git.m6w6.name Git - m6w6/ext-http/blob - http.c

   1 /*
   2    +----------------------------------------------------------------------+
   3    | PECL :: http                                                         |
   4    +----------------------------------------------------------------------+
   5    | This source file is subject to version 3.0 of the PHP license, that  |
   6    | is bundled with this package in the file LICENSE, and is available   |
   7    | through the world-wide-web at http://www.php.net/license/3_0.txt.    |
   8    | If you did not receive a copy of the PHP license and are unable to   |
   9    | obtain it through the world-wide-web, please send a note to          |
  10    | license@php.net so we can mail you a copy immediately.               |
  11    +----------------------------------------------------------------------+
  12    | Copyright (c) 2004-2005 Michael Wallner <mike@php.net>               |
  13    +----------------------------------------------------------------------+
  14 */
  15
  16 /* $Id$ */
  17
  18 #ifdef HAVE_CONFIG_H
  19 #include "config.h"
  20 #endif
  21
  22 #include "php.h"
  23 #include "main/snprintf.h"
  24 #include "ext/standard/info.h"
  25 #include "ext/standard/datetime.h"
  26 #include "ext/session/php_session.h"
  27 #include "ext/standard/php_string.h"
  28 #include "ext/standard/php_smart_str.h"
  29
  30 #include "php_http.h"
  31 #include "php_http_api.h"
  32
  33 #if defined(HAVE_CURL) && HAVE_CURL
  34 #include <curl/curl.h>
  35 #endif
  36
  37 ZEND_DECLARE_MODULE_GLOBALS(http)
  38
  39 #ifdef COMPILE_DL_HTTP
  40 ZEND_GET_MODULE(http)
  41 #endif
  42
  43 /* {{{ http_functions[] */
  44 function_entry http_functions[] = {
  45         PHP_FE(http_date, NULL)
  46         PHP_FE(http_absolute_uri, NULL)
  47         PHP_FE(http_negotiate_language, NULL)
  48         PHP_FE(http_negotiate_charset, NULL)
  49         PHP_FE(http_redirect, NULL)
  50         PHP_FE(http_send_status, NULL)
  51         PHP_FE(http_send_last_modified, NULL)
  52         PHP_FE(http_match_modified, NULL)
  53         PHP_FE(http_match_etag, NULL)
  54         PHP_FE(http_cache_last_modified, NULL)
  55         PHP_FE(http_cache_etag, NULL)
  56         PHP_FE(http_accept_ranges, NULL)
  57         PHP_FE(http_content_type, NULL)
  58         PHP_FE(http_content_disposition, NULL)
  59         PHP_FE(http_send_data, NULL)
  60         PHP_FE(http_send_file, NULL)
  61         PHP_FE(http_send_stream, NULL)
  62         PHP_FE(http_chunked_decode, NULL)
  63         PHP_FE(http_split_response, NULL)
  64 #if defined(HAVE_CURL) && HAVE_CURL
  65         PHP_FE(http_get, NULL)
  66         PHP_FE(http_head, NULL)
  67         PHP_FE(http_post_data, NULL)
  68         PHP_FE(http_post_array, NULL)
  69 #endif
  70         PHP_FE(http_auth_basic, NULL)
  71         PHP_FE(http_auth_basic_cb, NULL)
  72         {NULL, NULL, NULL}
  73 };
  74 /* }}} */
  75
  76 /* {{{ http_module_entry */
  77 zend_module_entry http_module_entry = {
  78 #if ZEND_MODULE_API_NO >= 20010901
  79         STANDARD_MODULE_HEADER,
  80 #endif
  81         "http",
  82         http_functions,
  83         PHP_MINIT(http),
  84         NULL,
  85         NULL,
  86         PHP_RSHUTDOWN(http),
  87         PHP_MINFO(http),
  88 #if ZEND_MODULE_API_NO >= 20010901
  89         PHP_EXT_HTTP_VERSION,
  90 #endif
  91         STANDARD_MODULE_PROPERTIES
  92 };
  93 /* }}} */
  94
  95 #define RETURN_SUCCESS(v) RETURN_BOOL(SUCCESS == (v))
  96
  97 /* {{{ proto string http_date([int timestamp])
  98  *
  99  * This function returns a valid HTTP date regarding RFC 822/1123
 100  * looking like: "Wed, 22 Dec 2004 11:34:47 GMT"
 101  *
 102  */
 103 PHP_FUNCTION(http_date)
 104 {
 105         long t = -1;
 106
 107         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &t) != SUCCESS) {
 108                 RETURN_FALSE;
 109         }
 110
 111         if (t == -1) {
 112                 t = (long) time(NULL);
 113         }
 114
 115         RETURN_STRING(http_date(t), 0);
 116 }
 117 /* }}} */
 118
 119 /* {{{ proto string http_absolute_uri(string url[, string proto])
 120  *
 121  * This function returns an absolute URI constructed from url.
