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event.c
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/*
* Copyright (c) 2009, Kargo Global Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Kargo Global Inc. nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Kargo Global Inc. ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Kargo Global Inc. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Author: Florian Hoenig <[email protected]>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "php_event.h"
#ifndef HAVE_TAILQFOREACH
#include <sys/queue.h>
#endif
/* include libevent header */
#include <event.h>
#include <evhttp.h>
/* network byteorder stuff */
#include <arpa/inet.h>
/* If you declare any globals in php_event.h uncomment this:
ZEND_DECLARE_MODULE_GLOBALS(event)
*/
/* True global resources - no need for thread safety here */
static int le_evhttp;
static int le_evhttp_request;
static int le_evbuffer;
static int le_event;
static int le_bufferevent;
static int le_evhttp_connection;
static int le_evhttp_response;
static struct event_base *current_base;
/* Forward declarations */
static void event_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC);
static void bufferevent_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC);
static void evhttp_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC);
static void evhttp_request_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC);
static void evhttp_connection_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC);
static void evhttp_response_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC);
/* Function argument info decarations */
#ifdef ZEND_ENGINE_2
ZEND_BEGIN_ARG_INFO(bufferevent_read_byref_arginfo, 0)
ZEND_ARG_PASS_INFO(0)
ZEND_ARG_PASS_INFO(1)
ZEND_ARG_PASS_INFO(0)
ZEND_END_ARG_INFO()
#else
static unsigned char bufferevent_read_byref_arginfo[] = { 2, BYREF_FORCE, BYREF_NONE };
#endif
/* {{{ event_functions[]
*
* Every user visible function must have an entry in event_functions[].
*/
zend_function_entry event_functions[] = {
PHP_FE(event_init, NULL)
PHP_FE(event_reinit, NULL)
PHP_FE(event_new, NULL)
PHP_FE(event_free, NULL)
PHP_FE(event_set, NULL)
PHP_FE(event_add, NULL)
PHP_FE(event_del, NULL)
PHP_FE(event_dispatch, NULL)
PHP_FE(event_loopbreak, NULL)
PHP_FE(evhttp_start, NULL)
PHP_FE(evhttp_connection_new, NULL)
PHP_FE(evhttp_connection_set_closecb, NULL)
PHP_FE(evhttp_request_new, NULL)
PHP_FE(evhttp_request_free, NULL)
PHP_FE(evhttp_make_request, NULL)
PHP_FE(evhttp_set_gencb, NULL)
PHP_FE(evhttp_request_uri, NULL)
PHP_FE(evhttp_request_method, NULL)
PHP_FE(evhttp_request_body, NULL)
PHP_FE(evhttp_request_append_body, NULL)
PHP_FE(evhttp_request_input_buffer, NULL)
PHP_FE(evhttp_request_find_header, NULL)
PHP_FE(evhttp_request_headers, NULL)
PHP_FE(evhttp_request_add_header, NULL)
PHP_FE(evhttp_request_status, NULL)
PHP_FE(evhttp_response_set, NULL)
PHP_FE(evhttp_response_add_header, NULL)
PHP_FE(evbuffer_new, NULL)
PHP_FE(evbuffer_free, NULL)
PHP_FE(evbuffer_add, NULL)
PHP_FE(evbuffer_readline, NULL)
PHP_FE(bufferevent_new, NULL)
PHP_FE(bufferevent_enable, NULL)
PHP_FE(bufferevent_disable, NULL)
PHP_FE(bufferevent_read, bufferevent_read_byref_arginfo)
PHP_FE(bufferevent_write, NULL)
PHP_FE(ntohs, NULL)
PHP_FE(ntohl, NULL)
PHP_FE(htons, NULL)
PHP_FE(htonl, NULL)
{NULL, NULL, NULL} /* Must be the last line in event_functions[] */
};
/* }}} */
/* {{{ event_module_entry
*/
zend_module_entry event_module_entry = {
#if ZEND_MODULE_API_NO >= 20010901
STANDARD_MODULE_HEADER,
