr->sendTimeout); |
| 1179 | Ns_Log(Ns_LogConnchanDebug, "%s ConnchanDriverSend sent %" PRIdz"zd" " bytes state %s", |
| 1180 | connChanPtr->channelName, |
| 1181 | nSent, errno(*__errno_location ()) != 0 ? strerror(errno(*__errno_location ())) : "ok"); |
| 1182 | |
| 1183 | if (nSent > -1) { |
| 1184 | connChanPtr->wBytes += (size_t)nSent; |
| 1185 | Tcl_SetObjResult(interp, Tcl_NewStringObj(connChanPtr->channelName, -1)); |
| 1186 | } else { |
| 1187 | result = TCL_ERROR1; |
| 1188 | } |
| 1189 | } |
| 1190 | } |
| 1191 | |
| 1192 | if (unlikely(result != TCL_OK && sockPtr != NULL && sockPtr->sock > 0)(__builtin_expect((result != 0 && sockPtr != ((void*) 0) && sockPtr->sock > 0), 0))) { |
| 1193 | ns_sockcloseclose(sockPtr->sock); |
| 1194 | } |
| 1195 | Ns_Log(Ns_LogConnchanDebug, "ns_connchan open %s returns %d", url, result); |
| 1196 | } |
| 1197 | return result; |
| 1198 | } |
| 1199 | /* |
| 1200 | *---------------------------------------------------------------------- |
| 1201 | * |
| 1202 | * ConnChanConnectObjCmd -- |
| 1203 | * |
| 1204 | * Implements "ns_connchan connect". |
| 1205 | * |
| 1206 | * Results: |
| 1207 | * A standard Tcl result. |
| 1208 | * |
| 1209 | * Side effects: |
| 1210 | * Depends on subcommand. |
| 1211 | * |
| 1212 | *---------------------------------------------------------------------- |
| 1213 | */ |
| 1214 | static int |
| 1215 | ConnChanConnectObjCmd(ClientData UNUSED(clientData)UNUSED_clientData __attribute__((__unused__)), Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1216 | { |
| 1217 | int result, doTLS = (int)NS_FALSE0; |
| 1218 | unsigned short portNr = 0u; |
| 1219 | char *host; |
| 1220 | Ns_Time timeout = {1, 0}, *timeoutPtr = &timeout; |
| 1221 | Ns_ObjvSpec lopts[] = { |
| 1222 | {"-tls", Ns_ObjvBool, &doTLS, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 1223 | {"-timeout", Ns_ObjvTime, &timeoutPtr, NULL((void*)0)}, |
| 1224 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1225 | }; |
| 1226 | Ns_ObjvSpec largs[] = { |
| 1227 | {"host", Ns_ObjvString, &host, NULL((void*)0)}, |
| 1228 | {"port", Ns_ObjvUShort, &portNr, NULL((void*)0)}, |
| 1229 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1230 | }; |
| 1231 | |
| 1232 | if (Ns_ParseObjv(lopts, largs, interp, 2, objc, objv) != NS_OK) { |
| 1233 | result = TCL_ERROR1; |
| 1234 | } else { |
| 1235 | //const NsInterp *itPtr = clientData; |
| 1236 | NsServer *servPtr = NsGetServer(nsconf.defaultServer); //itPtr->servPtr; |
| 1237 | Sock *sockPtr = NULL((void*)0); |
| 1238 | NS_SOCKETint sock; |
| 1239 | Ns_ReturnCode status; |
| 1240 | |
| 1241 | sock = Ns_SockTimedConnect2(host, portNr, NULL((void*)0), 0u, timeoutPtr, &status); |
| 1242 | |
| 1243 | if (sock == NS_INVALID_SOCKET(-1)) { |
| 1244 | Ns_SockConnectError(interp, host, portNr, status); |
| 1245 | result = TCL_ERROR1; |
| 1246 | |
| 1247 | } else { |
| 1248 | result = NSDriverSockNew(interp, sock, doTLS ? "https" : "http", NULL((void*)0), "CONNECT", &sockPtr); |
| 1249 | } |
| 1250 | |
| 1251 | if (likely(result == TCL_OK)(__builtin_expect((result == 0), 1))) { |
| 1252 | |
| 1253 | if (STREQ(sockPtr->drvPtr->protocol, "https")(((*(sockPtr->drvPtr->protocol)) == (*("https"))) && (strcmp((sockPtr->drvPtr->protocol),("https")) == 0))) { |
Similar code here | |
| 1254 | NS_TLS_SSL_CTXSSL_CTX *ctx; |
| 1255 | |
| 1256 | assert(sockPtr->drvPtr->clientInitProc != NULL)((void) (0)); |
| 1257 | |
| 1258 | /* |
| 1259 | * For the time being, just pass NULL |
| 1260 | * structures. Probably, we could create the |
| 1261 | * SSLcontext. |
| 1262 | */ |
| 1263 | result = Ns_TLS_CtxClientCreate(interp, |
| 1264 | NULL((void*)0) /*cert*/, NULL((void*)0) /*caFile*/, |
| 1265 | NULL((void*)0) /* caPath*/, NS_FALSE0 /*verify*/, |
| 1266 | &ctx); |
| 1267 | if (likely(result == TCL_OK)(__builtin_expect((result == 0), 1))) { |
| 1268 | Ns_DriverClientInitArg params = {ctx, host}; |
| 1269 | result = (*sockPtr->drvPtr->clientInitProc)(interp, (Ns_Sock *)sockPtr, ¶ms); |
| 1270 | |
| 1271 | /* |
| 1272 | * For the time being, we create/delete the ctx in |
| 1273 | * an eager fashion. We could probably make it |
| 1274 | * reusable and keep it around. |
| 1275 | */ |
| 1276 | if (ctx != NULL((void*)0)) { |
| 1277 | Ns_TLS_CtxFree(ctx); |
| 1278 | } |
| 1279 | } |
| 1280 | } |
| 1281 | |
| 1282 | if (likely(result == TCL_OK)(__builtin_expect((result == 0), 1))) { |
| 1283 | Ns_Time now; |
| 1284 | NsConnChan *connChanPtr; |
| 1285 | |
| 1286 | Ns_GetTime(&now); |
| 1287 | connChanPtr = ConnChanCreate(servPtr, |
| 1288 | sockPtr, |
| 1289 | &now, |
| 1290 | NULL((void*)0), |
| 1291 | NS_TRUE1 /* binary, fixed for the time being */, |
| 1292 | NULL((void*)0)); |
| 1293 | |
| 1294 | Tcl_SetObjResult(interp, Tcl_NewStringObj(connChanPtr->channelName, -1)); |
| 1295 | } |
| 1296 | |
| 1297 | } |
| 1298 | if (unlikely(result != TCL_OK && sockPtr != NULL && sockPtr->sock > 0)(__builtin_expect((result != 0 && sockPtr != ((void*) 0) && sockPtr->sock > 0), 0))) { |
| 1299 | ns_sockcloseclose(sockPtr->sock); |
| 1300 | } |
| 1301 | Ns_Log(Ns_LogConnchanDebug, "ns_connchan connect %s %hu returns %d", host, portNr, result); |
| 1302 | } |
| 1303 | return result; |
| 1304 | } |
| 1305 | |
| 1306 | |
| 1307 | /* |
| 1308 | *---------------------------------------------------------------------- |
| 1309 | * |
| 1310 | * ConnChanListenObjCmd -- |
| 1311 | * |
| 1312 | * Implements "ns_connchan listen". |
| 1313 | * |
| 1314 | * Results: |
| 1315 | * A standard Tcl result. |
| 1316 | * |
| 1317 | * Side effects: |
| 1318 | * Depends on subcommand. |
| 1319 | * |
| 1320 | *---------------------------------------------------------------------- |
| 1321 | */ |
| 1322 | |
| 1323 | static int |
| 1324 | ConnChanListenObjCmd(ClientData UNUSED(clientData)UNUSED_clientData __attribute__((__unused__)), Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1325 | { |
| 1326 | //const NsInterp *itPtr = clientData; |
| 1327 | NsServer *servPtr = NsGetServer(nsconf.defaultServer); //itPtr->servPtr; |
| 1328 | int result, doBind = (int)NS_FALSE0; |
| 1329 | unsigned short port = 0u; |
| 1330 | char *driverName = NULL((void*)0), *addr = (char*)NS_EMPTY_STRING, *script; |
| 1331 | Ns_ObjvSpec lopts[] = { |
| 1332 | {"-driver", Ns_ObjvString, &driverName, NULL((void*)0)}, |
| 1333 | {"-server", Ns_ObjvServer, &servPtr, NULL((void*)0)}, |
| 1334 | {"-bind", Ns_ObjvBool, &doBind, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 1335 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1336 | }; |
| 1337 | Ns_ObjvSpec largs[] = { |
| 1338 | {"address", Ns_ObjvString, &addr, NULL((void*)0)}, |
| 1339 | {"port", Ns_ObjvUShort, &port, NULL((void*)0)}, |
| 1340 | {"script", Ns_ObjvString, &script, NULL((void*)0)}, |
| 1341 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1342 | }; |
| 1343 | |
| 1344 | if (Ns_ParseObjv(lopts, largs, interp, 2, objc, objv) != NS_OK) { |
| 1345 | result = TCL_ERROR1; |
| 1346 | |
| 1347 | } else { |
| 1348 | ListenCallback *lcbPtr; |
| 1349 | size_t scriptLength; |
| 1350 | NS_SOCKETint sock; |
| 1351 | |
| 1352 | if (STREQ(addr, "*")(((*(addr)) == (*("*"))) && (strcmp((addr),("*")) == 0 ))) { |
| 1353 | addr = NULL((void*)0); |
| 1354 | } |
| 1355 | scriptLength = strlen(script); |
| 1356 | lcbPtr = ns_malloc(sizeof(ListenCallback) + scriptLength); |
| 1357 | if (unlikely(lcbPtr == NULL)(__builtin_expect((lcbPtr == ((void*)0)), 0))) { |
| 1358 | return TCL_ERROR1; |
| 1359 | } |
| 1360 | |
| 1361 | lcbPtr->server = servPtr->server; |
| 1362 | memcpy(lcbPtr->script, script, scriptLength + 1u); |
| 1363 | lcbPtr->driverName = ns_strcopy(driverName); |
| 1364 | sock = Ns_SockListenCallback(addr, port, SockListenCallback, doBind, lcbPtr); |
| 1365 | |
| 1366 | /* Ns_Log(Notice, "ns_connchan listen calls Ns_SockListenCallback, returning %d", sock);*/ |
| 1367 | if (sock == NS_INVALID_SOCKET(-1)) { |
| 1368 | Ns_TclPrintfResult(interp, "could not register callback"); |
| 1369 | ns_free(lcbPtr); |
| 1370 | result = TCL_ERROR1; |
| 1371 | } else { |
| 1372 | struct NS_SOCKADDR_STORAGEsockaddr_storage sa; |
| 1373 | socklen_t len = (socklen_t)sizeof(sa); |
| 1374 | Sock *sockPtr = NULL((void*)0); |
