src/core/http-conn.c

   1 /**
   2  * @file http-conn.c
   3  *
   4  * pidgin-sipe
   5  *
   6  * Copyright (C) 2010 SIPE Project <http://sipe.sourceforge.net/>
   7  * Copyright (C) 2009 pier11 <pier11@operamail.com>
   8  *
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23  */
  24
  25 /**
  26  * Operates with HTTPS connection.
  27  * Support Negotiate (Windows only) and NTLM authentications, redirect, cookie, GET/POST.
  28 */
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include "config.h"
  32 #endif
  33
  34 #include <stdlib.h>
  35 #include <string.h>
  36
  37 #include <glib.h>
  38
  39 #include "http-conn.h"
  40 #include "sipmsg.h"
  41 #include "sip-sec.h"
  42 #include "sipe-backend.h"
  43 #include "sipe-core.h"
  44 #include "sipe-core-private.h"
  45 #include "sipe-utils.h"
  46
  47 /**
  48  * HTTP header
  49  * @param method (%s)           Ex.: GET or POST
  50  * @param url (%s)              Ex.: /EWS/Exchange.asmx
  51  * @param host (%s)             Ex.: cosmo-ocs-r2.cosmo.local
  52  */
  53 #define HTTP_CONN_HEADER \
  54 "%s %s HTTP/1.1\r\n"\
  55 "Host: %s\r\n"\
  56 "User-Agent: Sipe/" PACKAGE_VERSION "\r\n"
  57
  58
  59 struct http_conn_struct {
  60         struct sipe_core_public *sipe_public;
  61
  62         /* GET, POST */
  63         char *method;
  64         guint conn_type;
  65         gboolean allow_redirect;
  66         char *host;
  67         guint port;
  68         char *url;
  69         char *body;
  70         char *content_type;
  71         const gchar *additional_headers;
  72         HttpConnAuth *auth;
  73         HttpConnCallback callback;
  74         void *data;
  75
  76         struct sipe_transport_connection *conn;
  77
  78         SipSecContext sec_ctx;
  79         int retries;
  80
  81         HttpSession *http_session;
  82
  83         /* if server sends "Connection: close" header */
  84         gboolean closed;
  85         HttpConn* do_close;
  86 };
  87 #define HTTP_CONN ((HttpConn *) conn->user_data)
  88
  89 struct http_session_struct {
  90         char *cookie;
  91 };
  92
  93 static HttpConn*
  94 http_conn_clone(HttpConn* http_conn)
  95 {
  96         HttpConn *res = g_new0(HttpConn, 1);
  97
  98         res->http_session = http_conn->http_session;
  99         res->method = g_strdup(http_conn->method);
 100         res->conn_type = http_conn->conn_type;
 101         res->allow_redirect = http_conn->allow_redirect;
 102         res->host = g_strdup(http_conn->host);
 103         res->port = http_conn->port;
 104         res->url = g_strdup(http_conn->url);
 105         res->body = g_strdup(http_conn->body);
 106         res->content_type = g_strdup(http_conn->content_type);
 107         res->auth = http_conn->auth;
 108         res->callback = http_conn->callback;
 109         res->data = http_conn->data;
 110
 111         res->conn = http_conn->conn;
 112         res->sec_ctx = http_conn->sec_ctx;
 113         res->retries = http_conn->retries;
 114
 115         res->do_close = NULL;
 116
 117         return res;
 118 }
 119
 120 void
 121 http_conn_free(HttpConn* http_conn)
 122 {
 123         if (!http_conn) return;
 124
 125         /* don't free "http_conn->http_session" - client should do */
 126         g_free(http_conn->method);
 127         g_free(http_conn->host);
 128         g_free(http_conn->url);
 129         g_free(http_conn->body);
 130         g_free(http_conn->content_type);
 131
 132         if (http_conn->sec_ctx) {
 133                 sip_sec_destroy_context(http_conn->sec_ctx);
 134         }
 135
 136         g_free(http_conn);
 137 }
 138
 139 gboolean
 140 http_conn_is_closed(HttpConn *http_conn)
 141 {
 142         return http_conn->closed;
 143 }
 144
 145 HttpSession *
 146 http_conn_session_create()
 147 {
 148         HttpSession *res = g_new0(HttpSession, 1);
 149         return res;
 150 }
 151
 152 void
 153 http_conn_session_free(HttpSession *http_session)
 154 {
 155         if (!http_session) return;
 156
 157         g_free(http_session->cookie);
 158         g_free(http_session);
 159 }
 160
 161 void
 162 http_conn_auth_free(struct http_conn_auth* auth)
 163 {
 164         g_free(auth->domain);
 165         g_free(auth->user);
 166         g_free(auth->password);
 167         g_free(auth);
 168 }
 169
 170 void
 171 http_conn_set_close(HttpConn* http_conn)
 172 {
 173         http_conn->do_close = http_conn;
 174 }
 175
 176 static void
 177 http_conn_close(HttpConn *http_conn, const char *message)
 178 {
 179         SIPE_DEBUG_INFO("http_conn_close: closing http connection: %s", message ? message : "");
 180
 181         g_return_if_fail(http_conn);
 182
 183         sipe_backend_transport_disconnect(http_conn->conn);
 184         http_conn_free(http_conn);
 185 }
 186
 187 /**
 188  * Extracts host, port and relative url
 189  * Ex. url: https://machine.domain.Contoso.com/EWS/Exchange.asmx
 190  *
 191  * Allocates memory, must be g_free'd.
