- add ob_(deflate|inflate)handler
[m6w6/ext-http] / http_message_api.c
index 76e1d22dbe6a3ba17e3d4ab2467ba9b9eb51f247..5f517010adbd1201b45120d4746a21abe2326f4a 100644 (file)
@@ -1,16 +1,13 @@
 /*
-   +----------------------------------------------------------------------+
-   | PECL :: http                                                         |
-   +----------------------------------------------------------------------+
-   | This source file is subject to version 3.0 of the PHP license, that  |
-   | is bundled with this package in the file LICENSE, and is available   |
-   | through the world-wide-web at http://www.php.net/license/3_0.txt.    |
-   | If you did not receive a copy of the PHP license and are unable to   |
-   | obtain it through the world-wide-web, please send a note to          |
-   | license@php.net so we can mail you a copy immediately.               |
-   +----------------------------------------------------------------------+
-   | Copyright (c) 2004-2005 Michael Wallner <mike@php.net>               |
-   +----------------------------------------------------------------------+
+    +--------------------------------------------------------------------+
+    | PECL :: http                                                       |
+    +--------------------------------------------------------------------+
+    | Redistribution and use in source and binary forms, with or without |
+    | modification, are permitted provided that the conditions mentioned |
+    | in the accompanying LICENSE file are met.                          |
+    +--------------------------------------------------------------------+
+    | Copyright (c) 2004-2005, Michael Wallner <mike@php.net>            |
+    +--------------------------------------------------------------------+
 */
 
 /* $Id$ */
 #      include "config.h"
 #endif
 
-#include "php.h"
+#define HTTP_WANT_CURL
+#define HTTP_WANT_ZLIB
 #include "php_http.h"
-#include "php_http_std_defs.h"
-#include "php_http_message_api.h"
+
+#include "SAPI.h"
+
 #include "php_http_api.h"
+#include "php_http_encoding_api.h"
 #include "php_http_headers_api.h"
+#include "php_http_message_api.h"
+#include "php_http_request_api.h"
+#include "php_http_send_api.h"
+#include "php_http_url_api.h"
 
-#include "phpstr/phpstr.h"
-
-#define http_message_parse_nested(msg, begin, length) _http_message_parse_nested((msg), (begin), (length) TSRMLS_CC)
-static inline http_message *_http_message_parse_nested(http_message *msg, const char *begin, size_t length TSRMLS_DC)
+#define http_message_info_callback _http_message_info_callback
+static void _http_message_info_callback(http_message **message, HashTable **headers, http_info *info TSRMLS_DC)
 {
-       http_message *new;
-
-       while (isspace(*begin)) {
-               ++begin;
-               if (!length--) {
-                       return NULL;
-               }
+       http_message *old = *message;
+       
+       /* advance message */
+       if (old->type || zend_hash_num_elements(&old->hdrs) || PHPSTR_LEN(old)) {
+               (*message) = http_message_new();
+               (*message)->parent = old;
+               (*headers) = &((*message)->hdrs);
        }
+       
+       (*message)->http.version = info->http.version;
+       
+       switch (info->type)
+       {
+               case IS_HTTP_REQUEST:
+                       (*message)->type = HTTP_MSG_REQUEST;
+                       HTTP_INFO(*message).request.URI = estrdup(HTTP_INFO(info).request.URI);
+                       HTTP_INFO(*message).request.method = estrdup(HTTP_INFO(info).request.method);
+               break;
+               
+               case IS_HTTP_RESPONSE:
+                       (*message)->type = HTTP_MSG_RESPONSE;
+                       HTTP_INFO(*message).response.code = HTTP_INFO(info).response.code;
+                       HTTP_INFO(*message).response.status = estrdup(HTTP_INFO(info).response.status);
+               break;
+       }
+}
 
-       if (new = http_message_parse(begin, length)) {
-               new->nested = msg;
-               return new;
+#define http_message_init_type _http_message_init_type
+static inline void _http_message_init_type(http_message *message, http_message_type type)
+{
+       message->http.version = .0;
+       
+       switch (message->type = type)
+       {
+               case HTTP_MSG_RESPONSE:
+                       message->http.info.response.code = 0;
+                       message->http.info.response.status = NULL;
+               break;
+
+               case HTTP_MSG_REQUEST:
+                       message->http.info.request.method = NULL;
+                       message->http.info.request.URI = NULL;
+               break;
+
+               case HTTP_MSG_NONE:
+               default:
+               break;
        }
-       return NULL;
 }
 