| 1375 | |
| 1376 | result = NSDriverSockNew(interp, sock, "http", lcbPtr->driverName, "CONNECT", &sockPtr); |
| 1377 | if (result == TCL_OK0 && sockPtr->servPtr != NULL((void*)0)) { |
| 1378 | Ns_Time now; |
| 1379 | NsConnChan *connChanPtr; |
| 1380 | int retVal; |
| 1381 | |
| 1382 | Ns_GetTime(&now); |
| 1383 | connChanPtr = ConnChanCreate(sockPtr->servPtr, |
| 1384 | sockPtr, |
| 1385 | &now, |
| 1386 | NULL((void*)0), |
| 1387 | NS_TRUE1 /* binary, fixed for the time being */, |
| 1388 | NULL((void*)0)); |
| 1389 | retVal = getsockname(sock, (struct sockaddr *) &sa, &len); |
| 1390 | if (retVal == -1) { |
| 1391 | Ns_TclPrintfResult(interp, "can't obtain socket info %s", ns_sockstrerrorstrerror(ns_sockerrno(*__errno_location ()))); |
| 1392 | servPtr = NsGetServer(nsconf.defaultServer); // temporarily added |
| 1393 | ConnChanFree(connChanPtr, servPtr/*sockPtr->servPtr*/); |
| 1394 | result = TCL_ERROR1; |
| 1395 | } else { |
| 1396 | Tcl_Obj *listObj = Tcl_NewListObj(0, NULL((void*)0)); |
| 1397 | char ipString[NS_IPADDR_SIZE46]; |
| 1398 | |
| 1399 | Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj("channel", 7)); |
| 1400 | Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj(connChanPtr->channelName, -1)); |
| 1401 | |
| 1402 | port = Ns_SockaddrGetPort((struct sockaddr *) &sa); |
| 1403 | Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj("port", 4)); |
| 1404 | Tcl_ListObjAppendElement(interp, listObj, Tcl_NewIntObj((int)port)); |
| 1405 | |
| 1406 | Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj("sock", 4)); |
| 1407 | Tcl_ListObjAppendElement(interp, listObj, Tcl_NewIntObj((int)sock)); |
| 1408 | |
| 1409 | ns_inet_ntop((struct sockaddr *) &sa, ipString, sizeof(ipString)); |
| 1410 | Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj("address", 7)); |
| 1411 | Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj(ipString, -1)); |
| 1412 | |
| 1413 | Tcl_SetObjResult(interp, listObj); |
| 1414 | } |
| 1415 | } |
| 1416 | } |
| 1417 | } |
| 1418 | Ns_Log(Ns_LogConnchanDebug, "ns_connchan listen %s %hu returns %d", addr, port, result); |
| 1419 | return result; |
| 1420 | } |
| 1421 | |
| 1422 | /* |
| 1423 | *---------------------------------------------------------------------- |
| 1424 | * |
| 1425 | * SockListenCallback -- |
| 1426 | * |
| 1427 | * This is the C wrapper callback that is registered from |
| 1428 | * ListenCallback. |
| 1429 | * |
| 1430 | * Results: |
| 1431 | * NS_TRUE or NS_FALSE on error. |
| 1432 | * |
| 1433 | * Side effects: |
| 1434 | * Will run Tcl script. |
| 1435 | * |
| 1436 | *---------------------------------------------------------------------- |
| 1437 | */ |
| 1438 | |
| 1439 | static bool_Bool |
| 1440 | SockListenCallback(NS_SOCKETint sock, void *arg, unsigned int UNUSED(why)UNUSED_why __attribute__((__unused__))) |
| 1441 | { |
| 1442 | const ListenCallback *lcbPtr; |
| 1443 | Tcl_Interp *interp; |
| 1444 | int result; |
| 1445 | Sock *sockPtr = NULL((void*)0); |
| 1446 | Ns_Time now; |
| 1447 | Tcl_Obj *listObj = Tcl_NewListObj(0, NULL((void*)0)); |
| 1448 | NsConnChan *connChanPtr = NULL((void*)0); |
| 1449 | |
| 1450 | assert(arg != NULL)((void) (0)); |
| 1451 | |
| 1452 | lcbPtr = arg; |
| 1453 | interp = Ns_TclAllocateInterp(lcbPtr->server); |
| 1454 | |
| 1455 | result = NSDriverSockNew(interp, sock, "http", lcbPtr->driverName, "CONNECTED", &sockPtr); |
| 1456 | |
| 1457 | if (result == TCL_OK0) { |
| 1458 | Ns_GetTime(&now); |
| 1459 | connChanPtr = ConnChanCreate(sockPtr->servPtr, |
| 1460 | sockPtr, |
| 1461 | &now, |
| 1462 | NULL((void*)0), |
| 1463 | NS_TRUE1 /* binary, fixed for the time being */, |
| 1464 | NULL((void*)0)); |
| 1465 | Ns_Log(Notice, "SockListenCallback new connChan %s sock %d", connChanPtr->channelName, sock); |
| 1466 | } |
| 1467 | |
| 1468 | if (connChanPtr != NULL((void*)0)) { |
| 1469 | Tcl_DString script; |
| 1470 | |
| 1471 | Tcl_DStringInit(&script); |
| 1472 | Tcl_DStringAppend(&script, lcbPtr->script, -1); |
| 1473 | Tcl_DStringAppendElement(&script, connChanPtr->channelName); |
| 1474 | result = Tcl_EvalEx(interp, script.string, script.length, 0); |
| 1475 | Tcl_DStringFree(&script); |
| 1476 | if (result != TCL_OK0) { |
| 1477 | (void) Ns_TclLogErrorInfo(interp, "\n(context: connchan proc)"); |
| 1478 | } else { |
| 1479 | Tcl_Obj *objPtr = Tcl_GetObjResult(interp); |
| 1480 | int ok = 1; |
| 1481 | |
| 1482 | /* |
| 1483 | * The Tcl callback can signal with the result "0", |
| 1484 | * that the connection channel should be closed |
| 1485 | * automatically. |
| 1486 | */ |
| 1487 | result = Tcl_GetBooleanFromObj(interp, objPtr, &ok); |
| 1488 | if ((result == TCL_OK0) && (ok == 0)) { |
| 1489 | result = TCL_ERROR1; |
| 1490 | } |
| 1491 | } |
| 1492 | } |
| 1493 | |
| 1494 | Ns_TclDeAllocateInterp(interp); |
| 1495 | Tcl_DecrRefCount(listObj)do { Tcl_Obj *_objPtr = (listObj); if (_objPtr->refCount-- <= 1) { TclFreeObj(_objPtr); } } while(0); |
| 1496 | |
| 1497 | return (result == TCL_OK0); |
| 1498 | } |
| 1499 | |
| 1500 | |
| 1501 | /* |
| 1502 | *---------------------------------------------------------------------- |
| 1503 | * |
| 1504 | * ConnChanListObjCmd -- |
| 1505 | * |
| 1506 | * Implements "ns_connchan list". |
| 1507 | * |
| 1508 | * Results: |
| 1509 | * A standard Tcl result. |
| 1510 | * |
| 1511 | * Side effects: |
| 1512 | * Depends on subcommand. |
| 1513 | * |
| 1514 | *---------------------------------------------------------------------- |
| 1515 | */ |
| 1516 | static int |
| 1517 | ConnChanListObjCmd(ClientData UNUSED(clientData)UNUSED_clientData __attribute__((__unused__)), Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1518 | { |
| 1519 | //const NsInterp *itPtr = clientData; |
| 1520 | NsServer *servPtr = NsGetServer(nsconf.defaultServer); //itPtr->servPtr; |
| 1521 | int result = TCL_OK0; |
| 1522 | Ns_ObjvSpec lopts[] = { |
| 1523 | {"-server", Ns_ObjvServer, &servPtr, NULL((void*)0)}, |
| 1524 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1525 | }; |
| 1526 | |
| 1527 | if (Ns_ParseObjv(lopts, NULL((void*)0), interp, 2, objc, objv) != NS_OK) { |
| 1528 | result = TCL_ERROR1; |
| 1529 | } |
| 1530 | |
| 1531 | if (result == TCL_OK0) { |
| 1532 | Tcl_HashSearch search; |
| 1533 | Tcl_HashEntry *hPtr; |
| 1534 | Tcl_DString ds, *dsPtr = &ds; |
| 1535 | |
| 1536 | /* |
| 1537 | * The provided parameters appear to be valid. Lock the channel |
| 1538 | * table and return the infos for every existing entry in the |
| 1539 | * connection channel table. |
| 1540 | */ |
| 1541 | Tcl_DStringInit(dsPtr); |
| 1542 | |
| 1543 | Ns_RWLockRdLock(&servPtr->connchans.lock); |
| 1544 | hPtr = Tcl_FirstHashEntry(&servPtr->connchans.table, &search); |
| 1545 | while (hPtr != NULL((void*)0)) { |
| 1546 | NsConnChan *connChanPtr; |
| 1547 | |
| 1548 | connChanPtr = (NsConnChan *)Tcl_GetHashValue(hPtr)((hPtr)->clientData); |
| 1549 | Ns_DStringPrintf(dsPtr, "{%s %s " NS_TIME_FMT"%" "l" "d" ".%06ld" " %s %s %" PRIdz"zd" " %" PRIdz"zd", |
| 1550 | (char *)Tcl_GetHashKey(&servPtr->connchans.table, hPtr)((void *) (((&servPtr->connchans.table)->keyType == (1) || (&servPtr->connchans.table)->keyType == (-1 )) ? (hPtr)->key.oneWordValue : (hPtr)->key.string)), |
| 1551 | ((connChanPtr->cbPtr != NULL((void*)0) && connChanPtr->cbPtr->threadName != NULL((void*)0)) ? |
| 1552 | connChanPtr->cbPtr->threadName : "{}"), |
| 1553 | (int64_t) connChanPtr->startTime.sec, connChanPtr->startTime.usec, |
| 1554 | connChanPtr->sockPtr->drvPtr->moduleName, |
| 1555 | (*connChanPtr->peer == '\0' ? "{}" : connChanPtr->peer), |
| 1556 | connChanPtr->wBytes, |
| 1557 | connChanPtr->rBytes); |
| 1558 | Ns_DStringAppendElementTcl_DStringAppendElement(dsPtr, |
| 1559 | (connChanPtr->clientData != NULL((void*)0)) ? connChanPtr->clientData : NS_EMPTY_STRING); |
| 1560 | /* |
| 1561 | * If we have a callback, write the cmd name. Rationale: |
| 1562 | * next arguments might contain already binary |
| 1563 | * data. Limitation: cmd name must not contain funny |
| 1564 | * characters. |
| 1565 | */ |
| 1566 | if (connChanPtr->cbPtr != NULL((void*)0)) { |
| 1567 | char whenBuffer[6]; |
| 1568 | |
