gweb/gweb.c

   1 /*
   2  *
   3  *  Web service library with GLib integration
   4  *
   5  *  Copyright (C) 2009-2010  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <errno.h>
  28 #include <unistd.h>
  29 #include <stdlib.h>
  30 #include <stdarg.h>
  31 #include <string.h>
  32 #include <sys/socket.h>
  33 #include <arpa/inet.h>
  34
  35 #include "giognutls.h"
  36 #include "gresolv.h"
  37 #include "gweb.h"
  38
  39 #define DEFAULT_BUFFER_SIZE  2048
  40
  41 #define SESSION_FLAG_USE_TLS    (1 << 0)
  42
  43 struct _GWebResult {
  44         guint16 status;
  45         const guint8 *buffer;
  46         gsize length;
  47 };
  48
  49 struct web_session {
  50         GWeb *web;
  51
  52         char *address;
  53         char *host;
  54         uint16_t port;
  55         unsigned long flags;
  56
  57         char *content_type;
  58
  59         GIOChannel *transport_channel;
  60         guint transport_watch;
  61
  62         guint resolv_action;
  63         char *request;
  64
  65         guint8 *receive_buffer;
  66         gsize receive_space;
  67         GString *current_header;
  68         gboolean header_done;
  69
  70         GWebResult result;
  71
  72         GWebResultFunc result_func;
  73         GWebInputFunc input_func;
  74         gpointer user_data;
  75 };
  76
  77 struct _GWeb {
  78         gint ref_count;
  79
  80         guint next_query_id;
  81
  82         int index;
  83         GList *session_list;
  84
  85         GResolv *resolv;
  86         char *accept_option;
  87         char *user_agent;
  88         gboolean close_connection;
  89
  90         GWebDebugFunc debug_func;
  91         gpointer debug_data;
  92 };
  93
  94 static inline void debug(GWeb *web, const char *format, ...)
  95 {
  96         char str[256];
  97         va_list ap;
  98
  99         if (web->debug_func == NULL)
 100                 return;
 101
 102         va_start(ap, format);
 103
 104         if (vsnprintf(str, sizeof(str), format, ap) > 0)
 105                 web->debug_func(str, web->debug_data);
 106
 107         va_end(ap);
 108 }
 109
 110 static void free_session(struct web_session *session)
 111 {
 112         GWeb *web = session->web;
 113
 114         if (session == NULL)
 115                 return;
 116
 117         g_free(session->request);
 118
 119         if (session->resolv_action > 0)
 120                 g_resolv_cancel_lookup(web->resolv, session->resolv_action);
 121
 122         if (session->transport_watch > 0)
 123                 g_source_remove(session->transport_watch);
 124
 125         if (session->transport_channel != NULL)
 126                 g_io_channel_unref(session->transport_channel);
 127
 128         g_string_free(session->current_header, TRUE);
 129         g_free(session->receive_buffer);
 130
 131         g_free(session->content_type);
 132
 133         g_free(session->host);
 134         g_free(session->address);
 135         g_free(session);
 136 }
 137
 138 static void flush_sessions(GWeb *web)
 139 {
 140         GList *list;
 141
 142         for (list = g_list_first(web->session_list);
 143                                         list; list = g_list_next(list))
 144                 free_session(list->data);
 145
 146         g_list_free(web->session_list);
 147         web->session_list = NULL;
 148 }
 149
 150 GWeb *g_web_new(int index)
 151 {
 152         GWeb *web;
 153
 154         if (index < 0)
 155                 return NULL;
 156
 157         web = g_try_new0(GWeb, 1);
 158         if (web == NULL)
 159                 return NULL;
 160
 161         web->ref_count = 1;
 162
 163         web->next_query_id = 1;
 164
 165         web->index = index;
 166         web->session_list = NULL;
 167
 168         web->resolv = g_resolv_new(index);
 169         if (web->resolv == NULL) {
 170                 g_free(web);
 171                 return NULL;
 172         }
 173
 174         web->accept_option = g_strdup("*/*");
 175         web->user_agent = g_strdup_printf("GWeb/%s", VERSION);
 176         web->close_connection = FALSE;
 177
 178         return web;
 179 }
 180
 181 GWeb *g_web_ref(GWeb *web)
 182 {
 183         if (web == NULL)
 184                 return NULL;
 185
 186         g_atomic_int_inc(&web->ref_count);
 187
 188         return web;
 189 }
 190
 191 void g_web_unref(GWeb *web)
 192 {
 193         if (web == NULL)
 194                 return;
 195
 196         if (g_atomic_int_dec_and_test(&web->ref_count) == FALSE)
 197                 return;
 198