 192  */
 193 static void
 194 http_conn_parse_url(const char *url,
 195                     char **host,
 196                     guint *port,
 197                     char **rel_url)
 198 {
 199         char **parts = g_strsplit(url, "://", 2);
 200         char *no_proto;
 201         guint port_tmp;
 202         char *tmp;
 203         char *host_port;
 204
 205         /* Make sure we always return valid information */
 206         if (host)    *host = NULL;
 207         if (rel_url) *rel_url = NULL;
 208
 209         if(!parts) {
 210                 return;
 211         } else if(!parts[0]) {
 212                 g_strfreev(parts);
 213                 return;
 214         }
 215
 216         no_proto = parts[1] ? g_strdup(parts[1]) : g_strdup(parts[0]);
 217         port_tmp = sipe_strequal(parts[0], "https") ? 443 : 80;
 218         g_strfreev(parts);
 219
 220         if(!no_proto) {
 221                 return;
 222         }
 223
 224         tmp = strstr(no_proto, "/");
 225         if (tmp && rel_url) *rel_url = g_strdup(tmp);
 226         host_port = tmp ? g_strndup(no_proto, tmp - no_proto) : g_strdup(no_proto);
 227         g_free(no_proto);
 228
 229         if(!host_port) {
 230                 return;
 231         }
 232
 233         parts = g_strsplit(host_port, ":", 2);
 234
 235         if(parts) {
 236                 if (host) *host = g_strdup(parts[0]);
 237                 if(parts[0]) {
 238                         port_tmp = parts[1] ? (guint) atoi(parts[1]) : port_tmp;
 239                 }
 240                 if (port) *port = port_tmp;
 241                 g_strfreev(parts);
 242         }
 243
 244         g_free(host_port);
 245 }
 246
 247 static void http_conn_error(struct sipe_transport_connection *conn,
 248                             const gchar *msg)
 249 {
 250         HttpConn *http_conn = HTTP_CONN;
 251         if (http_conn->callback) {
 252                 (*http_conn->callback)(HTTP_CONN_ERROR, NULL, NULL, http_conn, http_conn->data);
 253         }
 254         http_conn_close(http_conn, msg);
 255 }
 256
 257 static void http_conn_send0(HttpConn *http_conn,
 258                             const char *authorization);
 259 static void http_conn_connected(struct sipe_transport_connection *conn)
 260 {
 261         http_conn_send0(HTTP_CONN, NULL);
 262 }
 263
 264 static void http_conn_input(struct sipe_transport_connection *conn);
 265 static struct sipe_transport_connection *http_conn_setup(HttpConn *http_conn,
 266                                                          struct sipe_core_public *sipe_public,
 267                                                          guint type,
 268                                                          const gchar *host,
 269                                                          guint port) {
 270         sipe_connect_setup setup = {
 271                 type,
 272                 host,
 273                 port,
 274                 http_conn,
 275                 http_conn_connected,
 276                 http_conn_input,
 277                 http_conn_error
 278         };
 279
 280         if (!host) {
 281                 http_conn_close(http_conn, "Missing host");
 282                 return NULL;
 283         }
 284
 285         return(sipe_backend_transport_connect(sipe_public, &setup));
 286 }
 287
 288 HttpConn *
 289 http_conn_create(struct sipe_core_public *sipe_public,
 290                  HttpSession *http_session,
 291                  const char *method,
 292                  guint conn_type,
 293                  gboolean allow_redirect,
 294                  const char *full_url,
 295                  const char *body,
 296                  const char *content_type,
 297                  const gchar *additional_headers,
 298                  HttpConnAuth *auth,
 299                  HttpConnCallback callback,
 300                  void *data)
 301 {
 302         HttpConn *http_conn;
 303         struct sipe_transport_connection *conn;
 304         gchar *host, *url;
 305         guint port;
 306
 307         if (!full_url || (strlen(full_url) == 0)) {
 308                 SIPE_DEBUG_INFO_NOFORMAT("no URL supplied!");
 309                 return NULL;
 310         }
 311
 312         http_conn_parse_url(full_url, &host, &port, &url);
 313         http_conn = g_new0(HttpConn, 1);
 314         conn = http_conn_setup(http_conn, sipe_public, conn_type, host, port);
 315         if (!conn) {
 316                 // http_conn_setup deallocates http_conn on error, don't free here
 317                 g_free(host);
 318                 g_free(url);
 319                 return NULL;
 320         }
 321
 322         http_conn->sipe_public = sipe_public;
 323         conn->user_data = http_conn;
 324
 325         http_conn->http_session = http_session;
 326         http_conn->method = g_strdup(method);
