- simplify http_send_header API
[m6w6/ext-http] / http_message_api.c
index e9eccbff55fde8f22cdc3cbd5285d878ccb43a64..8d062b1bac600e3bb6e48a385a0f30372addd103 100644 (file)
 #ifdef HAVE_CONFIG_H
 #      include "config.h"
 #endif
-
 #include "php.h"
+
 #include "php_http.h"
 #include "php_http_std_defs.h"
+#include "php_http_api.h"
 #include "php_http_message_api.h"
 #include "php_http_headers_api.h"
+#include "php_http_send_api.h"
+#include "php_http_request_api.h"
+#include "php_http_url_api.h"
 
 #include "phpstr/phpstr.h"
 
-PHP_HTTP_API void _http_message_dtor(http_message *message)
+ZEND_EXTERN_MODULE_GLOBALS(http);
+
+#define http_message_headers_cb _http_message_headers_cb
+static void _http_message_headers_cb(const char *http_line, HashTable **headers, void **message TSRMLS_DC)
 {
-       if (message) {
-               zend_hash_destroy(&message->hdrs);
-               phpstr_dtor(PHPSTR(message));
-               if (message->raw) {
-                       efree(message->raw);
-               }
-               if (message->type == HTTP_MSG_REQUEST) {
-                       if (message->info.request.method) {
-                               efree(message->info.request.method);
-                       }
-                       if (message->info.request.URI) {
-                               efree(message->info.request.URI);
-                       }
-               }
+       size_t line_length;
+       char *crlf = NULL;
+       http_message *new, *old = (http_message *) *message;
+
+       if (crlf = strstr(http_line, HTTP_CRLF)) {
+               line_length = crlf - http_line;
+       } else {
+               line_length = strlen(http_line);
+       }
+
+       if (old->type || zend_hash_num_elements(&old->hdrs) || PHPSTR_LEN(old)) {
+               new = http_message_new();
+
+               new->parent = old;
+               *message = new;
+               *headers = &new->hdrs;
+       } else {
+               new = old;
+       }
+
+       while (isspace(http_line[line_length-1])) --line_length;
+
+       // 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"));
        }
 }
 
-PHP_HTTP_API void _http_message_free(http_message *message)
+#define http_message_init_type _http_message_init_type
+static inline void _http_message_init_type(http_message *message, http_message_type type)
 {
-       if (message) {
-               if (message->nested) {
-                       http_message_free(message->nested);
-               }
-               http_message_dtor(message);
-               efree(message);
+       switch (message->type = type)
+       {
+               case HTTP_MSG_RESPONSE:
+                       message->info.response.http_version = .0;
+                       message->info.response.code = 0;
+               break;
+
+               case HTTP_MSG_REQUEST:
+                       message->info.request.http_version = .0;
+                       message->info.request.method = NULL;
+                       message->info.request.URI = NULL;
+               break;
+
+               case HTTP_MSG_NONE:
+               default:
+               break;
        }
 }
 
@@ -63,70 +102,130 @@ PHP_HTTP_API http_message *_http_message_init_ex(http_message *message, http_mes
                message = ecalloc(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(char *message, size_t length, zend_bool dup TSRMLS_DC)
+
+PHP_HTTP_API void _http_message_set_type(http_message *message, http_message_type type)
+{
+       /* just act if different */
+       if (type != message->type) {
+
+               /* free request info */
+               if (message->type == HTTP_MSG_REQUEST) {
+                       if (message->info.request.method) {
+                               efree(message->info.request.method);
+                       }
+                       if (message->info.request.URI) {
+                               efree(message->info.request.URI);
+                       }
+               }
+
+               /* init */
+               http_message_init_type(message, type);
+       }
+}
+
+PHP_HTTP_API http_message *_http_message_parse_ex(http_message *msg, const char *message, size_t message_length TSRMLS_DC)
 {
-       char *message_start = message, *body = NULL;
-       size_t message_length = length, header_length = 0;
-       http_message *msg;
+       char *body = NULL;
+       zend_bool free_msg = msg ? 0 : 1;
 
-       if (length < HTTP_MSG_MIN_SIZE) {
+       if (message_length < HTTP_MSG_MIN_SIZE) {
                return NULL;
        }
+
        if (!message) {
                return NULL;
        }
 
-       if (!(message_start = strstr(message, HTTP_CRLF))) {
+       msg = http_message_init(msg);
+
+       if (SUCCESS != http_parse_headers_cb(message, &msg->hdrs, 1, http_message_headers_cb, (void **) &msg)) {
+               if (free_msg) {
+                       http_message_free(msg);
+               }
                return NULL;
        }
 
