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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <assert.h>
#include <apr_lib.h>
#include <apr_strings.h>
#include <apr_buckets.h>
#include "md_http.h"
#include "md_log.h"
#include "md_util.h"
struct md_http_t {
apr_pool_t *pool;
apr_bucket_alloc_t *bucket_alloc;
int next_id;
apr_off_t resp_limit;
md_http_impl_t *impl;
void *impl_data; /* to be used by the implementation */
const char *user_agent;
const char *proxy_url;
const char *unix_socket_path;
md_http_timeouts_t timeout;
const char *ca_file;
};
static md_http_impl_t *cur_impl;
static int cur_init_done;
void md_http_use_implementation(md_http_impl_t *impl)
{
if (cur_impl != impl) {
cur_impl = impl;
cur_init_done = 0;
}
}
static apr_status_t http_cleanup(void *data)
{
md_http_t *http = data;
if (http && http->impl && http->impl->cleanup) {
http->impl->cleanup(http, http->pool);
}
return APR_SUCCESS;
}
apr_status_t md_http_create(md_http_t **phttp, apr_pool_t *p, const char *user_agent,
const char *proxy_url)
{
md_http_t *http;
apr_status_t rv = APR_SUCCESS;
if (!cur_impl) {
*phttp = NULL;
return APR_ENOTIMPL;
}
if (!cur_init_done) {
if (APR_SUCCESS == (rv = cur_impl->init())) {
cur_init_done = 1;
}
else {
return rv;
}
}
http = apr_pcalloc(p, sizeof(*http));
http->pool = p;
http->impl = cur_impl;
http->user_agent = apr_pstrdup(p, user_agent);
http->proxy_url = proxy_url? apr_pstrdup(p, proxy_url) : NULL;
http->bucket_alloc = apr_bucket_alloc_create(p);
if (!http->bucket_alloc) {
return APR_EGENERAL;
}
apr_pool_cleanup_register(p, http, http_cleanup, apr_pool_cleanup_null);
*phttp = http;
return APR_SUCCESS;
}
apr_status_t md_http_clone(md_http_t **phttp,
apr_pool_t *p, md_http_t *source_http)
{
apr_status_t rv;
rv = md_http_create(phttp, p, source_http->user_agent, source_http->proxy_url);
if (APR_SUCCESS == rv) {
(*phttp)->resp_limit = source_http->resp_limit;
(*phttp)->timeout = source_http->timeout;
if (source_http->unix_socket_path) {
(*phttp)->unix_socket_path = apr_pstrdup(p, source_http->unix_socket_path);
}
if (source_http->ca_file) {
(*phttp)->ca_file = apr_pstrdup(p, source_http->ca_file);
}
}
return rv;
}
void md_http_set_impl_data(md_http_t *http, void *data)
{
http->impl_data = data;
}
void *md_http_get_impl_data(md_http_t *http)
{
return http->impl_data;
}
void md_http_set_response_limit(md_http_t *http, apr_off_t resp_limit)
{
http->resp_limit = resp_limit;
}
void md_http_set_timeout_default(md_http_t *http, apr_time_t timeout)
{
http->timeout.overall = timeout;
}
void md_http_set_timeout(md_http_request_t *req, apr_time_t timeout)
{
req->timeout.overall = timeout;
}
void md_http_set_connect_timeout_default(md_http_t *http, apr_time_t timeout)
{
http->timeout.connect = timeout;
}
void md_http_set_connect_timeout(md_http_request_t *req, apr_time_t timeout)
{
req->timeout.connect = timeout;
}
void md_http_set_stalling_default(md_http_t *http, long bytes_per_sec, apr_time_t timeout)
{
http->timeout.stall_bytes_per_sec = bytes_per_sec;
http->timeout.stalled = timeout;
}
void md_http_set_stalling(md_http_request_t *req, long bytes_per_sec, apr_time_t timeout)
{
req->timeout.stall_bytes_per_sec = bytes_per_sec;
req->timeout.stalled = timeout;
}
void md_http_set_ca_file(md_http_t *http, const char *ca_file)
{
http->ca_file = ca_file;
}
void md_http_set_unix_socket_path(md_http_t *http, const char *path)
{
http->unix_socket_path = path;
}
static apr_status_t req_set_body(md_http_request_t *req, const char *content_type,
apr_bucket_brigade *body, apr_off_t body_len,
int detect_len)
{
apr_status_t rv = APR_SUCCESS;
if (body && detect_len) {
rv = apr_brigade_length(body, 1, &body_len);
if (rv != APR_SUCCESS) {
return rv;
}
}
req->body = body;
req->body_len = body? body_len : 0;
if (content_type) {
apr_table_set(req->headers, "Content-Type", content_type);
}
else {
apr_table_unset(req->headers, "Content-Type");
}
return rv;
}
static apr_status_t req_set_body_data(md_http_request_t *req, const char *content_type,
const md_data_t *body)
{
apr_bucket_brigade *bbody = NULL;
apr_status_t rv;
if (body && body->len > 0) {
bbody = apr_brigade_create(req->pool, req->http->bucket_alloc);
rv = apr_brigade_write(bbody, NULL, NULL, body->data, body->len);
if (rv != APR_SUCCESS) {
return rv;
}
}
return req_set_body(req, content_type, bbody, body? (apr_off_t)body->len : 0, 0);
}
static apr_status_t req_create(md_http_request_t **preq, md_http_t *http,
const char *method, const char *url,
struct apr_table_t *headers)
{
md_http_request_t *req = NULL;
apr_pool_t *pool;
apr_status_t rv;
rv = apr_pool_create(&pool, http->pool);
if (rv != APR_SUCCESS) {
return rv;
}
apr_pool_tag(pool, "md_http_req");
