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
  19 #ifdef HAVE_CONFIG_H
  20 #       include "config.h"
  21 #endif
  22 #include "php.h"
  23
  24 #include "SAPI.h"
  25 #include "php_ini.h"
  26 #include "ext/standard/info.h"
  27
  28 #include "php_http.h"
  29 #include "php_http_std_defs.h"
  30 #include "php_http_api.h"
  31 #include "php_http_send_api.h"
  32 #include "php_http_cache_api.h"
  33 #include "php_http_request_method_api.h"
  34 #ifdef HTTP_HAVE_CURL
  35 #       include "php_http_request_api.h"
  36 #endif
  37
  38 #ifdef ZEND_ENGINE_2
  39 #       include "php_http_util_object.h"
  40 #       include "php_http_message_object.h"
  41 #       ifndef WONKY
  42 #               include "php_http_response_object.h"
  43 #       endif
  44 #       ifdef HTTP_HAVE_CURL
  45 #               include "php_http_request_object.h"
  46 #               include "php_http_requestpool_object.h"
  47 #       endif
  48 #       include "php_http_exception_object.h"
  49 #endif
  50
  51 #include "missing.h"
  52 #include "phpstr/phpstr.h"
  53
  54 #ifdef HTTP_HAVE_CURL
  55 #       ifdef PHP_WIN32
  56 #               include <winsock2.h>
  57 #       endif
  58 #       include <curl/curl.h>
  59 #endif
  60 #ifdef HTTP_HAVE_MHASH
  61 #       include <mhash.h>
  62 #endif
  63
  64 #include <ctype.h>
  65
  66 ZEND_DECLARE_MODULE_GLOBALS(http);
  67 HTTP_DECLARE_ARG_PASS_INFO();
  68
  69 #ifdef COMPILE_DL_HTTP
  70 ZEND_GET_MODULE(http)
  71 #endif
  72
  73 /* {{{ http_functions[] */
  74 zend_function_entry http_functions[] = {
  75         PHP_FE(http_test, NULL)
  76         PHP_FE(http_date, NULL)
  77         PHP_FE(http_absolute_uri, NULL)
  78         PHP_FE(http_negotiate_language, NULL)
  79         PHP_FE(http_negotiate_charset, NULL)
  80         PHP_FE(http_redirect, NULL)
  81         PHP_FE(http_throttle, NULL)
  82         PHP_FE(http_send_status, NULL)
  83         PHP_FE(http_send_last_modified, NULL)
  84         PHP_FE(http_send_content_type, NULL)
  85         PHP_FE(http_send_content_disposition, NULL)
  86         PHP_FE(http_match_modified, NULL)
  87         PHP_FE(http_match_etag, NULL)
  88         PHP_FE(http_cache_last_modified, NULL)
  89         PHP_FE(http_cache_etag, NULL)
  90         PHP_FE(http_send_data, NULL)
  91         PHP_FE(http_send_file, NULL)
  92         PHP_FE(http_send_stream, NULL)
  93         PHP_FE(http_chunked_decode, NULL)
  94         PHP_FE(http_parse_message, NULL)
  95         PHP_FE(http_parse_headers, NULL)
  96         PHP_FE(http_get_request_headers, NULL)
  97         PHP_FE(http_get_request_body, NULL)
  98         PHP_FE(http_match_request_header, NULL)
  99 #ifdef HTTP_HAVE_CURL
 100         PHP_FE(http_get, http_arg_pass_ref_3)
 101         PHP_FE(http_head, http_arg_pass_ref_3)
 102         PHP_FE(http_post_data, http_arg_pass_ref_4)
 103         PHP_FE(http_post_fields, http_arg_pass_ref_5)
 104         PHP_FE(http_put_file, http_arg_pass_ref_4)
 105         PHP_FE(http_put_stream, http_arg_pass_ref_4)
 106 #endif
 107         PHP_FE(http_request_method_register, NULL)
 108         PHP_FE(http_request_method_unregister, NULL)
 109         PHP_FE(http_request_method_exists, NULL)
 110         PHP_FE(http_request_method_name, NULL)