| 1569 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, " ", 1); |
| 1570 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, connChanPtr->cbPtr->script, (int)connChanPtr->cbPtr->scriptCmdNameLength); |
| 1571 | Ns_DStringAppendElementTcl_DStringAppendElement(dsPtr, WhenToString(whenBuffer, connChanPtr->cbPtr->when)); |
| 1572 | } else { |
| 1573 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, " {} {}", 6); |
| 1574 | } |
| 1575 | |
| 1576 | /* |
| 1577 | * Terminate the list. |
| 1578 | */ |
| 1579 | Ns_DStringNAppendTcl_DStringAppend(dsPtr, "} ", 2); |
| 1580 | hPtr = Tcl_NextHashEntry(&search); |
| 1581 | } |
| 1582 | Ns_RWLockUnlock(&servPtr->connchans.lock); |
| 1583 | |
| 1584 | Tcl_DStringResult(interp, dsPtr); |
| 1585 | } |
| 1586 | return result; |
| 1587 | } |
| 1588 | |
| 1589 | /* |
| 1590 | *---------------------------------------------------------------------- |
| 1591 | * |
| 1592 | * ConnChanStatusObjCmd -- |
| 1593 | * |
| 1594 | * Implements "ns_connchan status". |
| 1595 | * |
| 1596 | * Results: |
| 1597 | * A standard Tcl result. |
| 1598 | * |
| 1599 | * Side effects: |
| 1600 | * None. |
| 1601 | * |
| 1602 | *---------------------------------------------------------------------- |
| 1603 | */ |
| 1604 | static int |
| 1605 | ConnChanStatusObjCmd(ClientData UNUSED(clientData)UNUSED_clientData __attribute__((__unused__)), Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1606 | { |
| 1607 | //const NsInterp *itPtr = clientData; |
| 1608 | NsServer *servPtr = NsGetServer(nsconf.defaultServer); //itPtr->servPtr; |
| 1609 | char *name = (char*)NS_EMPTY_STRING; |
| 1610 | int result = TCL_OK0; |
| 1611 | Ns_ObjvSpec lopts[] = { |
| 1612 | {"-server", Ns_ObjvServer, &servPtr, NULL((void*)0)}, |
| 1613 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1614 | }; |
| 1615 | Ns_ObjvSpec args[] = { |
| 1616 | {"channel", Ns_ObjvString, &name, NULL((void*)0)}, |
| 1617 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1618 | }; |
| 1619 | |
| 1620 | if (Ns_ParseObjv(lopts, args, interp, 2, objc, objv) != NS_OK) { |
| 1621 | result = TCL_ERROR1; |
| 1622 | } |
| 1623 | |
| 1624 | if (result == TCL_OK0) { |
| 1625 | NsConnChan *connChanPtr = ConnChanGet(interp, servPtr, name); |
| 1626 | |
| 1627 | if (connChanPtr != NULL((void*)0)) { |
| 1628 | Tcl_DString ds; |
| 1629 | Tcl_Obj *dictObj = Tcl_NewDictObj(); |
| 1630 | |
| 1631 | Tcl_DStringInit(&ds); |
| 1632 | Ns_DStringPrintf(&ds, NS_TIME_FMT"%" "l" "d" ".%06ld", (int64_t) connChanPtr->startTime.sec, connChanPtr->startTime.usec); |
| 1633 | |
| 1634 | Tcl_DictObjPut(NULL((void*)0), dictObj, |
| 1635 | Tcl_NewStringObj("start", 5), |
| 1636 | Tcl_NewStringObj(ds.string, ds.length)); |
| 1637 | Tcl_DictObjPut(NULL((void*)0), dictObj, |
| 1638 | Tcl_NewStringObj("driver", 6), |
| 1639 | Tcl_NewStringObj(connChanPtr->sockPtr->drvPtr->moduleName, -1)); |
| 1640 | Tcl_DictObjPut(NULL((void*)0), dictObj, |
| 1641 | Tcl_NewStringObj("peer", 4), |
| 1642 | Tcl_NewStringObj(*connChanPtr->peer == '\0' ? "" : connChanPtr->peer, -1)); |
| 1643 | Tcl_DictObjPut(NULL((void*)0), dictObj, |
| 1644 | Tcl_NewStringObj("sent", 4), |
| 1645 | Tcl_NewWideIntObj((Tcl_WideInt)connChanPtr->wBytes)); |
| 1646 | Tcl_DictObjPut(NULL((void*)0), dictObj, |
| 1647 | Tcl_NewStringObj("reveived", 8), |
| 1648 | Tcl_NewWideIntObj((Tcl_WideInt)connChanPtr->rBytes)); |
| 1649 | Tcl_DictObjPut(NULL((void*)0), dictObj, |
| 1650 | Tcl_NewStringObj("framebuffer", 8), |
| 1651 | Tcl_NewIntObj(ConnChanBufferSize(connChanPtr,frameBuffer)((connChanPtr)->frameBuffer != ((void*)0) ? (connChanPtr)-> frameBuffer->length : 0))); |
| 1652 | Tcl_DictObjPut(NULL((void*)0), dictObj, |
| 1653 | Tcl_NewStringObj("sendbuffer", 10), |
| 1654 | Tcl_NewIntObj(ConnChanBufferSize(connChanPtr,sendBuffer)((connChanPtr)->sendBuffer != ((void*)0) ? (connChanPtr)-> sendBuffer->length : 0))); |
| 1655 | Tcl_DictObjPut(NULL((void*)0), dictObj, |
| 1656 | Tcl_NewStringObj("fragments", 9), |
| 1657 | Tcl_NewIntObj(ConnChanBufferSize(connChanPtr,fragmentsBuffer)((connChanPtr)->fragmentsBuffer != ((void*)0) ? (connChanPtr )->fragmentsBuffer->length : 0))); |
| 1658 | |
| 1659 | if (connChanPtr->cbPtr != NULL((void*)0)) { |
| 1660 | char whenBuffer[6]; |
| 1661 | |
| 1662 | Tcl_DictObjPut(NULL((void*)0), dictObj, Tcl_NewStringObj("callback", 8), |
| 1663 | Tcl_NewStringObj(connChanPtr->cbPtr->script, -1)); |
| 1664 | Tcl_DictObjPut(NULL((void*)0), dictObj, Tcl_NewStringObj("condition", 9), |
| 1665 | Tcl_NewStringObj(WhenToString(whenBuffer, connChanPtr->cbPtr->when), -1)); |
| 1666 | } |
| 1667 | Tcl_DStringFree(&ds); |
| 1668 | Tcl_SetObjResult(interp, dictObj); |
| 1669 | |
| 1670 | } else { |
| 1671 | result = TCL_ERROR1; |
| 1672 | } |
| 1673 | } |
| 1674 | return result; |
| 1675 | } |
| 1676 | |
| 1677 | |
| 1678 | /* |
| 1679 | *---------------------------------------------------------------------- |
| 1680 | * |
| 1681 | * ConnChanCloseObjCmd -- |
| 1682 | * |
| 1683 | * Implements "ns_connchan close". |
| 1684 | * |
| 1685 | * Results: |
| 1686 | * A standard Tcl result. |
| 1687 | * |
| 1688 | * Side effects: |
| 1689 | * Depends on subcommand. |
| 1690 | * |
| 1691 | *---------------------------------------------------------------------- |
| 1692 | */ |
| 1693 | static int |
| 1694 | ConnChanCloseObjCmd(ClientData UNUSED(clientData)UNUSED_clientData __attribute__((__unused__)), Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1695 | { |
| 1696 | //const NsInterp *itPtr = clientData; |
| 1697 | NsServer *servPtr = NsGetServer(nsconf.defaultServer); //itPtr->servPtr; |
| 1698 | char *name = (char*)NS_EMPTY_STRING; |
| 1699 | int result = TCL_OK0; |
| 1700 | Ns_ObjvSpec lopts[] = { |
| 1701 | {"-server", Ns_ObjvServer, &servPtr, NULL((void*)0)}, |
| 1702 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1703 | }; |
| 1704 | Ns_ObjvSpec args[] = { |
| 1705 | {"channel", Ns_ObjvString, &name, NULL((void*)0)}, |
| 1706 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1707 | }; |
| 1708 | |
| 1709 | if (Ns_ParseObjv(lopts, args, interp, 2, objc, objv) != NS_OK) { |
| 1710 | result = TCL_ERROR1; |
| 1711 | |
| 1712 | } else { |
| 1713 | NsConnChan *connChanPtr = ConnChanGet(interp, servPtr, name); |
| 1714 | |
| 1715 | Ns_Log(Ns_LogConnchanDebug, "%s ns_connchan close connChanPtr %p", name, (void*)connChanPtr); |
| 1716 | |
| 1717 | if (connChanPtr != NULL((void*)0)) { |
| 1718 | ConnChanFree(connChanPtr, servPtr); |
| 1719 | } else { |
| 1720 | result = TCL_ERROR1; |
| 1721 | } |
| 1722 | |
| 1723 | } |
| 1724 | Ns_Log(Ns_LogConnchanDebug, "%s ns_connchan close returns %d", name, result); |
| 1725 | return result; |
| 1726 | } |
| 1727 | |
| 1728 | /* |
| 1729 | *---------------------------------------------------------------------- |
| 1730 | * |
| 1731 | * ConnChanCallbackObjCmd -- |
| 1732 | * |
| 1733 | * Implements "ns_connchan callback". |
| 1734 | * |
| 1735 | * Results: |
| 1736 | * A standard Tcl result. |
| 1737 | * |
| 1738 | * Side effects: |
| 1739 | * Depends on subcommand. |
| 1740 | * |
| 1741 | *---------------------------------------------------------------------- |
| 1742 | */ |
| 1743 | static int |
| 1744 | ConnChanCallbackObjCmd(ClientData UNUSED(clientData)UNUSED_clientData __attribute__((__unused__)), Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1745 | { |
| 1746 | int result = TCL_OK0; |
| 1747 | char *name = (char*)NS_EMPTY_STRING, |
| 1748 | *script = (char*)NS_EMPTY_STRING, |
| 1749 | *whenString = (char*)NS_EMPTY_STRING; |
| 1750 | Ns_Time *pollTimeoutPtr = NULL((void*)0), *recvTimeoutPtr = NULL((void*)0), *sendTimeoutPtr = NULL((void*)0); |
| 1751 | |
| 1752 | Ns_ObjvSpec lopts[] = { |
| 1753 | {"-timeout", Ns_ObjvTime, &pollTimeoutPtr, NULL((void*)0)}, |
| 1754 | {"-receivetimeout", Ns_ObjvTime, &recvTimeoutPtr, NULL((void*)0)}, |
| 1755 | {"-sendtimeout", Ns_ObjvTime, &sendTimeoutPtr, NULL((void*)0)}, |
| 1756 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1757 | }; |
| 1758 | Ns_ObjvSpec args[] = { |
| 1759 | {"channel", Ns_ObjvString, &name, NULL((void*)0)}, |
| 1760 | {"script", Ns_ObjvString, &script, NULL((void*)0)}, |
| 1761 | {"when", Ns_ObjvString, &whenString, NULL((void*)0)}, |