 122  * If the url is already abolute but a different proto was supplied,
 123  * only the proto part of the URI will be updated.  If url has no
 124  * path specified, the path of the current REQUEST_URI will be taken.
 125  * The host will be taken either from the Host HTTP header of the client
 126  * the SERVER_NAME or just localhost if prior are not available.
 127  *
 128  * Some examples:
 129  * <pre>
 130  *  url = "page.php"                    => http://www.example.com/current/path/page.php
 131  *  url = "/page.php"                   => http://www.example.com/page.php
 132  *  url = "/page.php", proto = "https"  => https://www.example.com/page.php
 133  * </pre>
 134  *
 135  */
 136 PHP_FUNCTION(http_absolute_uri)
 137 {
 138         char *url = NULL, *proto = NULL;
 139         int url_len = 0, proto_len = 0;
 140
 141         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s", &url, &url_len, &proto, &proto_len) != SUCCESS) {
 142                 RETURN_FALSE;
 143         }
 144
 145         RETURN_STRING(http_absolute_uri(url, proto), 0);
 146 }
 147 /* }}} */
 148
 149 /* {{{ proto string http_negotiate_language(array supported[, string default = 'en-US'])
 150  *
 151  * This function negotiates the clients preferred language based on its
 152  * Accept-Language HTTP header.  It returns the negotiated language or
 153  * the default language if none match.
 154  *
 155  * The qualifier is recognized and languages without qualifier are rated highest.
 156  *
 157  * The supported parameter is expected to be an array having
 158  * the supported languages as array values.
 159  *
 160  * Example:
 161  * <pre>
 162  * <?php
 163  * $langs = array(
 164  *              'en-US',// default
 165  *              'fr',
 166  *              'fr-FR',
 167  *              'de',
 168  *              'de-DE',
 169  *              'de-AT',
 170  *              'de-CH',
 171  * );
 172  * include './langs/'. http_negotiate_language($langs) .'.php';
 173  * ?>
 174  * </pre>
 175  *
 176  */
 177 PHP_FUNCTION(http_negotiate_language)
 178 {
 179         zval *supported;
 180         char *def = NULL;
 181         int def_len = 0;
 182
 183         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a|s", &supported, &def, &def_len) != SUCCESS) {
 184                 RETURN_FALSE;
 185         }
 186
 187         if (!def) {
 188                 def = "en-US";
 189         }
 190
 191         RETURN_STRING(http_negotiate_language(supported, def), 0);
 192 }
 193 /* }}} */
 194
 195 /* {{{ proto string http_negotiate_charset(array supported[, string default = 'iso-8859-1'])
 196  *
 197  * This function negotiates the clients preferred charset based on its
 198  * Accept-Charset HTTP header.  It returns the negotiated charset or
 199  * the default charset if none match.
 200  *
 201  * The qualifier is recognized and charset without qualifier are rated highest.
 202  *
 203  * The supported parameter is expected to be an array having
 204  * the supported charsets as array values.
 205  *
 206  * Example:
 207  * <pre>
 208  * <?php
 209  * $charsets = array(
 210  *              'iso-8859-1', // default
 211  *              'iso-8859-2',
 212  *              'iso-8859-15',
 213  *              'utf-8'
 214  * );
 215  * $pref = http_negotiate_charset($charsets);
 216  * if (!strcmp($pref, 'iso-8859-1')) {
 217  *              iconv_set_encoding('internal_encoding', 'iso-8859-1');
 218  *              iconv_set_encoding('output_encoding', $pref);
 219  *              ob_start('ob_iconv_handler');
 220  * }
 221  * ?>
 222  * </pre>
 223  */
 224 PHP_FUNCTION(http_negotiate_charset)
 225 {
 226         zval *supported;
 227         char *def = NULL;
 228         int def_len = 0;
 229
 230         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a|s", &supported, &def, &def_len) != SUCCESS) {
 231                 RETURN_FALSE;
 232         }
 233
 234         if (!def) {
 235                 def = "iso-8859-1";
 236         }
 237
 238         RETURN_STRING(http_negotiate_charset(supported, def), 0);
 239 }
 240 /* }}} */
 241
 242 /* {{{ proto bool http_send_status(int status)
 243  *
 244  * Send HTTP status code.
 245  * This function sends the desired HTTP status code along with its corresponding
 246  * status message, e.g. calling http_send_status(304) will issue a
 247  * "Status: 304 Not Modified" with CGI-SAPIs and "HTTP/1.1 304 Not Modified"
 248  * when PHP is run as web server module.