 111 #ifndef ZEND_ENGINE_2
 112         PHP_FE(http_build_query, NULL)
 113 #endif
 114         PHP_FE(ob_etaghandler, NULL)
 115
 116         EMPTY_FUNCTION_ENTRY
 117 };
 118 /* }}} */
 119
 120 /* {{{ http_module_entry */
 121 zend_module_entry http_module_entry = {
 122 #if ZEND_MODULE_API_NO >= 20010901
 123         STANDARD_MODULE_HEADER,
 124 #endif
 125         "http",
 126         http_functions,
 127         PHP_MINIT(http),
 128         PHP_MSHUTDOWN(http),
 129         PHP_RINIT(http),
 130         PHP_RSHUTDOWN(http),
 131         PHP_MINFO(http),
 132 #if ZEND_MODULE_API_NO >= 20010901
 133         HTTP_PEXT_VERSION,
 134 #endif
 135         STANDARD_MODULE_PROPERTIES
 136 };
 137 /* }}} */
 138
 139 int http_module_number;
 140
 141 /* {{{ http_globals */
 142 static void http_globals_init_once(zend_http_globals *G)
 143 {
 144         memset(G, 0, sizeof(zend_http_globals));
 145 }
 146
 147 static inline void http_globals_init(zend_http_globals *G)
 148 {
 149         G->send.buffer_size = HTTP_SENDBUF_SIZE;
 150         zend_hash_init(&G->request.methods.custom, 0, NULL, ZVAL_PTR_DTOR, 0);
 151 #ifdef HTTP_HAVE_CURL
 152         zend_llist_init(&G->request.copies.strings, sizeof(char *), http_request_data_free_string, 0);
 153         zend_llist_init(&G->request.copies.slists, sizeof(struct curl_slist *), http_request_data_free_slist, 0);
 154         zend_llist_init(&G->request.copies.contexts, sizeof(http_request_callback_ctx *), http_request_data_free_context, 0);
 155         zend_llist_init(&G->request.copies.convs, sizeof(http_request_conv *), http_request_data_free_conv, 0);
 156 #endif
 157 }
 158
 159 static inline void http_globals_free(zend_http_globals *G)
 160 {
 161         STR_SET(G->send.content_type, NULL);
 162         STR_SET(G->send.unquoted_etag, NULL);
 163         zend_hash_destroy(&G->request.methods.custom);
 164 #ifdef HTTP_HAVE_CURL
 165         zend_llist_clean(&G->request.copies.strings);
 166         zend_llist_clean(&G->request.copies.slists);
 167         zend_llist_clean(&G->request.copies.contexts);
 168         zend_llist_clean(&G->request.copies.convs);
 169 #endif
 170 }
 171 /* }}} */
 172
 173 /* {{{ static inline void http_check_allowed_methods(char *, int) */
 174 #define http_check_allowed_methods(m, l) _http_check_allowed_methods((m), (l) TSRMLS_CC)
 175 static inline void _http_check_allowed_methods(char *methods, int length TSRMLS_DC)
 176 {
 177         if (length && SG(request_info).request_method) {
 178                 if (SUCCESS != http_check_method_ex(SG(request_info).request_method, methods)) {
 179                         char *header = emalloc(length + sizeof("Allow: "));
 180                         sprintf(header, "Allow: %s", methods);
 181                         http_exit(405, header);
 182                 }
 183         }
 184 }
 185 /* }}} */
 186
 187 /* {{{ PHP_INI */
 188 PHP_INI_MH(http_update_allowed_methods)
 189 {
 190         http_check_allowed_methods(new_value, new_value_length);
 191         return OnUpdateString(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC);
 192 }
 193
 194 PHP_INI_DISP(http_etag_mode_displayer)
 195 {
 196         long value;
 197
