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         char *body = NULL, *cr, *lf;
 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, &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 = strstr(message, HTTP_CRLF HTTP_CRLF)) {
 150                 zval *c;
 151                 const char *continue_at = NULL;
 152
 153                 body += lenof(HTTP_CRLF HTTP_CRLF);
 154                 /* message has content-length header */
 155                 if (c = http_message_header(msg, "Content-Length")) {
 156                         long len = atol(Z_STRVAL_P(c));
 157                         phpstr_from_string_ex(PHPSTR(msg), body, len);
 158                         continue_at = body + len;
 159                 } else
 160
 161                 /* message has chunked transfer encoding */
 162                 if (c = http_message_header(msg, "Transfer-Encoding")) {
 163                         if (!strcasecmp("chunked", Z_STRVAL_P(c))) {
 164                                 char *decoded;
 165                                 size_t decoded_len;
 166
 167                                 /* decode and replace Transfer-Encoding with Content-Length header */
 168                                 if (continue_at = http_chunked_decode(body, message + message_length - body, &decoded, &decoded_len)) {
 169                                         phpstr_from_string_ex(PHPSTR(msg), decoded, decoded_len);
 170                                         efree(decoded);
 171                                         {
 172                                                 zval *len;
 173                                                 char *tmp;
 174
 175                                                 spprintf(&tmp, 0, "%lu", (ulong) decoded_len);
 176                                                 MAKE_STD_ZVAL(len);
 177                                                 ZVAL_STRING(len, tmp, 0);
 178
 179                                                 zend_hash_del(&msg->hdrs, "Transfer-Encoding", sizeof("Transfer-Encoding"));
 180                                                 zend_hash_add(&msg->hdrs, "Content-Length", sizeof("Content-Length"), (void *) &len, sizeof(zval *), NULL);
 181                                         }
 182                                 }
 183                         }
 184                 } else
 185
 186                 /* message has content-range header */
 187                 if (c = http_message_header(msg, "Content-Range")) {
 188                         ulong start = 0, end = 0;
 189
 190                         sscanf(Z_STRVAL_P(c), "bytes=%lu-%lu", &start, &end);
 191                         if (end > start) {
 192                                 phpstr_from_string_ex(PHPSTR(msg), body, (size_t) (end - start));
 193                                 continue_at = body + (end - start);
 194                         }
 195                 } else
 196
 197                 /* no headers that indicate content length */
 198                 if (HTTP_MSG_TYPE(RESPONSE, msg)) {
 199                         phpstr_from_string_ex(PHPSTR(msg), body, message + message_length - body);
 200                 } else {
 201                         continue_at = body;
 202                 }
 203
 204                 /* check for following messages */
 205                 if (continue_at) {
 206                         while (isspace(*continue_at)) ++continue_at;
 207                         if (continue_at < (message + message_length)) {
 208                                 http_message *next = NULL, *most = NULL;
 209
 210                                 /* set current message to parent of most parent following messages and return deepest */
 211                                 if (most = next = http_message_parse(continue_at, message + message_length - continue_at)) {
 212                                         while (most->parent) most = most->parent;
 213                                         most->parent = msg;
 214                                         msg = next;
 215                                 }
 216                         }
 217                 }
 218         }
 219
 220         return msg;
 221 }
 222
 223 PHP_HTTP_API void _http_message_tostring(http_message *msg, char **string, size_t *length)
 224 {
 225         phpstr str;
 226         char *key, *data;
 227         ulong idx;
 228         zval **header;
 229
 230         phpstr_init_ex(&str, 4096, 0);
 231
 232         switch (msg->type)
 233         {
 234                 case HTTP_MSG_REQUEST:
 235                         phpstr_appendf(&str, "%s %s HTTP/%1.1f" HTTP_CRLF,
 236                                 msg->http.info.request.method,
 237                                 msg->http.info.request.URI,
 238                                 msg->http.version);
 239                 break;
 240
 241                 case HTTP_MSG_RESPONSE:
 242                         phpstr_appendf(&str, "HTTP/%1.1f %d%s%s" HTTP_CRLF,
 243                                 msg->http.version,
 244                                 msg->http.info.response.code,
 245                                 *msg->http.info.response.status ? " ":"",
 246                                 msg->http.info.response.status);
 247                 break;
 248
 249                 case HTTP_MSG_NONE:
 250                 default:
 251                 break;
 252         }
 253
 254         FOREACH_HASH_KEYVAL(&msg->hdrs, key, idx, header) {
 255                 if (key) {
