git.m6w6.name Git - m6w6/ext-http/blob - http_message_api.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 #include "php.h"
  22
  23 #include "php_http.h"
  24 #include "php_http_std_defs.h"
  25 #include "php_http_api.h"
  26 #include "php_http_message_api.h"
  27 #include "php_http_headers_api.h"
  28 #include "php_http_send_api.h"
  29 #include "php_http_request_api.h"
  30 #include "php_http_url_api.h"
  31
  32 #include "phpstr/phpstr.h"
  33
  34 ZEND_EXTERN_MODULE_GLOBALS(http);
  35
  36 #define http_message_info_callback _http_message_info_callback
  37 static void _http_message_info_callback(http_message **message, HashTable **headers, http_info *info TSRMLS_DC)
  38 {
  39         http_message *old = *message;
  40
  41         /* advance message */
  42         if (old->type || zend_hash_num_elements(&old->hdrs) || PHPSTR_LEN(old)) {
  43                 (*message) = http_message_new();
  44                 (*message)->parent = old;
  45                 (*headers) = &((*message)->hdrs);
  46         }
  47
  48         (*message)->http.version = info->http.version;
  49
  50         switch (info->type)
  51         {
  52                 case IS_HTTP_REQUEST:
  53                         (*message)->type = HTTP_MSG_REQUEST;
  54                         HTTP_INFO(*message).request.URI = estrdup(HTTP_INFO(info).request.URI);
  55                         HTTP_INFO(*message).request.method = estrdup(HTTP_INFO(info).request.method);
  56                 break;
  57
  58                 case IS_HTTP_RESPONSE:
  59                         (*message)->type = HTTP_MSG_RESPONSE;
  60                         HTTP_INFO(*message).response.code = HTTP_INFO(info).response.code;
  61                         HTTP_INFO(*message).response.status = estrdup(HTTP_INFO(info).response.status);
  62                 break;
  63         }
  64 }
  65
  66 #define http_message_init_type _http_message_init_type
  67 static inline void _http_message_init_type(http_message *message, http_message_type type)
  68 {
  69         message->http.version = .0;
  70
  71         switch (message->type = type)
  72         {
  73                 case HTTP_MSG_RESPONSE:
  74                         message->http.info.response.code = 0;
  75                         message->http.info.response.status = NULL;
  76                 break;
  77
  78                 case HTTP_MSG_REQUEST:
  79                         message->http.info.request.method = NULL;
  80                         message->http.info.request.URI = NULL;
  81                 break;
  82
  83                 case HTTP_MSG_NONE:
  84                 default:
  85                 break;
  86         }
  87 }
  88
  89 PHP_HTTP_API http_message *_http_message_init_ex(http_message *message, http_message_type type)
  90 {
  91         if (!message) {
  92                 message = ecalloc(1, sizeof(http_message));
  93         }
  94
  95         http_message_init_type(message, type);
  96         message->parent = NULL;
  97         phpstr_init(&message->body);
  98         zend_hash_init(&message->hdrs, 0, NULL, ZVAL_PTR_DTOR, 0);
  99
 100         return message;
 101 }
 102
 103
 104 PHP_HTTP_API void _http_message_set_type(http_message *message, http_message_type type)
 105 {
 106         /* just act if different */
 107         if (type != message->type) {
 108
 109                 /* free request info */
 110                 switch (message->type)
 111                 {
 112                         case HTTP_MSG_REQUEST:
 113                                 STR_FREE(message->http.info.request.method);
 114                                 STR_FREE(message->http.info.request.URI);
 115                         break;
 116
 117                         case HTTP_MSG_RESPONSE:
 118                                 STR_FREE(message->http.info.response.status);
 119                         break;
 120
 121                         default:
 122                         break;
 123                 }
 124
 125                 /* init */
 126                 http_message_init_type(message, type);
 127         }
 128 }
 129
 130 PHP_HTTP_API http_message *_http_message_parse_ex(http_message *msg, const char *message, size_t message_length TSRMLS_DC)
 131 {
 132         const char *body = NULL;
 133         zend_bool free_msg = msg ? 0 : 1;
 134
 135         if ((!message) || (message_length < HTTP_MSG_MIN_SIZE)) {
 136                 return NULL;
 137         }
 138
 139         msg = http_message_init(msg);
 140
 141         if (SUCCESS != http_parse_headers_cb(message, &msg->hdrs, 1, (http_info_callback) http_message_info_callback, (void **) &msg)) {
 142                 if (free_msg) {
 143                         http_message_free(&msg);
 144                 }
 145                 return NULL;
 146         }
 147
 148         /* header parsing stops at (CR)LF (CR)LF */
 149         if (body = http_locate_body(message)) {
 150                 zval *c;
 151                 const char *continue_at = NULL;
 152
 153                 /* message has chunked transfer encoding */