#endif
"event",
event_functions,
PHP_MINIT(event),
PHP_MSHUTDOWN(event),
NULL, /* Replace with NULL if there's nothing to do at request start */
NULL, /* Replace with NULL if there's nothing to do at request end */
PHP_MINFO(event),
#if ZEND_MODULE_API_NO >= 20010901
"0.2", /* Replace with version number for your extension */
#endif
STANDARD_MODULE_PROPERTIES
};
/* }}} */
#ifdef COMPILE_DL_EVENT
ZEND_GET_MODULE(event)
#endif
/* {{{ PHP_INI
*/
/* Remove comments and fill if you need to have entries in php.ini
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("event.global_value", "42", PHP_INI_ALL, OnUpdateLong, global_value, zend_event_globals, event_globals)
STD_PHP_INI_ENTRY("event.global_string", "foobar", PHP_INI_ALL, OnUpdateString, global_string, zend_event_globals, event_globals)
PHP_INI_END()
*/
/* }}} */
/* {{{ php_event_init_globals
*/
/* Uncomment this function if you have INI entries
static void php_event_init_globals(zend_event_globals *event_globals)
{
event_globals->global_value = 0;
event_globals->global_string = NULL;
}
*/
/* }}} */
/* {{{ PHP_MINIT_FUNCTION
*/
PHP_MINIT_FUNCTION(event)
{
/* If you have INI entries, uncomment these lines
REGISTER_INI_ENTRIES();
*/
/* resource types */
le_evhttp = zend_register_list_destructors_ex(evhttp_dtor, NULL, PHP_EVHTTP_RES_NAME, module_number);
le_evhttp_request = zend_register_list_destructors_ex(evhttp_request_dtor, NULL, PHP_EVHTTP_REQUEST_RES_NAME, module_number);
le_evhttp_connection = zend_register_list_destructors_ex(evhttp_connection_dtor, NULL, PHP_EVHTTP_CONNECTION_RES_NAME, module_number);
le_evbuffer = zend_register_list_destructors_ex(NULL, NULL, PHP_EVBUFFER_RES_NAME, module_number);
le_event = zend_register_list_destructors_ex(event_dtor, NULL, PHP_EVENT_RES_NAME, module_number);
le_bufferevent = zend_register_list_destructors_ex(bufferevent_dtor, NULL, PHP_BUFFEREVENT_RES_NAME, module_number);
le_evhttp_response = zend_register_list_destructors_ex(evhttp_response_dtor, NULL, PHP_EVHTTP_RESPONSE_RES_NAME, module_number);
/* libevent constants */
REGISTER_LONG_CONSTANT("EV_READ", EV_READ, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("EV_WRITE", EV_WRITE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("EV_TIMEOUT", EV_TIMEOUT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("EV_SIGNAL", EV_SIGNAL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("EV_PERSIST", EV_PERSIST, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("EVBUFFER_EOF", EVBUFFER_EOF, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("EVBUFFER_ERROR", EVBUFFER_ERROR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("EVHTTP_REQ_GET", EVHTTP_REQ_GET, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("EVHTTP_REQ_POST", EVHTTP_REQ_POST, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("EVHTTP_REQ_HEAD", EVHTTP_REQ_HEAD, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("EVHTTP_REQUEST", EVHTTP_REQUEST, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("EVHTTP_RESPONSE", EVHTTP_RESPONSE, CONST_CS | CONST_PERSISTENT);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION
*/
PHP_MSHUTDOWN_FUNCTION(event)
{
/* uncomment this line if you have INI entries
UNREGISTER_INI_ENTRIES();
*/
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION
*/
PHP_MINFO_FUNCTION(event)
{
php_info_print_table_start();
php_info_print_table_header(2, "event support", "enabled");
php_info_print_table_end();
/* Remove comments if you have entries in php.ini
DISPLAY_INI_ENTRIES();
*/
}
/* }}} */