| 1762 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1763 | }; |
| 1764 | |
| 1765 | if (Ns_ParseObjv(lopts, args, interp, 2, objc, objv) != NS_OK) { |
| 1766 | result = TCL_ERROR1; |
| 1767 | } else { |
| 1768 | //const NsInterp *itPtr = clientData; |
| 1769 | NsServer *servPtr = NsGetServer(nsconf.defaultServer); //itPtr->servPtr; |
| 1770 | NsConnChan *connChanPtr = ConnChanGet(interp, servPtr, name); |
| 1771 | size_t whenStrlen = strlen(whenString); |
| 1772 | |
| 1773 | assert(whenString != NULL)((void) (0)); |
| 1774 | |
| 1775 | if (unlikely(connChanPtr == NULL)(__builtin_expect((connChanPtr == ((void*)0)), 0))) { |
| 1776 | result = TCL_ERROR1; |
| 1777 | } else if (whenStrlen == 0 || whenStrlen > 4) { |
| 1778 | |
| 1779 | Ns_TclPrintfResult(interp, "invalid when specification: \"%s\":" |
| 1780 | " should be one/more of r, w, e, or x", whenString); |
| 1781 | result = TCL_ERROR1; |
| 1782 | |
| 1783 | } else { |
| 1784 | /* |
| 1785 | * The provided channel name exists. In a first step get |
| 1786 | * the flags from the when string. |
| 1787 | */ |
| 1788 | unsigned int when = 0u; |
| 1789 | const char *s = whenString; |
| 1790 | |
| 1791 | while (*s != '\0') { |
| 1792 | if (*s == 'r') { |
| 1793 | when |= (unsigned int)NS_SOCK_READ; |
| 1794 | } else if (*s == 'w') { |
| 1795 | when |= (unsigned int)NS_SOCK_WRITE; |
| 1796 | } else if (*s == 'e') { |
| 1797 | when |= (unsigned int)NS_SOCK_EXCEPTION; |
| 1798 | } else if (*s == 'x') { |
| 1799 | when |= (unsigned int)NS_SOCK_EXIT; |
| 1800 | } else { |
| 1801 | Ns_TclPrintfResult(interp, "invalid when specification: \"%s\":" |
| 1802 | " should be one/more of r, w, e, or x", whenString); |
| 1803 | result = TCL_ERROR1; |
| 1804 | break; |
| 1805 | } |
| 1806 | s++; |
| 1807 | } |
| 1808 | |
| 1809 | if (result == TCL_OK0) { |
| 1810 | Ns_ReturnCode status; |
| 1811 | |
| 1812 | Ns_RWLockWrLock(&servPtr->connchans.lock); |
| 1813 | |
| 1814 | /* |
| 1815 | * Fill in the timeouts, when these are provided. |
| 1816 | */ |
| 1817 | if (recvTimeoutPtr != NULL((void*)0)) { |
| 1818 | connChanPtr->recvTimeout = *recvTimeoutPtr; |
| 1819 | } |
| 1820 | if (sendTimeoutPtr != NULL((void*)0)) { |
| 1821 | connChanPtr->sendTimeout = *sendTimeoutPtr; |
| 1822 | } |
| 1823 | |
| 1824 | /* |
| 1825 | * Register the callback. This function call might set |
| 1826 | * "connChanPtr->sockPtr = NULL;", therefore, we can't |
| 1827 | * derive always the servPtr from the |
| 1828 | * connChanPtr->sockPtr and we have to pass the |
| 1829 | * servPtr to ConnChanFree(). |
| 1830 | */ |
| 1831 | status = SockCallbackRegister(connChanPtr, script, when, pollTimeoutPtr); |
| 1832 | |
| 1833 | if (unlikely(status != NS_OK)(__builtin_expect((status != NS_OK), 0))) { |
| 1834 | Ns_TclPrintfResult(interp, "could not register callback"); |
| 1835 | servPtr = NsGetServer(nsconf.defaultServer); // temporarily added |
| 1836 | ConnChanFree(connChanPtr, servPtr); |
| 1837 | result = TCL_ERROR1; |
| 1838 | } |
| 1839 | Ns_RWLockUnlock(&servPtr->connchans.lock); |
| 1840 | } |
| 1841 | } |
| 1842 | } |
| 1843 | Ns_Log(Ns_LogConnchanDebug, "%s ns_connchan callback returns %d", name, result); |
| 1844 | return result; |
| 1845 | } |
| 1846 | |
| 1847 | /* |
| 1848 | *---------------------------------------------------------------------- |
| 1849 | * |
| 1850 | * ConnChanExistsObjCmd -- |
| 1851 | * |
| 1852 | * Implements "ns_connchan exists". |
| 1853 | * |
| 1854 | * Results: |
| 1855 | * A standard Tcl result. |
| 1856 | * |
| 1857 | * Side effects: |
| 1858 | * Depends on subcommand. |
| 1859 | * |
| 1860 | *---------------------------------------------------------------------- |
| 1861 | */ |
| 1862 | static int |
| 1863 | ConnChanExistsObjCmd(ClientData UNUSED(clientData)UNUSED_clientData __attribute__((__unused__)), Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 1864 | { |
| 1865 | char *name = (char*)NS_EMPTY_STRING; |
| 1866 | int result = TCL_OK0; |
| 1867 | Ns_ObjvSpec args[] = { |
| 1868 | {"channel", Ns_ObjvString, &name, NULL((void*)0)}, |
| 1869 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 1870 | }; |
| 1871 | |
| 1872 | if (Ns_ParseObjv(NULL((void*)0), args, interp, 2, objc, objv) != NS_OK) { |
| 1873 | result = TCL_ERROR1; |
| 1874 | } else { |
| 1875 | //const NsInterp *itPtr = clientData; |
| 1876 | NsServer *servPtr = NsGetServer(nsconf.defaultServer); //itPtr->servPtr; |
| 1877 | const NsConnChan *connChanPtr; |
| 1878 | |
| 1879 | connChanPtr = ConnChanGet(interp, servPtr, name); |
| 1880 | Tcl_SetObjResult(interp, Tcl_NewBooleanObj(connChanPtr != NULL)Tcl_NewIntObj((connChanPtr != ((void*)0))!=0)); |
| 1881 | } |
| 1882 | |
| 1883 | Ns_Log(Ns_LogConnchanDebug, "%s ns_connchan exists returns %d", name, result); |
| 1884 | return result; |
| 1885 | } |
| 1886 | |
| 1887 | /* |
| 1888 | *---------------------------------------------------------------------- |
| 1889 | * |
| 1890 | * ConnChanReadBuffer -- |
| 1891 | * |
| 1892 | * Read from a connchan into a provided buffer. In essence, this |
| 1893 | * function performs timeout setup and handles NS_SOCK_AGAIN. |
| 1894 | * |
| 1895 | * Results: |
| 1896 | * Number of bytes read or -1 on error. |
| 1897 | * |
| 1898 | * Side effects: |
| 1899 | * None. |
| 1900 | * |
| 1901 | *---------------------------------------------------------------------- |
| 1902 | */ |
| 1903 | static ssize_t |
| 1904 | ConnChanReadBuffer(NsConnChan *connChanPtr, char *buffer, size_t bufferSize) |
| 1905 | { |
| 1906 | ssize_t nRead = 0; |
| 1907 | struct iovec buf; |
| 1908 | Ns_Time *timeoutPtr, timeout; |
| 1909 | |
| 1910 | /* |
| 1911 | * Read the data via the "receive" operation of the driver. |
| 1912 | */ |
| 1913 | buf.iov_base = buffer; |
| 1914 | buf.iov_len = bufferSize; |
| 1915 | |
| 1916 | timeoutPtr = &connChanPtr->recvTimeout; |
| 1917 | if (timeoutPtr->sec == 0 && timeoutPtr->usec == 0) { |
| 1918 | /* |
| 1919 | * No timeout was specified, use the configured receivewait of |
| 1920 | * the driver as timeout. |
| 1921 | */ |
| 1922 | timeout.sec = connChanPtr->sockPtr->drvPtr->recvwait.sec; |
| 1923 | timeout.usec = connChanPtr->sockPtr->drvPtr->recvwait.usec; |
| 1924 | timeoutPtr = &timeout; |
| 1925 | } |
| 1926 | |
| 1927 | /* |
| 1928 | * In case we see an NS_SOCK_AGAIN, retry. We could make |
| 1929 | * this behavior optional via argument, but with OpenSSL, |
| 1930 | * this seems to happen quite often. |
| 1931 | */ |
| 1932 | for (;;) { |
| 1933 | nRead = NsDriverRecv(connChanPtr->sockPtr, &buf, 1, timeoutPtr); |
| 1934 | Ns_Log(Ns_LogConnchanDebug, "%s ns_connchan NsDriverRecv %" PRIdz"zd" |
| 1935 | " bytes recvSockState %.4x (driver %s)", connChanPtr->channelName, nRead, |
| 1936 | connChanPtr->sockPtr->recvSockState, |
| 1937 | connChanPtr->sockPtr->drvPtr->moduleName); |
| 1938 | if (nRead == 0 && connChanPtr->sockPtr->recvSockState == NS_SOCK_AGAIN) { |
| 1939 | continue; |
| 1940 | } |
| 1941 | break; |
| 1942 | } |
| 1943 | Ns_Log(Ns_LogConnchanDebug, "%s ns_connchan NsDriverRecv %" PRIdz"zd" " bytes", |
| 1944 | connChanPtr->channelName, nRead); |
| 1945 | |
| 1946 | return nRead; |
| 1947 | } |
| 1948 | |
| 1949 | /* |
| 1950 | *---------------------------------------------------------------------- |
| 1951 | * |
| 1952 | * RequireDsBuffer -- |
| 1953 | * |
| 1954 | * Make sure, the DS buffer is allocated. |
| 1955 | * |
| 1956 | * Results: |
| 1957 | * None. |
| 1958 | * |
| 1959 | * Side effects: |
| 1960 | * Potentially updates dsPtr which is passed as an argument |
| 1961 | * |
| 1962 | *---------------------------------------------------------------------- |
| 1963 | */ |
| 1964 | static void |
| 1965 | RequireDsBuffer(Tcl_DString **dsPtr) { |
| 1966 | NS_NONNULL_ASSERT(dsPtr != NULL)((void) (0)); |
| 1967 | |
| 1968 | if (*dsPtr == NULL((void*)0)) { |
| 1969 | *dsPtr = ns_malloc(sizeof(Tcl_DString)); |
| 1970 | Tcl_DStringInit(*dsPtr); |
| 1971 | } |
| 1972 | } |
| 1973 | |
| 1974 | /* |
| 1975 | *---------------------------------------------------------------------- |
| 1976 | * |
| 1977 | * WebsocketFrameSetCommonMembers -- |
| 1978 | * |
| 1979 | * Set common members of the dict, which are part of the result of |
