mirror of
https://github.com/mpv-player/mpv
synced 2024-12-16 03:45:23 +00:00
fc8277500b
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3786 b3059339-0415-0410-9bf9-f77b7e298cf2
346 lines
9.1 KiB
C
346 lines
9.1 KiB
C
/*
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* HTTP Helper
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* by Bertrand Baudet <bertrand_baudet@yahoo.com>
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* (C) 2001, MPlayer team.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "http.h"
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HTTP_header_t *
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http_new_header() {
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HTTP_header_t *http_hdr;
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http_hdr = (HTTP_header_t*)malloc(sizeof(HTTP_header_t));
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if( http_hdr==NULL ) return NULL;
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memset( http_hdr, 0, sizeof(HTTP_header_t) );
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return http_hdr;
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}
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void
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http_free( HTTP_header_t *http_hdr ) {
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HTTP_field_t *field, *field2free;
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if( http_hdr==NULL ) return;
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if( http_hdr->protocol!=NULL ) free( http_hdr->protocol );
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if( http_hdr->uri!=NULL ) free( http_hdr->uri );
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if( http_hdr->reason_phrase!=NULL ) free( http_hdr->reason_phrase );
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if( http_hdr->body!=NULL ) free( http_hdr->body );
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if( http_hdr->field_search!=NULL ) free( http_hdr->field_search );
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if( http_hdr->method!=NULL ) free( http_hdr->method );
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if( http_hdr->buffer!=NULL ) free( http_hdr->buffer );
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field = http_hdr->first_field;
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while( field!=NULL ) {
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field2free = field;
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field = field->next;
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free( field2free );
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}
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free( http_hdr );
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http_hdr = NULL;
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}
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int
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http_response_append( HTTP_header_t *http_hdr, char *response, int length ) {
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char *ptr = NULL;
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if( http_hdr==NULL || response==NULL || length<0 ) return -1;
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ptr = (char*)malloc( http_hdr->buffer_size+length );
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if( ptr==NULL ) {
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printf("Memory allocation failed\n");
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return -1;
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}
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if( http_hdr->buffer_size==0 ) {
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// Buffer empty, copy response into it.
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memcpy( ptr, response, length );
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http_hdr->buffer_size = length;
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} else {
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// Buffer not empty, grow buffer, copy and append the response.
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memcpy( ptr, http_hdr->buffer, http_hdr->buffer_size );
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free( http_hdr->buffer );
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memcpy( ptr+http_hdr->buffer_size, response, length );
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http_hdr->buffer_size += length;
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}
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http_hdr->buffer = ptr;
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return http_hdr->buffer_size;
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}
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int
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http_is_header_entire( HTTP_header_t *http_hdr ) {
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if( http_hdr==NULL ) return -1;
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if( strstr(http_hdr->buffer, "\r\n\r\n")==NULL &&
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strstr(http_hdr->buffer, "\n\n")==NULL ) return 0;
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return 1;
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}
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int
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http_response_parse( HTTP_header_t *http_hdr ) {
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char *hdr_ptr, *ptr;
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char *field=NULL;
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int pos_hdr_sep, len;
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if( http_hdr==NULL ) return -1;
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if( http_hdr->is_parsed ) return 0;
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// Get the protocol
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hdr_ptr = strstr( http_hdr->buffer, " " );
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if( hdr_ptr==NULL ) {
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printf("Malformed answer. No space separator found.\n");
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return -1;
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}
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len = hdr_ptr-http_hdr->buffer;
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http_hdr->protocol = (char*)malloc(len+1);
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if( http_hdr->protocol==NULL ) {
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printf("Memory allocation failed\n");
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return -1;
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}
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strncpy( http_hdr->protocol, http_hdr->buffer, len );
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http_hdr->protocol[len]='\0';
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if( !strncasecmp( http_hdr->protocol, "HTTP", 4) ) {
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if( sscanf( http_hdr->protocol+5,"1.%d", &(http_hdr->http_minor_version) )!=1 ) {
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printf("Malformed answer. Unable to get HTTP minor version.\n");
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return -1;
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}
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}
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// Get the status code
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if( sscanf( ++hdr_ptr, "%d", &(http_hdr->status_code) )!=1 ) {
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printf("Malformed answer. Unable to get status code.\n");
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return -1;
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}
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hdr_ptr += 4;
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// Get the reason phrase
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ptr = strstr( hdr_ptr, "\n" );
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if( hdr_ptr==NULL ) {
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printf("Malformed answer. Unable to get the reason phrase.\n");
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return -1;
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}
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len = ptr-hdr_ptr;
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http_hdr->reason_phrase = (char*)malloc(len+1);
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if( http_hdr->reason_phrase==NULL ) {
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printf("Memory allocation failed\n");
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return -1;
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}
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strncpy( http_hdr->reason_phrase, hdr_ptr, len );
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http_hdr->reason_phrase[len]='\0';
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// Set the position of the header separator: \r\n\r\n
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ptr = strstr( http_hdr->buffer, "\r\n\r\n" );
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if( ptr==NULL ) {
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ptr = strstr( http_hdr->buffer, "\n\n" );
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if( ptr==NULL ) {
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printf("Header may be incomplete. No CRLF CRLF found.\n");
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return -1;
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}
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}
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pos_hdr_sep = ptr-http_hdr->buffer;
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// Point to the first line after the method line.