 199         flush_sessions(web);
 200
 201         g_resolv_unref(web->resolv);
 202
 203         g_free(web->accept_option);
 204         g_free(web->user_agent);
 205         g_free(web);
 206 }
 207
 208 void g_web_set_debug(GWeb *web, GWebDebugFunc func, gpointer user_data)
 209 {
 210         if (web == NULL)
 211                 return;
 212
 213         web->debug_func = func;
 214         web->debug_data = user_data;
 215
 216         g_resolv_set_debug(web->resolv, func, user_data);
 217 }
 218
 219 gboolean g_web_add_nameserver(GWeb *web, const char *address)
 220 {
 221         if (web == NULL)
 222                 return FALSE;
 223
 224         g_resolv_add_nameserver(web->resolv, address, 53, 0);
 225
 226         return TRUE;
 227 }
 228
 229 static gboolean set_accept_option(GWeb *web, const char *format, va_list args)
 230 {
 231         g_free(web->accept_option);
 232
 233         if (format == NULL) {
 234                 web->accept_option = NULL;
 235                 debug(web, "clearing accept option");
 236         } else {
 237                 web->accept_option = g_strdup_vprintf(format, args);
 238                 debug(web, "setting accept %s", web->accept_option);
 239         }
 240
 241         return TRUE;
 242 }
 243
 244 gboolean g_web_set_accept(GWeb *web, const char *format, ...)
 245 {
 246         va_list args;
 247         gboolean result;
 248
 249         if (web == NULL)
 250                 return FALSE;
 251
 252         va_start(args, format);
 253         result = set_accept_option(web, format, args);
 254         va_end(args);
 255
 256         return result;
 257 }
 258
 259 static gboolean set_user_agent(GWeb *web, const char *format, va_list args)
 260 {
 261         g_free(web->user_agent);
 262
 263         if (format == NULL) {
 264                 web->user_agent = NULL;
 265                 debug(web, "clearing user agent");
 266         } else {
 267                 web->user_agent = g_strdup_vprintf(format, args);
 268                 debug(web, "setting user agent %s", web->user_agent);
 269         }
 270
 271         return TRUE;
 272 }
 273
 274 gboolean g_web_set_user_agent(GWeb *web, const char *format, ...)
 275 {
 276         va_list args;
 277         gboolean result;
 278
 279         if (web == NULL)
 280                 return FALSE;
 281
 282         va_start(args, format);
 283         result = set_user_agent(web, format, args);
 284         va_end(args);
 285
 286         return result;
 287 }
 288
 289 void g_web_set_close_connection(GWeb *web, gboolean enabled)
 290 {
 291         if (web == NULL)
 292                 return;
 293
 294         web->close_connection = enabled;
 295 }
 296
 297 gboolean g_web_get_close_connection(GWeb *web)
 298 {
 299         if (web == NULL)
 300                 return FALSE;
 301
 302         return web->close_connection;
 303 }
 304
 305 static inline void call_result_func(struct web_session *session, guint16 status)
 306 {
 307         if (session->result_func == NULL)
 308                 return;
 309
 310         if (status != 0)
 311                 session->result.status = status;
 312
 313         session->result_func(&session->result, session->user_data);
 314 }
 315
 316 static gboolean received_data(GIOChannel *channel, GIOCondition cond,
 317                                                         gpointer user_data)
 318 {
 319         struct web_session *session = user_data;
 320         guint8 *ptr = session->receive_buffer;
 321         gsize bytes_read;
 322         GIOStatus status;
 323
 324         if (cond & (G_IO_NVAL | G_IO_ERR | G_IO_HUP)) {
 325                 session->transport_watch = 0;
 326                 session->result.buffer = NULL;
 327                 session->result.length = 0;
 328                 call_result_func(session, 400);
 329                 return FALSE;
 330         }
 331
 332         status = g_io_channel_read_chars(channel,
 333                                 (gchar *) session->receive_buffer,
 334                                 session->receive_space - 1, &bytes_read, NULL);
 335
 336         debug(session->web, "bytes read %zu", bytes_read);
 337
 338         if (status != G_IO_STATUS_NORMAL) {
 339                 session->transport_watch = 0;
 340                 session->result.buffer = NULL;
 341                 session->result.length = 0;
 342                 call_result_func(session, 0);
 343                 return FALSE;
 344         }
 345
 346         session->receive_buffer[bytes_read] = '\0';
 347