req = apr_pcalloc(pool, sizeof(*req));
req->pool = pool;
req->id = http->next_id++;
req->bucket_alloc = http->bucket_alloc;
req->http = http;
req->method = method;
req->url = url;
req->headers = headers? apr_table_copy(req->pool, headers) : apr_table_make(req->pool, 5);
req->resp_limit = http->resp_limit;
req->user_agent = http->user_agent;
req->proxy_url = http->proxy_url;
req->timeout = http->timeout;
req->ca_file = http->ca_file;
req->unix_socket_path = http->unix_socket_path;
*preq = req;
return rv;
}
void md_http_req_destroy(md_http_request_t *req)
{
if (req->internals) {
req->http->impl->req_cleanup(req);
req->internals = NULL;
}
apr_pool_destroy(req->pool);
}
void md_http_set_on_status_cb(md_http_request_t *req, md_http_status_cb *cb, void *baton)
{
req->cb.on_status = cb;
req->cb.on_status_data = baton;
}
void md_http_set_on_response_cb(md_http_request_t *req, md_http_response_cb *cb, void *baton)
{
req->cb.on_response = cb;
req->cb.on_response_data = baton;
}
apr_status_t md_http_perform(md_http_request_t *req)
{
return req->http->impl->perform(req);
}
typedef struct {
md_http_next_req *nextreq;
void *baton;
} nextreq_proxy_t;
static apr_status_t proxy_nextreq(md_http_request_t **preq, void *baton,
md_http_t *http, int in_flight)
{
nextreq_proxy_t *proxy = baton;
return proxy->nextreq(preq, proxy->baton, http, in_flight);
}
apr_status_t md_http_multi_perform(md_http_t *http, md_http_next_req *nextreq, void *baton)
{
nextreq_proxy_t proxy;
proxy.nextreq = nextreq;
proxy.baton = baton;
return http->impl->multi_perform(http, http->pool, proxy_nextreq, &proxy);
}
apr_status_t md_http_GET_create(md_http_request_t **preq, md_http_t *http, const char *url,
struct apr_table_t *headers)
{
md_http_request_t *req;
apr_status_t rv;
rv = req_create(&req, http, "GET", url, headers);
*preq = (APR_SUCCESS == rv)? req : NULL;
return rv;
}
apr_status_t md_http_HEAD_create(md_http_request_t **preq, md_http_t *http, const char *url,
struct apr_table_t *headers)
{
md_http_request_t *req;
apr_status_t rv;
rv = req_create(&req, http, "HEAD", url, headers);
*preq = (APR_SUCCESS == rv)? req : NULL;
return rv;
}
apr_status_t md_http_POST_create(md_http_request_t **preq, md_http_t *http, const char *url,
struct apr_table_t *headers, const char *content_type,
struct apr_bucket_brigade *body, int detect_len)
{
md_http_request_t *req;
apr_status_t rv;
rv = req_create(&req, http, "POST", url, headers);
if (APR_SUCCESS == rv) {
rv = req_set_body(req, content_type, body, -1, detect_len);
}
*preq = (APR_SUCCESS == rv)? req : NULL;
return rv;
}
apr_status_t md_http_POSTd_create(md_http_request_t **preq, md_http_t *http, const char *url,
struct apr_table_t *headers, const char *content_type,
const struct md_data_t *body)
{
md_http_request_t *req;
apr_status_t rv;
rv = req_create(&req, http, "POST", url, headers);
if (APR_SUCCESS != rv) goto cleanup;
rv = req_set_body_data(req, content_type, body);
cleanup:
if (APR_SUCCESS == rv) {
*preq = req;
}
else {
*preq = NULL;
if (req) md_http_req_destroy(req);
}
return rv;
}
apr_status_t md_http_GET_perform(struct md_http_t *http,
const char *url, struct apr_table_t *headers,
md_http_response_cb *cb, void *baton)
{
md_http_request_t *req;
apr_status_t rv;
rv = md_http_GET_create(&req, http, url, headers);
if (APR_SUCCESS == rv) md_http_set_on_response_cb(req, cb, baton);
return (APR_SUCCESS == rv)? md_http_perform(req) : rv;
}
apr_status_t md_http_HEAD_perform(struct md_http_t *http,
const char *url, struct apr_table_t *headers,
md_http_response_cb *cb, void *baton)
{
md_http_request_t *req;
apr_status_t rv;
rv = md_http_HEAD_create(&req, http, url, headers);
if (APR_SUCCESS == rv) md_http_set_on_response_cb(req, cb, baton);
return (APR_SUCCESS == rv)? md_http_perform(req) : rv;
}
apr_status_t md_http_POST_perform(struct md_http_t *http, const char *url,
struct apr_table_t *headers, const char *content_type,
apr_bucket_brigade *body, int detect_len,
md_http_response_cb *cb, void *baton)
{
md_http_request_t *req;
apr_status_t rv;
rv = md_http_POST_create(&req, http, url, headers, content_type, body, detect_len);
if (APR_SUCCESS == rv) md_http_set_on_response_cb(req, cb, baton);
return (APR_SUCCESS == rv)? md_http_perform(req) : rv;
}
apr_status_t md_http_POSTd_perform(md_http_t *http, const char *url,
struct apr_table_t *headers, const char *content_type,
const md_data_t *body,
md_http_response_cb *cb, void *baton)
{
md_http_request_t *req;
apr_status_t rv;
rv = md_http_POSTd_create(&req, http, url, headers, content_type, body);
if (APR_SUCCESS == rv) md_http_set_on_response_cb(req, cb, baton);
return (APR_SUCCESS == rv)? md_http_perform(req) : rv;
}
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