-       msg = http_message_init();
+       /* header parsing stops at CRLF CRLF */
+       if (body = strstr(message, HTTP_CRLF HTTP_CRLF)) {
+               zval *c;
+               const char *continue_at = NULL;
 
-       msg->len = length;
-       msg->raw = dup ? estrndup(message, length) : message;
+               body += lenof(HTTP_CRLF HTTP_CRLF);
 
-       // response
-       if (!strncmp(message, "HTTP/1.", lenof("HTTP/1."))) {
-               msg->type = HTTP_MSG_RESPONSE;
-               msg->info.response.http_version = atof(message + lenof("HTTP/"));
-               msg->info.response.status = atoi(message + lenof("HTTP/1.1 "));
-       } else
-       // request
-       if (!strncmp(message_start - lenof("HTTP/1.1"), "HTTP/1.", lenof("HTTP/1."))) {
-               const char *method_sep_uri = strchr(message, ' ');
+               /* message has content-length header */
+               if (c = http_message_header(msg, "Content-Length")) {
+                       long len = atol(Z_STRVAL_P(c));
+                       phpstr_from_string_ex(PHPSTR(msg), body, len);
+                       continue_at = body + len;
+               } else
 
-               msg->type = HTTP_MSG_REQUEST;
-               msg->info.request.http_version = atof(message_start - lenof("1.1"));
-               msg->info.request.method = estrndup(message, method_sep_uri - message);
-               msg->info.request.URI = estrndup(method_sep_uri + 1, message_start - method_sep_uri - 1 - lenof(" HTTP/1.1"));
-       } else {
-               http_message_free(msg);
-               return NULL;
-       }
+               /* message has chunked transfer encoding */
+               if (c = http_message_header(msg, "Transfer-Encoding")) {
+                       if (!strcasecmp("chunked", Z_STRVAL_P(c))) {
+                               char *decoded;
+                               size_t decoded_len;
 
-       message_start += lenof(HTTP_CRLF);
-       message_length -= message_start - message;
+                               /* decode and replace Transfer-Encoding with Content-Length header */
+                               if (continue_at = http_chunked_decode(body, message + message_length - body, &decoded, &decoded_len)) {
+                                       phpstr_from_string_ex(PHPSTR(msg), decoded, decoded_len);
+                                       efree(decoded);
+                                       {
+                                               zval *len;
+                                               char *tmp;
 
-       if (body = strstr(message_start, HTTP_CRLF HTTP_CRLF)) {
-               body += lenof(HTTP_CRLF HTTP_CRLF);
-               header_length = body - message_start;
-               phpstr_from_string_ex(PHPSTR(msg), body, message_length - header_length);
-       } else {
-               header_length = message_length;
-       }
+                                               spprintf(&tmp, 0, "%lu", (ulong) decoded_len);
+                                               MAKE_STD_ZVAL(len);
+                                               ZVAL_STRING(len, tmp, 0);
 
-       if (SUCCESS != http_parse_headers_ex(message_start, header_length, &msg->hdrs, 1)) {
-               http_message_free(msg);
-               return NULL;
+                                               zend_hash_del(&msg->hdrs, "Transfer-Encoding", sizeof("Transfer-Encoding"));
+                                               zend_hash_add(&msg->hdrs, "Content-Length", sizeof("Content-Length"), (void *) &len, sizeof(zval *), NULL);
+                                       }
+                               }
+                       }
+               } else
+
+               /* message has content-range header */
+               if (c = http_message_header(msg, "Content-Range")) {
+                       ulong start = 0, end = 0;
+
+                       sscanf(Z_STRVAL_P(c), "bytes=%lu-%lu", &start, &end);
+                       if (end > start) {
+                               phpstr_from_string_ex(PHPSTR(msg), body, (size_t) (end - start));
+                               continue_at = body + (end - start);
+                       }
+               } else
+
+               /* no headers that indicate content length */
+               if (HTTP_MSG_TYPE(RESPONSE, msg)) {
+                       phpstr_from_string_ex(PHPSTR(msg), body, message + message_length - body);
+               } else {
+                       continue_at = body;
+               }
+
+               /* check for following messages */
+               if (continue_at) {
+                       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(continue_at, message + message_length - continue_at)) {
+                                       while (most->parent) most = most->parent;
+                                       most->parent = msg;
+                                       msg = next;
+                               }
+                       }
+               }
        }
+
        return msg;
 }
 
@@ -137,8 +236,7 @@ PHP_HTTP_API void _http_message_tostring(http_message *msg, char **string, size_
        ulong idx;
        zval **header;
 