-PHP_HTTP_API http_message *_http_message_init_ex(http_message *message, http_message_type type)
+PHP_HTTP_API http_message *_http_message_init_ex(http_message *message, http_message_type type ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC)
 {
        if (!message) {
-               message = ecalloc(1, sizeof(http_message));
+               message = ecalloc_rel(1, sizeof(http_message));
        }
 
-       message->type = type;
-       message->nested = NULL;
+       http_message_init_type(message, type);
+       message->parent = NULL;
        phpstr_init(&message->body);
        zend_hash_init(&message->hdrs, 0, NULL, ZVAL_PTR_DTOR, 0);
 
        return message;
 }
 
-PHP_HTTP_API http_message *_http_message_parse_ex(http_message *msg, const char *message, size_t message_length TSRMLS_DC)
+
+PHP_HTTP_API void _http_message_set_type(http_message *message, http_message_type type)
 {
-       char *body = NULL;
-       size_t header_length = 0;
-       zend_bool free_msg = msg ? 0 : 1;
+       /* just act if different */
+       if (type != message->type) {
 
-       if (message_length < HTTP_MSG_MIN_SIZE) {
-               return NULL;
-       }
+               /* free request info */
+               switch (message->type)
+               {
+                       case HTTP_MSG_REQUEST:
+                               STR_FREE(message->http.info.request.method);
+                               STR_FREE(message->http.info.request.URI);
+                       break;
+                       
+                       case HTTP_MSG_RESPONSE:
+                               STR_FREE(message->http.info.response.status);
+                       break;
+                       
+                       default:
+                       break;
+               }
 
-       if (!message) {
-               return NULL;
+               /* init */
+               http_message_init_type(message, type);
        }
+}
 
-       msg = http_message_init(msg);
+PHP_HTTP_API http_message *_http_message_parse_ex(http_message *msg, const char *message, size_t message_length ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC TSRMLS_DC)
+{
+       const char *body = NULL;
+       zend_bool free_msg = msg ? 0 : 1;
 
-       if (body = strstr(message, HTTP_CRLF HTTP_CRLF)) {
-               body += lenof(HTTP_CRLF HTTP_CRLF);
-               header_length = body - message;
-       } else {
-               header_length = message_length;
+       if ((!message) || (message_length < HTTP_MSG_MIN_SIZE)) {
+               http_error_ex(HE_WARNING, HTTP_E_INVALID_PARAM, "Empty or too short HTTP message: '%s'", message);
+               return NULL;
        }
 
-       if (SUCCESS != http_parse_headers_cb((char *)message, header_length, &msg->hdrs, 1, http_message_parse_headers_callback, (void **) &msg)) {
+       msg = http_message_init_rel(msg, 0);
+
+       if (SUCCESS != http_parse_headers_cb(message, &msg->hdrs, 1, (http_info_callback) http_message_info_callback, (void **) &msg)) {
                if (free_msg) {
-                       http_message_free(msg);
+                       http_message_free(&msg);
                }
+               http_error(HE_WARNING, HTTP_E_MALFORMED_HEADERS, "Failed to parse message headers");
                return NULL;
        }
-
-       if (body) {
-               zval **c;
-               http_message *nested;
-
-               if (SUCCESS == zend_hash_find(&msg->hdrs, "Content-Length", sizeof("Content-Length"), (void **) &c)) {
-                       long len = atol(Z_STRVAL_PP(c));
-                       phpstr_from_string_ex(PHPSTR(msg), body, len);
-                       if (nested = http_message_parse_nested(msg, body + len,  message + message_length - body - len)) {
-                               return nested;
-                       }
-               } else if (
-                               SUCCESS == zend_hash_find(&msg->hdrs, "Transfer-Encoding", sizeof("Transfer-Encoding"), (void **) &c) &&
-                               !strcasecmp("chunked", Z_STRVAL_PP(c))) {
-
-                       char *decoded, *end;
+       
+       /* header parsing stops at (CR)LF (CR)LF */
+       if ((body = http_locate_body(message))) {
+               zval *c;
+               const char *continue_at = NULL;
+               size_t remaining = message + message_length - body;
+
+               /* message has chunked transfer encoding */
+               if ((c = http_message_header(msg, "Transfer-Encoding")) && (!strcasecmp("chunked", Z_STRVAL_P(c)))) {
+                       char *decoded;
                        size_t decoded_len;
 