 249  *
 250  */
 251 PHP_FUNCTION(http_send_status)
 252 {
 253         int status = 0;
 254
 255         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status) != SUCCESS) {
 256                 RETURN_FALSE;
 257         }
 258         if (status < 100 || status > 510) {
 259                 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid HTTP status code (100-510): %d", status);
 260                 RETURN_FALSE;
 261         }
 262
 263         RETURN_SUCCESS(http_send_status(status));
 264 }
 265 /* }}} */
 266
 267 /* {{{ proto bool http_send_last_modified([int timestamp])
 268  *
 269  * This converts the given timestamp to a valid HTTP date and
 270  * sends it as "Last-Modified" HTTP header.  If timestamp is
 271  * omitted, current time is taken.
 272  *
 273  */
 274 PHP_FUNCTION(http_send_last_modified)
 275 {
 276         long t = -1;
 277
 278         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &t) != SUCCESS) {
 279                 RETURN_FALSE;
 280         }
 281
 282         if (t == -1) {
 283                 t = (long) time(NULL);
 284         }
 285
 286         RETURN_SUCCESS(http_send_last_modified(t));
 287 }
 288 /* }}} */
 289
 290 /* {{{ proto bool http_match_modified([int timestamp])
 291  *
 292  * Matches the given timestamp against the clients "If-Modified-Since" and
 293  * "If-Unmodified-Since" HTTP headers.
 294  *
 295  */
 296 PHP_FUNCTION(http_match_modified)
 297 {
 298         long t = -1;
 299
 300         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &t) != SUCCESS) {
 301                 RETURN_FALSE;
 302         }
 303
 304         // current time if not supplied (senseless though)
 305         if (t == -1) {
 306                 t = (long) time(NULL);
 307         }
 308
 309         RETURN_BOOL(http_modified_match("HTTP_IF_MODIFIED_SINCE", t) || http_modified_match("HTTP_IF_UNMODIFIED_SINCE", t));
 310 }
 311 /* }}} */
 312
 313 /* {{{ proto bool http_match_etag(string etag)
 314  *
 315  * This matches the given ETag against the clients
 316  * "If-Match" and "If-None-Match" HTTP headers.
 317  *
 318  */
 319 PHP_FUNCTION(http_match_etag)
 320 {
 321         int etag_len;
 322         char *etag;
 323
 324         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &etag, &etag_len) != SUCCESS) {
 325                 RETURN_FALSE;
 326         }
 327
 328         RETURN_BOOL(http_etag_match("HTTP_IF_NONE_MATCH", etag) || http_etag_match("HTTP_IF_MATCH", etag));
 329 }
 330 /* }}} */
 331
 332 /* {{{ proto bool http_cache_last_modified([int timestamp_or_expires]])
 333  *
 334  * If timestamp_or_exires is greater than 0, it is handled as timestamp
 335  * and will be sent as date of last modification.  If it is 0 or omitted,
 336  * the current time will be sent as Last-Modified date.  If it's negative,
 337  * it is handled as expiration tim in seconds, which means that if the
 338  * requested last modification date is not between the calculated timespan,
 339  * the Last-Modified header is updated and the actual body will be sent.
 340  *
 341  */
 342 PHP_FUNCTION(http_cache_last_modified)
 343 {
 344         long last_modified = 0, send_modified = 0, t;
 345         zval *zlm;
 346
 347         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &last_modified) != SUCCESS) {
 348                 RETURN_FALSE;
 349         }
 350
 351         t = (long) time(NULL);
 352
 353         /* 0 or omitted */
 354         if (!last_modified) {
 355                 /* does the client have? */
 356                 if (zlm = http_get_server_var("HTTP_IF_MODIFIED_SINCE")) {
 357                         last_modified = send_modified = http_parse_date(Z_STRVAL_P(zlm));
 358                 /* use current time */
 359                 } else {
 360                         last_modified = send_modified = t;
 361                 }
 362         /* negative value is supposed to be expiration time */
 363         } else if (last_modified < 0) {
 364                 last_modified += t;
 365                 send_modified  = t;
 366         /* send supplied time explicitly */
 367         } else {
 368                 send_modified = last_modified;
 369         }
 370
 371         http_send_header("Cache-Control: private, must-revalidate, max-age=0");
 372
 373         if (http_modified_match("HTTP_IF_MODIFIED_SINCE", last_modified)) {
 374                 if (SUCCESS == http_send_status(304)) {
 375                         zend_bailout();
 376                 } else {
 377                         php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not send 304 Not Modified");
 378                         RETURN_FALSE;
 379                 }
 380         }
 381         RETURN_SUCCESS(http_send_last_modified(send_modified));
 382 }
 383 /* }}} */
 384
 385 /* {{{ proto bool http_cache_etag([string etag])
 386  *
 387  * This function attempts to cache the HTTP body based on an ETag,
 388  * either supplied or generated through calculation of the MD5
 389  * checksum of the output (uses output buffering).