-       phpstr_init_ex(&str, msg->len, 1);
-       str.size = 4096;
+       phpstr_init_ex(&str, 4096, 0);
 
        switch (msg->type)
        {
@@ -152,36 +250,40 @@ PHP_HTTP_API void _http_message_tostring(http_message *msg, char **string, size_
                case HTTP_MSG_RESPONSE:
                        phpstr_appendf(&str, "HTTP/%1.1f %d" HTTP_CRLF,
                                msg->info.response.http_version,
-                               msg->info.response.status);
+                               msg->info.response.code);
+               break;
+
+               case HTTP_MSG_NONE:
+               default:
                break;
        }
 
        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;
-                               
+
                                case IS_ARRAY:
-                               {
-                                       zval **single_header;
-                                       
                                        FOREACH_VAL(*header, single_header) {
                                                phpstr_appendf(&str, "%s: %s" HTTP_CRLF, key, Z_STRVAL_PP(single_header));
                                        }
-                               }
                                break;
                        }
-                       
+
                        key = NULL;
                }
        }
 
-       phpstr_appends(&str, HTTP_CRLF);
-       phpstr_append(&str, PHPSTR_VAL(msg), PHPSTR_LEN(msg));
-       phpstr_fix(&str);
+       if (PHPSTR_LEN(msg)) {
+               phpstr_appends(&str, HTTP_CRLF);
+               phpstr_append(&str, PHPSTR_VAL(msg), PHPSTR_LEN(msg));
+               phpstr_appends(&str, HTTP_CRLF);
+       }
 
        data = phpstr_data(&str, string, length);
        if (!string) {
@@ -190,3 +292,177 @@ 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 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;
+
+                       FOREACH_HASH_KEYVAL(&message->hdrs, key, idx, val) {
+                               if (key) {
+                                       if (Z_TYPE_PP(val) == IS_ARRAY) {
+                                               zend_bool first = 1;
+                                               zval **data;
+                                               
+                                               FOREACH_VAL(*val, data) {
+                                                       http_send_header_ex(key, strlen(key), Z_STRVAL_PP(data), Z_STRLEN_PP(data), first);
+                                                       first = 0;
+                                               }
+                                       } else {
+                                               http_send_header_ex(key, strlen(key), Z_STRVAL_PP(val), Z_STRLEN_PP(val), 1);
+                                       }
+                                       key = NULL;
+                               }
+                       }
+                       rs =    SUCCESS == http_send_status(message->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;
+                       zval **zhost, options, 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, *host = NULL;
+                               size_t host_len = 0;
+                               int port = 0;
+
+                               /* check for port */
+                               if (colon = strchr(Z_STRVAL_PP(zhost), ':')) {
+                                       port = atoi(colon + 1);
+                                       host = estrndup(Z_STRVAL_PP(zhost), host_len = (Z_STRVAL_PP(zhost) - colon - 1));
+                               } else {
+                                       host = estrndup(Z_STRVAL_PP(zhost), host_len = Z_STRLEN_PP(zhost));
+                               }
+                               uri = http_absolute_uri_ex(
+                                       message->info.request.URI, strlen(message->info.request.URI),
+                                       NULL, 0, host, host_len, port);
+                               efree(host);
+                       } else {
+                               uri = http_absolute_uri(message->info.request.URI);
+                       }
+
+                       if (!strcasecmp("POST", message->info.request.method)) {
+                               http_request_body body = {HTTP_REQUEST_BODY_CSTRING, PHPSTR_VAL(message), PHPSTR_LEN(message)};
+                               rs = http_post(uri, &body, Z_ARRVAL(options), NULL, NULL);
+                       } else
+                       if (!strcasecmp("GET", message->info.request.method)) {
+                               rs = http_get(uri, Z_ARRVAL(options), NULL, NULL);
+                       } else
+                       if (!strcasecmp("HEAD", message->info.request.method)) {
+                               rs = http_head(uri, Z_ARRVAL(options), NULL, NULL);
+                       } else {
+                               http_error_ex(HE_WARNING, HTTP_E_REQUEST_METHOD,
+                                       "Cannot send HttpMessage. Request method %s not supported",
+                                       message->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 (HTTP_MSG_TYPE(REQUEST, message)) {
+                       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;
+                       }
+               }
+       }
+}
+
+PHP_HTTP_API void _http_message_free(http_message *message)
+{
+       if (message) {
+               if (message->parent) {
+                       http_message_free(message->parent);
+                       message->parent = NULL;
+               }
+               http_message_dtor(message);
+               efree(message);
+       }
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: noet sw=4 ts=4 fdm=marker
+ * vim<600: noet sw=4 ts=4
+ */
+