-                       if (end = http_chunked_decode(body, message_length - header_length, &decoded, &decoded_len)) { 
+                       /* decode and replace Transfer-Encoding with Content-Length header */
+                       if ((continue_at = http_encoding_dechunk(body, message + message_length - body, &decoded, &decoded_len))) {
+                               zval *len;
+                               char *tmp;
+                               int tmp_len;
+
+                               tmp_len = (int) spprintf(&tmp, 0, "%zu", decoded_len);
+                               MAKE_STD_ZVAL(len);
+                               ZVAL_STRINGL(len, tmp, tmp_len, 0);
+
+                               ZVAL_ADDREF(c);
+                               zend_hash_add(&msg->hdrs, "X-Original-Transfer-Encoding", sizeof("X-Original-Transfer-Encoding"), (void *) &c, sizeof(zval *), NULL);
+                               zend_hash_del(&msg->hdrs, "Transfer-Encoding", sizeof("Transfer-Encoding"));
+                               zend_hash_del(&msg->hdrs, "Content-Length", sizeof("Content-Length"));
+                               zend_hash_add(&msg->hdrs, "Content-Length", sizeof("Content-Length"), (void *) &len, sizeof(zval *), NULL);
+                               
                                phpstr_from_string_ex(PHPSTR(msg), decoded, decoded_len);
                                efree(decoded);
-                               if (nested = http_message_parse_nested(msg, end, message + message_length - end)) {
-                                       return nested;
+                       }
+               } else
+
+               /* message has content-length header */
+               if ((c = http_message_header(msg, "Content-Length"))) {
+                       ulong len = strtoul(Z_STRVAL_P(c), NULL, 10);
+                       if (len > remaining) {
+                               http_error_ex(HE_NOTICE, HTTP_E_MALFORMED_HEADERS, "The Content-Length header pretends a larger body than actually received (expected %lu bytes; got %lu bytes)", len, remaining);
+                               len = remaining;
+                       }
+                       phpstr_from_string_ex(PHPSTR(msg), body, len);
+                       continue_at = body + len;
+               } else
+
+               /* message has content-range header */
+               if ((c = http_message_header(msg, "Content-Range"))) {
+                       ulong total = 0, start = 0, end = 0, len = 0;
+                       
+                       if (!strncasecmp(Z_STRVAL_P(c), "bytes", lenof("bytes")) && 
+                                       (Z_STRVAL_P(c)[lenof("bytes")] == ':' || Z_STRVAL_P(c)[lenof("bytes")] == ' ')) {
+                               char *total_at = NULL, *end_at = NULL;
+                               char *start_at = Z_STRVAL_P(c) + sizeof("bytes");
+                               
+                               start = strtoul(start_at, &end_at, 10);
+                               if (end_at) {
+                                       end = strtoul(end_at + 1, &total_at, 10);
+                                       if (total_at && strncmp(total_at + 1, "*", 1)) {
+                                               total = strtoul(total_at + 1, NULL, 10);
+                                       }
+                                       if ((len = (end + 1 - start)) > remaining) {
+                                               http_error_ex(HE_NOTICE, HTTP_E_MALFORMED_HEADERS, "The Content-Range header pretends a larger body than actually received (expected %lu bytes; got %lu bytes)", len, remaining);
+                                               len = remaining;
+                                       }
+                                       if (end >= start && (!total || end < total)) {
+                                               phpstr_from_string_ex(PHPSTR(msg), body, len);
+                                               continue_at = body + len;
+                                       }
                                }
                        }
-               } else {
-                       phpstr_from_string_ex(PHPSTR(msg), body, message_length - header_length);
-               }
-       }
 
-       return msg;
-}
-
-PHP_HTTP_API void _http_message_parse_headers_callback(void **message, char *http_line, size_t line_length, HashTable **headers TSRMLS_DC)
-{
-       http_message *old = (http_message *) *message;
-       http_message *new;
+                       if (!continue_at) {
+                               http_error_ex(HE_WARNING, HTTP_E_MALFORMED_HEADERS, "Invalid Content-Range header: %s", Z_STRVAL_P(c));
+                       }
+               } else
 