 390  *
 391  * If clients "If-None-Match" header matches the supplied/calculated
 392  * ETag, the body is considered cached on the clients side and
 393  * a "304 Not Modified" status code is issued.
 394  *
 395  */
 396 PHP_FUNCTION(http_cache_etag)
 397 {
 398         char *etag;
 399         int etag_len = 0;
 400
 401         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &etag, &etag_len) != SUCCESS) {
 402                 RETURN_FALSE;
 403         }
 404
 405         /* send remaining data to nirvana */
 406         http_send_header("Connection: close");
 407         http_send_header("Cache-Control: private, must-revalidate, max-age=0");
 408
 409         /* if no etag is given and we didn't already
 410          * start ob_etaghandler -- start it
 411          */
 412         if (!HTTP_G(etag_started) && !etag_len) {
 413                 php_ob_set_internal_handler(_http_ob_etaghandler, (uint) 4096, "etag output handler", 0 TSRMLS_CC);
 414                 HTTP_G(etag_started) = 1;
 415                 RETURN_BOOL(php_start_ob_buffer_named("etag output handler", (uint) 4096, 0 TSRMLS_CC));
 416         }
 417
 418         if (http_etag_match("HTTP_IF_NONE_MATCH", etag)) {
 419                 if (SUCCESS == http_send_status(304)) {
 420                         zend_bailout();
 421                 } else {
 422                         php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not send 304 Not Modified");
 423                         RETURN_FALSE;
 424                 }
 425         }
 426
 427         RETURN_SUCCESS(http_send_etag(etag, etag_len));
 428 }
 429 /* }}} */
 430
 431 /* {{{ proto void http_redirect([string url[, array params[, bool session,[ bool permanent]]]])
 432  *
 433  * Redirect to a given url.
 434  * The supplied url will be expanded with http_absolute_uri(), the params array will
 435  * be treated with http_build_query() and the session identification will be appended
 436  * if session is true.
 437  *
 438  * Depending on permanent the redirection will be issued with a permanent
 439  * ("301 Moved Permanently") or a temporary ("302 Found") redirection
 440  * status code.
 441  *
 442  */
 443 PHP_FUNCTION(http_redirect)
 444 {
 445         int url_len;
 446         zend_bool session = 0, permanent = 0;
 447         zval *params = NULL;
 448         smart_str qstr = {0};
 449         char *url, *URI, LOC[HTTP_URI_MAXLEN + 9];
 450
 451         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|sa!bb", &url, &url_len, &params, &session, &permanent) != SUCCESS) {
 452                 RETURN_FALSE;
 453         }
 454
 455         /* append session info */
 456         if (session && (PS(session_status) == php_session_active)) {
 457                 if (!params) {
 458                         MAKE_STD_ZVAL(params);
 459                         array_init(params);
 460                 }
 461                 if (add_assoc_string(params, PS(session_name), PS(id), 1) != SUCCESS) {
 462                         php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not append session information");
 463                 }
 464         }
 465
 466         /* treat params array with http_build_query() */
 467         if (params) {
 468                 if (php_url_encode_hash_ex(Z_ARRVAL_P(params), &qstr, NULL,0,NULL,0,NULL,0,NULL TSRMLS_CC) != SUCCESS) {
 469                         if (qstr.c) {
 470                                 efree(qstr.c);
 471                         }
 472                         php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not encode query parameters");
 473                         RETURN_FALSE;
 474                 }
 475                 smart_str_0(&qstr);
 476         }
 477
 478         URI = http_absolute_uri(url, NULL);
 479         if (qstr.c) {
 480                 snprintf(LOC, HTTP_URI_MAXLEN + strlen("Location: "), "Location: %s?%s", URI, qstr.c);
 481                 efree(qstr.c);
 482         } else {
 483                 snprintf(LOC, HTTP_URI_MAXLEN + strlen("Location: "), "Location: %s", URI);
 484         }
 485         efree(URI);
 486
 487         RETVAL_BOOL((SUCCESS == http_send_header(LOC)) && (SUCCESS == http_send_status((permanent ? 301 : 302))));
 488 }
 489 /* }}} */
 490
 491 /* {{{ proto bool http_send_data(string data)
 492  *
 493  * Sends raw data with support for (multiple) range requests.