| 1980 | * every GetWebsocketFrame() operation. |
| 1981 | * |
| 1982 | * Results: |
| 1983 | * None. |
| 1984 | * |
| 1985 | * Side effects: |
| 1986 | * None. |
| 1987 | * |
| 1988 | *---------------------------------------------------------------------- |
| 1989 | */ |
| 1990 | static void |
| 1991 | WebsocketFrameSetCommonMembers(Tcl_Obj *resultObj, ssize_t nRead, const NsConnChan *connChanPtr) |
| 1992 | { |
| 1993 | NS_NONNULL_ASSERT(resultObj != NULL)((void) (0)); |
| 1994 | NS_NONNULL_ASSERT(connChanPtr != NULL)((void) (0)); |
| 1995 | |
| 1996 | Tcl_DictObjPut(NULL((void*)0), resultObj, Tcl_NewStringObj("bytes", 5), |
| 1997 | Tcl_NewLongObj((long)nRead)); |
| 1998 | Tcl_DictObjPut(NULL((void*)0), resultObj, Tcl_NewStringObj("unprocessed", 11), |
| 1999 | Tcl_NewIntObj(connChanPtr->frameBuffer->length)); |
| 2000 | Tcl_DictObjPut(NULL((void*)0), resultObj, Tcl_NewStringObj("fragments", 9), |
| 2001 | Tcl_NewIntObj(ConnChanBufferSize(connChanPtr,fragmentsBuffer)((connChanPtr)->fragmentsBuffer != ((void*)0) ? (connChanPtr )->fragmentsBuffer->length : 0))); |
| 2002 | Tcl_DictObjPut(NULL((void*)0), resultObj, Tcl_NewStringObj("havedata", 8), |
| 2003 | Tcl_NewIntObj(!connChanPtr->frameNeedsData)); |
| 2004 | } |
| 2005 | |
| 2006 | /* |
| 2007 | *---------------------------------------------------------------------- |
| 2008 | * |
| 2009 | * GetWebsocketFrame -- |
| 2010 | * |
| 2011 | * Frame handling for incoming WebSockets. This function checks, |
| 2012 | * if the data read so far is a complete WebSocket frame |
| 2013 | * (potentially consisting of multiple fragments) and returns the |
| 2014 | * results in form of a Tcl dict. To handle partial frames or |
| 2015 | * surplus data, the command performs socket level buffering based |
| 2016 | * on Tcl_DStrings. |
| 2017 | * |
| 2018 | * Results: |
| 2019 | * Tcl dict containing "fin" status bit, "frame" state (incomplete |
| 2020 | * or complete), "unprocessed" (received data in buffer not |
| 2021 | * handled so far), "haveData" (boolean value to express that |
| 2022 | * unprocessed data might be sufficient for next frame. |
| 2023 | * |
| 2024 | * In case the frame is finished, the dict contains as well the |
| 2025 | * WebSocket "opcode" and "payload" of the frame. |
| 2026 | * |
| 2027 | * Side effects: |
| 2028 | * None. |
| 2029 | * |
| 2030 | *---------------------------------------------------------------------- |
| 2031 | */ |
| 2032 | |
| 2033 | static Tcl_Obj* |
| 2034 | GetWebsocketFrame(NsConnChan *connChanPtr, char *buffer, ssize_t nRead) |
| 2035 | { |
| 2036 | unsigned char *data; |
| 2037 | bool_Bool finished, masked; |
| 2038 | int opcode, frameLength, fragmentsBufferLength; |
| 2039 | size_t payloadLength, offset; |
| 2040 | unsigned char mask[4] = {0u,0u,0u,0u}; |
| 2041 | Tcl_Obj *resultObj; |
| 2042 | |
| 2043 | resultObj = Tcl_NewDictObj(); |
| 2044 | |
| 2045 | if (nRead < 0) { |
| 2046 | goto exception; |
| 2047 | } |
| 2048 | |
| 2049 | Ns_Log(Ns_LogConnchanDebug, "WS: received %ld bytes, have already %d", |
| 2050 | nRead, ConnChanBufferSize(connChanPtr, frameBuffer)((connChanPtr)->frameBuffer != ((void*)0) ? (connChanPtr)-> frameBuffer->length : 0)); |
| 2051 | /* |
| 2052 | * Make sure, the frame buffer exists. |
| 2053 | */ |
| 2054 | RequireDsBuffer(&connChanPtr->frameBuffer); |
| 2055 | |
| 2056 | /* |
| 2057 | * Append the newly read data. |
| 2058 | */ |
| 2059 | Tcl_DStringAppend(connChanPtr->frameBuffer, buffer, (int)nRead); |
| 2060 | |
| 2061 | /* |
| 2062 | * On very small buffers, the interpretation of the first bytes |
| 2063 | * does not make sense. We need at least 2 bytes (on the |
| 2064 | * connections 6, including the mask). |
| 2065 | */ |
| 2066 | if (connChanPtr->frameBuffer->length < 3) { |
| 2067 | frameLength = 0; |
| 2068 | goto incomplete; |
| 2069 | } |
| 2070 | |
| 2071 | /* |
| 2072 | * Check, if frame is complete. |
| 2073 | */ |
| 2074 | data = (unsigned char *)connChanPtr->frameBuffer->string; |
| 2075 | |
| 2076 | finished = ((data[0] & 0x80u) != 0); |
| 2077 | masked = ((data[1] & 0x80u) != 0); |
| 2078 | opcode = (data[0] & 0x0Fu); |
| 2079 | payloadLength = (data[1] & 0x7Fu); |
| 2080 | |
| 2081 | if (payloadLength <= 125) { |
| 2082 | offset = 2; |
| 2083 | } else if (payloadLength == 126) { |
| 2084 | uint16_t len16 = 0; |
| 2085 | |
| 2086 | memcpy(&len16, &data[2], 2); |
| 2087 | payloadLength = be16toh(len16)__bswap_16 (len16); |
| 2088 | offset = 4; |
| 2089 | } else { |
| 2090 | uint64_t len64 = 0; |
| 2091 | |
| 2092 | memcpy(&len64, &data[2], 8); |
| 2093 | payloadLength = be64toh(len64)__bswap_64 (len64); |
| 2094 | offset = 10; |
| 2095 | } |
| 2096 | |
| 2097 | if (masked) { |
| 2098 | /* |
| 2099 | * Initialize mask; |
| 2100 | */ |
| 2101 | memcpy(&mask, &data[offset], 4); |
| 2102 | offset += 4; |
| 2103 | } |
| 2104 | |
| 2105 | frameLength = (int)(offset + payloadLength); |
| 2106 | if (connChanPtr->frameBuffer->length < (int)frameLength) { |
| 2107 | goto incomplete; |
| 2108 | } |
| 2109 | |
| 2110 | Tcl_DictObjPut(NULL((void*)0), resultObj, Tcl_NewStringObj("fin", 3), Tcl_NewIntObj(finished)); |
| 2111 | Tcl_DictObjPut(NULL((void*)0), resultObj, Tcl_NewStringObj("frame", 5), Tcl_NewStringObj("complete", 8)); |
| 2112 | |
| 2113 | if (!finished) { |
| 2114 | Ns_Log(Warning, "WS: unfinished frame, bytes %ld payload length %zu offset %zu " |
| 2115 | "avail %d opcode %d fin %d, masked %d", |
| 2116 | nRead, payloadLength, offset, connChanPtr->frameBuffer->length, |
| 2117 | opcode, finished, masked); |
| 2118 | |
| 2119 | /*{ int i; for(i=0; i<connChanPtr->frameBuffer->length; i++) { |
| 2120 | fprintf(stderr,"%.2x",connChanPtr->frameBuffer->string[i]&0xFF); |
| 2121 | } |
| 2122 | fprintf(stderr, "\n"); |
| 2123 | }*/ |
| 2124 | } |
| 2125 | |
| 2126 | if (masked) { |
| 2127 | size_t i, j; |
| 2128 | |
| 2129 | for( i = offset, j = 0u; j < payloadLength; i++, j++ ) { |
| 2130 | data[ i ] = data[ i ] ^ mask[ j % 4]; |
| 2131 | } |
| 2132 | } |
| 2133 | |
| 2134 | fragmentsBufferLength = ConnChanBufferSize(connChanPtr, fragmentsBuffer)((connChanPtr)->fragmentsBuffer != ((void*)0) ? (connChanPtr )->fragmentsBuffer->length : 0); |
| 2135 | |
| 2136 | if (finished) { |
| 2137 | Tcl_Obj *payloadObj; |
| 2138 | /* |
| 2139 | * The "fin" bit is set, this message is complete. If we have |
| 2140 | * fragments, append the new data to the fragments already |
| 2141 | * have received and clear the fragments buffer. |
| 2142 | */ |
| 2143 | |
| 2144 | if (fragmentsBufferLength == 0) { |
| 2145 | payloadObj = Tcl_NewByteArrayObj(&data[offset], (int)payloadLength); |
| 2146 | } else { |
| 2147 | Tcl_DStringAppend(connChanPtr->fragmentsBuffer, |
| 2148 | (const char *)&data[offset], (int)payloadLength); |
| 2149 | payloadObj = Tcl_NewByteArrayObj((const unsigned char *)connChanPtr->fragmentsBuffer->string, |
| 2150 | connChanPtr->fragmentsBuffer->length); |
| 2151 | Ns_Log(Ns_LogConnchanDebug, |
| 2152 | "WS: append final payload opcode %d (fragments opcode %d) %d bytes, " |
| 2153 | "totaling %d bytes, clear fragmentsBuffer", |
| 2154 | opcode, connChanPtr->fragmentsOpcode, |
| 2155 | (int)payloadLength, connChanPtr->fragmentsBuffer->length); |
| 2156 | Tcl_DStringSetLength(connChanPtr->fragmentsBuffer, 0); |
| 2157 | opcode = connChanPtr->fragmentsOpcode; |
| 2158 | } |
| 2159 | Tcl_DictObjPut(NULL((void*)0), resultObj, |
| 2160 | Tcl_NewStringObj("opcode", 6), |
| 2161 | Tcl_NewIntObj(opcode)); |
| 2162 | Tcl_DictObjPut(NULL((void*)0), resultObj, |
| 2163 | Tcl_NewStringObj("payload", 7), |
| 2164 | payloadObj); |
| 2165 | } else { |
| 2166 | /* |
| 2167 | * The "fin" bit is not set, we have a segment, but not the |
| 2168 | * complete message. Append the reveived frame to the |
| 2169 | * fragments buffer. |
| 2170 | */ |
| 2171 | RequireDsBuffer(&connChanPtr->fragmentsBuffer); |
| 2172 | /* |
| 2173 | * On the first fragment, keep the opcode since we will need |
| 2174 | * it for delivering the full message. |
| 2175 | */ |
| 2176 | if (fragmentsBufferLength == 0) { |
| 2177 | connChanPtr->fragmentsOpcode = opcode; |
| 2178 | } |
| 2179 | Tcl_DStringAppend(connChanPtr->fragmentsBuffer, |