PHP_FUNCTION(event_init)
{
current_base = event_init();
}
PHP_FUNCTION(event_reinit)
{
event_reinit(current_base);
}
PHP_FUNCTION(event_dispatch)
{
event_dispatch();
}
PHP_FUNCTION(event_loopbreak)
{
if (event_loopbreak() == 0)
{
RETURN_TRUE;
}
else
{
RETURN_FALSE;
}
}
/*
* Create an event struct and register it as resource
*/
PHP_FUNCTION(event_new)
{
struct event *e;
if (!(e = malloc(sizeof(struct event))))
{
php_error_docref(NULL TSRMLS_CC, E_ERROR, "Could not create event resource");
RETURN_FALSE;
}
e->ev_arg = NULL;
//php_printf("Event created...\n");
ZEND_REGISTER_RESOURCE(return_value, e, le_event);
}
/*
* Destructor for bufferevent resource
*/
static void bufferevent_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
struct bufferevent *e = (struct bufferevent*)rsrc->ptr;
int i;
if (e->cbarg != NULL)
{
zval_dtor(((php_bufferevent*)(e->cbarg))->r_cb);
FREE_ZVAL(((php_bufferevent*)(e->cbarg))->r_cb);
zval_dtor(((php_bufferevent*)(e->cbarg))->w_cb);
FREE_ZVAL(((php_bufferevent*)(e->cbarg))->w_cb);
zval_dtor(((php_bufferevent*)(e->cbarg))->e_cb);
FREE_ZVAL(((php_bufferevent*)(e->cbarg))->e_cb);
zval_dtor(((php_bufferevent*)(e->cbarg))->stream);
zend_list_delete( Z_RESVAL_P(((php_event*)(e->cbarg))->stream) );
FREE_ZVAL(((php_bufferevent*)(e->cbarg))->stream);
FREE_ZVAL(((php_bufferevent*)(e->cbarg))->res_bufferevent);
free(e->cbarg);
}
bufferevent_free(e);
}
/*
* Destructor for evhttp resource
*/
static void evhttp_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
evhttp_free((struct evhttp*)rsrc->ptr);
}
/*
* Destructor for evhttp_request resource
*/
static void evhttp_request_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
struct evhttp_request *r = (struct evhttp_request*)rsrc->ptr;
if (r->cb_arg != NULL)
{
zval_dtor(((php_httpevent*)(r->cb_arg))->r_cb);
FREE_ZVAL(((php_httpevent*)(r->cb_arg))->r_cb);
FREE_ZVAL(((php_httpevent*)(r->cb_arg))->res_httpevent);
free(r->cb_arg);
}
//php_printf("FFOO|\n");
//evhttp_request_free(r);
}
/*
* Destructor for evhttp_connection resource
*/
static void evhttp_connection_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
evhttp_connection_free((struct evhttp_connection*)rsrc->ptr);
}
/*
* Destructor for our evhttp_response resource
*/
static void evhttp_response_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
evhttp_response *r = (evhttp_response*)rsrc->ptr;
free(r->res_message);
if (r->res_body_len > 0)
{
free(r->res_body);
}
free(r);
}
/*
* Destructor for event resource
*/
static void event_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
struct event *e = (struct event*)rsrc->ptr;
int i;
if (event_initialized(e) == EVLIST_INIT)
{
if (e->ev_arg != NULL)
{
zval_dtor(((php_event*)(e->ev_arg))->cb);
FREE_ZVAL(((php_event*)(e->ev_arg))->cb);
FREE_ZVAL(((php_event*)(e->ev_arg))->flags);
if (IS_RESOURCE == Z_TYPE_P(((php_event*)(e->ev_arg))->stream))
zend_list_delete( Z_RESVAL_P(((php_event*)(e->ev_arg))->stream) );
free(e->ev_arg);
}
event_del(e);
}
free(e);
}
/*
* Generic event callback to call into user land
*/
void php_event_callback_handler(int fd, short ev, void *arg)
{
php_event *event = (php_event*)arg;
zval **params[3];
zval *retval = NULL;
//zval *z_stream;
//MAKE_STD_ZVAL(z_stream);
//ZVAL_RESOURCE(z_stream, php_stream_get_resource_id(event->stream));
//zend_list_addref(php_stream_get_resource_id(event->stream));
//php_debug_zval_dump(&(event->event));
params[0] = &(event->stream);
params[1] = &(event->flags);
params[2] = &(event->event);
/* callback into php */