 256                         zval **single_header;
 257
 258                         switch (Z_TYPE_PP(header))
 259                         {
 260                                 case IS_STRING:
 261                                         phpstr_appendf(&str, "%s: %s" HTTP_CRLF, key, Z_STRVAL_PP(header));
 262                                 break;
 263
 264                                 case IS_ARRAY:
 265                                         FOREACH_VAL(*header, single_header) {
 266                                                 phpstr_appendf(&str, "%s: %s" HTTP_CRLF, key, Z_STRVAL_PP(single_header));
 267                                         }
 268                                 break;
 269                         }
 270
 271                         key = NULL;
 272                 }
 273         }
 274
 275         if (PHPSTR_LEN(msg)) {
 276                 phpstr_appends(&str, HTTP_CRLF);
 277                 phpstr_append(&str, PHPSTR_VAL(msg), PHPSTR_LEN(msg));
 278                 phpstr_appends(&str, HTTP_CRLF);
 279         }
 280
 281         data = phpstr_data(&str, string, length);
 282         if (!string) {
 283                 efree(data);
 284         }
 285
 286         phpstr_dtor(&str);
 287 }
 288
 289 PHP_HTTP_API void _http_message_serialize(http_message *message, char **string, size_t *length)
 290 {
 291         char *buf;
 292         size_t len;
 293         phpstr str;
 294
 295         phpstr_init(&str);
 296
 297         do {
 298                 http_message_tostring(message, &buf, &len);
 299                 phpstr_prepend(&str, buf, len);
 300                 efree(buf);
 301         } while (message = message->parent);
 302
 303         buf = phpstr_data(&str, string, length);
 304         if (!string) {
 305                 efree(buf);
 306         }
 307
 308         phpstr_dtor(&str);
 309 }
 310
 311 PHP_HTTP_API void _http_message_tostruct_recursive(http_message *msg, zval *obj TSRMLS_DC)
 312 {
 313         zval strct;
 314         zval *headers;
 315
 316         Z_TYPE(strct) = IS_ARRAY;
 317         Z_ARRVAL(strct) = HASH_OF(obj);
 318
 319         add_assoc_long(&strct, "type", msg->type);
 320         add_assoc_double(&strct, "httpVersion", msg->http.version);
 321         switch (msg->type)
 322         {
 323                 case HTTP_MSG_RESPONSE:
 324                         add_assoc_long(&strct, "responseCode", msg->http.info.response.code);
 325                         add_assoc_string(&strct, "responseStatus", msg->http.info.response.status, 1);
 326                 break;
 327
 328                 case HTTP_MSG_REQUEST:
 329                         add_assoc_string(&strct, "requestMethod", msg->http.info.request.method, 1);
 330                         add_assoc_string(&strct, "requestUri", msg->http.info.request.URI, 1);
 331                 break;
 332         }
 333
 334         MAKE_STD_ZVAL(headers);
 335         array_init(headers);
 336         zend_hash_copy(Z_ARRVAL_P(headers), &msg->hdrs, (copy_ctor_func_t) zval_add_ref, NULL, sizeof(zval *));
 337         add_assoc_zval(&strct, "headers", headers);
 338         zval_ptr_dtor(&headers);
 339
 340         add_assoc_stringl(&strct, "body", PHPSTR_VAL(msg), PHPSTR_LEN(msg), 1);
 341
 342         if (msg->parent) {
 343                 zval *parent;
 344
 345                 MAKE_STD_ZVAL(parent);
 346                 if (Z_TYPE_P(obj) == IS_ARRAY) {
 347                         array_init(parent);
 348                 } else {
 349                         object_init(parent);
 350                 }
 351                 add_assoc_zval(&strct, "parentMessage", parent);
 352                 http_message_tostruct_recursive(msg->parent, parent);
 353                 zval_ptr_dtor(&parent);
 354         } else {
 355                 add_assoc_null(&strct, "parentMessage");
 356         }
 357         http_message_dtor(msg);
 358         efree(msg);
 359 }
 360
 361 PHP_HTTP_API STATUS _http_message_send(http_message *message TSRMLS_DC)
 362 {
 363         STATUS rs = FAILURE;
 364
 365         switch (message->type)
 366         {
 367                 case HTTP_MSG_RESPONSE:
 368                 {
 369                         char *key;
 370                         ulong idx;
 371                         zval **val;
 372
 373                         FOREACH_HASH_KEYVAL(&message->hdrs, key, idx, val) {
 374                                 if (key) {
 375                                         if (Z_TYPE_PP(val) == IS_ARRAY) {
 376                                                 zend_bool first = 1;
 377                                                 zval **data;
 378
 379                                                 FOREACH_VAL(*val, data) {
 380                                                         http_send_header_ex(key, strlen(key), Z_STRVAL_PP(data), Z_STRLEN_PP(data), first, NULL);
 381                                                         first = 0;
 382                                                 }
 383                                         } else {
 384                                                 http_send_header_ex(key, strlen(key), Z_STRVAL_PP(val), Z_STRLEN_PP(val), 1, NULL);
 385                                         }
 386                                         key = NULL;
 387                                 }
 388                         }
 389                         rs =    SUCCESS == http_send_status(message->http.info.response.code) &&