 494  *
 495  */
 496 PHP_FUNCTION(http_send_data)
 497 {
 498         zval *zdata;
 499
 500         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &zdata) != SUCCESS) {
 501                 RETURN_FALSE;
 502         }
 503
 504         convert_to_string_ex(&zdata);
 505
 506         RETURN_SUCCESS(http_send_data(zdata));
 507 }
 508 /* }}} */
 509
 510 /* {{{ proto bool http_send_file(string file)
 511  *
 512  * Sends a file with support for (multiple) range requests.
 513  *
 514  */
 515 PHP_FUNCTION(http_send_file)
 516 {
 517         zval *zfile;
 518
 519         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &zfile) != SUCCESS) {
 520                 RETURN_FALSE;
 521         }
 522
 523         convert_to_string_ex(&zfile);
 524
 525         RETURN_SUCCESS(http_send_file(zfile));
 526 }
 527 /* }}} */
 528
 529 /* {{{ proto bool http_send_stream(resource stream)
 530  *
 531  * Sends an already opened stream with support for (multiple) range requests.
 532  *
 533  */
 534 PHP_FUNCTION(http_send_stream)
 535 {
 536         zval *zstream;
 537         php_stream *file;
 538
 539         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &zstream) != SUCCESS) {
 540                 RETURN_FALSE;
 541         }
 542
 543         php_stream_from_zval(file, &zstream);
 544
 545         RETURN_SUCCESS(http_send_stream(file));
 546 }
 547 /* }}} */
 548
 549 /* {{{ proto bool http_accept_ranges(void)
 550  *
 551  * Issues a "Accept-Ranges: bytes" header.
 552  *
 553  * Example:
 554  * <pre>
 555  * <?php
 556  * http_content_type('application/x-zip');
 557  * http_content_disposition('latest.zip');
 558  * http_accept_ranges();
 559  * http_cache_etag();
 560  * http_send_file('../some/download.zip');
 561  * ?>
 562  * </pre>
 563  *
 564  */
 565 PHP_FUNCTION(http_accept_ranges)
 566 {
 567         if (ZEND_NUM_ARGS()) {
 568                 WRONG_PARAM_COUNT;
 569         }
 570         RETURN_SUCCESS(http_send_header("Accept-Ranges: bytes"));
 571 }
 572 /* }}} */
 573
 574 /* {{{ proto bool http_content_type([string content_type = 'application/x-octetstream'])
 575  *
 576  * Sets the content type.
 577  *
 578  */
 579 PHP_FUNCTION(http_content_type)
 580 {
 581         char *ct, *content_type;
 582         int ct_len = 0;
 583
 584         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &ct, &ct_len) != SUCCESS) {
 585                 RETURN_FALSE;
 586         }
 587
 588         if (!ct_len) {
 589                 RETURN_SUCCESS(http_send_header("Content-Type: application/x-octetstream"));
 590         }
 591
 592         /* remember for multiple ranges */
 593         if (HTTP_G(ctype)) {
 594                 efree(HTTP_G(ctype));
 595         }
 596         HTTP_G(ctype) = estrndup(ct, ct_len);
 597
 598         content_type = (char *) emalloc(strlen("Content-Type: ") + ct_len + 1);
 599         sprintf(content_type, "Content-Type: %s", ct);
 600
 601         RETVAL_BOOL(SUCCESS == http_send_header(content_type));
 602         efree(content_type);
 603 }
 604 /* }}} */
 605
 606 /* {{{ proto bool http_content_disposition(string filename[, bool inline = false])
 607  *
 608  * Set the Content Disposition.  The Content-Disposition header is very useful
 609  * if the data actually sent came from a file or something similar, that should
 610  * be "saved" by the client/user (i.e. by browsers "Save as..." popup window).
 611  *
 612  */
 613 PHP_FUNCTION(http_content_disposition)
 614 {
 615         char *filename, *header;
 616         int f_len;
 617         zend_bool send_inline = 0;
 618
 619         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &filename, &f_len, &send_inline) != SUCCESS) {
 620                 RETURN_FALSE;
 621         }
 622
 623         if (send_inline) {
 624                 header = (char *) emalloc(strlen("Content-Disposition: inline; filename=\"\"") + f_len + 1);
 625                 sprintf(header, "Content-Disposition: inline; filename=\"%s\"", filename);
 626         } else {
 627                 header = (char *) emalloc(strlen("Content-Disposition: attachment; filename=\"\"") + f_len + 1);
 628                 sprintf(header, "Content-Disposition: attachment; filename=\"%s\"", filename);
 629         }
 630
 631         RETVAL_BOOL(SUCCESS == http_send_header(header));
 632         efree(header);
 633 }
 634 /* }}} */
 635
 636 /* {{{ proto string http_chunked_decode(string encoded)
 637  *
 638  * This function decodes a string that was HTTP-chunked encoded.