if (call_user_function_ex(EG(function_table), NULL, event->cb, &retval, 3, params, 0, NULL TSRMLS_CC) == FAILURE)
{
php_error_docref(NULL TSRMLS_CC, E_ERROR, "Callback failed");
}
if (retval)
zval_ptr_dtor(&retval);
//zval_ptr_dtor(params[0]);
//zval_ptr_dtor(params[2]);
//zval_ptr_dtor(&z_stream);
//zend_list_delete(php_stream_get_resource_id(event->stream));
return;
}
PHP_FUNCTION(event_set)
{
struct event *e;
char *callable;
int event_flags;
int fd;
zval *e_res, *z_cb, *z_stream;
php_stream *stream;
php_event *event_args;
/* parse parameters */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rzlz", &e_res, &z_stream, &event_flags, &z_cb) == FAILURE)
{
RETURN_FALSE;
}
/* fetch event struct */
e = (struct event*) zend_fetch_resource(&e_res TSRMLS_CC, -1, PHP_EVENT_RES_NAME, NULL, 1, le_event);
if (e == NULL)
{
php_error_docref(NULL TSRMLS_CC, E_ERROR, "First argument must be a valid event resource");
RETURN_FALSE;
}
/* check signal vs stream */
if (IS_LONG == Z_TYPE_P(z_stream))
{
// we got a signal event. z_stream contains signal number
fd = Z_LVAL_P(z_stream);
}
else
{
/* fetch stream */
php_stream_from_zval(stream, &z_stream);
if (!stream)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid stream");
RETURN_FALSE;
}
if (FAILURE == php_stream_cast(stream, PHP_STREAM_AS_FD_FOR_SELECT, (void*)&fd, 1) || fd == -1)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Incompatible stream");
RETURN_FALSE;
}
/* set non-blocking and non-buffered to not let it step on our hands here */
php_stream_set_option(stream, PHP_STREAM_OPTION_BLOCKING, 0, NULL);
stream->flags |= PHP_STREAM_FLAG_NO_BUFFER;
}
#ifdef ZEND_ENGINE_2
if (!zend_make_callable(z_cb, &callable TSRMLS_CC))
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid callback: '%s'", callable);
return;
}
#endif
efree(callable);
/* setup event */
event_args = (php_event*)malloc(sizeof(php_event));
event_args->cb = z_cb;
ZVAL_ADDREF(event_args->cb);
MAKE_STD_ZVAL(event_args->flags);
ZVAL_LONG(event_args->flags, event_flags);
event_args->stream = z_stream;
event_args->event = e_res;
event_set(e, fd, event_flags, php_event_callback_handler, (void*)event_args);
RETURN_TRUE;
}
PHP_FUNCTION(event_add)
{
zval *e_res, *z_sec, *z_usec;
struct event *e;
struct timeval timeout;
int ret;
int argc;
argc = ZEND_NUM_ARGS();
/* parse parameters */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r|zz", &e_res, &z_sec, &z_usec) == FAILURE)
{
RETURN_FALSE;
}
/* fetch event struct */
e = (struct event*) zend_fetch_resource(&e_res TSRMLS_CC, -1, PHP_EVENT_RES_NAME, NULL, 1, le_event);
if (e == NULL)
{
php_error_docref(NULL TSRMLS_CC, E_ERROR, "First argument must be a valid event resource");
RETURN_FALSE;
}
/* add event to scheduler */
timeout.tv_sec = (argc > 1 && Z_TYPE_P(z_sec) == IS_LONG) ? Z_LVAL_P(z_sec) : 0;
timeout.tv_usec = (argc > 2 && Z_TYPE_P(z_usec) == IS_LONG) ? Z_LVAL_P(z_usec) : 0;
if (argc > 1)
ret = event_add(e, &timeout);
else
ret = event_add(e, 0);
/* check if it worked */
if (ret == 0)
{
RETURN_TRUE;
}
else
{
RETURN_FALSE;
}
}
PHP_FUNCTION(event_del)
{
zval *e_res;
struct event *e;
/* parse parameters */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &e_res) == FAILURE)
{
RETURN_FALSE;
}
/* fetch event struct */
e = (struct event*) zend_fetch_resource(&e_res TSRMLS_CC, -1, PHP_EVENT_RES_NAME, NULL, 1, le_event);
if (e == NULL)
{
php_error_docref(NULL TSRMLS_CC, E_ERROR, "First argument must be a valid event resource");
RETURN_FALSE;
}
/* remove event from scheduler */
if (event_del(e) == 0)
{
RETURN_TRUE;
}
else
{
RETURN_FALSE;