 198         if (type == ZEND_INI_DISPLAY_ORIG && ini_entry->modified) {
 199                 value = (ini_entry->orig_value) ? atoi(ini_entry->orig_value) : HTTP_ETAG_MD5;
 200         } else if (ini_entry->value) {
 201                 value = (ini_entry->value[0]) ? atoi(ini_entry->value) : HTTP_ETAG_MD5;
 202         } else {
 203                 value = HTTP_ETAG_MD5;
 204         }
 205
 206         switch (value)
 207         {
 208                 case HTTP_ETAG_SHA1:
 209                         ZEND_WRITE("HTTP_ETAG_SHA1", lenof("HTTP_ETAG_SHA1"));
 210                 break;
 211
 212                 case HTTP_ETAG_MD5:
 213 #ifndef HTTP_HAVE_MHASH
 214                 default:
 215 #endif
 216                         ZEND_WRITE("HTTP_ETAG_MD5", lenof("HTTP_ETAG_MD5"));
 217                 break;
 218
 219 #ifdef HTTP_HAVE_MHASH
 220                 default:
 221                 {
 222                         const char *hash_name = mhash_get_hash_name_static(value);
 223
 224                         if (!hash_name) {
 225                                 ZEND_WRITE("HTTP_ETAG_MD5", lenof("HTTP_ETAG_MD5"));
 226                         } else {
 227                                 ZEND_WRITE("HTTP_ETAG_MHASH|MHASH_", lenof("HTTP_ETAG_MHASH|MHASH_"));
 228                                 ZEND_WRITE(hash_name, strlen(hash_name));
 229                         }
 230                 }
 231                 break;
 232 #endif
 233         }
 234 }
 235
 236 #ifndef ZEND_ENGINE_2
 237 #       define OnUpdateLong OnUpdateInt
 238 #endif
 239
 240 PHP_INI_BEGIN()
 241         HTTP_PHP_INI_ENTRY("http.allowed_methods", "", PHP_INI_ALL, http_update_allowed_methods, request.methods.allowed)
 242         HTTP_PHP_INI_ENTRY("http.cache_log", "", PHP_INI_ALL, OnUpdateString, log.cache)
 243         HTTP_PHP_INI_ENTRY("http.redirect_log", "", PHP_INI_ALL, OnUpdateString, log.redirect)
 244         HTTP_PHP_INI_ENTRY("http.allowed_methods_log", "", PHP_INI_ALL, OnUpdateString, log.allowed_methods)
 245         HTTP_PHP_INI_ENTRY("http.composite_log", "", PHP_INI_ALL, OnUpdateString, log.composite)
 246 #ifdef ZEND_ENGINE_2
 247         HTTP_PHP_INI_ENTRY("http.only_exceptions", "0", PHP_INI_ALL, OnUpdateBool, only_exceptions)
 248 #endif
 249         HTTP_PHP_INI_ENTRY_EX("http.etag_mode", "-2", PHP_INI_ALL, OnUpdateLong, http_etag_mode_displayer, etag.mode)
 250 PHP_INI_END()
 251 /* }}} */
 252
 253 /* {{{ SSL */
 254 #if defined(ZTS) && defined(HTTP_HAVE_CURL) && defined(HAVE_OPENSSL_CRYPTO_H)
 255
 256 #include <openssl/crypto.h>
 257
 258 static MUTEX_T *http_ssl_mutex = NULL;
 259
 260 static void http_ssl_lock(int mode, int n, const char * file, int line)
 261 {
 262         if (mode & CRYPTO_LOCK) {
 263                 tsrm_mutex_lock(http_ssl_mutex[n]);
 264         } else {
 265                 tsrm_mutex_unlock(http_ssl_mutex[n]);
 266         }
 267 }
 268 static unsigned long http_ssl_id(void)
 269 {
 270         return (unsigned long) tsrm_thread_id();
 271 }
 272 static inline void http_ssl_init(void)
 273 {
 274         int i, c = CRYPTO_num_locks();
 275         http_ssl_mutex = malloc(c * sizeof(MUTEX_T));
 276
 277         for (i = 0; i < c; ++i) {
 278                 http_ssl_mutex[i] = tsrm_mutex_alloc();
