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/* Copyright 2002-2004 Justin Erenkrantz and Greg Stein
*
* Licensed 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 <apr_pools.h>
#include <apr_strings.h>
#include "serf.h"
#include "serf_bucket_util.h"
typedef struct {
const char *method;
const char *uri;
serf_bucket_t *headers;
serf_bucket_t *body;
apr_int64_t len;
} request_context_t;
#define LENGTH_UNKNOWN ((apr_int64_t)-1)
serf_bucket_t *serf_bucket_request_create(
const char *method,
const char *URI,
serf_bucket_t *body,
serf_bucket_alloc_t *allocator)
{
request_context_t *ctx;
ctx = serf_bucket_mem_alloc(allocator, sizeof(*ctx));
ctx->method = method;
ctx->uri = URI;
ctx->headers = serf_bucket_headers_create(allocator);
ctx->body = body;
ctx->len = LENGTH_UNKNOWN;
return serf_bucket_create(&serf_bucket_type_request, allocator, ctx);
}
void serf_bucket_request_set_CL(
serf_bucket_t *bucket,
apr_int64_t len)
{
request_context_t *ctx = (request_context_t *)bucket->data;
ctx->len = len;
}
serf_bucket_t *serf_bucket_request_get_headers(
serf_bucket_t *bucket)
{
return ((request_context_t *)bucket->data)->headers;
}
void serf_bucket_request_set_root(
serf_bucket_t *bucket,
const char *root_url)
{
request_context_t *ctx = (request_context_t *)bucket->data;
/* If uri is already absolute, don't change it. */
if (ctx->uri[0] != '/')
return;
/* If uri is '/' replace it with root_url. */
if (ctx->uri[1] == '\0')
ctx->uri = root_url;
else
ctx->uri =
apr_pstrcat(serf_bucket_allocator_get_pool(bucket->allocator),
root_url,
ctx->uri,
NULL);
}
static void serialize_data(serf_bucket_t *bucket)
{
request_context_t *ctx = bucket->data;
serf_bucket_t *new_bucket;
const char *new_data;
struct iovec iov[4];
apr_size_t nbytes;
/* Serialize the request-line and headers into one mother string,
* and wrap a bucket around it.
*/
iov[0].iov_base = (char*)ctx->method;
iov[0].iov_len = strlen(ctx->method);
iov[1].iov_base = " ";
iov[1].iov_len = sizeof(" ") - 1;
iov[2].iov_base = (char*)ctx->uri;
iov[2].iov_len = strlen(ctx->uri);
iov[3].iov_base = " HTTP/1.1\r\n";
iov[3].iov_len = sizeof(" HTTP/1.1\r\n") - 1;
/* ### pool allocation! */
new_data = apr_pstrcatv(serf_bucket_allocator_get_pool(bucket->allocator),
iov, 4, &nbytes);
/* Create a new bucket for this string. A free function isn't needed
* since the string is residing in a pool.
*/
new_bucket = SERF_BUCKET_SIMPLE_STRING_LEN(new_data, nbytes,
bucket->allocator);
/* Build up the new bucket structure.
*
* Note that self needs to become an aggregate bucket so that a
* pointer to self still represents the "right" data.
*/
serf_bucket_aggregate_become(bucket);
/* Insert the two buckets. */
serf_bucket_aggregate_append(bucket, new_bucket);
serf_bucket_aggregate_append(bucket, ctx->headers);
/* If we know the length, then use C-L and the raw body. Otherwise,
use chunked encoding for the request. */
if (ctx->len != LENGTH_UNKNOWN) {
char buf[30];
sprintf(buf, "%" APR_INT64_T_FMT, ctx->len);
serf_bucket_headers_set(ctx->headers, "Content-Length", buf);
if (ctx->body != NULL)
serf_bucket_aggregate_append(bucket, ctx->body);
}
else if (ctx->body != NULL) {
/* Morph the body bucket to a chunked encoding bucket for now. */
serf_bucket_headers_setn(ctx->headers, "Transfer-Encoding", "chunked");
ctx->body = serf_bucket_chunk_create(ctx->body, bucket->allocator);
serf_bucket_aggregate_append(bucket, ctx->body);
}
/* Our private context is no longer needed, and is not referred to by
* any existing bucket. Toss it.
*/
serf_bucket_mem_free(bucket->allocator, ctx);
}
static apr_status_t serf_request_read(serf_bucket_t *bucket,
apr_size_t requested,
const char **data, apr_size_t *len)
{
/* Seralize our private data into a new aggregate bucket. */
serialize_data(bucket);
/* Delegate to the "new" aggregate bucket to do the read. */
return serf_bucket_read(bucket, requested, data, len);
}
static apr_status_t serf_request_readline(serf_bucket_t *bucket,
int acceptable, int *found,
const char **data, apr_size_t *len)
{
/* Seralize our private data into a new aggregate bucket. */
serialize_data(bucket);
/* Delegate to the "new" aggregate bucket to do the readline. */
return serf_bucket_readline(bucket, acceptable, found, data, len);
}
static apr_status_t serf_request_read_iovec(serf_bucket_t *bucket,
apr_size_t requested,
int vecs_size,
struct iovec *vecs,
int *vecs_used)
{
/* Seralize our private data into a new aggregate bucket. */
serialize_data(bucket);
/* Delegate to the "new" aggregate bucket to do the read. */
return serf_bucket_read_iovec(bucket, requested,
vecs_size, vecs, vecs_used);
}
static apr_status_t serf_request_peek(serf_bucket_t *bucket,
const char **data,
apr_size_t *len)
{
/* Seralize our private data into a new aggregate bucket. */
serialize_data(bucket);
/* Delegate to the "new" aggregate bucket to do the peek. */
return serf_bucket_peek(bucket, data, len);
}
void serf_bucket_request_become(
serf_bucket_t *bucket,
const char *method,
const char *uri,
serf_bucket_t *body)
{
request_context_t *ctx;
ctx = serf_bucket_mem_alloc(bucket->allocator, sizeof(*ctx));
ctx->method = method;
ctx->uri = uri;
ctx->headers = serf_bucket_headers_create(bucket->allocator);
ctx->body = body;
bucket->type = &serf_bucket_type_request;
bucket->data = ctx;
/* The allocator remains the same. */
}
const serf_bucket_type_t serf_bucket_type_request = {
"REQUEST",
serf_request_read,
serf_request_readline,
serf_request_read_iovec,
serf_default_read_for_sendfile,
serf_default_read_bucket,
serf_request_peek,
serf_default_destroy_and_data,
};
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