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 #       if defined(ZTS) && defined(HTTP_HAVE_SSL)
  56 #               if !defined(HAVE_OPENSSL_CRYPTO_H)
  57 #                       error "libcurl was compiled with OpenSSL support, but we have no crypto.h"
  58 #               else
  59 #                       define HTTP_NEED_SSL
  60 #                       include <openssl/crypto.h>
  61 #               endif
  62 #       endif
  63 #       ifdef PHP_WIN32
  64 #               include <winsock2.h>
  65 #       endif
  66 #       include <curl/curl.h>
  67 #endif
  68 #ifdef HTTP_HAVE_MHASH
  69 #       include <mhash.h>
  70 #endif
  71
  72 #include <ctype.h>
  73
  74 ZEND_DECLARE_MODULE_GLOBALS(http);
  75 HTTP_DECLARE_ARG_PASS_INFO();
  76
  77 #ifdef COMPILE_DL_HTTP
  78 ZEND_GET_MODULE(http)
  79 #endif
  80
  81 /* {{{ http_functions[] */
  82 zend_function_entry http_functions[] = {
  83         PHP_FE(http_test, NULL)
  84         PHP_FE(http_date, NULL)
  85         PHP_FE(http_absolute_uri, NULL)
  86         PHP_FE(http_negotiate_language, NULL)
  87         PHP_FE(http_negotiate_charset, NULL)
  88         PHP_FE(http_redirect, NULL)
  89         PHP_FE(http_throttle, NULL)
  90         PHP_FE(http_send_status, NULL)
  91         PHP_FE(http_send_last_modified, NULL)
  92         PHP_FE(http_send_content_type, NULL)
  93         PHP_FE(http_send_content_disposition, NULL)
  94         PHP_FE(http_match_modified, NULL)
  95         PHP_FE(http_match_etag, NULL)
  96         PHP_FE(http_cache_last_modified, NULL)
  97         PHP_FE(http_cache_etag, NULL)
  98         PHP_FE(http_send_data, NULL)
  99         PHP_FE(http_send_file, NULL)
 100         PHP_FE(http_send_stream, NULL)
 101         PHP_FE(http_chunked_decode, NULL)
 102         PHP_FE(http_parse_message, NULL)
 103         PHP_FE(http_parse_headers, NULL)
 104         PHP_FE(http_get_request_headers, NULL)
 105         PHP_FE(http_get_request_body, NULL)
 106         PHP_FE(http_match_request_header, NULL)
 107 #ifdef HTTP_HAVE_CURL
 108         PHP_FE(http_get, http_arg_pass_ref_3)
 109         PHP_FE(http_head, http_arg_pass_ref_3)
 110         PHP_FE(http_post_data, http_arg_pass_ref_4)
 111         PHP_FE(http_post_fields, http_arg_pass_ref_5)
 112         PHP_FE(http_put_file, http_arg_pass_ref_4)
 113         PHP_FE(http_put_stream, http_arg_pass_ref_4)
 114 #endif
 115         PHP_FE(http_request_method_register, NULL)
 116         PHP_FE(http_request_method_unregister, NULL)
 117         PHP_FE(http_request_method_exists, NULL)
 118         PHP_FE(http_request_method_name, NULL)
 119 #ifndef ZEND_ENGINE_2
 120         PHP_FE(http_build_query, NULL)
 121 #endif
 122         PHP_FE(ob_etaghandler, NULL)
 123
 124         EMPTY_FUNCTION_ENTRY
 125 };
 126 /* }}} */
 127
 128 /* {{{ http_module_entry */
 129 zend_module_entry http_module_entry = {
 130 #if ZEND_MODULE_API_NO >= 20010901
 131         STANDARD_MODULE_HEADER,
 132 #endif
 133         "http",
 134         http_functions,
 135         PHP_MINIT(http),
 136         PHP_MSHUTDOWN(http),
 137         PHP_RINIT(http),
 138         PHP_RSHUTDOWN(http),
 139         PHP_MINFO(http),
 140 #if ZEND_MODULE_API_NO >= 20010901
 141         HTTP_PEXT_VERSION,
 142 #endif
 143         STANDARD_MODULE_PROPERTIES
 144 };
 145 /* }}} */
 146
 147 int http_module_number;
 148
 149 /* {{{ http_globals */
 150 static void http_globals_init_once(zend_http_globals *G)
 151 {
 152         memset(G, 0, sizeof(zend_http_globals));
 153 }
 154
 155 static inline void http_globals_init(zend_http_globals *G)
 156 {
 157         G->send.buffer_size = HTTP_SENDBUF_SIZE;
 158         zend_hash_init(&G->request.methods.custom, 0, NULL, ZVAL_PTR_DTOR, 0);
 159 #ifdef HTTP_HAVE_CURL
 160         zend_llist_init(&G->request.copies.strings, sizeof(char *), http_request_data_free_string, 0);