 327         http_conn->conn_type = conn_type;
 328         http_conn->allow_redirect = allow_redirect;
 329         http_conn->host = host;
 330         http_conn->port = port;
 331         http_conn->url = url;
 332         http_conn->body = g_strdup(body);
 333         http_conn->content_type = g_strdup(content_type);
 334         http_conn->additional_headers = additional_headers;
 335         http_conn->auth = auth;
 336         http_conn->callback = callback;
 337         http_conn->data = data;
 338         http_conn->conn = conn;
 339
 340         return http_conn;
 341 }
 342
 343 /* Data part */
 344 static void
 345 http_conn_send0(HttpConn *http_conn,
 346                 const char *authorization)
 347 {
 348         GString *outstr;
 349
 350         if (!http_conn->host || !http_conn->url) return;
 351
 352         outstr = g_string_new("");
 353         g_string_append_printf(outstr, HTTP_CONN_HEADER,
 354                                http_conn->method ? http_conn->method : "GET",
 355                                http_conn->url,
 356                                http_conn->host);
 357         if (sipe_strequal(http_conn->method, "POST")) {
 358                 g_string_append_printf(outstr, "Content-Length: %d\r\n",
 359                         http_conn->body ? (int)strlen(http_conn->body) : 0);
 360
 361                 g_string_append_printf(outstr, "Content-Type: %s\r\n",
 362                         http_conn->content_type ? http_conn->content_type : "text/plain");
 363         }
 364         if (http_conn->http_session && http_conn->http_session->cookie) {
 365                 g_string_append_printf(outstr, "Cookie: %s\r\n", http_conn->http_session->cookie);
 366         }
 367         if (authorization) {
 368                 g_string_append_printf(outstr, "Authorization: %s\r\n", authorization);
 369         }
 370         if (http_conn->additional_headers) {
 371                 g_string_append(outstr, http_conn->additional_headers);
 372         }
 373
 374         g_string_append_printf(outstr, "\r\n%s", http_conn->body ? http_conn->body : "");
 375
 376         sipe_utils_message_debug("HTTP", outstr->str, NULL, TRUE);
 377         sipe_backend_transport_message(http_conn->conn, outstr->str);
 378         g_string_free(outstr, TRUE);
 379 }
 380
 381 void
 382 http_conn_send( HttpConn *http_conn,
 383                 const char *method,
 384                 const char *full_url,
 385                 const char *body,
 386                 const char *content_type,
 387                 HttpConnCallback callback,
 388                 void *data)
 389 {
 390         if (!http_conn) {
 391                 SIPE_DEBUG_INFO_NOFORMAT("http_conn_send: NULL http_conn, exiting.");
 392                 return;
 393         }
 394
 395         g_free(http_conn->method);
 396         g_free(http_conn->url);
 397         g_free(http_conn->body);
 398         g_free(http_conn->content_type);
 399         http_conn->method = g_strdup(method);
 400         http_conn_parse_url(full_url, NULL, NULL, &http_conn->url);
 401         http_conn->body = g_strdup(body);
 402         http_conn->content_type = g_strdup(content_type);
 403         http_conn->callback = callback;
 404         http_conn->data = data;
 405
 406         http_conn_send0(http_conn, NULL);
 407 }
 408
 409 static void
 410 http_conn_process_input_message(HttpConn *http_conn,
 411                                 struct sipmsg *msg)
 412 {
 413         /* Redirect */
 414         if ((msg->response == 300 ||
 415              msg->response == 301 ||
 416              msg->response == 302 ||
 417              msg->response == 307) &&
 418              http_conn->allow_redirect)
 419         {
 420                 const char *location = sipmsg_find_header(msg, "Location");
 421                 gchar *host, *url;
 422                 guint port;
 423
 424                 SIPE_DEBUG_INFO("http_conn_process_input_message: Redirect to: %s", location ? location : "");
 425                 http_conn_parse_url(location, &host, &port, &url);
 426
 427                 if (host) {
 428                         http_conn->do_close = http_conn_clone(http_conn);
 429                         http_conn->sec_ctx = NULL;
 430
 431                         g_free(http_conn->host);
 432                         g_free(http_conn->url);
 433
 434                         http_conn->host = host;
 435                         http_conn->port = port;
 436                         http_conn->url  = url;
 437
 438                         http_conn->conn = http_conn_setup(http_conn,
 439                                                           http_conn->sipe_public,
 440                                                           http_conn->conn_type,
 441                                                           host,