-       if (old->type || zend_hash_num_elements(&old->hdrs) || PHPSTR_LEN(old)) {
-               new = http_message_new();
+               /* no headers that indicate content length */
+               if (HTTP_MSG_TYPE(RESPONSE, msg)) {
+                       phpstr_from_string_ex(PHPSTR(msg), body, remaining);
+               } else {
+                       continue_at = body;
+               }
+               
+#ifdef HTTP_HAVE_ZLIB
+               /* check for compressed data */
+               if (http_message_header(msg, "Vary") && (c = http_message_header(msg, "Content-Encoding"))) {
+                       char *decoded = NULL;
+                       size_t decoded_len = 0;
+
+                       if (    !strcasecmp(Z_STRVAL_P(c), "gzip") || 
+                                       !strcasecmp(Z_STRVAL_P(c), "x-gzip") ||
+                                       !strcasecmp(Z_STRVAL_P(c), "deflate") ||
+                                       !strcasecmp(Z_STRVAL_P(c), "compress") ||
+                                       !strcasecmp(Z_STRVAL_P(c), "x-compress")) {
+                               http_encoding_inflate(PHPSTR_VAL(msg), PHPSTR_LEN(msg), &decoded, &decoded_len);
+                       }
+                       
+                       if (decoded) {
+                               zval *len, **original_len;
+                               char *tmp;
+                               int tmp_len;
+                               
+                               tmp_len = (int) spprintf(&tmp, 0, "%zu", decoded_len);
+                               MAKE_STD_ZVAL(len);
+                               ZVAL_STRINGL(len, tmp, tmp_len, 0);
+
+                               ZVAL_ADDREF(c);
+                               zend_hash_add(&msg->hdrs, "X-Original-Content-Encoding", sizeof("X-Original-Content-Encoding"), (void *) &c, sizeof(zval *), NULL);
+                               zend_hash_del(&msg->hdrs, "Content-Encoding", sizeof("Content-Encoding"));
+                               if (SUCCESS == zend_hash_find(&msg->hdrs, "Content-Length", sizeof("Content-Length"), (void **) &original_len)) {
+                                       ZVAL_ADDREF(*original_len);                                     
+                                       zend_hash_add(&msg->hdrs, "X-Original-Content-Length", sizeof("X-Original-Content-Length"), (void *) original_len, sizeof(zval *), NULL);
+                                       zend_hash_update(&msg->hdrs, "Content-Length", sizeof("Content-Length"), (void *) &len, sizeof(zval *), NULL);
+                               } else {
+                                       zend_hash_add(&msg->hdrs, "Content-Length", sizeof("Content-Length"), (void *) &len, sizeof(zval *), NULL);
+                               }
 
-               new->nested = old;
-               *message = new;
-               *headers = &new->hdrs;
-       } else {
-               new = old;
+                               phpstr_dtor(PHPSTR(msg));
+                               PHPSTR(msg)->data = decoded;
+                               PHPSTR(msg)->used = decoded_len;
+                               PHPSTR(msg)->free = 1;
+                       }
+               }
+#endif /* HTTP_HAVE_ZLIB */
+
+               /* check for following messages */
+               if (continue_at && (continue_at < (message + message_length))) {
+                       while (isspace(*continue_at)) ++continue_at;
+                       if (continue_at < (message + message_length)) {
+                               http_message *next = NULL, *most = NULL;
+
+                               /* set current message to parent of most parent following messages and return deepest */
+                               if ((most = next = http_message_parse_rel(NULL, continue_at, message + message_length - continue_at))) {
+                                       while (most->parent) most = most->parent;
+                                       most->parent = msg;
+                                       msg = next;
+                               }
+                       }
+               }
        }
 
-       // response
-       if (!strncmp(http_line, "HTTP/1.", lenof("HTTP/1."))) {
-               new->type = HTTP_MSG_RESPONSE;
-               new->info.response.http_version = atof(http_line + lenof("HTTP/"));
-               new->info.response.code = atoi(http_line + lenof("HTTP/1.1 "));
-       } else
-       // request
-       if (!strncmp(http_line + line_length - lenof("HTTP/1.1"), "HTTP/1.", lenof("HTTP/1."))) {
-               const char *method_sep_uri = strchr(http_line, ' ');
-
-               new->type = HTTP_MSG_REQUEST;
-               new->info.request.http_version = atof(http_line + line_length - lenof("1.1"));
-               new->info.request.method = estrndup(http_line, method_sep_uri - http_line);
-               new->info.request.URI = estrndup(method_sep_uri + 1, http_line + line_length - method_sep_uri - 1 - lenof(" HTTP/1.1"));
-       }
+       return msg;
 }
 