 348         if (session->header_done == TRUE) {
 349                 session->result.buffer = session->receive_buffer;
 350                 session->result.length = bytes_read;
 351                 call_result_func(session, 0);
 352                 return TRUE;
 353         }
 354
 355         while (bytes_read > 0) {
 356                 guint8 *pos;
 357                 gsize count;
 358                 char *str;
 359
 360                 pos = memchr(ptr, '\n', bytes_read);
 361                 if (pos == NULL) {
 362                         g_string_append_len(session->current_header,
 363                                                 (gchar *) ptr, bytes_read);
 364                         return TRUE;
 365                 }
 366
 367                 *pos = '\0';
 368                 count = strlen((char *) ptr);
 369                 if (count > 0 && ptr[count - 1] == '\r') {
 370                         ptr[--count] = '\0';
 371                         bytes_read--;
 372                 }
 373
 374                 g_string_append_len(session->current_header,
 375                                                 (gchar *) ptr, count);
 376
 377                 bytes_read -= count + 1;
 378                 ptr = pos + 1;
 379
 380                 if (session->current_header->len == 0) {
 381                         session->header_done = TRUE;
 382                         session->result.buffer = pos + 1;
 383                         session->result.length = bytes_read;
 384                         call_result_func(session, 0);
 385                         break;
 386                 }
 387
 388                 str = session->current_header->str;
 389
 390                 if (session->result.status == 0) {
 391                         unsigned int code;
 392
 393                         if (sscanf(str, "HTTP/%*s %u %*s", &code) == 1)
 394                                 session->result.status = code;
 395                 }
 396
 397                 debug(session->web, "[header] %s", str);
 398
 399                 g_string_truncate(session->current_header, 0);
 400         }
 401
 402         return TRUE;
 403 }
 404
 405 static int connect_session_transport(struct web_session *session)
 406 {
 407         struct sockaddr_in sin;
 408         int sk;
 409
 410         sk = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
 411         if (sk < 0)
 412                 return -EIO;
 413
 414         memset(&sin, 0, sizeof(sin));
 415         sin.sin_family = AF_INET;
 416         sin.sin_port = htons(session->port);
 417         sin.sin_addr.s_addr = inet_addr(session->address);
 418
 419         if (connect(sk, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
 420                 close(sk);
 421                 return -EIO;
 422         }
 423
 424         if (session->flags & SESSION_FLAG_USE_TLS)
 425                 session->transport_channel = g_io_channel_gnutls_new(sk);
 426         else
 427                 session->transport_channel = g_io_channel_unix_new(sk);
 428
 429         if (session->transport_channel == NULL) {
 430                 close(sk);
 431                 return -ENOMEM;
 432         }
 433
 434         g_io_channel_set_encoding(session->transport_channel, NULL, NULL);
 435         g_io_channel_set_buffered(session->transport_channel, FALSE);
 436
 437         g_io_channel_set_close_on_unref(session->transport_channel, TRUE);
 438
 439         session->transport_watch = g_io_add_watch(session->transport_channel,
 440                                 G_IO_IN | G_IO_HUP | G_IO_NVAL | G_IO_ERR,
 441                                                 received_data, session);
 442
 443         return 0;
 444 }
 445
 446 static int create_transport(struct web_session *session)
 447 {
 448         int err;
 449
 450         err = connect_session_transport(session);
 451         if (err < 0)
 452                 return err;
 453
 454         debug(session->web, "creating session %s:%u",
 455                                         session->address, session->port);
 456
 457         return 0;
 458 }
 459
 460 static void start_request(struct web_session *session)
 461 {
 462         GString *buf;
 463         gchar *str;
 464         const guint8 *body;
 465         gsize length;
 466         gsize count, bytes_written;
 467         GIOStatus status;
 468
 469         debug(session->web, "request %s from %s",
 470                                         session->request, session->host);
 471
 472         buf = g_string_new(NULL);
 473
 474         if (session->content_type == NULL)