}
}
PHP_FUNCTION(event_free)
{
zval *e_res;
/* parse parameters */
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &e_res) == FAILURE)
{
RETURN_FALSE;
}
zval_dtor(e_res);
}
PHP_FUNCTION(evhttp_response_set)
{
long http_code;
char *content, *http_message;
int content_len, http_message_len;
evhttp_response *response;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sls", &content, &content_len, &http_code, &http_message, &http_message_len) == FAILURE)
{
RETURN_FALSE;
}
/* TODO: use evbuffer here, instead of passing string around in the struct */
response = malloc(sizeof(evhttp_response));
response->res_code = http_code;
response->res_message = strdup(http_message);
response->res_body_len = content_len;
if (content_len > 0)
{
response->res_body = malloc(content_len+1);
memcpy(response->res_body, content, content_len);
}
ZEND_REGISTER_RESOURCE(return_value, response, le_evhttp_response);
}
void php_callback_handler(struct evhttp_request *req, void *arg)
{
zval *cb;
zval *retval = NULL;
zval **params[1];
zval *req_resource;
cb = (zval*)arg;
int res;
struct evbuffer *buf;
evhttp_response *response;
char *str;
int str_len;
int res_id;
void *retval_res;
int retval_res_type;
/* pass the request as a php resource */
MAKE_STD_ZVAL(req_resource);
res_id = zend_register_resource(req_resource, req, le_evhttp_request);
params[0] = &req_resource;
res = call_user_function_ex(EG(function_table), NULL, cb, &retval, 1, params, 0, NULL TSRMLS_CC);
/* free resource */
req->cb_arg = NULL;
zend_list_delete(res_id);
FREE_ZVAL(req_resource);
if (!retval)
{
/* We got nothing back from user callback */
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Request callback returned nothing");
buf = evbuffer_new();
evhttp_send_reply(req, HTTP_SERVUNAVAIL, "ERR", buf);
return;
}
switch (retval->type)
{
case IS_RESOURCE:
/* the callback is allowed to return either a simple evbuffer, or
* a custom response (incl. response code/message) */
retval_res = zend_list_find(Z_RESVAL_P(retval), &retval_res_type);
if (retval_res_type == le_evbuffer)
{
buf = (struct evbuffer*) retval_res;
/* got a evbuffer back. send it! */
evhttp_send_reply(req, HTTP_OK, "OK", buf);
} else if (retval_res_type == le_evhttp_response) {
/* got a response resource back */
response = (evhttp_response *) retval_res;
buf = evbuffer_new();
if (response->res_body_len > 0)
{
evbuffer_add(buf, response->res_body, response->res_body_len);
}
evhttp_send_reply(req, response->res_code, response->res_message, buf);
} else {
/* We got the wrong resource type */
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Request callback returned illegal resource");
buf = evbuffer_new();
evhttp_send_reply(req, HTTP_SERVUNAVAIL, "ERR", buf);
}
break;
case IS_STRING:
/* return value was a string */
str = Z_STRVAL_P(retval);
str_len = Z_STRLEN_P(retval);
buf = evbuffer_new();
evbuffer_add(buf, str, str_len);
evhttp_send_reply(req, HTTP_OK, "OK", buf);
break;
default:
/* We got nothing back from user callback */
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Request callback returned wrong datatype");
buf = evbuffer_new();
evhttp_send_reply(req, HTTP_OK, "OK", buf);
}
zval_ptr_dtor(&retval);
evbuffer_free(buf);
return;
}
PHP_FUNCTION(evhttp_start)
{
struct evhttp *httpd;
char *listen_ip;
int port;
int listen_ip_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl", &listen_ip, &listen_ip_len, &port) == FAILURE)
{
RETURN_NULL();
}
httpd = evhttp_start(listen_ip, port);
if (!httpd)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Error binding httpd on %s port %d", listen_ip, port);
