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#include "first.h"
/**
* the HTTP chunk-API
*
*
*/
#include "server.h"
#include "chunk.h"
#include "http_chunk.h"
#include "log.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
static void http_chunk_append_len(server *srv, connection *con, size_t len) {
buffer *b;
force_assert(NULL != srv);
b = srv->tmp_chunk_len;
buffer_string_set_length(b, 0);
buffer_append_uint_hex(b, len);
buffer_append_string_len(b, CONST_STR_LEN("\r\n"));
chunkqueue_append_buffer(con->write_queue, b);
}
void http_chunk_append_file(server *srv, connection *con, buffer *fn, off_t offset, off_t len) {
chunkqueue *cq;
force_assert(NULL != con);
if (0 == len) return;
cq = con->write_queue;
if (con->response.transfer_encoding & HTTP_TRANSFER_ENCODING_CHUNKED) {
http_chunk_append_len(srv, con, len);
}
chunkqueue_append_file(cq, fn, offset, len);
if (con->response.transfer_encoding & HTTP_TRANSFER_ENCODING_CHUNKED) {
chunkqueue_append_mem(cq, CONST_STR_LEN("\r\n"));
}
}
void http_chunk_append_buffer(server *srv, connection *con, buffer *mem) {
chunkqueue *cq;
force_assert(NULL != con);
if (buffer_string_is_empty(mem)) return;
cq = con->write_queue;
if (con->response.transfer_encoding & HTTP_TRANSFER_ENCODING_CHUNKED) {
http_chunk_append_len(srv, con, buffer_string_length(mem));
}
chunkqueue_append_buffer(cq, mem);
if (con->response.transfer_encoding & HTTP_TRANSFER_ENCODING_CHUNKED) {
chunkqueue_append_mem(cq, CONST_STR_LEN("\r\n"));
}
}
void http_chunk_append_mem(server *srv, connection *con, const char * mem, size_t len) {
chunkqueue *cq;
force_assert(NULL != con);
force_assert(NULL != mem || 0 == len);
if (NULL == mem || 0 == len) return;
cq = con->write_queue;
if (con->response.transfer_encoding & HTTP_TRANSFER_ENCODING_CHUNKED) {
http_chunk_append_len(srv, con, len);
}
chunkqueue_append_mem(cq, mem, len);
if (con->response.transfer_encoding & HTTP_TRANSFER_ENCODING_CHUNKED) {
chunkqueue_append_mem(cq, CONST_STR_LEN("\r\n"));
}
}
void http_chunk_close(server *srv, connection *con) {
UNUSED(srv);
force_assert(NULL != con);
if (con->response.transfer_encoding & HTTP_TRANSFER_ENCODING_CHUNKED) {
chunkqueue_append_mem(con->write_queue, CONST_STR_LEN("0\r\n\r\n"));
}
}
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