 639  * Returns false on failure.
 640  */
 641 PHP_FUNCTION(http_chunked_decode)
 642 {
 643         char *encoded = NULL, *decoded = NULL;
 644         int encoded_len = 0, decoded_len = 0;
 645
 646         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &encoded, &encoded_len) != SUCCESS) {
 647                 RETURN_FALSE;
 648         }
 649
 650         if (SUCCESS == http_chunked_decode(encoded, encoded_len, &decoded, &decoded_len)) {
 651                 RETURN_STRINGL(decoded, decoded_len, 0);
 652         } else {
 653                 RETURN_FALSE;
 654         }
 655 }
 656 /* }}} */
 657
 658 /* {{{ proto array http_split_response(string http_response)
 659  *
 660  * This function splits an HTTP response into an array with headers and the
 661  * content body. The returned array may look simliar to the following example:
 662  *
 663  * <pre>
 664  * array(
 665  *     0 => array(
 666  *         'Status' => '200 Ok',
 667  *         'Content-Type' => 'text/plain',
 668  *         'Content-Language' => 'en-US'
 669  *     ),
 670  *     1 => "Hello World!"
 671  * );
 672  * </pre>
 673  */
 674 PHP_FUNCTION(http_split_response)
 675 {
 676         zval *zresponse, *zbody, *zheaders;
 677
 678         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &zresponse) != SUCCESS) {
 679                 RETURN_FALSE;
 680         }
 681
 682         convert_to_string_ex(&zresponse);
 683
 684         MAKE_STD_ZVAL(zbody);
 685         MAKE_STD_ZVAL(zheaders);
 686         array_init(zheaders);
 687
 688         http_split_response(zresponse, zheaders, zbody);
 689
 690         array_init(return_value);
 691         add_index_zval(return_value, 0, zheaders);
 692         add_index_zval(return_value, 1, zbody);
 693 }
 694 /* }}} */
 695
 696 /* {{{ HAVE_CURL */
 697 #if defined(HAVE_CURL) && HAVE_CURL
 698
 699 /* {{{ proto string http_get(string url[, array options])
 700  *
 701  * Performs an HTTP GET request on the supplied url.
 702  *
 703  * The second parameter is expected to be an associative
 704  * array where the following keys will be recognized:
 705  * <pre>
 706  *  - redirect:         int, whether and how many redirects to follow
 707  *  - unrestrictedauth: bool, whether to continue sending credentials on
 708  *                          redirects to a different host
 709  *  - proxyhost:        string, proxy host in "host[:port]" format
 710  *  - proxyport:        int, use another proxy port as specified in proxyhost
 711  *  - proxyauth:        string, proxy credentials in "user:pass" format
 712  *  - proxyauthtype:    int, HTTP_AUTH_BASIC and/or HTTP_AUTH_NTLM
 713  *  - httpauth:         string, http credentials in "user:pass" format
 714  *  - httpauthtype:     int, HTTP_AUTH_BASIC, DIGEST and/or NTLM
 715  *  - compress:         bool, whether to allow gzip/deflate content encoding
 716  *  - port:             int, use another port as specified in the url
 717  *  - referer:          string, the referer to sends
 718  *  - useragent:        string, the user agent to send
 719  *  - headers:          array, list of custom headers in "header: value" format
 720  *  - cookies:          array, list of cookies in "name=value" format
 721  *  - cookiestore:      string, path to a file where cookies are/will be stored
 722  * </pre>
 723  */
 724 PHP_FUNCTION(http_get)
 725 {
 726         char *URL, *data = NULL;
 727         size_t data_len = 0;
 728         int URL_len;
 729         zval *options = NULL;
 730
 731         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|a", &URL, &URL_len, &options) != SUCCESS) {
 732                 RETURN_FALSE;
 733         }
 734
 735         if (SUCCESS == http_get(URL, options ? Z_ARRVAL_P(options) : NULL, &data, &data_len)) {
 736                 RETURN_STRINGL(data, data_len, 0);
 737         } else {
 738                 RETURN_FALSE;
 739         }
 740 }
 741 /* }}} */
 742
 743 /* {{{ proto string http_head(string url[, array options])
 744  *
 745  * Performs an HTTP HEAD request on the suppied url.
 746  * Returns the HTTP response as string.
 747  * See http_get() for a full list of available options.