 161         zend_llist_init(&G->request.copies.slists, sizeof(struct curl_slist *), http_request_data_free_slist, 0);
 162         zend_llist_init(&G->request.copies.contexts, sizeof(http_request_callback_ctx *), http_request_data_free_context, 0);
 163         zend_llist_init(&G->request.copies.convs, sizeof(http_request_conv *), http_request_data_free_conv, 0);
 164 #endif
 165 }
 166
 167 static inline void http_globals_free(zend_http_globals *G)
 168 {
 169         STR_SET(G->send.content_type, NULL);
 170         STR_SET(G->send.unquoted_etag, NULL);
 171         zend_hash_destroy(&G->request.methods.custom);
 172 #ifdef HTTP_HAVE_CURL
 173         zend_llist_clean(&G->request.copies.strings);
 174         zend_llist_clean(&G->request.copies.slists);
 175         zend_llist_clean(&G->request.copies.contexts);
 176         zend_llist_clean(&G->request.copies.convs);
 177 #endif
 178 }
 179 /* }}} */
 180
 181 /* {{{ static inline void http_check_allowed_methods(char *, int) */
 182 #define http_check_allowed_methods(m, l) _http_check_allowed_methods((m), (l) TSRMLS_CC)
 183 static inline void _http_check_allowed_methods(char *methods, int length TSRMLS_DC)
 184 {
 185         if (length && SG(request_info).request_method) {
 186                 if (SUCCESS != http_check_method_ex(SG(request_info).request_method, methods)) {
 187                         char *header = emalloc(length + sizeof("Allow: "));
 188                         sprintf(header, "Allow: %s", methods);
 189                         http_exit(405, header);
 190                 }
 191         }
 192 }
 193 /* }}} */
 194
 195 /* {{{ PHP_INI */
 196 PHP_INI_MH(http_update_allowed_methods)
 197 {
 198         http_check_allowed_methods(new_value, new_value_length);
 199         return OnUpdateString(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC);
 200 }
 201
 202 PHP_INI_DISP(http_etag_mode_displayer)
 203 {
 204         long value;
 205
 206         if (type == ZEND_INI_DISPLAY_ORIG && ini_entry->modified) {
 207                 value = (ini_entry->orig_value) ? atoi(ini_entry->orig_value) : HTTP_ETAG_MD5;
 208         } else if (ini_entry->value) {
 209                 value = (ini_entry->value[0]) ? atoi(ini_entry->value) : HTTP_ETAG_MD5;
 210         } else {
 211                 value = HTTP_ETAG_MD5;
 212         }
 213
 214         switch (value)
 215         {
 216                 case HTTP_ETAG_SHA1:
 217                         ZEND_WRITE("HTTP_ETAG_SHA1", lenof("HTTP_ETAG_SHA1"));
 218                 break;
 219
 220                 case HTTP_ETAG_MD5:
 221 #ifndef HTTP_HAVE_MHASH
 222                 default:
 223 #endif
 224                         ZEND_WRITE("HTTP_ETAG_MD5", lenof("HTTP_ETAG_MD5"));
 225                 break;
 226
 227 #ifdef HTTP_HAVE_MHASH
 228                 default:
 229                 {
 230                         const char *hash_name = mhash_get_hash_name_static(value);
 231
 232                         if (!hash_name) {
 233                                 ZEND_WRITE("HTTP_ETAG_MD5", lenof("HTTP_ETAG_MD5"));
 234                         } else {
 235                                 ZEND_WRITE("HTTP_ETAG_MHASH|MHASH_", lenof("HTTP_ETAG_MHASH|MHASH_"));
 236                                 ZEND_WRITE(hash_name, strlen(hash_name));
 237                         }
 238                 }
 239                 break;
 240 #endif
 241         }
 242 }
 243
 244 #ifndef ZEND_ENGINE_2
 245 #       define OnUpdateLong OnUpdateInt
 246 #endif
 247
 248 PHP_INI_BEGIN()
 249         HTTP_PHP_INI_ENTRY("http.allowed_methods", "", PHP_INI_ALL, http_update_allowed_methods, request.methods.allowed)
 250         HTTP_PHP_INI_ENTRY("http.cache_log", "", PHP_INI_ALL, OnUpdateString, log.cache)
 251         HTTP_PHP_INI_ENTRY("http.redirect_log", "", PHP_INI_ALL, OnUpdateString, log.redirect)