 475                 g_string_append_printf(buf, "GET %s HTTP/1.1\r\n",
 476                                                         session->request);
 477         else
 478                 g_string_append_printf(buf, "POST %s HTTP/1.1\r\n",
 479                                                         session->request);
 480         g_string_append_printf(buf, "Host: %s\r\n", session->host);
 481         if (session->web->user_agent != NULL)
 482                 g_string_append_printf(buf, "User-Agent: %s\r\n",
 483                                                 session->web->user_agent);
 484         if (session->web->accept_option != NULL)
 485                 g_string_append_printf(buf, "Accept: %s\r\n",
 486                                                 session->web->accept_option);
 487         if (session->content_type != NULL) {
 488                 g_string_append_printf(buf, "Content-Type: %s\r\n",
 489                                                 session->content_type);
 490                 if (session->input_func != NULL)
 491                         session->input_func(&body, &length, session->user_data);
 492                 else
 493                         length = 0;
 494
 495                 g_string_append_printf(buf, "Content-Length: %zu\r\n", length);
 496         }
 497         if (session->web->close_connection == TRUE)
 498                 g_string_append(buf, "Connection: close\r\n");
 499         g_string_append(buf, "\r\n");
 500
 501         count = buf->len;
 502
 503         if (session->content_type != NULL && length > 0) {
 504                 g_string_append_len(buf, (char *) body, length);
 505                 count += length;
 506         }
 507
 508         str = g_string_free(buf, FALSE);
 509
 510         debug(session->web, "bytes to write %zu", count);
 511
 512         status = g_io_channel_write_chars(session->transport_channel,
 513                                         str, count, &bytes_written, NULL);
 514
 515         debug(session->web, "status %u bytes written %zu",
 516                                                 status, bytes_written);
 517
 518         //printf("%s", str);
 519
 520         g_free(str);
 521 }
 522
 523 static int parse_url(struct web_session *session, const char *url)
 524 {
 525         char *scheme, *host, *port, *path;
 526
 527         scheme = g_strdup(url);
 528         if (scheme == NULL)
 529                 return -EINVAL;
 530
 531         host = strstr(scheme, "://");
 532         if (host != NULL) {
 533                 *host = '\0';
 534                 host += 3;
 535
 536                 if (strcasecmp(scheme, "https") == 0) {
 537                         session->port = 443;
 538                         session->flags |= SESSION_FLAG_USE_TLS;
 539                 } else if (strcasecmp(scheme, "http") == 0) {
 540                         session->port = 80;
 541                 } else {
 542                         g_free(scheme);
 543                         return -EINVAL;
 544                 }
 545         } else {
 546                 host = scheme;
 547                 session->port = 80;
 548         }
 549
 550         path = strchr(host, '/');
 551         if (path != NULL)
 552                 *(path++) = '\0';
 553
 554         session->request = g_strdup_printf("/%s", path ? path : "");
 555
 556         port = strrchr(host, ':');
 557         if (port != NULL) {
 558                 char *end;
 559                 int tmp = strtol(port + 1, &end, 10);
 560
 561                 if (*end == '\0') {
 562                         *port = '\0';
 563                         session->port = tmp;
 564                 }
 565         }
 566
 567         session->host = g_strdup(host);
 568
 569         g_free(scheme);
 570
 571         return 0;
 572 }
 573
 574 static void resolv_result(GResolvResultStatus status,
 575                                         char **results, gpointer user_data)
 576 {
 577         struct web_session *session = user_data;
 578
 579         if (results == NULL || results[0] == NULL) {
 580                 call_result_func(session, 404);
 581                 return;
 582         }
 583
 584         debug(session->web, "address %s", results[0]);
 585
 586         if (inet_aton(results[0], NULL) == 0) {
 587                 call_result_func(session, 400);
 588                 return;
 589         }
 590
 591         session->address = g_strdup(results[0]);
 592
 593         if (create_transport(session) < 0) {
 594                 call_result_func(session, 409);