 442                                                           port);
 443                 } else {
 444                         SIPE_DEBUG_ERROR_NOFORMAT("http_conn_process_input_message: no redirect host");
 445                         g_free(url);
 446                         return;
 447                 }
 448         }
 449         /* Authentication required */
 450         else if (msg->response == 401) {
 451                 const gchar *auth_hdr = NULL;
 452                 guint auth_type;
 453                 const char *auth_name;
 454                 char *authorization;
 455                 char *output_toked_base64;
 456                 int use_sso = !http_conn->auth || (http_conn->auth && !http_conn->auth->user);
 457                 long ret = -1;
 458
 459                 http_conn->retries++;
 460                 if (http_conn->retries > 2) {
 461                         if (http_conn->callback) {
 462                                 (*http_conn->callback)(HTTP_CONN_ERROR_FATAL, NULL, NULL, http_conn, http_conn->data);
 463                         }
 464                         SIPE_DEBUG_INFO_NOFORMAT("http_conn_process_input_message: Authentication failed");
 465                         http_conn_set_close(http_conn);
 466                         return;
 467                 }
 468
 469 #ifdef HAVE_SSPI
 470                 if (http_conn->auth && http_conn->auth->use_negotiate)
 471                         auth_hdr = sipmsg_find_auth_header(msg, "Negotiate");
 472                 if (auth_hdr) {
 473                         auth_type = AUTH_TYPE_NEGOTIATE;
 474                         auth_name = "Negotiate";
 475                 } else {
 476 #endif
 477                         auth_hdr = sipmsg_find_auth_header(msg, "NTLM");
 478                         auth_type = AUTH_TYPE_NTLM;
 479                         auth_name = "NTLM";
 480 #ifdef HAVE_SSPI
 481                 }
 482 #endif
 483                 if (!auth_hdr) {
 484                         if (http_conn->callback) {
 485                                 (*http_conn->callback)(HTTP_CONN_ERROR_FATAL, NULL, NULL, http_conn, http_conn->data);
 486                         }
 487 #ifdef HAVE_SSPI
 488 #define AUTHSTRING                              "NTLM and Negotiate authentications are"
 489 #else /* !HAVE_SSPI */
 490 #define AUTHSTRING                              "NTLM authentication is"
 491 #endif /* HAVE_SSPI */
 492                         SIPE_DEBUG_INFO("http_conn_process_input_message: Only %s supported in the moment, exiting",
 493                                         AUTHSTRING
 494                         );
 495                         http_conn_set_close(http_conn);
 496                         return;
 497                 }
 498
 499                 if (!http_conn->sec_ctx) {
 500                         http_conn->sec_ctx =
 501                                 sip_sec_create_context(auth_type,
 502                                                        use_sso,
 503                                                        1,
 504                                                        http_conn->auth && http_conn->auth->domain ? http_conn->auth->domain : "",
 505                                                        http_conn->auth ? http_conn->auth->user : NULL,
 506                                                        http_conn->auth ? http_conn->auth->password : NULL);
 507                 }
 508
 509                 if (http_conn->sec_ctx) {
 510                         char **parts = g_strsplit(auth_hdr, " ", 0);
 511                         char *spn = g_strdup_printf("HTTP/%s", http_conn->host);
 512                         ret = sip_sec_init_context_step(http_conn->sec_ctx,
 513                                                         spn,
 514                                                         parts[1],
 515                                                         &output_toked_base64,
 516                                                         NULL);
 517                         g_free(spn);
 518                         g_strfreev(parts);
 519                 }
 520
 521                 if (ret < 0) {
 522                         if (http_conn->callback) {
 523                                 (*http_conn->callback)(HTTP_CONN_ERROR_FATAL, NULL, NULL, http_conn, http_conn->data);
 524                         }
 525                         SIPE_DEBUG_INFO_NOFORMAT("http_conn_process_input_message: Failed to initialize security context");
 526                         http_conn_set_close(http_conn);
 527                         return;
 528                 }
 529
 530                 authorization = g_strdup_printf("%s %s", auth_name, output_toked_base64 ? output_toked_base64 : "");
 531                 g_free(output_toked_base64);
 532
 533                 http_conn_send0(http_conn, authorization);