 390                                         SUCCESS == http_send_data(PHPSTR_VAL(message), PHPSTR_LEN(message)) ?
 391                                         SUCCESS : FAILURE;
 392                 }
 393                 break;
 394
 395                 case HTTP_MSG_REQUEST:
 396                 {
 397 #ifdef HTTP_HAVE_CURL
 398                         char *uri = NULL;
 399                         zval **zhost, options, headers;
 400
 401                         array_init(&options);
 402                         array_init(&headers);
 403                         zend_hash_copy(Z_ARRVAL(headers), &message->hdrs, (copy_ctor_func_t) zval_add_ref, NULL, sizeof(zval *));
 404                         add_assoc_zval(&options, "headers", &headers);
 405
 406                         /* check host header */
 407                         if (SUCCESS == zend_hash_find(&message->hdrs, "Host", sizeof("Host"), (void **) &zhost)) {
 408                                 char *colon = NULL, *host = NULL;
 409                                 size_t host_len = 0;
 410                                 int port = 0;
 411
 412                                 /* check for port */
 413                                 if (colon = strchr(Z_STRVAL_PP(zhost), ':')) {
 414                                         port = atoi(colon + 1);
 415                                         host = estrndup(Z_STRVAL_PP(zhost), host_len = (Z_STRVAL_PP(zhost) - colon - 1));
 416                                 } else {
 417                                         host = estrndup(Z_STRVAL_PP(zhost), host_len = Z_STRLEN_PP(zhost));
 418                                 }
 419                                 uri = http_absolute_uri_ex(
 420                                         message->http.info.request.URI, strlen(message->http.info.request.URI),
 421                                         NULL, 0, host, host_len, port);
 422                                 efree(host);
 423                         } else {
 424                                 uri = http_absolute_uri(message->http.info.request.URI);
 425                         }
 426
 427                         if (!strcasecmp("POST", message->http.info.request.method)) {
 428                                 http_request_body body = {HTTP_REQUEST_BODY_CSTRING, PHPSTR_VAL(message), PHPSTR_LEN(message)};
 429                                 rs = http_post(uri, &body, Z_ARRVAL(options), NULL, NULL);
 430                         } else
 431                         if (!strcasecmp("GET", message->http.info.request.method)) {
 432                                 rs = http_get(uri, Z_ARRVAL(options), NULL, NULL);
 433                         } else
 434                         if (!strcasecmp("HEAD", message->http.info.request.method)) {
 435                                 rs = http_head(uri, Z_ARRVAL(options), NULL, NULL);
 436                         } else {
 437                                 http_error_ex(HE_WARNING, HTTP_E_REQUEST_METHOD,
 438                                         "Cannot send HttpMessage. Request method %s not supported",
 439                                         message->http.info.request.method);
 440                         }
 441
 442                         efree(uri);
 443 #else
 444                         http_error(HE_WARNING, HTTP_E_RUNTIME, "HTTP requests not supported - ext/http was not linked against libcurl.");
 445 #endif
 446                 }
 447                 break;
 448
 449                 case HTTP_MSG_NONE:
 450                 default:
 451                         http_error(HE_WARNING, HTTP_E_MESSAGE_TYPE, "HttpMessage is neither of type HTTP_MSG_REQUEST nor HTTP_MSG_RESPONSE");
 452                 break;
 453         }
 454
 455         return rs;
 456 }
 457
 458 PHP_HTTP_API http_message *_http_message_dup(http_message *msg TSRMLS_DC)
 459 {
 460         /*
 461          * TODO: unroll
 462          */
 463         http_message *new;
 464         char *serialized_data;
 465         size_t serialized_length;
 466
 467         http_message_serialize(msg, &serialized_data, &serialized_length);
 468         new = http_message_parse(serialized_data, serialized_length);
 469         efree(serialized_data);
 470         return new;
 471 }
 472
 473 PHP_HTTP_API void _http_message_dtor(http_message *message)
 474 {
 475         if (message) {
 476                 zend_hash_destroy(&message->hdrs);
 477                 phpstr_dtor(PHPSTR(message));
 478
 479                 switch (message->type)
 480                 {
 481                         case HTTP_MSG_REQUEST:
 482                                 STR_SET(message->http.info.request.method, NULL);
 483                                 STR_SET(message->http.info.request.URI, NULL);
 484                         break;
 485
 486                         case HTTP_MSG_RESPONSE:
 487                                 STR_SET(message->http.info.response.status, NULL);
 488                         break;
 489
 490                         default:
 491                         break;
 492                 }
 493         }
 494 }
 495
 496 PHP_HTTP_API void _http_message_free(http_message **message)
 497 {
 498         if (*message) {
 499                 if ((*message)->parent) {
 500                         http_message_free(&(*message)->parent);
 501                 }
 502                 http_message_dtor(*message);
 503                 efree(*message);
 504                 *message = NULL;
 505         }
 506 }
 507
 508 /*
 509  * Local variables:
 510  * tab-width: 4
 511  * c-basic-offset: 4
 512  * End:
 513  * vim600: noet sw=4 ts=4 fdm=marker
 514  * vim<600: noet sw=4 ts=4
 515  */
 516