 PHP_HTTP_API void _http_message_tostring(http_message *msg, char **string, size_t *length)
@@ -161,53 +292,61 @@ PHP_HTTP_API void _http_message_tostring(http_message *msg, char **string, size_
        char *key, *data;
        ulong idx;
        zval **header;
+       HashPosition pos1;
 
        phpstr_init_ex(&str, 4096, 0);
 
-       do {
-
-               switch (msg->type)
-               {
-                       case HTTP_MSG_REQUEST:
-                               phpstr_appendf(&str, "%s %s HTTP/%1.1f" HTTP_CRLF,
-                                       msg->info.request.method,
-                                       msg->info.request.URI,
-                                       msg->info.request.http_version);
-                       break;
+       switch (msg->type)
+       {
+               case HTTP_MSG_REQUEST:
+                       phpstr_appendf(&str, "%s %s HTTP/%1.1f" HTTP_CRLF,
+                               msg->http.info.request.method,
+                               msg->http.info.request.URI,
+                               msg->http.version);
+               break;
+
+               case HTTP_MSG_RESPONSE:
+                       phpstr_appendf(&str, "HTTP/%1.1f %d%s%s" HTTP_CRLF,
+                               msg->http.version,
+                               msg->http.info.response.code,
+                               *msg->http.info.response.status ? " ":"",
+                               msg->http.info.response.status);
+               break;
+
+               case HTTP_MSG_NONE:
+               default:
+               break;
+       }
 
-                       case HTTP_MSG_RESPONSE:
-                               phpstr_appendf(&str, "HTTP/%1.1f %d" HTTP_CRLF,
-                                       msg->info.response.http_version,
-                                       msg->info.response.code);
-                       break;
-               }
+       FOREACH_HASH_KEYVAL(pos1, &msg->hdrs, key, idx, header) {
+               if (key) {
+                       zval **single_header;
 
-               FOREACH_HASH_KEYVAL(&msg->hdrs, key, idx, header) {
-                       if (key) {
-                               zval **single_header;
+                       switch (Z_TYPE_PP(header))
+                       {
+                               case IS_STRING:
+                                       phpstr_appendf(&str, "%s: %s" HTTP_CRLF, key, Z_STRVAL_PP(header));
+                               break;
 
-                               switch (Z_TYPE_PP(header))
+                               case IS_ARRAY:
                                {
-                                       case IS_STRING:
-                                               phpstr_appendf(&str, "%s: %s" HTTP_CRLF, key, Z_STRVAL_PP(header));
-                                       break;
-
-                                       case IS_ARRAY:
-                                               FOREACH_VAL(*header, single_header) {
-                                                       phpstr_appendf(&str, "%s: %s" HTTP_CRLF, key, Z_STRVAL_PP(single_header));
-                                               }
-                                       break;
+                                       HashPosition pos2;
+                                       FOREACH_VAL(pos2, *header, single_header) {
+                                               phpstr_appendf(&str, "%s: %s" HTTP_CRLF, key, Z_STRVAL_PP(single_header));
+                                       }
                                }
-
-                               key = NULL;
+                               break;
                        }
+
+                       key = NULL;
                }
+       }
 
+       if (PHPSTR_LEN(msg)) {
                phpstr_appends(&str, HTTP_CRLF);
                phpstr_append(&str, PHPSTR_VAL(msg), PHPSTR_LEN(msg));
                phpstr_appends(&str, HTTP_CRLF);
-
-       } while (msg = msg->nested);
+       }
 
        data = phpstr_data(&str, string, length);
        if (!string) {
@@ -217,33 +356,226 @@ PHP_HTTP_API void _http_message_tostring(http_message *msg, char **string, size_
        phpstr_dtor(&str);
 }
 