 154                 if ((c = http_message_header(msg, "Transfer-Encoding")) && (!strcasecmp("chunked", Z_STRVAL_P(c)))) {
 155                         char *decoded;
 156                         size_t decoded_len;
 157
 158                         /* decode and replace Transfer-Encoding with Content-Length header */
 159                         if (continue_at = http_chunked_decode(body, message + message_length - body, &decoded, &decoded_len)) {
 160                                 phpstr_from_string_ex(PHPSTR(msg), decoded, decoded_len);
 161                                 efree(decoded);
 162                                 {
 163                                         zval *len;
 164                                         char *tmp;
 165
 166                                         spprintf(&tmp, 0, "%lu", (ulong) decoded_len);
 167                                         MAKE_STD_ZVAL(len);
 168                                         ZVAL_STRING(len, tmp, 0);
 169
 170                                         zend_hash_del(&msg->hdrs, "Transfer-Encoding", sizeof("Transfer-Encoding"));
 171                                         zend_hash_add(&msg->hdrs, "Content-Length", sizeof("Content-Length"), (void *) &len, sizeof(zval *), NULL);
 172                                 }
 173                         }
 174                 } else
 175
 176                 /* message has content-length header */
 177                 if (c = http_message_header(msg, "Content-Length")) {
 178                         long len = atol(Z_STRVAL_P(c));
 179                         phpstr_from_string_ex(PHPSTR(msg), body, len);
 180                         continue_at = body + len;
 181                 } else
 182
 183                 /* message has content-range header */
 184                 if (c = http_message_header(msg, "Content-Range")) {
 185                         ulong start = 0, end = 0;
 186
 187                         sscanf(Z_STRVAL_P(c), "bytes=%lu-%lu", &start, &end);
 188                         if (end > start) {
 189                                 phpstr_from_string_ex(PHPSTR(msg), body, (size_t) (end - start));
 190                                 continue_at = body + (end - start);
 191                         }
 192                 } else
 193
 194                 /* no headers that indicate content length */
 195                 if (HTTP_MSG_TYPE(RESPONSE, msg)) {
 196                         phpstr_from_string_ex(PHPSTR(msg), body, message + message_length - body);
 197                 } else {
 198                         continue_at = body;
 199                 }
 200
 201                 /* check for following messages */
 202                 if (continue_at) {
 203                         while (isspace(*continue_at)) ++continue_at;
 204                         if (continue_at < (message + message_length)) {
 205                                 http_message *next = NULL, *most = NULL;
 206
 207                                 /* set current message to parent of most parent following messages and return deepest */
 208                                 if (most = next = http_message_parse(continue_at, message + message_length - continue_at)) {
 209                                         while (most->parent) most = most->parent;
 210                                         most->parent = msg;
 211                                         msg = next;
 212                                 }
 213                         }
 214                 }
 215         }
 216
 217         return msg;
 218 }
 219
 220 PHP_HTTP_API void _http_message_tostring(http_message *msg, char **string, size_t *length)
 221 {
 222         phpstr str;
 223         char *key, *data;
 224         ulong idx;
 225         zval **header;
 226
 227         phpstr_init_ex(&str, 4096, 0);
 228
 229         switch (msg->type)
 230         {
 231                 case HTTP_MSG_REQUEST:
 232                         phpstr_appendf(&str, "%s %s HTTP/%1.1f" HTTP_CRLF,
 233                                 msg->http.info.request.method,
 234                                 msg->http.info.request.URI,
 235                                 msg->http.version);
 236                 break;
 237
 238                 case HTTP_MSG_RESPONSE:
 239                         phpstr_appendf(&str, "HTTP/%1.1f %d%s%s" HTTP_CRLF,
 240                                 msg->http.version,
 241                                 msg->http.info.response.code,
 242                                 *msg->http.info.response.status ? " ":"",
 243                                 msg->http.info.response.status);
 244                 break;
 245
 246                 case HTTP_MSG_NONE:
 247                 default:
 248                 break;
 249         }
 250
 251         FOREACH_HASH_KEYVAL(&msg->hdrs, key, idx, header) {
 252                 if (key) {
 253                         zval **single_header;
 254
 255                         switch (Z_TYPE_PP(header))
 256                         {
 257                                 case IS_STRING:
 258                                         phpstr_appendf(&str, "%s: %s" HTTP_CRLF, key, Z_STRVAL_PP(header));
 259                                 break;
 260
 261                                 case IS_ARRAY:
 262                                         FOREACH_VAL(*header, single_header) {
 263                                                 phpstr_appendf(&str, "%s: %s" HTTP_CRLF, key, Z_STRVAL_PP(single_header));
 264                                         }
 265                                 break;
 266                         }
 267
 268                         key = NULL;
 269                 }
 270         }
 271
 272         if (PHPSTR_LEN(msg)) {
 273                 phpstr_appends(&str, HTTP_CRLF);
 274                 phpstr_append(&str, PHPSTR_VAL(msg), PHPSTR_LEN(msg));
 275                 phpstr_appends(&str, HTTP_CRLF);
 276         }
 277
 278         data = phpstr_data(&str, string, length);
 279         if (!string) {
 280                 efree(data);
 281         }
 282
 283         phpstr_dtor(&str);
 284 }
 285
 286 PHP_HTTP_API void _http_message_serialize(http_message *message, char **string, size_t *length)
 287 {
 288         char *buf;
 289         size_t len;
 290         phpstr str;
 291
 292         phpstr_init(&str);
 293
 294         do {
 295                 http_message_tostring(message, &buf, &len);
 296                 phpstr_prepend(&str, buf, len);
 297                 efree(buf);
 298         } while (message = message->parent);
 299
 300         buf = phpstr_data(&str, string, length);
 301         if (!string) {
 302                 efree(buf);
 303         }
 304
 305         phpstr_dtor(&str);
 306 }
 307
 308 PHP_HTTP_API void _http_message_tostruct_recursive(http_message *msg, zval *obj TSRMLS_DC)
 309 {
 310         zval strct;
 311         zval *headers;
 312
 313         INIT_ZARR(strct, HASH_OF(obj));
 314
 315         add_assoc_long(&strct, "type", msg->type);
 316         add_assoc_double(&strct, "httpVersion", msg->http.version);
 317         switch (msg->type)
 318         {
 319                 case HTTP_MSG_RESPONSE:
 320                         add_assoc_long(&strct, "responseCode", msg->http.info.response.code);
 321                         add_assoc_string(&strct, "responseStatus", msg->http.info.response.status, 1);
 322                 break;
 323
 324                 case HTTP_MSG_REQUEST:
 325                         add_assoc_string(&strct, "requestMethod", msg->http.info.request.method, 1);
 326                         add_assoc_string(&strct, "requestUri", msg->http.info.request.URI, 1);
 327                 break;
 328         }
 329
 330         MAKE_STD_ZVAL(headers);
 331         array_init(headers);
 332         zend_hash_copy(Z_ARRVAL_P(headers), &msg->hdrs, (copy_ctor_func_t) zval_add_ref, NULL, sizeof(zval *));
 333         add_assoc_zval(&strct, "headers", headers);
 334
 335         add_assoc_stringl(&strct, "body", PHPSTR_VAL(msg), PHPSTR_LEN(msg), 1);
 336
 337         if (msg->parent) {
 338                 zval *parent;
 339
 340                 MAKE_STD_ZVAL(parent);
 341                 if (Z_TYPE_P(obj) == IS_ARRAY) {
 342                         array_init(parent);
 343                 } else {
 344                         object_init(parent);
 345                 }
 346                 add_assoc_zval(&strct, "parentMessage", parent);
 347                 http_message_tostruct_recursive(msg->parent, parent);
 348                 zval_ptr_dtor(&parent);
 349         } else {
 350                 add_assoc_null(&strct, "parentMessage");
 351         }
 352 }
 353
 354 PHP_HTTP_API STATUS _http_message_send(http_message *message TSRMLS_DC)
 355 {
 356         STATUS rs = FAILURE;
 357
 358         switch (message->type)
 359         {
 360                 case HTTP_MSG_RESPONSE:
 361                 {
 362                         char *key;
 363                         ulong idx;
 364                         zval **val;
 365
 366                         FOREACH_HASH_KEYVAL(&message->hdrs, key, idx, val) {
 367                                 if (key) {
 368                                         if (Z_TYPE_PP(val) == IS_ARRAY) {
 369                                                 zend_bool first = 1;
 370                                                 zval **data;
 371
 372                                                 FOREACH_VAL(*val, data) {
 373                                                         http_send_header_ex(key, strlen(key), Z_STRVAL_PP(data), Z_STRLEN_PP(data), first, NULL);
 374                                                         first = 0;
 375                                                 }
 376                                         } else {
 377                                                 http_send_header_ex(key, strlen(key), Z_STRVAL_PP(val), Z_STRLEN_PP(val), 1, NULL);
 378                                         }
 379                                         key = NULL;
 380                                 }
 381                         }
 382                         rs =    SUCCESS == http_send_status(message->http.info.response.code) &&