 534                 g_free(authorization);
 535         }
 536         /* Other response */
 537         else {
 538                 const char *set_cookie_hdr;
 539                 const char *content_type = sipmsg_find_header(msg, "Content-Type");
 540                 http_conn->retries = 0;
 541
 542                 /* Set cookies.
 543                  * Set-Cookie: RMID=732423sdfs73242; expires=Fri, 31-Dec-2010 23:59:59 GMT; path=/; domain=.example.net
 544                  */
 545                 if (http_conn->http_session && (set_cookie_hdr = sipmsg_find_header(msg, "Set-Cookie"))) {
 546                         char **parts;
 547                         char *tmp;
 548                         int i;
 549
 550                         g_free(http_conn->http_session->cookie);
 551                         http_conn->http_session->cookie = NULL;
 552
 553                         parts = g_strsplit(set_cookie_hdr, ";", 0);
 554                         for (i = 0; parts[i]; i++) {
 555                                 if (!strstr(parts[i], "path=") &&
 556                                     !strstr(parts[i], "domain=") &&
 557                                     !strstr(parts[i], "expires=") &&
 558                                     !strstr(parts[i], "secure"))
 559                                 {
 560                                         tmp = http_conn->http_session->cookie;
 561                                         http_conn->http_session->cookie = !tmp ?
 562                                                 g_strdup(parts[i]) :
 563                                                 g_strconcat(http_conn->http_session->cookie, ";", parts[i], NULL);
 564                                         g_free(tmp);
 565                                 }
 566                         }
 567                         g_strfreev(parts);
 568                         SIPE_DEBUG_INFO("http_conn_process_input_message: Set cookie: %s",
 569                                 http_conn->http_session->cookie ? http_conn->http_session->cookie : "");
 570                 }
 571
 572                 if (http_conn->callback) {
 573                         (*http_conn->callback)(msg->response, msg->body, content_type, http_conn, http_conn->data);
 574                 }
 575         }
 576 }
 577
 578 static void http_conn_input(struct sipe_transport_connection *conn)
 579 {
 580         HttpConn *http_conn = HTTP_CONN;
 581         char *cur = conn->buffer;
 582
 583         /* according to the RFC remove CRLF at the beginning */
 584         while (*cur == '\r' || *cur == '\n') {
 585                 cur++;
 586         }
 587         if (cur != conn->buffer)
 588                 sipe_utils_shrink_buffer(conn, cur);
 589
 590         while ((cur = strstr(conn->buffer, "\r\n\r\n")) != NULL) {
 591                 struct sipmsg *msg;
 592                 guint remainder;
 593
 594                 cur += 2;
 595                 cur[0] = '\0';
 596                 msg = sipmsg_parse_header(conn->buffer);
 597
 598                 /* HTTP/1.1 Transfer-Encoding: chunked */
 599                 if (msg && (msg->bodylen == SIPMSG_BODYLEN_CHUNKED)) {
 600                         gchar *start        = cur + 2;
 601                         GSList *chunks      = NULL;
 602                         gboolean incomplete = TRUE;
 603
 604                         msg->bodylen = 0;
 605                         while (strlen(start) > 0) {
 606                                 gchar *tmp;
 607                                 guint length = strtol(start, &tmp, 16);
 608                                 struct _chunk {
 609                                         guint length;
 610                                         const gchar *start;
 611                                 } *chunk;
 612
 613                                 /* Illegal number */
 614                                 if ((length == 0) && (start == tmp))
 615                                         break;
 616                                 msg->bodylen += length;
 617
 618                                 /* Chunk header not finished yet */
 619                                 tmp = strstr(tmp, "\r\n");
 620                                 if (tmp == NULL)
 621                                         break;
 622
 623                                 /* Chunk not finished yet */
 624                                 tmp += 2;
 625                                 remainder = conn->buffer_used - (tmp - conn->buffer);
 626                                 if (remainder < length + 2)
 627                                         break;
 628
 629                                 /* Next chunk */
 630                                 start = tmp + length + 2;
 631
 632                                 /* Body completed */