 252         HTTP_PHP_INI_ENTRY("http.allowed_methods_log", "", PHP_INI_ALL, OnUpdateString, log.allowed_methods)
 253         HTTP_PHP_INI_ENTRY("http.composite_log", "", PHP_INI_ALL, OnUpdateString, log.composite)
 254 #ifdef ZEND_ENGINE_2
 255         HTTP_PHP_INI_ENTRY("http.only_exceptions", "0", PHP_INI_ALL, OnUpdateBool, only_exceptions)
 256 #endif
 257         HTTP_PHP_INI_ENTRY_EX("http.etag_mode", "-2", PHP_INI_ALL, OnUpdateLong, http_etag_mode_displayer, etag.mode)
 258 PHP_INI_END()
 259 /* }}} */
 260
 261 /* {{{ SSL */
 262 #ifdef HTTP_NEED_SSL
 263
 264 static MUTEX_T *http_ssl_mutex = NULL;
 265
 266 static void http_ssl_lock(int mode, int n, const char * file, int line)
 267 {
 268         if (mode & CRYPTO_LOCK) {
 269                 tsrm_mutex_lock(http_ssl_mutex[n]);
 270         } else {
 271                 tsrm_mutex_unlock(http_ssl_mutex[n]);
 272         }
 273 }
 274 static unsigned long http_ssl_id(void)
 275 {
 276         return (unsigned long) tsrm_thread_id();
 277 }
 278 static inline void http_ssl_init(void)
 279 {
 280         int i, c = CRYPTO_num_locks();
 281         http_ssl_mutex = malloc(c * sizeof(MUTEX_T));
 282
 283         for (i = 0; i < c; ++i) {
 284                 http_ssl_mutex[i] = tsrm_mutex_alloc();
 285         }
 286
 287         CRYPTO_set_id_callback(http_ssl_id);
 288         CRYPTO_set_locking_callback(http_ssl_lock);
 289 }
 290 static inline void http_ssl_cleanup(void)
 291 {
 292         int i, c = CRYPTO_num_locks();
 293
 294         CRYPTO_set_id_callback(NULL);
 295         CRYPTO_set_locking_callback(NULL);
 296
 297         for (i = 0; i < c; ++i) {
 298                 tsrm_mutex_free(http_ssl_mutex[i]);
 299         }
 300 }
 301 #endif
 302 /* }}} */
 303
 304 /* {{{ PHP_MINIT_FUNCTION */
 305 PHP_MINIT_FUNCTION(http)
 306 {
 307         http_module_number = module_number;
 308
 309         ZEND_INIT_MODULE_GLOBALS(http, http_globals_init_once, NULL)
 310
 311         REGISTER_INI_ENTRIES();
 312
 313         HTTP_LONG_CONSTANT("HTTP_ETAG_MD5", HTTP_ETAG_MD5);
 314         HTTP_LONG_CONSTANT("HTTP_ETAG_SHA1", HTTP_ETAG_SHA1);
 315         HTTP_LONG_CONSTANT("HTTP_ETAG_MHASH", HTTP_ETAG_MHASH);
 316
 317 #ifdef HTTP_HAVE_CURL
 318         if (CURLE_OK == curl_global_init(CURL_GLOBAL_ALL)) {
 319 #       ifdef HTTP_NEED_SSL
 320                 curl_version_info_data *cvid = curl_version_info(CURLVERSION_NOW);
 321                 if (cvid && (cvid->features & CURL_VERSION_SSL)) {
 322                         http_ssl_init();
 323                 }
 324 #       endif
 325         } else {
 326                 return FAILURE;
 327         }
 328 #endif /* HTTP_HAVE_CURL */
 329
 330 #ifdef ZEND_ENGINE_2
 331         http_util_object_init();
 332         http_message_object_init();
 333 #       ifndef WONKY
 334         http_response_object_init();
 335 #       endif
 336 #       ifdef HTTP_HAVE_CURL
 337         http_request_object_init();
 338         http_requestpool_object_init();
 339 #       endif /* HTTP_HAVE_CURL */
 340         http_exception_object_init();
 341 #endif /* ZEND_ENGINE_2 */
 342
 343         return SUCCESS;
 344 }
 345 /* }}} */
 346
 347 /* {{{ PHP_MSHUTDOWN_FUNCTION */
 348 PHP_MSHUTDOWN_FUNCTION(http)
 349 {
 350         UNREGISTER_INI_ENTRIES();
 351 #ifdef HTTP_HAVE_CURL
 352         curl_global_cleanup();
 353 #       ifdef HTTP_NEED_SSL
 354         if (http_ssl_mutex) {
 355                 http_ssl_cleanup();
 356         }
 357 #       endif
 358 #endif
 359         return SUCCESS;
 360 }
 361 /* }}} */
 362
 363 /* {{{ PHP_RINIT_FUNCTION */
 364 PHP_RINIT_FUNCTION(http)
 365 {
 366         char *m;
 367
 368         if (m = INI_STR("http.allowed_methods")) {
 369                 http_check_allowed_methods(m, strlen(m));
 370         }
 371
 372         http_globals_init(HTTP_GLOBALS);