 279         }
 280
 281         CRYPTO_set_id_callback(http_ssl_id);
 282         CRYPTO_set_locking_callback(http_ssl_lock);
 283 }
 284 static inline void http_ssl_cleanup(void)
 285 {
 286         int i, c = CRYPTO_num_locks();
 287
 288         CRYPTO_set_id_callback(NULL);
 289         CRYPTO_set_locking_callback(NULL);
 290
 291         for (i = 0; i < c; ++i) {
 292                 tsrm_mutex_free(http_ssl_mutex[i]);
 293         }
 294 }
 295 #endif
 296 /* }}} */
 297
 298 /* {{{ PHP_MINIT_FUNCTION */
 299 PHP_MINIT_FUNCTION(http)
 300 {
 301         http_module_number = module_number;
 302
 303         ZEND_INIT_MODULE_GLOBALS(http, http_globals_init_once, NULL)
 304
 305         REGISTER_INI_ENTRIES();
 306
 307         HTTP_LONG_CONSTANT("HTTP_ETAG_MD5", HTTP_ETAG_MD5);
 308         HTTP_LONG_CONSTANT("HTTP_ETAG_SHA1", HTTP_ETAG_SHA1);
 309         HTTP_LONG_CONSTANT("HTTP_ETAG_MHASH", HTTP_ETAG_MHASH);
 310
 311 #ifdef HTTP_HAVE_CURL
 312         if (CURLE_OK == curl_global_init(CURL_GLOBAL_ALL)) {
 313 #       if defined(ZTS) && defined(HAVE_OPENSSL_CRYPTO_H)
 314                 curl_version_info_data *cvid = curl_version_info(CURLVERSION_NOW);
 315                 if (cvid && (cvid->features & CURL_VERSION_SSL)) {
 316                         http_ssl_init();
 317                 }
 318 #       endif
 319         } else {
 320                 return FAILURE;
 321         }
 322 #endif /* HTTP_HAVE_CURL */
 323
 324 #ifdef ZEND_ENGINE_2
 325         http_util_object_init();
 326         http_message_object_init();
 327 #       ifndef WONKY
 328         http_response_object_init();
 329 #       endif
 330 #       ifdef HTTP_HAVE_CURL
 331         http_request_object_init();
 332         http_requestpool_object_init();
 333 #       endif /* HTTP_HAVE_CURL */
 334         http_exception_object_init();
 335 #endif /* ZEND_ENGINE_2 */
 336
 337         return SUCCESS;
 338 }
 339 /* }}} */
 340
 341 /* {{{ PHP_MSHUTDOWN_FUNCTION */
 342 PHP_MSHUTDOWN_FUNCTION(http)
 343 {
 344         UNREGISTER_INI_ENTRIES();
 345 #ifdef HTTP_HAVE_CURL
 346         curl_global_cleanup();
 347 #       if defined(ZTS) && defined(HAVE_OPENSSL_CRYPTO_H)
 348         if (http_ssl_mutex) {
 349                 http_ssl_cleanup();
 350         }
 351 #       endif
 352 #endif
 353         return SUCCESS;
 354 }
 355 /* }}} */
 356
 357 /* {{{ PHP_RINIT_FUNCTION */
 358 PHP_RINIT_FUNCTION(http)
 359 {
 360         char *m;
 361
 362         if (m = INI_STR("http.allowed_methods")) {
 363                 http_check_allowed_methods(m, strlen(m));
 364         }
 365
 366         http_globals_init(HTTP_GLOBALS);
 367         return SUCCESS;
 368 }
 369 /* }}} */
 370
 371 /* {{{ PHP_RSHUTDOWN_FUNCTION */
 372 PHP_RSHUTDOWN_FUNCTION(http)
 373 {
 374         http_globals_free(HTTP_GLOBALS);
 375         return SUCCESS;
 376 }
 377 /* }}} */
 378
 379 /* {{{ PHP_MINFO_FUNCTION */
 380 PHP_MINFO_FUNCTION(http)
 381 {
 382         php_info_print_table_start();
 383         {
 384                 php_info_print_table_row(2, "Extended HTTP support:", "enabled");
 385                 php_info_print_table_row(2, "Extension Version:", HTTP_PEXT_VERSION);
 386 #ifdef HTTP_HAVE_CURL
 387                 php_info_print_table_row(2, "cURL HTTP Requests:", curl_version());