 633                                 if (length == 0) {
 634                                         gchar *dummy  = g_malloc(msg->bodylen + 1);
 635                                         gchar *p      = dummy;
 636                                         GSList *entry = chunks;
 637
 638                                         while (entry) {
 639                                                 chunk = entry->data;
 640                                                 memcpy(p, chunk->start, chunk->length);
 641                                                 p += chunk->length;
 642                                                 entry = entry->next;
 643                                         }
 644                                         p[0] = '\0';
 645
 646                                         msg->body = dummy;
 647                                         sipe_utils_message_debug("HTTP",
 648                                                                  conn->buffer,
 649                                                                  msg->body,
 650                                                                  FALSE);
 651
 652                                         cur = start;
 653                                         sipe_utils_shrink_buffer(conn, cur);
 654
 655                                         incomplete = FALSE;
 656                                         break;
 657                                 }
 658
 659                                 /* Append completed chunk */
 660                                 chunk = g_new0(struct _chunk, 1);
 661                                 chunk->length = length;
 662                                 chunk->start  = tmp;
 663                                 chunks = g_slist_append(chunks, chunk);
 664                         }
 665
 666                         if (chunks) {
 667                                 GSList *entry = chunks;
 668                                 while (entry) {
 669                                         g_free(entry->data);
 670                                         entry = entry->next;
 671                                 }
 672                                 g_slist_free(chunks);
 673                         }
 674
 675                         if (incomplete) {
 676                                 /* restore header for next try */
 677                                 sipmsg_free(msg);
 678                                 cur[0] = '\r';
 679                                 return;
 680                         }
 681
 682                 } else {
 683                         cur += 2;
 684                         remainder = conn->buffer_used - (cur - conn->buffer);
 685                         if (msg && remainder >= (guint) msg->bodylen) {
 686                                 char *dummy = g_malloc(msg->bodylen + 1);
 687                                 memcpy(dummy, cur, msg->bodylen);
 688                                 dummy[msg->bodylen] = '\0';
 689                                 msg->body = dummy;
 690                                 cur += msg->bodylen;
 691                                 sipe_utils_message_debug("HTTP",
 692                                                          conn->buffer,
 693                                                          msg->body,
 694                                                          FALSE);
 695                                 sipe_utils_shrink_buffer(conn, cur);
 696                         } else {
 697                                 if (msg){
 698                                         SIPE_DEBUG_INFO("process_input: body too short (%d < %d, strlen %d) - ignoring message", remainder, msg->bodylen, (int)strlen(conn->buffer));
 699                                         sipmsg_free(msg);
 700                                 }
 701
 702                                 /* restore header for next try */
 703                                 cur[-2] = '\r';
 704                                 return;
 705                         }
 706                 }
 707
 708                 /* important to set before callback call */
 709                 if (sipe_strcase_equal(sipmsg_find_header(msg, "Connection"), "close")) {
 710                         http_conn->closed = TRUE;
 711                 }
 712
 713                 http_conn_process_input_message(http_conn, msg);
 714
 715                 sipmsg_free(msg);
 716         }
 717
 718         if (http_conn->closed) {
 719                 http_conn_close(http_conn->do_close, "Server closed connection");
 720         } else if (http_conn->do_close) {
 721                 http_conn_close(http_conn->do_close, "User initiated");
 722         }
 723 }
 724
 725 /*
 726   Local Variables:
 727   mode: c
 728   c-file-style: "bsd"
 729   indent-tabs-mode: t
 730   tab-width: 8
 731   End:
 732 */