+PHP_HTTP_API void _http_message_serialize(http_message *message, char **string, size_t *length)
+{
+       char *buf;
+       size_t len;
+       phpstr str;
+
+       phpstr_init(&str);
+
+       do {
+               http_message_tostring(message, &buf, &len);
+               phpstr_prepend(&str, buf, len);
+               efree(buf);
+       } while ((message = message->parent));
+
+       buf = phpstr_data(&str, string, length);
+       if (!string) {
+               efree(buf);
+       }
+
+       phpstr_dtor(&str);
+}
+
+PHP_HTTP_API void _http_message_tostruct_recursive(http_message *msg, zval *obj TSRMLS_DC)
+{
+       zval strct;
+       zval *headers;
+       
+       INIT_ZARR(strct, HASH_OF(obj));
+       
+       add_assoc_long(&strct, "type", msg->type);
+       add_assoc_double(&strct, "httpVersion", msg->http.version);
+       switch (msg->type)
+       {
+               case HTTP_MSG_RESPONSE:
+                       add_assoc_long(&strct, "responseCode", msg->http.info.response.code);
+                       add_assoc_string(&strct, "responseStatus", msg->http.info.response.status, 1);
+               break;
+               
+               case HTTP_MSG_REQUEST:
+                       add_assoc_string(&strct, "requestMethod", msg->http.info.request.method, 1);
+                       add_assoc_string(&strct, "requestUri", msg->http.info.request.URI, 1);
+               break;
+               
+               case HTTP_MSG_NONE:
+                       /* avoid compiler warning */
+               break;
+       }
+       
+       MAKE_STD_ZVAL(headers);
+       array_init(headers);
+       zend_hash_copy(Z_ARRVAL_P(headers), &msg->hdrs, (copy_ctor_func_t) zval_add_ref, NULL, sizeof(zval *));
+       add_assoc_zval(&strct, "headers", headers);
+       
+       add_assoc_stringl(&strct, "body", PHPSTR_VAL(msg), PHPSTR_LEN(msg), 1);
+       
+       if (msg->parent) {
+               zval *parent;
+               
+               MAKE_STD_ZVAL(parent);
+               if (Z_TYPE_P(obj) == IS_ARRAY) {
+                       array_init(parent);
+               } else {
+                       object_init(parent);
+               }
+               add_assoc_zval(&strct, "parentMessage", parent);
+               http_message_tostruct_recursive(msg->parent, parent);
+       } else {
+               add_assoc_null(&strct, "parentMessage");
+       }
+}
+
+PHP_HTTP_API STATUS _http_message_send(http_message *message TSRMLS_DC)
+{
+       STATUS rs = FAILURE;
+
+       switch (message->type)
+       {
+               case HTTP_MSG_RESPONSE:
+               {
+                       char *key;
+                       ulong idx;
+                       zval **val;
+                       HashPosition pos1;
+
+                       FOREACH_HASH_KEYVAL(pos1, &message->hdrs, key, idx, val) {
+                               if (key) {
+                                       if (Z_TYPE_PP(val) == IS_ARRAY) {
+                                               zend_bool first = 1;
+                                               zval **data;
+                                               HashPosition pos2;
+                                               
+                                               FOREACH_VAL(pos2, *val, data) {
+                                                       http_send_header_ex(key, strlen(key), Z_STRVAL_PP(data), Z_STRLEN_PP(data), first, NULL);
+                                                       first = 0;
+                                               }
+                                       } else {
+                                               http_send_header_ex(key, strlen(key), Z_STRVAL_PP(val), Z_STRLEN_PP(val), 1, NULL);
+                                       }
+                                       key = NULL;
+                               }
+                       }
+                       rs =    SUCCESS == http_send_status(message->http.info.response.code) &&
+                                       SUCCESS == http_send_data(PHPSTR_VAL(message), PHPSTR_LEN(message)) ?
+                                       SUCCESS : FAILURE;
+               }
+               break;
+
+               case HTTP_MSG_REQUEST:
+               {
+#ifdef HTTP_HAVE_CURL
+                       char *uri = NULL;
+                       http_request request;
+                       zval **zhost, options, headers;
+
+                       INIT_PZVAL(&options);
+                       INIT_PZVAL(&headers);
+                       array_init(&options);
+                       array_init(&headers);
+                       zend_hash_copy(Z_ARRVAL(headers), &message->hdrs, (copy_ctor_func_t) zval_add_ref, NULL, sizeof(zval *));
+                       add_assoc_zval(&options, "headers", &headers);
+
+                       /* check host header */
+                       if (SUCCESS == zend_hash_find(&message->hdrs, "Host", sizeof("Host"), (void **) &zhost)) {