 373         return SUCCESS;
 374 }
 375 /* }}} */
 376
 377 /* {{{ PHP_RSHUTDOWN_FUNCTION */
 378 PHP_RSHUTDOWN_FUNCTION(http)
 379 {
 380         http_globals_free(HTTP_GLOBALS);
 381         return SUCCESS;
 382 }
 383 /* }}} */
 384
 385 /* {{{ PHP_MINFO_FUNCTION */
 386 PHP_MINFO_FUNCTION(http)
 387 {
 388         php_info_print_table_start();
 389         {
 390                 php_info_print_table_row(2, "Extended HTTP support:", "enabled");
 391                 php_info_print_table_row(2, "Extension Version:", HTTP_PEXT_VERSION);
 392 #ifdef HTTP_HAVE_CURL
 393                 php_info_print_table_row(2, "cURL HTTP Requests:", curl_version());
 394 #else
 395                 php_info_print_table_row(2, "cURL HTTP Requests:", "disabled");
 396 #endif
 397 #ifdef HTTP_HAVE_MHASH
 398                 {
 399                         char mhash_info[32];
 400
 401                         snprintf(mhash_info, 32, "libmhash/%d", MHASH_API_VERSION);
 402                         php_info_print_table_row(2, "mhash ETag Generator:", mhash_info);
 403                 }
 404 #else
 405                 php_info_print_table_row(2, "mhash ETag Generator:", "disabled");
 406 #endif
 407 #if defined(HTTP_HAVE_MAGIC) && !defined(WONKY)
 408                 php_info_print_table_row(2, "magic MIME Guessing:", "libmagic/unknown");
 409 #else
 410                 php_info_print_table_row(2, "magic MIME Guessing:", "disabled");
 411 #endif
 412                 php_info_print_table_row(2, "Registered Classes:",
 413 #ifndef ZEND_ENGINE_2
 414                         "none"
 415 #else
 416                         "HttpUtil, "
 417                         "HttpMessage, "
 418 #       ifdef HTTP_HAVE_CURL
 419                         "HttpRequest, "
 420                         "HttpRequestPool, "
 421 #       endif
 422 #       ifndef WONKY
 423                         "HttpResponse"
 424 #       endif
 425 #endif
 426                 );
 427         }
 428         php_info_print_table_end();
 429
 430         php_info_print_table_start();
 431         {
 432                 unsigned i;
 433                 zval **custom_method;
 434                 phpstr *known_request_methods = phpstr_new();
 435                 phpstr *custom_request_methods = phpstr_new();
 436
 437                 for (i = HTTP_NO_REQUEST_METHOD+1; i < HTTP_MAX_REQUEST_METHOD; ++i) {
 438                         phpstr_appendl(known_request_methods, http_request_method_name(i));
 439                         phpstr_appends(known_request_methods, ", ");
 440                 }
 441                 FOREACH_HASH_VAL(&HTTP_G(request).methods.custom, custom_method) {
 442                         phpstr_append(custom_request_methods, Z_STRVAL_PP(custom_method), Z_STRLEN_PP(custom_method));
 443                         phpstr_appends(custom_request_methods, ", ");
 444                 }
 445
 446                 phpstr_append(known_request_methods, PHPSTR_VAL(custom_request_methods), PHPSTR_LEN(custom_request_methods));
 447                 phpstr_fix(known_request_methods);
 448                 phpstr_fix(custom_request_methods);
 449
 450                 php_info_print_table_row(2, "Known Request Methods:", PHPSTR_VAL(known_request_methods));
 451                 php_info_print_table_row(2, "Custom Request Methods:",
 452                         PHPSTR_LEN(custom_request_methods) ? PHPSTR_VAL(custom_request_methods) : "none registered");
 453
 454                 phpstr_free(&known_request_methods);
 455                 phpstr_free(&custom_request_methods);
 456         }
 457         php_info_print_table_end();
 458
 459         DISPLAY_INI_ENTRIES();
 460 }
 461 /* }}} */
 462
 463 /*
 464  * Local variables:
 465  * tab-width: 4
 466  * c-basic-offset: 4
 467  * End:
 468  * vim600: noet sw=4 ts=4 fdm=marker
 469  * vim<600: noet sw=4 ts=4
 470  */
 471