| 2180 | (const char *)&data[offset], (int)payloadLength); |
| 2181 | Ns_Log(Ns_LogConnchanDebug, |
| 2182 | "WS: fin 0 opcode %d (fragments opcode %d) " |
| 2183 | "append %d to bytes to the fragmentsBuffer, totaling %d bytes", |
| 2184 | opcode, connChanPtr->fragmentsOpcode, |
| 2185 | (int)payloadLength, connChanPtr->fragmentsBuffer->length); |
| 2186 | } |
| 2187 | /* |
| 2188 | * Finally, compact the frameBuffer. |
| 2189 | */ |
| 2190 | if (connChanPtr->frameBuffer->length > frameLength) { |
| 2191 | int copyLength = connChanPtr->frameBuffer->length - frameLength; |
| 2192 | |
| 2193 | memmove(connChanPtr->frameBuffer->string, |
| 2194 | connChanPtr->frameBuffer->string + frameLength, |
| 2195 | (size_t)copyLength); |
| 2196 | Tcl_DStringSetLength(connChanPtr->frameBuffer, copyLength); |
| 2197 | //fprintf(stderr, "WS: leftover %d bytes\n", connChanPtr->frameBuffer->length); |
| 2198 | connChanPtr->frameNeedsData = NS_FALSE0; |
| 2199 | } else { |
| 2200 | connChanPtr->frameNeedsData = NS_TRUE1; |
| 2201 | Tcl_DStringSetLength(connChanPtr->frameBuffer, 0); |
| 2202 | } |
| 2203 | WebsocketFrameSetCommonMembers(resultObj, nRead, connChanPtr); |
| 2204 | return resultObj; |
| 2205 | |
| 2206 | incomplete: |
| 2207 | connChanPtr->frameNeedsData = NS_TRUE1; |
| 2208 | Ns_Log(Notice, "WS: incomplete frameLength %d avail %d", |
| 2209 | frameLength, connChanPtr->frameBuffer->length); |
| 2210 | Tcl_DictObjPut(NULL((void*)0), resultObj, Tcl_NewStringObj("frame", 5), Tcl_NewStringObj("incomplete", 10)); |
| 2211 | WebsocketFrameSetCommonMembers(resultObj, nRead, connChanPtr); |
| 2212 | return resultObj; |
| 2213 | |
| 2214 | exception: |
| 2215 | connChanPtr->frameNeedsData = NS_FALSE0; |
| 2216 | Tcl_DictObjPut(NULL((void*)0), resultObj, |
| 2217 | Tcl_NewStringObj("frame", 5), |
| 2218 | Tcl_NewStringObj("exception", 10)); |
| 2219 | WebsocketFrameSetCommonMembers(resultObj, nRead, connChanPtr); |
| 2220 | return resultObj; |
| 2221 | } |
| 2222 | |
| 2223 | |
| 2224 | /* |
| 2225 | *---------------------------------------------------------------------- |
| 2226 | * |
| 2227 | * ConnChanReadObjCmd -- |
| 2228 | * |
| 2229 | * Implements "ns_connchan read". |
| 2230 | * |
| 2231 | * Results: |
| 2232 | * A standard Tcl result. |
| 2233 | * |
| 2234 | * Side effects: |
| 2235 | * Depends on subcommand. |
| 2236 | * |
| 2237 | *---------------------------------------------------------------------- |
| 2238 | */ |
| 2239 | static int |
| 2240 | ConnChanReadObjCmd(ClientData UNUSED(clientData)UNUSED_clientData __attribute__((__unused__)), Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 2241 | { |
| 2242 | char *name = (char*)NS_EMPTY_STRING; |
| 2243 | int result = TCL_OK0, webSocketFrame = 0; |
| 2244 | Ns_ObjvSpec opts[] = { |
| 2245 | {"-websocket", Ns_ObjvBool, &webSocketFrame, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 2246 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 2247 | }; |
| 2248 | Ns_ObjvSpec args[] = { |
| 2249 | {"channel", Ns_ObjvString, &name, NULL((void*)0)}, |
| 2250 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 2251 | }; |
| 2252 | if (Ns_ParseObjv(opts, args, interp, 2, objc, objv) != NS_OK) { |
| 2253 | result = TCL_ERROR1; |
| 2254 | } else { |
| 2255 | //const NsInterp *itPtr = clientData; |
| 2256 | NsServer *servPtr = NsGetServer(nsconf.defaultServer); //itPtr->servPtr; |
| 2257 | NsConnChan *connChanPtr = ConnChanGet(interp, servPtr, name); |
| 2258 | |
| 2259 | if (unlikely(connChanPtr == NULL)(__builtin_expect((connChanPtr == ((void*)0)), 0))) { |
| 2260 | result = TCL_ERROR1; |
| 2261 | } else { |
| 2262 | /* |
| 2263 | * The provided channel exists. |
| 2264 | */ |
| 2265 | ssize_t nRead; |
| 2266 | char buffer[16384]; //buffer[16384]; |
| 2267 | |
| 2268 | if (!connChanPtr->binary) { |
| 2269 | Ns_Log(Warning, "ns_connchan: only binary channels are currently supported. " |
| 2270 | "Channel %s is not binary", name); |
| 2271 | } |
| 2272 | |
| 2273 | if ( webSocketFrame == 0 || connChanPtr->frameNeedsData) { |
| 2274 | nRead = ConnChanReadBuffer(connChanPtr, buffer, sizeof(buffer)); |
| 2275 | if (nRead < 0) { |
| 2276 | const char *errorMsg; |
| 2277 | |
| 2278 | errorMsg = NsSockSetRecvErrorCode(connChanPtr->sockPtr, interp); |
| 2279 | Tcl_SetObjResult(interp, Tcl_NewStringObj(errorMsg, -1)); |
| 2280 | result = TCL_ERROR1; |
| 2281 | |
| 2282 | } else if (webSocketFrame == 0 && nRead > 0) { |
| 2283 | connChanPtr->rBytes += (size_t)nRead; |
| 2284 | Tcl_SetObjResult(interp, Tcl_NewByteArrayObj((unsigned char *)buffer, (int)nRead)); |
| 2285 | } else if (webSocketFrame == 1) { |
| 2286 | connChanPtr->rBytes += (size_t)nRead; |
| 2287 | Tcl_SetObjResult(interp, GetWebsocketFrame(connChanPtr, buffer, nRead)); |
| 2288 | } else { |
| 2289 | /* |
| 2290 | * The receive operation failed, maybe a receive |
| 2291 | * timeout happened. The read call will simply return |
| 2292 | * an empty string. We could notice this fact |
| 2293 | * internally by a timeout counter, but for the time |
| 2294 | * being no application has usage for it. |
| 2295 | */ |
| 2296 | } |
| 2297 | } else { |
| 2298 | Tcl_SetObjResult(interp, GetWebsocketFrame(connChanPtr, buffer, 0)); |
| 2299 | } |
| 2300 | } |
| 2301 | } |
| 2302 | |
| 2303 | Ns_Log(Ns_LogConnchanDebug, "%s ns_connchan read returns %d", name, result); |
| 2304 | |
| 2305 | return result; |
| 2306 | } |
| 2307 | |
| 2308 | /* |
| 2309 | *---------------------------------------------------------------------- |
| 2310 | * |
| 2311 | * ConnChanWriteObjCmd -- |
| 2312 | * |
| 2313 | * Implements "ns_connchan write". |
| 2314 | * |
| 2315 | * Results: |
| 2316 | * A standard Tcl result. |
| 2317 | * |
| 2318 | * Side effects: |
| 2319 | * Depends on subcommand. |
| 2320 | * |
| 2321 | *---------------------------------------------------------------------- |
| 2322 | */ |
| 2323 | static int |
| 2324 | ConnChanWriteObjCmd(ClientData UNUSED(clientData)UNUSED_clientData __attribute__((__unused__)), Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 2325 | { |
| 2326 | char *name = (char*)NS_EMPTY_STRING; |
| 2327 | int result = TCL_OK0, buffered = 0; |
| 2328 | Tcl_Obj *msgObj; |
| 2329 | Ns_ObjvSpec opts[] = { |
| 2330 | {"-buffered", Ns_ObjvBool, &buffered, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 2331 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 2332 | }; |
| 2333 | Ns_ObjvSpec args[] = { |
| 2334 | {"channel", Ns_ObjvString, &name, NULL((void*)0)}, |
| 2335 | {"msg", Ns_ObjvObj, &msgObj, NULL((void*)0)}, |
| 2336 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 2337 | }; |
| 2338 | |
| 2339 | if (Ns_ParseObjv(opts, args, interp, 2, objc, objv) != NS_OK) { |
| 2340 | result = TCL_ERROR1; |
| 2341 | |
| 2342 | } else { |
| 2343 | //const NsInterp *itPtr = clientData; |
| 2344 | NsServer *servPtr = NsGetServer(nsconf.defaultServer); //itPtr->servPtr; |
| 2345 | NsConnChan *connChanPtr = ConnChanGet(interp, servPtr, name); |
| 2346 | |
| 2347 | if (unlikely(connChanPtr == NULL)(__builtin_expect((connChanPtr == ((void*)0)), 0))) { |
| 2348 | result = TCL_ERROR1; |
| 2349 | } else { |
| 2350 | /* |
| 2351 | * The provided channel name exists. |
| 2352 | */ |
| 2353 | struct iovec bufs[2]; |
| 2354 | ssize_t nSent; |
| 2355 | int msgLen, nBufs = 1, toSend; |
| 2356 | const char *msgString = (const char *)Tcl_GetByteArrayFromObj(msgObj, &msgLen); |
| 2357 | #ifdef WS_RECORD_OUTPUT |
| 2358 | static int FD; |
| 2359 | static char fnbuffer[100]; |
| 2360 | #endif |
| 2361 | if (!connChanPtr->binary) { |
| 2362 | Ns_Log(Warning, "ns_connchan: only binary channels are currently supported. " |
| 2363 | "Channel %s is not binary", name); |
| 2364 | } |
| 2365 | |
| 2366 | #ifdef WS_RECORD_OUTPUT |
| 2367 | if (connChanPtr->wBytes == 0) { |
| 2368 | snprintf(fnbuffer, sizeof(fnbuffer), "/tmp/OUT-XXXXXX")__builtin___snprintf_chk (fnbuffer, sizeof(fnbuffer), 2 - 1, __builtin_object_size (fnbuffer, 2 > 1), "/tmp/OUT-XXXXXX"); |
| 2369 | mktemp(fnbuffer); |
| 2370 | FD = open("/tmp/OUT", O_APPEND02000 | O_WRONLY01 | O_CREAT0100 | O_TRUNC01000, 0644); |