 383                                         SUCCESS == http_send_data(PHPSTR_VAL(message), PHPSTR_LEN(message)) ?
 384                                         SUCCESS : FAILURE;
 385                 }
 386                 break;
 387
 388                 case HTTP_MSG_REQUEST:
 389                 {
 390 #ifdef HTTP_HAVE_CURL
 391                         char *uri = NULL;
 392                         zval **zhost, options, headers;
 393
 394                         INIT_PZVAL(&options);
 395                         INIT_PZVAL(&headers);
 396                         array_init(&options);
 397                         array_init(&headers);
 398                         zend_hash_copy(Z_ARRVAL(headers), &message->hdrs, (copy_ctor_func_t) zval_add_ref, NULL, sizeof(zval *));
 399                         add_assoc_zval(&options, "headers", &headers);
 400
 401                         /* check host header */
 402                         if (SUCCESS == zend_hash_find(&message->hdrs, "Host", sizeof("Host"), (void **) &zhost)) {
 403                                 char *colon = NULL, *host = NULL;
 404                                 size_t host_len = 0;
 405                                 int port = 0;
 406
 407                                 /* check for port */
 408                                 if (colon = strchr(Z_STRVAL_PP(zhost), ':')) {
 409                                         port = atoi(colon + 1);
 410                                         host = estrndup(Z_STRVAL_PP(zhost), host_len = (Z_STRVAL_PP(zhost) - colon - 1));
 411                                 } else {
 412                                         host = estrndup(Z_STRVAL_PP(zhost), host_len = Z_STRLEN_PP(zhost));
 413                                 }
 414                                 uri = http_absolute_uri_ex(
 415                                         message->http.info.request.URI, strlen(message->http.info.request.URI),
 416                                         NULL, 0, host, host_len, port);
 417                                 efree(host);
 418                         } else {
 419                                 uri = http_absolute_uri(message->http.info.request.URI);
 420                         }
 421
 422                         if (!strcasecmp("POST", message->http.info.request.method)) {
 423                                 http_request_body body = {HTTP_REQUEST_BODY_CSTRING, PHPSTR_VAL(message), PHPSTR_LEN(message)};
 424                                 rs = http_post(uri, &body, Z_ARRVAL(options), NULL, NULL);
 425                         } else
 426                         if (!strcasecmp("GET", message->http.info.request.method)) {
 427                                 rs = http_get(uri, Z_ARRVAL(options), NULL, NULL);
 428                         } else
 429                         if (!strcasecmp("HEAD", message->http.info.request.method)) {
 430                                 rs = http_head(uri, Z_ARRVAL(options), NULL, NULL);
 431                         } else {
 432                                 http_error_ex(HE_WARNING, HTTP_E_REQUEST_METHOD,
 433                                         "Cannot send HttpMessage. Request method %s not supported",
 434                                         message->http.info.request.method);
 435                         }
 436
 437                         efree(uri);
 438 #else
 439                         http_error(HE_WARNING, HTTP_E_RUNTIME, "HTTP requests not supported - ext/http was not linked against libcurl.");
 440 #endif
 441                 }
 442                 break;
 443
 444                 case HTTP_MSG_NONE:
 445                 default:
 446                         http_error(HE_WARNING, HTTP_E_MESSAGE_TYPE, "HttpMessage is neither of type HTTP_MSG_REQUEST nor HTTP_MSG_RESPONSE");
 447                 break;
 448         }
 449
 450         return rs;
 451 }
 452
 453 PHP_HTTP_API http_message *_http_message_dup(http_message *msg TSRMLS_DC)
 454 {
 455         /*
 456          * TODO: unroll
 457          */
 458         http_message *new;
 459         char *serialized_data;
 460         size_t serialized_length;
 461
 462         http_message_serialize(msg, &serialized_data, &serialized_length);
 463         new = http_message_parse(serialized_data, serialized_length);
 464         efree(serialized_data);
 465         return new;
 466 }
 467
 468 PHP_HTTP_API void _http_message_dtor(http_message *message)
 469 {
 470         if (message) {
 471                 zend_hash_destroy(&message->hdrs);
 472                 phpstr_dtor(PHPSTR(message));
 473
 474                 switch (message->type)
 475                 {
 476                         case HTTP_MSG_REQUEST:
 477                                 STR_SET(message->http.info.request.method, NULL);
 478                                 STR_SET(message->http.info.request.URI, NULL);
 479                         break;
 480
 481                         case HTTP_MSG_RESPONSE:
 482                                 STR_SET(message->http.info.response.status, NULL);
 483                         break;
 484
 485                         default:
 486                         break;
 487                 }
 488         }
 489 }
 490
 491 PHP_HTTP_API void _http_message_free(http_message **message)
 492 {
 493         if (*message) {
 494                 if ((*message)->parent) {
 495                         http_message_free(&(*message)->parent);
 496                 }
 497                 http_message_dtor(*message);
 498                 efree(*message);
 499                 *message = NULL;
 500         }
 501 }
 502
 503 /*
 504  * Local variables:
 505  * tab-width: 4
 506  * c-basic-offset: 4
 507  * End:
 508  * vim600: noet sw=4 ts=4 fdm=marker
 509  * vim<600: noet sw=4 ts=4
 510  */
 511