 748  */
 749 PHP_FUNCTION(http_head)
 750 {
 751         char *URL, *data = NULL;
 752         size_t data_len = 0;
 753         int URL_len;
 754         zval *options = NULL;
 755
 756         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|a", &URL, &URL_len, &options) != SUCCESS) {
 757                 RETURN_FALSE;
 758         }
 759
 760         if (SUCCESS == http_head(URL, options ? Z_ARRVAL_P(options) : NULL, &data, &data_len)) {
 761                 RETURN_STRINGL(data, data_len, 0);
 762         } else {
 763                 RETURN_FALSE;
 764         }
 765 }
 766 /* }}} */
 767
 768 /* {{{ proto string http_post_data(string url, string data[, array options])
 769  *
 770  * Performs an HTTP POST request, posting data.
 771  * Returns the HTTP response as string.
 772  * See http_get() for a full list of available options.
 773  */
 774 PHP_FUNCTION(http_post_data)
 775 {
 776         char *URL, *postdata, *data = NULL;
 777         size_t data_len = 0;
 778         int postdata_len, URL_len;
 779         zval *options = NULL;
 780
 781         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|a", &URL, &URL_len, &postdata, &postdata_len, &options) != SUCCESS) {
 782                 RETURN_FALSE;
 783         }
 784
 785         if (SUCCESS == http_post_data(URL, postdata, (size_t) postdata_len, options ? Z_ARRVAL_P(options) : NULL, &data, &data_len)) {
 786                 RETURN_STRINGL(data, data_len, 0);
 787         } else {
 788                 RETURN_FALSE;
 789         }
 790 }
 791 /* }}} */
 792
 793 /* {{{ proto string http_post_data(string url, array data[, array options])
 794  *
 795  * Performs an HTTP POST request, posting www-form-urlencoded array data.
 796  * Returns the HTTP response as string.
 797  * See http_get() for a full list of available options.
 798  */
 799 PHP_FUNCTION(http_post_array)
 800 {
 801         char *URL, *data = NULL;
 802         size_t data_len = 0;
 803         int URL_len;
 804         zval *options = NULL, *postdata;
 805
 806         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sa|a", &URL, &URL_len, &postdata, &options) != SUCCESS) {
 807                 RETURN_FALSE;
 808         }
 809
 810         if (SUCCESS == http_post_array(URL, Z_ARRVAL_P(postdata), options ? Z_ARRVAL_P(options) : NULL, &data, &data_len)) {
 811                 RETURN_STRINGL(data, data_len, 0);
 812         } else {
 813                 RETURN_FALSE;
 814         }
 815 }
 816 /* }}} */
 817
 818 #endif
 819 /* }}} HAVE_CURL */
 820
 821
 822 /* {{{ proto bool http_auth_basic(string user, string pass[, string realm = "Restricted"])
 823  *
 824  * Example:
 825  * <pre>
 826  * <?php
 827  * if (!http_auth_basic('mike', 's3c|r3t')) {
 828  *     die('<h1>Authorization failed!</h1>');
 829  * }
 830  * ?>
 831  * </pre>
 832  */
 833 PHP_FUNCTION(http_auth_basic)
 834 {
 835         char *realm = NULL, *user, *pass, *suser, *spass;
 836         int r_len, u_len, p_len;
 837
 838         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|s", &user, &u_len, &pass, &p_len, &realm, &r_len) != SUCCESS) {
 839                 RETURN_FALSE;
 840         }
 841
 842         if (!realm) {
 843                 realm = "Restricted";
 844         }
 845
 846         if (SUCCESS != http_auth_credentials(&suser, &spass)) {
 847                 http_auth_header("Basic", realm);
 848                 RETURN_FALSE;
 849         }
 850
 851         if (strcasecmp(suser, user)) {
 852                 http_auth_header("Basic", realm);
 853                 RETURN_FALSE;
 854         }
 855
 856         if (strcmp(spass, pass)) {
 857                 http_auth_header("Basic", realm);
 858                 RETURN_FALSE;
 859         }
 860
 861         RETURN_TRUE;
 862 }
 863 /* }}} */
 864
 865 /* {{{ proto bool http_auth_basic_cb(mixed callback[, string realm = "Restricted"])
 866  *
 867  * Example:
 868  * <pre>
 869  * <?php
 870  * function auth_cb($user, $pass)
 871  * {
 872  *     global $db;
 873  *     $query = 'SELECT pass FROM users WHERE user='. $db->quoteSmart($user);
 874  *     if (strlen($realpass = $db->getOne($query)) {