| 2371 | fprintf(stderr, "CREATED file %s fd %d\n", fnbuffer, FD)__fprintf_chk (stderr, 2 - 1, "CREATED file %s fd %d\n", fnbuffer , FD); |
| 2372 | } |
| 2373 | #endif |
| 2374 | |
| 2375 | /* |
| 2376 | * When buffered was not specified, but we have a |
| 2377 | * sendbuffer, fall outmatically into buffered mode. |
| 2378 | */ |
| 2379 | if (buffered == 0 && connChanPtr->sendBuffer != NULL((void*)0)) { |
| 2380 | Ns_Log(Notice, "ns_connchan send %s: force buffered", name); |
| 2381 | buffered = 1; |
| 2382 | } |
| 2383 | |
| 2384 | |
| 2385 | /* |
| 2386 | * Write the data via the "send" operation of the driver. |
| 2387 | */ |
| 2388 | if (msgLen > 0 && buffered && ConnChanBufferSize(connChanPtr, sendBuffer)((connChanPtr)->sendBuffer != ((void*)0) ? (connChanPtr)-> sendBuffer->length : 0) > 0) { |
| 2389 | bufs[0].iov_base = (void *)connChanPtr->sendBuffer->string; |
| 2390 | bufs[0].iov_len = (size_t)connChanPtr->sendBuffer->length; |
| 2391 | bufs[1].iov_base = (void *)msgString; |
| 2392 | bufs[1].iov_len = (size_t)msgLen; |
| 2393 | nBufs = 2; |
| 2394 | toSend = msgLen + connChanPtr->sendBuffer->length; |
| 2395 | } else if (msgLen == 0 && buffered && ConnChanBufferSize(connChanPtr, sendBuffer)((connChanPtr)->sendBuffer != ((void*)0) ? (connChanPtr)-> sendBuffer->length : 0) > 0) { |
| 2396 | bufs[0].iov_base = (void *)connChanPtr->sendBuffer->string; |
| 2397 | bufs[0].iov_len = (size_t)connChanPtr->sendBuffer->length; |
| 2398 | bufs[1].iov_len = 0u; |
| 2399 | toSend = connChanPtr->sendBuffer->length; |
| 2400 | Ns_Log(Ns_LogConnchanDebug, |
| 2401 | "WS: send buffered only msgLen == 0, buf length %zu toSend %d", |
| 2402 | bufs[0].iov_len, toSend); |
| 2403 | } else { |
| 2404 | bufs[0].iov_base = (void *)msgString; |
| 2405 | bufs[0].iov_len = (size_t)msgLen; |
| 2406 | bufs[1].iov_len = 0u; |
| 2407 | Ns_Log(Ns_LogConnchanDebug, "WS: send msgLen toSend %ld", bufs[0].iov_len); |
| 2408 | toSend = msgLen; |
| 2409 | } |
| 2410 | |
| 2411 | /*Ns_Log(Notice, "WS: send buffered before nbufs %d len[0] % " PRIdz |
| 2412 | ", len[1] %" PRIdz " len %d", |
| 2413 | nBufs, bufs[0].iov_len, bufs[1].iov_len, toSend);*/ |
| 2414 | |
| 2415 | if (toSend > 0) { |
| 2416 | nSent = ConnchanDriverSend(interp, connChanPtr, bufs, nBufs, 0u, |
| 2417 | &connChanPtr->sendTimeout); |
| 2418 | } else { |
| 2419 | nSent = 0; |
| 2420 | } |
| 2421 | |
| 2422 | /*Ns_Log(Notice, "WS: send buffered after nbufs %d len[0] %" PRIdz |
| 2423 | ", len[1] %" PRIdz " sent %" PRIdz, |
| 2424 | nBufs, bufs[0].iov_len, bufs[1].iov_len, nSent);*/ |
| 2425 | |
| 2426 | if (nSent > -1) { |
| 2427 | int remaining = toSend - (int)nSent; |
| 2428 | |
| 2429 | /*Ns_Log(Notice, "WS: send buffered %d msgLength %d nbufs %d to send %d sent %" PRIdz |
| 2430 | " remaining %d errno %d %s (BYTES from %" PRIdz " to %" PRIdz ")", |
| 2431 | buffered, msgLen, nBufs, toSend, nSent, remaining, |
| 2432 | ns_sockerrno, ns_sockstrerror(ns_sockerrno), |
| 2433 | connChanPtr->wBytes, connChanPtr->wBytes + (size_t)MIN(0,nSent));*/ |
| 2434 | |
| 2435 | connChanPtr->wBytes += (size_t)nSent; |
| 2436 | Tcl_SetObjResult(interp, Tcl_NewLongObj((long)nSent)); |
| 2437 | |
| 2438 | if (buffered && remaining > 0) { |
| 2439 | int freshDataRemaining; |
| 2440 | |
| 2441 | RequireDsBuffer(&connChanPtr->sendBuffer); |
| 2442 | /* |
| 2443 | * Compact old data. How much of the (old) sendBuffer was sent? |
| 2444 | */ |
| 2445 | if (nBufs == 2) { |
| 2446 | Ns_Log(Ns_LogConnchanDebug, "... two-buffer old buffer length %d + new %d" |
| 2447 | " = %d sent %ld (old not fully sent %d)", |
| 2448 | connChanPtr->sendBuffer->length, msgLen, |
| 2449 | connChanPtr->sendBuffer->length + msgLen, |
| 2450 | nSent, (connChanPtr->sendBuffer->length > nSent)); |
| 2451 | if (connChanPtr->sendBuffer->length > nSent) { |
| 2452 | /* |
| 2453 | * The old send buffer was not completely |
| 2454 | * sent. |
| 2455 | * |
| 2456 | * bufs[0].len is the unsent length, |
| 2457 | * bufs[0].base points to the begin of the |
| 2458 | * unset buffer. |
| 2459 | */ |
| 2460 | assert(bufs[0].iov_len > 0)((void) (0)); |
| 2461 | |
| 2462 | freshDataRemaining = msgLen; |
| 2463 | |
| 2464 | if (nSent>0) { |
| 2465 | Ns_Log(Ns_LogConnchanDebug, |
| 2466 | "... have sent part of old buffer %ld " |
| 2467 | "(BYTES from %" PRIdz"zd" " to %" PRIdz"zd" ")", |
| 2468 | nSent, |
| 2469 | connChanPtr->wBytes - (size_t)nSent, |
| 2470 | connChanPtr->wBytes); |
| 2471 | #ifdef WS_RECORD_OUTPUT |
| 2472 | write(FD, connChanPtr->sendBuffer->string, (size_t)nSent); |
| 2473 | //write(2, connChanPtr->sendBuffer->string, (size_t)nSent); |
| 2474 | fprintf(stderr, "\n")__fprintf_chk (stderr, 2 - 1, "\n"); |
| 2475 | #endif |
| 2476 | memmove(connChanPtr->sendBuffer->string, |
| 2477 | bufs[0].iov_base, |
| 2478 | bufs[0].iov_len); |
| 2479 | Tcl_DStringSetLength(connChanPtr->sendBuffer, (int)bufs[0].iov_len); |
| 2480 | } |
| 2481 | } else { |
| 2482 | /* |
| 2483 | * The old send buffer was fully sent, and |
| 2484 | * maybe some of the fresh data. |
| 2485 | */ |
| 2486 | assert(bufs[0].iov_len == 0)((void) (0)); |
| 2487 | Tcl_DStringSetLength(connChanPtr->sendBuffer, 0); |
| 2488 | |
| 2489 | freshDataRemaining = msgLen - (int)(nSent - connChanPtr->sendBuffer->length); |
| 2490 | Ns_Log(Ns_LogConnchanDebug, |
| 2491 | "... have sent all of old buffer %d and %ld of new buffer " |
| 2492 | "(BYTES from %" PRIdz"zd" " to %" PRIdz"zd" ")", |
| 2493 | connChanPtr->sendBuffer->length, |
| 2494 | (nSent - connChanPtr->sendBuffer->length), |
| 2495 | connChanPtr->wBytes - (size_t)nSent, connChanPtr->wBytes); |
| 2496 | #ifdef WS_RECORD_OUTPUT |
| 2497 | write(FD, connChanPtr->sendBuffer->string, (size_t)connChanPtr->sendBuffer->length); |
| 2498 | write(FD, msgString, (size_t)(nSent - connChanPtr->sendBuffer->length)); |
| 2499 | #endif |
| 2500 | } |
| 2501 | } else if (msgLen == 0) { |
| 2502 | /* |
| 2503 | * There was only some data from the sendBuffer, no new Data; |
| 2504 | */ |
| 2505 | assert(bufs[0].iov_len > 0)((void) (0)); |
| 2506 | |
| 2507 | freshDataRemaining = 0; |
| 2508 | Ns_Log(Ns_LogConnchanDebug, |
| 2509 | "... have sent from old buffer %" PRIdz"zd" " no new data " |
| 2510 | "(BYTES from %" PRIdz"zd" " to %" PRIdz"zd" ")", |
| 2511 | nSent, |
| 2512 | connChanPtr->wBytes - (size_t)nSent, connChanPtr->wBytes); |
| 2513 | #ifdef WS_RECORD_OUTPUT |
| 2514 | write(FD, connChanPtr->sendBuffer->string, (size_t)nSent); |
| 2515 | #endif |
| 2516 | memmove(connChanPtr->sendBuffer->string, |
| 2517 | bufs[0].iov_base, |
| 2518 | bufs[0].iov_len); |
| 2519 | Tcl_DStringSetLength(connChanPtr->sendBuffer, (int)bufs[0].iov_len); |
| 2520 | } else { |
| 2521 | /* |
| 2522 | * There is only fresh data. |
| 2523 | */ |
| 2524 | freshDataRemaining = msgLen - (int)nSent; |
| 2525 | #ifdef WS_RECORD_OUTPUT |
| 2526 | if (nSent > 0) { |
| 2527 | write(FD, msgString, (size_t)nSent); |
| 2528 | Ns_Log(Ns_LogConnchanDebug, "... have sent only fresh data %" PRIdz"zd" |
| 2529 | " (BYTES from %" PRIdz"zd" " to %" PRIdz"zd" ")", |
| 2530 | nSent, |
| 2531 | connChanPtr->wBytes - (size_t)nSent, connChanPtr->wBytes); |
| 2532 | } |
| 2533 | #endif |
| 2534 | } |
| 2535 | |
| 2536 | if (freshDataRemaining > 0) { |
| 2537 | Tcl_DStringAppend(connChanPtr->sendBuffer, |
| 2538 | msgString + (msgLen - freshDataRemaining), |
| 2539 | freshDataRemaining); |
| 2540 | Ns_Log(Ns_LogConnchanDebug, "... keep for later %d bytes of %d " |
| 2541 | "(buffered %d) will be BYTES from %" PRIdz"zd" " to %" PRIdz"zd", |
| 2542 | freshDataRemaining, msgLen, connChanPtr->sendBuffer->length, |
| 2543 | connChanPtr->wBytes, |
| 2544 | connChanPtr->wBytes + (size_t)connChanPtr->sendBuffer->length); |
| 2545 | } |
| 2546 | } else { |
| 2547 | /* |
| 2548 | * not (buffered && remaining > 0) |
| 2549 | */ |
| 2550 | if (buffered) { |
| 2551 | /* |
| 2552 | * Everything was sent |
| 2553 | */ |
| 2554 | int buffedLen = ConnChanBufferSize(connChanPtr, sendBuffer)((connChanPtr)->sendBuffer != ((void*)0) ? (connChanPtr)-> sendBuffer->length : 0); |
| 2555 | Ns_Log(Ns_LogConnchanDebug, "... buffered %d buffedLen %d msgLength %d " |
| 2556 | "everything was sent, remaining %d, (BYTES from %" PRIdz"zd" " to %" PRIdz"zd" ")", |