RETURN_FALSE;
}
/* Set timeout to a reasonably short value for performance [BB-MH] */
evhttp_set_timeout(httpd, 10);
ZEND_REGISTER_RESOURCE(return_value, httpd, le_evhttp);
}
PHP_FUNCTION(evhttp_set_gencb)
{
struct evhttp *httpd;
zval *res_httpd, *php_cb;
zval *cb;
char *callable = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rz", &res_httpd, &php_cb) == FAILURE)
{
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(httpd, struct evhttp*, &res_httpd, -1, PHP_EVHTTP_RES_NAME, le_evhttp);
#ifdef ZEND_ENGINE_2
if (!zend_make_callable(php_cb, &callable TSRMLS_CC))
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "function '%s' is not a valid callback", callable);
efree(callable);
return;
}
#endif
MAKE_STD_ZVAL(cb);
*(cb) = *php_cb;
zval_copy_ctor(cb);
evhttp_set_gencb(httpd, php_callback_handler, (void*)cb);
}
PHP_FUNCTION(evhttp_request_uri)
{
struct evhttp_request *req;
zval *res_req;
zval *z_uri;
const char *uri;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &res_req) == FAILURE)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not fetch resource");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(req, struct evhttp_request*, &res_req, -1, PHP_EVHTTP_REQUEST_RES_NAME, le_evhttp_request);
uri = evhttp_request_uri(req);
ZVAL_STRING(return_value, (char*)uri, 1);
return;
}
PHP_FUNCTION(evhttp_request_method)
{
struct evhttp_request *req;
zval *res_req;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &res_req) == FAILURE)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not fetch resource");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(req, struct evhttp_request*, &res_req, -1, PHP_EVHTTP_REQUEST_RES_NAME, le_evhttp_request);
/* replicate logic of libevent's internal method (evhttp_method), which isn't exposed in the library */
switch (req->type) {
case EVHTTP_REQ_GET:
RETURN_STRING("GET", 1);
case EVHTTP_REQ_POST:
RETURN_STRING("POST", 1);
case EVHTTP_REQ_HEAD:
RETURN_STRING("HEAD", 1);
case EVHTTP_REQ_PUT:
RETURN_STRING("PUT", 1);
case EVHTTP_REQ_DELETE:
RETURN_STRING("DELETE", 1);
case EVHTTP_REQ_OPTIONS:
RETURN_STRING("OPTIONS", 1);
case EVHTTP_REQ_TRACE:
RETURN_STRING("TRACE", 1);
case EVHTTP_REQ_CONNECT:
RETURN_STRING("CONNECT", 1);
default:
RETURN_NULL();
}
}
PHP_FUNCTION(evhttp_request_find_header)
{
struct evhttp_request *req;
zval *res_req;
const char *headervalue;
char *headername;
int headername_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs", &res_req, &headername, &headername_len) == FAILURE)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not fetch resource");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(req, struct evhttp_request*, &res_req, -1, PHP_EVHTTP_REQUEST_RES_NAME, le_evhttp_request);
if ((headervalue = evhttp_find_header(req->input_headers, headername)) == NULL)
{
/* header not found */
RETURN_NULL();
}
ZVAL_STRING(return_value, (char*)headervalue, 1);
return;
}
PHP_FUNCTION(evhttp_request_headers)
{
struct evhttp_request *req;
zval *res_req;
struct evkeyval *header;
struct evkeyvalq *q;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &res_req) == FAILURE)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not fetch resource");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(req, struct evhttp_request*, &res_req, -1, PHP_EVHTTP_REQUEST_RES_NAME, le_evhttp_request);
array_init(return_value);
q = req->input_headers;
TAILQ_FOREACH (header, q, next)
{
add_assoc_string(return_value, header->key, header->value, true);
}