 875  *         return $pass === $realpass;
 876  *     }
 877  *     return false;
 878  * }
 879  *
 880  * if (!http_auth_basic_cb('auth_cb')) {
 881  *     die('<h1>Authorization failed</h1>');
 882  * }
 883  * ?>
 884  * </pre>
 885  */
 886 PHP_FUNCTION(http_auth_basic_cb)
 887 {
 888         zval *cb;
 889         char *realm = NULL, *user, *pass;
 890         int r_len;
 891
 892         if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|s", &cb, &realm, &r_len) != SUCCESS) {
 893                 RETURN_FALSE;
 894         }
 895
 896         if (!realm) {
 897                 realm = "Restricted";
 898         }
 899
 900         if (SUCCESS != http_auth_credentials(&user, &pass)) {
 901                 http_auth_header("Basic", realm);
 902                 RETURN_FALSE;
 903         }
 904         {
 905                 zval *zparams[2] = {NULL, NULL}, retval;
 906                 int result = 0;
 907
 908                 MAKE_STD_ZVAL(zparams[0]);
 909                 MAKE_STD_ZVAL(zparams[1]);
 910                 ZVAL_STRING(zparams[0], user, 0);
 911                 ZVAL_STRING(zparams[1], pass, 0);
 912
 913                 if (SUCCESS == call_user_function(EG(function_table), NULL, cb,
 914                                 &retval, 2, zparams TSRMLS_CC)) {
 915                         result = Z_LVAL(retval);
 916                 }
 917
 918                 efree(user);
 919                 efree(pass);
 920                 efree(zparams[0]);
 921                 efree(zparams[1]);
 922
 923                 if (!result) {
 924                         http_auth_header("Basic", realm);
 925                 }
 926
 927                 RETURN_BOOL(result);
 928         }
 929 }
 930 /* }}}*/
 931
 932
 933 /* {{{ php_http_init_globals(zend_http_globals *) */
 934 static void php_http_init_globals(zend_http_globals *http_globals)
 935 {
 936         http_globals->etag_started = 0;
 937         http_globals->ctype = NULL;
 938 #if defined(HAVE_CURL) && HAVE_CURL
 939         http_globals->curlbuf.body.data = NULL;
 940         http_globals->curlbuf.body.used = 0;
 941         http_globals->curlbuf.body.free = 0;
 942         http_globals->curlbuf.hdrs.data = NULL;
 943         http_globals->curlbuf.hdrs.used = 0;
 944         http_globals->curlbuf.hdrs.free = 0;
 945 #endif
 946 }
 947 /* }}} */
 948
 949 /* {{{ PHP_MINIT_FUNCTION */
 950 PHP_MINIT_FUNCTION(http)
 951 {
 952         ZEND_INIT_MODULE_GLOBALS(http, php_http_init_globals, NULL);
 953 #if defined(HAVE_CURL) && HAVE_CURL
 954         REGISTER_LONG_CONSTANT("HTTP_AUTH_BASIC", CURLAUTH_BASIC, CONST_CS | CONST_PERSISTENT);
 955         REGISTER_LONG_CONSTANT("HTTP_AUTH_DIGEST", CURLAUTH_DIGEST, CONST_CS | CONST_PERSISTENT);
 956         REGISTER_LONG_CONSTANT("HTTP_AUTH_NTLM", CURLAUTH_NTLM, CONST_CS | CONST_PERSISTENT);
 957 #endif
 958         return SUCCESS;
 959 }
 960 /* }}} */
 961
 962 /* {{{ PHP_RSHUTDOWN_FUNCTION */
 963 PHP_RSHUTDOWN_FUNCTION(http)
 964 {
 965         if (HTTP_G(ctype)) {
 966                 efree(HTTP_G(ctype));
 967         }
 968 #if defined(HAVE_CURL) && HAVE_CURL
 969         if (HTTP_G(curlbuf).body.data) {
 970                 efree(HTTP_G(curlbuf).body.data);
 971         }
 972         if (HTTP_G(curlbuf).hdrs.data) {
 973                 efree(HTTP_G(curlbuf).hdrs.data);
 974         }
 975 #endif
 976         return SUCCESS;
 977 }
 978 /* }}} */
 979
 980 /* {{{ PHP_MINFO_FUNCTION */
 981 PHP_MINFO_FUNCTION(http)
 982 {
 983         php_info_print_table_start();
 984         php_info_print_table_header(2, "Extended HTTP support", "enabled");
 985         php_info_print_table_row(2, "Version:", PHP_EXT_HTTP_VERSION);
 986         php_info_print_table_row(2, "cURL convenience functions:",
 987 #if defined(HAVE_CURL) && HAVE_CURL
 988                         "enabled"
 989 #else
 990                         "disabled"
 991 #endif
 992         );
 993         php_info_print_table_end();
 994 }
 995 /* }}} */
 996
 997 /*
 998  * Local variables:
 999  * tab-width: 4
1000  * c-basic-offset: 4
1001  * End:
1002  * vim600: noet sw=4 ts=4 fdm=marker
1003  * vim<600: noet sw=4 ts=4
1004  */