| 2557 | buffered, buffedLen, msgLen, remaining, |
| 2558 | connChanPtr->wBytes - (size_t)nSent, connChanPtr->wBytes); |
| 2559 | assert(remaining == 0)((void) (0)); |
| 2560 | |
| 2561 | if (buffedLen > 0) { |
| 2562 | #ifdef WS_RECORD_OUTPUT |
| 2563 | write(FD, connChanPtr->sendBuffer->string, (size_t)buffedLen); |
| 2564 | #endif |
| 2565 | Tcl_DStringSetLength(connChanPtr->sendBuffer, 0); |
| 2566 | } |
| 2567 | #ifdef WS_RECORD_OUTPUT |
| 2568 | if (msgLen > 0) { |
| 2569 | write(FD, msgString, (size_t)nSent); |
| 2570 | } |
| 2571 | #endif |
| 2572 | } else { |
| 2573 | /* |
| 2574 | * Non-buffered case, there might be a partial send operation |
| 2575 | */ |
| 2576 | if (remaining != 0) { |
| 2577 | Ns_Log(Notice, "... partial write: to send %d sent %" PRIdz"zd" " remaining %d", |
| 2578 | toSend, nSent, remaining); |
| 2579 | } |
| 2580 | } |
| 2581 | } |
| 2582 | } else { |
| 2583 | result = TCL_ERROR1; |
| 2584 | } |
| 2585 | } |
| 2586 | } |
| 2587 | Ns_Log(Ns_LogConnchanDebug, "%s ns_connchan write returns %d", name, result); |
| 2588 | |
| 2589 | return result; |
| 2590 | } |
| 2591 | |
| 2592 | |
| 2593 | /* |
| 2594 | *---------------------------------------------------------------------- |
| 2595 | * |
| 2596 | * ConnChanWsencodeObjCmd -- |
| 2597 | * |
| 2598 | * Implements "ns_connchan wsencode". Returns a WebSocket frame in |
| 2599 | * form of binary data produced from the input parameters. |
| 2600 | * |
| 2601 | * Results: |
| 2602 | * A standard Tcl result. |
| 2603 | * |
| 2604 | * Side effects: |
| 2605 | * None. |
| 2606 | * |
| 2607 | *---------------------------------------------------------------------- |
| 2608 | */ |
| 2609 | |
| 2610 | static int |
| 2611 | ConnChanWsencodeObjCmd(ClientData UNUSED(clientData)UNUSED_clientData __attribute__((__unused__)), Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 2612 | { |
| 2613 | int result = TCL_OK0, isBinary = 0, opcode = 1, fin = 1, masked = 0; |
| 2614 | static Ns_ObjvValueRange finRange = {0, 1}; |
| 2615 | Tcl_Obj *messageObj; |
| 2616 | static Ns_ObjvTable opcodes[] = { |
| 2617 | {"continue", 0}, |
| 2618 | {"text", 1}, |
| 2619 | {"binary", 2}, |
| 2620 | {"close", 8}, |
| 2621 | {"ping", 9}, |
| 2622 | {"pong", 10}, |
| 2623 | {NULL((void*)0), 0u} |
| 2624 | }; |
| 2625 | Ns_ObjvSpec opts[] = { |
| 2626 | {"-binary", Ns_ObjvBool, &isBinary, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 2627 | {"-fin", Ns_ObjvInt, &fin, &finRange}, |
| 2628 | {"-mask", Ns_ObjvBool, &masked, INT2PTR(NS_TRUE)((void *)(intptr_t)(1))}, |
| 2629 | {"-opcode", Ns_ObjvIndex, &opcode, &opcodes}, |
| 2630 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 2631 | }; |
| 2632 | Ns_ObjvSpec args[] = { |
| 2633 | {"message", Ns_ObjvObj, &messageObj, NULL((void*)0)}, |
| 2634 | {NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)} |
| 2635 | }; |
| 2636 | |
| 2637 | if (Ns_ParseObjv(opts, args, interp, 2, objc, objv) != NS_OK) { |
| 2638 | result = TCL_ERROR1; |
| 2639 | |
| 2640 | } else { |
| 2641 | const unsigned char *messageString; |
| 2642 | unsigned char *data; |
| 2643 | int messageLength; |
| 2644 | Tcl_DString messageDs, frameDs; |
| 2645 | size_t offset; |
| 2646 | |
| 2647 | Tcl_DStringInit(&messageDs); |
| 2648 | Tcl_DStringInit(&frameDs); |
| 2649 | |
| 2650 | /* |
| 2651 | * When the binary opcode is used, get as well the data in |
| 2652 | * form of binary data. |
| 2653 | */ |
| 2654 | if (opcode == 2) { |
| 2655 | isBinary = 1; |
| 2656 | } |
| 2657 | messageString = Ns_GetBinaryString(messageObj, isBinary == 1, &messageLength, &messageDs); |
| 2658 | data = (unsigned char *)frameDs.string; |
| 2659 | |
| 2660 | Tcl_DStringSetLength(&frameDs, 2); |
| 2661 | /* |
| 2662 | * Initialize first two bytes, and then XOR flags into it. |
| 2663 | */ |
| 2664 | data[0] = '\0'; |
| 2665 | data[1] = '\0'; |
| 2666 | |
| 2667 | data[0] = (unsigned char)(data[0] | ((unsigned char)opcode & 0x0Fu)); |
| 2668 | if (fin) { |
| 2669 | data[0] |= 0x80u; |
| 2670 | } |
| 2671 | |
| 2672 | if ( messageLength <= 125 ) { |
| 2673 | data[1] = (unsigned char)(data[1] | ((unsigned char)messageLength & 0x7Fu)); |
| 2674 | offset = 2; |
| 2675 | } else if ( messageLength <= 65535 ) { |
| 2676 | uint16_t len16; |
| 2677 | /* |
| 2678 | * Together with the first clause, this means: |
| 2679 | * messageLength > 125 && messageLength <= 65535 |
| 2680 | */ |
| 2681 | |
| 2682 | Tcl_DStringSetLength(&frameDs, 4); |
| 2683 | data[1] |= (( unsigned char )126 & 0x7Fu); |
| 2684 | len16 = htobe16((short unsigned int)messageLength)__bswap_16 ((short unsigned int)messageLength); |
| 2685 | memcpy(&data[2], &len16, 2); |
| 2686 | offset = 4; |
| 2687 | } else { |
| 2688 | uint64_t len64; |
| 2689 | /* |
| 2690 | * Together with the first two clauses, this means: |
| 2691 | * messageLength > 65535 |
| 2692 | */ |
| 2693 | |
| 2694 | Tcl_DStringSetLength(&frameDs, 10); |
| 2695 | data[1] |= (( unsigned char )127 & 0x7Fu); |
| 2696 | len64 = htobe64((uint64_t)messageLength)__bswap_64 ((uint64_t)messageLength); |
| 2697 | memcpy(&data[2], &len64, 8); |
| 2698 | offset = 10; |
| 2699 | } |
| 2700 | |
| 2701 | if (masked) { |
| 2702 | unsigned char mask[4]; |
| 2703 | size_t i, j; |
| 2704 | |
| 2705 | data[1] |= 0x80u; |
| 2706 | #ifdef HAVE_OPENSSL_EVP_H1 |
| 2707 | (void) RAND_bytes(&mask[0], 4); |
| 2708 | #else |
| 2709 | { |
| 2710 | double d = Ns_DRand(); |
| 2711 | /* |
| 2712 | * In case double is 64-bits (which is the case on |
| 2713 | * most platforms) the first four bytes contains much |
| 2714 | * less randoness than the second 4 bytes. |
| 2715 | */ |
| 2716 | if (sizeof(d) == 8) { |
| 2717 | const char *p = (const char *)&d; |
| 2718 | memcpy(&mask[0], p+4, 4); |
| 2719 | } else { |
| 2720 | memcpy(&mask[0], &d, 4); |
| 2721 | } |
| 2722 | } |
| 2723 | #endif |
| 2724 | Tcl_DStringSetLength(&frameDs, (int)offset + 4 + messageLength); |
| 2725 | data = (unsigned char *)frameDs.string; |
| 2726 | memcpy(&data[offset], &mask[0], 4); |
| 2727 | offset += 4; |
| 2728 | for( i = offset, j = 0u; j < (size_t)messageLength; i++, j++ ) { |
| 2729 | data[ i ] = messageString[ j ] ^ mask[ j % 4]; |
| 2730 | } |
| 2731 | } else { |
| 2732 | Tcl_DStringSetLength(&frameDs, (int)offset + messageLength); |
| 2733 | data = (unsigned char *)frameDs.string; |
| 2734 | memcpy(&data[offset], &messageString[0], (size_t)messageLength); |
| 2735 | } |
| 2736 | |
| 2737 | Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(data, frameDs.length)); |
| 2738 | |
| 2739 | Tcl_DStringFree(&messageDs); |
| 2740 | Tcl_DStringFree(&frameDs); |
| 2741 | } |
| 2742 | return result; |
| 2743 | } |
| 2744 | |
| 2745 | |
| 2746 | |
| 2747 | |
| 2748 | /* |
| 2749 | *---------------------------------------------------------------------- |
| 2750 | * |
| 2751 | * NsTclConnChanObjCmd -- |
| 2752 | * |
| 2753 | * Implements "ns_connchan". |
| 2754 | * |
| 2755 | * Results: |
| 2756 | * A standard Tcl result. |
| 2757 | * |
| 2758 | * Side effects: |
| 2759 | * Depends on subcommand. |
| 2760 | * |
| 2761 | *---------------------------------------------------------------------- |
| 2762 | */ |
| 2763 | |
| 2764 | int |
| 2765 | NsTclConnChanObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const* objv) |
| 2766 | { |
| 2767 | const Ns_SubCmdSpec subcmds[] = { |
| 2768 | {"callback", ConnChanCallbackObjCmd}, |
| 2769 | {"connect", ConnChanConnectObjCmd}, |
| 2770 | {"close", ConnChanCloseObjCmd}, |
| 2771 | {"detach", ConnChanDetachObjCmd}, |
| 2772 | {"exists", ConnChanExistsObjCmd}, |
| 2773 | {"list", ConnChanListObjCmd}, |
| 2774 | {"listen", ConnChanListenObjCmd}, |
| 2775 | {"open", ConnChanOpenObjCmd}, |
| 2776 | {"read", ConnChanReadObjCmd}, |
| 2777 | {"status", ConnChanStatusObjCmd}, |
| 2778 | {"write", ConnChanWriteObjCmd}, |
| 2779 | {"wsencode", ConnChanWsencodeObjCmd}, |
| 2780 | {NULL((void*)0), NULL((void*)0)} |
| 2781 | }; |
| 2782 | return Ns_SubcmdObjv(subcmds, clientData, interp, objc, objv); |
| 2783 | } |
| 2784 | |
| 2785 | /* |
| 2786 | * Local Variables: |
| 2787 | * mode: c |
| 2788 | * c-basic-offset: 4 |
| 2789 | * fill-column: 70 |
| 2790 | * indent-tabs-mode: nil |
| 2791 | * End: |
| 2792 | */ |