+                               char *colon = NULL;
+                               php_url parts, *url = php_url_parse(message->http.info.request.URI);
+                               
+                               memset(&parts, 0, sizeof(php_url));
+
+                               /* check for port */
+                               if ((colon = strchr(Z_STRVAL_PP(zhost), ':'))) {
+                                       parts.port = atoi(colon + 1);
+                                       parts.host = estrndup(Z_STRVAL_PP(zhost), (Z_STRVAL_PP(zhost) - colon - 1));
+                               } else {
+                                       parts.host = estrndup(Z_STRVAL_PP(zhost), Z_STRLEN_PP(zhost));
+                               }
+                               
+                               http_build_url(url, &parts, NULL, &uri, NULL);
+                               php_url_free(url);
+                               efree(parts.host);
+                       } else {
+                               uri = http_absolute_url(message->http.info.request.URI);
+                       }
+
+                       if ((request.meth = http_request_method_exists(1, 0, message->http.info.request.method))) {
+                               http_request_body body;
+                               
+                               http_request_init_ex(&request, NULL, request.meth, uri);
+                               request.body = http_request_body_init_ex(&body, HTTP_REQUEST_BODY_CSTRING, PHPSTR_VAL(message), PHPSTR_LEN(message), 0);
+                               if (SUCCESS == (rs = http_request_prepare(&request, NULL))) {
+                                       http_request_exec(&request);
+                               }
+                               http_request_dtor(&request);
+                       } else {
+                               http_error_ex(HE_WARNING, HTTP_E_REQUEST_METHOD,
+                                       "Cannot send HttpMessage. Request method %s not supported",
+                                       message->http.info.request.method);
+                       }
+                       efree(uri);
+#else
+                       http_error(HE_WARNING, HTTP_E_RUNTIME, "HTTP requests not supported - ext/http was not linked against libcurl.");
+#endif
+               }
+               break;
+
+               case HTTP_MSG_NONE:
+               default:
+                       http_error(HE_WARNING, HTTP_E_MESSAGE_TYPE, "HttpMessage is neither of type HTTP_MSG_REQUEST nor HTTP_MSG_RESPONSE");
+               break;
+       }
+
+       return rs;
+}
+
+PHP_HTTP_API http_message *_http_message_dup(http_message *msg TSRMLS_DC)
+{
+       /*
+        * TODO: unroll
+        */
+       http_message *new;
+       char *serialized_data;
+       size_t serialized_length;
+
+       http_message_serialize(msg, &serialized_data, &serialized_length);
+       new = http_message_parse(serialized_data, serialized_length);
+       efree(serialized_data);
+       return new;
+}
+
 PHP_HTTP_API void _http_message_dtor(http_message *message)
 {
        if (message) {
                zend_hash_destroy(&message->hdrs);
                phpstr_dtor(PHPSTR(message));
-               if (message->type == HTTP_MSG_REQUEST) {
-                       if (message->info.request.method) {
-                               efree(message->info.request.method);
-                               message->info.request.method = NULL;
-                       }
-                       if (message->info.request.URI) {
-                               efree(message->info.request.URI);
-                               message->info.request.URI = NULL;
-                       }
+               
+               switch (message->type)
+               {
+                       case HTTP_MSG_REQUEST:
+                               STR_SET(message->http.info.request.method, NULL);
+                               STR_SET(message->http.info.request.URI, NULL);
+                       break;
+                       
+                       case HTTP_MSG_RESPONSE:
+                               STR_SET(message->http.info.response.status, NULL);
+                       break;
+                       
+                       default:
+                       break;
                }
        }
 }
 
-PHP_HTTP_API void _http_message_free(http_message *message)
+PHP_HTTP_API void _http_message_free(http_message **message)
 {
-       if (message) {
-               if (message->nested) {
-                       http_message_free(message->nested);
-                       message->nested = NULL;
+       if (*message) {
+               if ((*message)->parent) {
+                       http_message_free(&(*message)->parent);
                }
-               http_message_dtor(message);
-               efree(message);
+               http_message_dtor(*message);
+               efree(*message);
+               *message = NULL;
        }
 }