 388 #else
 389                 php_info_print_table_row(2, "cURL HTTP Requests:", "disabled");
 390 #endif
 391 #ifdef HTTP_HAVE_MHASH
 392                 {
 393                         char mhash_info[32];
 394
 395                         snprintf(mhash_info, 32, "libmhash/%d", MHASH_API_VERSION);
 396                         php_info_print_table_row(2, "mhash ETag Generator:", mhash_info);
 397                 }
 398 #else
 399                 php_info_print_table_row(2, "mhash ETag Generator:", "disabled");
 400 #endif
 401 #if defined(HTTP_HAVE_MAGIC) && !defined(WONKY)
 402                 php_info_print_table_row(2, "magic MIME Guessing:", "libmagic/unknown");
 403 #else
 404                 php_info_print_table_row(2, "magic MIME Guessing:", "disabled");
 405 #endif
 406                 php_info_print_table_row(2, "Registered Classes:",
 407 #ifndef ZEND_ENGINE_2
 408                         "none"
 409 #else
 410                         "HttpUtil, "
 411                         "HttpMessage, "
 412 #       ifdef HTTP_HAVE_CURL
 413                         "HttpRequest, "
 414                         "HttpRequestPool, "
 415 #       endif
 416 #       ifndef WONKY
 417                         "HttpResponse"
 418 #       endif
 419 #endif
 420                 );
 421         }
 422         php_info_print_table_end();
 423
 424         php_info_print_table_start();
 425         {
 426                 unsigned i;
 427                 zval **custom_method;
 428                 phpstr *known_request_methods = phpstr_new();
 429                 phpstr *custom_request_methods = phpstr_new();
 430
 431                 for (i = HTTP_NO_REQUEST_METHOD+1; i < HTTP_MAX_REQUEST_METHOD; ++i) {
 432                         phpstr_appendl(known_request_methods, http_request_method_name(i));
 433                         phpstr_appends(known_request_methods, ", ");
 434                 }
 435                 FOREACH_HASH_VAL(&HTTP_G(request).methods.custom, custom_method) {
 436                         phpstr_append(custom_request_methods, Z_STRVAL_PP(custom_method), Z_STRLEN_PP(custom_method));
 437                         phpstr_appends(custom_request_methods, ", ");
 438                 }
 439
 440                 phpstr_append(known_request_methods, PHPSTR_VAL(custom_request_methods), PHPSTR_LEN(custom_request_methods));
 441                 phpstr_fix(known_request_methods);
 442                 phpstr_fix(custom_request_methods);
 443
 444                 php_info_print_table_row(2, "Known Request Methods:", PHPSTR_VAL(known_request_methods));
 445                 php_info_print_table_row(2, "Custom Request Methods:",
 446                         PHPSTR_LEN(custom_request_methods) ? PHPSTR_VAL(custom_request_methods) : "none registered");
 447
 448                 phpstr_free(&known_request_methods);
 449                 phpstr_free(&custom_request_methods);
 450         }
 451         php_info_print_table_end();
 452
 453         DISPLAY_INI_ENTRIES();
 454 }
 455 /* }}} */
 456
 457 /*
 458  * Local variables:
 459  * tab-width: 4
 460  * c-basic-offset: 4
 461  * End:
 462  * vim600: noet sw=4 ts=4 fdm=marker
 463  * vim<600: noet sw=4 ts=4
 464  */
 465