return;
}
PHP_FUNCTION(evhttp_request_add_header)
{
struct evhttp_request *req;
zval *res_req;
char *headername, *headervalue;
int headername_len, headervalue_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rss", &res_req, &headername, &headername_len, &headervalue, &headervalue_len) == FAILURE)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "error reading parameters");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(req, struct evhttp_request*, &res_req, -1, PHP_EVHTTP_REQUEST_RES_NAME, le_evhttp_request);
if (evhttp_add_header(req->input_headers, headername, headervalue) != 0)
{
RETURN_FALSE;
}
RETURN_TRUE;
}
PHP_FUNCTION(evhttp_response_add_header)
{
struct evhttp_request *req;
zval *res_req;
char *headername, *headervalue;
int headername_len, headervalue_len;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rss", &res_req, &headername, &headername_len, &headervalue, &headervalue_len) == FAILURE)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "error reading parameters");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(req, struct evhttp_request*, &res_req, -1, PHP_EVHTTP_REQUEST_RES_NAME, le_evhttp_request);
// NOTE: only difference of response headers is below
if (evhttp_add_header(req->output_headers, headername, headervalue) != 0)
{
RETURN_FALSE;
}
RETURN_TRUE;
}
PHP_FUNCTION(evhttp_request_status)
{
struct evhttp_request *req;
zval *res_req;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &res_req) == FAILURE)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "error reading parameters");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(req, struct evhttp_request*, &res_req, -1, PHP_EVHTTP_REQUEST_RES_NAME, le_evhttp_request);
RETURN_LONG(req->response_code);
}
PHP_FUNCTION(evhttp_request_input_buffer)
{
struct evhttp_request *req;
zval *res_req;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &res_req) == FAILURE)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not fetch resource");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(req, struct evhttp_request*, &res_req, -1, PHP_EVHTTP_REQUEST_RES_NAME, le_evhttp_request);
ZEND_REGISTER_RESOURCE(return_value, req->input_buffer, le_evbuffer);
}
PHP_FUNCTION(evhttp_request_body)
{
struct evhttp_request *req;
zval *res_req;
int body_len;
char *body;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &res_req) == FAILURE)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not fetch resource");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(req, struct evhttp_request*, &res_req, -1, PHP_EVHTTP_REQUEST_RES_NAME, le_evhttp_request);
if (req->input_buffer == NULL || req->input_buffer->buffer == NULL || req->input_buffer->totallen == 0)
{
RETURN_FALSE;
}
body = emalloc(req->input_buffer->off+1);
memcpy(body, req->input_buffer->buffer, req->input_buffer->off+1);
body[req->input_buffer->off] = 0;
ZVAL_STRING(return_value, body, 0);
}
PHP_FUNCTION(evhttp_request_append_body)
{
struct evhttp_request *req;
zval *res_req;
int body_len;
char *body;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs", &res_req, &body, &body_len) == FAILURE)
{
php_error_docref(NULL TSRMLS_CC, E_WARNING, "error reading params");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE(req, struct evhttp_request*, &res_req, -1, PHP_EVHTTP_REQUEST_RES_NAME, le_evhttp_request);
if (req->output_buffer == NULL)
{
RETURN_FALSE;
}
if (evbuffer_add(req->output_buffer, body, body_len) != 0)
{
RETURN_FALSE;
}
RETURN_TRUE;
}
PHP_FUNCTION(evbuffer_new)
{
struct evbuffer *buf;
buf = evbuffer_new();