 595                 return;
 596         }
 597
 598         start_request(session);
 599 }
 600
 601 static guint do_request(GWeb *web, const char *url,
 602                                 const char *type, GWebInputFunc input,
 603                                 GWebResultFunc func, gpointer user_data)
 604 {
 605         struct web_session *session;
 606
 607         if (web == NULL || url == NULL)
 608                 return 0;
 609
 610         debug(web, "request %s", url);
 611
 612         session = g_try_new0(struct web_session, 1);
 613         if (session == NULL)
 614                 return 0;
 615
 616         if (parse_url(session, url) < 0) {
 617                 free_session(session);
 618                 return 0;
 619         }
 620
 621         debug(web, "host %s:%u", session->host, session->port);
 622         debug(web, "flags %lu", session->flags);
 623
 624         if (type != NULL) {
 625                 session->content_type = g_strdup(type);
 626
 627                 debug(web, "content-type %s", session->content_type);
 628         }
 629
 630         session->web = web;
 631
 632         session->result_func = func;
 633         session->input_func = input;
 634         session->user_data = user_data;
 635
 636         session->receive_buffer = g_try_malloc(DEFAULT_BUFFER_SIZE);
 637         if (session->receive_buffer == NULL) {
 638                 free_session(session);
 639                 return 0;
 640         }
 641
 642         session->receive_space = DEFAULT_BUFFER_SIZE;
 643         session->current_header = g_string_sized_new(0);
 644         session->header_done = FALSE;
 645
 646         if (inet_aton(session->host, NULL) == 0) {
 647                 session->resolv_action = g_resolv_lookup_hostname(web->resolv,
 648                                         session->host, resolv_result, session);
 649                 if (session->resolv_action == 0) {
 650                         free_session(session);
 651                         return 0;
 652                 }
 653         } else {
 654                 session->address = g_strdup(session->host);
 655
 656                 if (create_transport(session) < 0) {
 657                         free_session(session);
 658                         return 0;
 659                 }
 660
 661                 start_request(session);
 662         }
 663
 664         web->session_list = g_list_append(web->session_list, session);
 665
 666         return web->next_query_id++;
 667 }
 668
 669 guint g_web_request_get(GWeb *web, const char *url,
 670                                 GWebResultFunc func, gpointer user_data)
 671 {
 672         return do_request(web, url, NULL, NULL, func, user_data);
 673 }
 674
 675 guint g_web_request_post(GWeb *web, const char *url,
 676                                 const char *type, GWebInputFunc input,
 677                                 GWebResultFunc func, gpointer user_data)
 678 {
 679         return do_request(web, url, type, input, func, user_data);
 680 }
 681
 682 gboolean g_web_cancel_request(GWeb *web, guint id)
 683 {
 684         if (web == NULL)
 685                 return FALSE;
 686
 687         return TRUE;
 688 }
 689
 690 guint16 g_web_result_get_status(GWebResult *result)
 691 {
 692         if (result == NULL)
 693                 return 0;
 694
 695         return result->status;
 696 }
 697
 698 gboolean g_web_result_get_chunk(GWebResult *result,
 699                                 const guint8 **chunk, gsize *length)
 700 {
 701         if (result == NULL)
 702                 return FALSE;
 703
 704         if (chunk == NULL)
 705                 return FALSE;
 706
 707         *chunk = result->buffer;
 708
 709         if (length != NULL)
 710                 *length = result->length;
 711
 712         return TRUE;
 713 }
 714
 715 struct _GWebParser {
 716         gint ref_count;
 717         char *begin_token;
 718         char *end_token;
 719         const char *token_str;
 720         size_t token_len;
 721         size_t token_pos;
 722         gboolean intoken;
 723         GString *content;
 724         GWebParserFunc func;
 725         gpointer user_data;
 726 };
 727
 728 GWebParser *g_web_parser_new(const char *begin, const char *end,
 729                                 GWebParserFunc func, gpointer user_data)
 730 {
 731         GWebParser *parser;
 732
 733         parser = g_try_new0(GWebParser, 1);
 734         if (parser == NULL)
 735                 return NULL;
 736
 737         parser->ref_count = 1;
 738
 739         parser->begin_token = g_strdup(begin);
 740         parser->end_token = g_strdup(end);
 741
 742         if (parser->begin_token == NULL) {
 743                 g_free(parser);
 744                 return NULL;
 745         }
 746
 747         parser->func = func;
 748         parser->user_data = user_data;
 749
 750         parser->token_str = parser->begin_token;
 751         parser->token_len = strlen(parser->token_str);
 752         parser->token_pos = 0;
 753
 754         parser->intoken = FALSE;
 755         parser->content = g_string_sized_new(0);
 756
 757         return parser;
 758 }
 759
 760 GWebParser *g_web_parser_ref(GWebParser *parser)
 761 {
 762         if (parser == NULL)
 763                 return NULL;
 764
 765         g_atomic_int_inc(&parser->ref_count);
 766
 767         return parser;
 768 }
 769
 770 void g_web_parser_unref(GWebParser *parser)
 771 {
 772         if (parser == NULL)
 773                 return;
 774
 775         if (g_atomic_int_dec_and_test(&parser->ref_count) == FALSE)
 776                 return;
 777
 778         g_string_free(parser->content, TRUE);
 779
 780         g_free(parser->begin_token);
 781         g_free(parser->end_token);
 782         g_free(parser);
 783 }
 784
 785 void g_web_parser_feed_data(GWebParser *parser,
 786                                 const guint8 *data, gsize length)
 787 {
 788         const guint8 *ptr = data;
 789
 790         if (parser == NULL)
 791                 return;
 792
 793         while (length > 0) {
 794                 guint8 chr = parser->token_str[parser->token_pos];
 795
 796                 if (parser->token_pos == 0) {
 797                         guint8 *pos;
 798
 799                         pos = memchr(ptr, chr, length);
 800                         if (pos == NULL) {
 801                                 if (parser->intoken == TRUE)
 802                                         g_string_append_len(parser->content,
 803                                                         (gchar *) ptr, length);
 804                                 break;
 805                         }
 806
 807                         if (parser->intoken == TRUE)
 808                                 g_string_append_len(parser->content,
 809                                                 (gchar *) ptr, (pos - ptr) + 1);
 810
 811                         length -= (pos - ptr) + 1;
 812                         ptr = pos + 1;
 813
 814                         parser->token_pos++;
 815                         continue;
 816                 }
 817
 818                 if (parser->intoken == TRUE)
 819                         g_string_append_c(parser->content, ptr[0]);
 820
 821                 if (ptr[0] != chr) {
 822                         length--;
 823                         ptr++;
 824
 825                         parser->token_pos = 0;
 826                         continue;
 827                 }
 828
 829                 length--;
 830                 ptr++;
 831
 832                 parser->token_pos++;
 833
 834                 if (parser->token_pos == parser->token_len) {
 835                         if (parser->intoken == FALSE) {
 836                                 g_string_append(parser->content,
 837                                                         parser->token_str);
 838
 839                                 parser->intoken = TRUE;
 840                                 parser->token_str = parser->end_token;
 841                                 parser->token_len = strlen(parser->end_token);
 842                                 parser->token_pos = 0;
 843                         } else {
 844                                 char *str;
 845                                 str = g_string_free(parser->content, FALSE);
 846                                 parser->content = g_string_sized_new(0);
 847                                 if (parser->func)
 848                                         parser->func(str, parser->user_data);
 849                                 g_free(str);
 850
 851                                 parser->intoken = FALSE;
 852                                 parser->token_str = parser->begin_token;
 853                                 parser->token_len = strlen(parser->begin_token);
 854                                 parser->token_pos = 0;
 855                         }
 856                 }
 857         }
 858 }
 859
 860 void g_web_parser_end_data(GWebParser *parser)
 861 {
 862         if (parser == NULL)
 863                 return;
 864 }