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hdr_ptr = strstr( http_hdr->buffer, "\n" )+1;
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do {
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ptr = hdr_ptr;
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while( *ptr!='\r' && *ptr!='\n' ) ptr++;
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len = ptr-hdr_ptr;
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field = (char*)realloc(field, len+1);
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if( field==NULL ) {
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printf("Memory allocation failed\n");
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return -1;
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}
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strncpy( field, hdr_ptr, len );
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field[len]='\0';
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http_set_field( http_hdr, field );
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hdr_ptr = ptr+((*ptr=='\r')?2:1);
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} while( hdr_ptr<(http_hdr->buffer+pos_hdr_sep) );
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if( field!=NULL ) free( field );
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if( pos_hdr_sep+4<http_hdr->buffer_size ) {
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// Response has data!
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int data_length = http_hdr->buffer_size-(pos_hdr_sep+4);
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http_hdr->body = (char*)malloc( data_length );
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if( http_hdr->body==NULL ) {
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printf("Memory allocation failed\n");
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return -1;
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}
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memcpy( http_hdr->body, http_hdr->buffer+pos_hdr_sep+4, data_length );
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http_hdr->body_size = data_length;
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}
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http_hdr->is_parsed = 1;
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return 0;
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}
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char *
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http_build_request( HTTP_header_t *http_hdr ) {
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char *ptr, *uri=NULL;
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int len;
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HTTP_field_t *field;
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if( http_hdr==NULL ) return NULL;
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if( http_hdr->method==NULL ) http_set_method( http_hdr, "GET");
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if( http_hdr->uri==NULL ) http_set_uri( http_hdr, "/");
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else {
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uri = (char*)malloc(strlen(http_hdr->uri)*2);
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if( uri==NULL ) {
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printf("Memory allocation failed\n");
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return NULL;
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}
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url_escape_string( uri, http_hdr->uri );
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}
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//**** Compute the request length
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// Add the Method line
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len = strlen(http_hdr->method)+strlen(uri)+12;
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// Add the fields
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field = http_hdr->first_field;
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while( field!=NULL ) {
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len += strlen(field->field_name)+2;
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field = field->next;
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}
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// Add the CRLF
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len += 2;
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// Add the body
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if( http_hdr->body!=NULL ) {
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len += http_hdr->body_size;
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}
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// Free the buffer if it was previously used
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if( http_hdr->buffer!=NULL ) {
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free( http_hdr->buffer );
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http_hdr->buffer = NULL;
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}
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http_hdr->buffer = (char*)malloc(len+1);
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if( http_hdr->buffer==NULL ) {
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printf("Memory allocation failed\n");
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return NULL;
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}
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http_hdr->buffer_size = len;
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//*** Building the request
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ptr = http_hdr->buffer;
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// Add the method line
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ptr += sprintf( ptr, "%s %s HTTP/1.%d\r\n", http_hdr->method, uri, http_hdr->http_minor_version );
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field = http_hdr->first_field;
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// Add the field
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while( field!=NULL ) {
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ptr += sprintf( ptr, "%s\r\n", field->field_name );
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field = field->next;
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}
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ptr += sprintf( ptr, "\r\n" );
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// Add the body
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if( http_hdr->body!=NULL ) {
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memcpy( ptr, http_hdr->body, http_hdr->body_size );
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}
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if( uri ) free( uri );
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return http_hdr->buffer;
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}
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char *
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http_get_field( HTTP_header_t *http_hdr, const char *field_name ) {
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if( http_hdr==NULL || field_name==NULL ) return NULL;
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http_hdr->field_search_pos = http_hdr->first_field;
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http_hdr->field_search = (char*)realloc( http_hdr->field_search, strlen(field_name)+1 );
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if( http_hdr->field_search==NULL ) {
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printf("Memory allocation failed\n");
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return NULL;
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}
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strcpy( http_hdr->field_search, field_name );
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return http_get_next_field( http_hdr );
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}
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char *
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http_get_next_field( HTTP_header_t *http_hdr ) {
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char *ptr;
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int i;
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HTTP_field_t *field;
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if( http_hdr==NULL ) return NULL;
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field = http_hdr->field_search_pos;
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while( field!=NULL ) {
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ptr = strstr( field->field_name, ":" );
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if( ptr==NULL ) return NULL;
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if( !strncasecmp( field->field_name, http_hdr->field_search, ptr-(field->field_name) ) ) {
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ptr++; // Skip the column
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while( ptr[0]==' ' ) ptr++; // Skip the spaces if there is some
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http_hdr->field_search_pos = field->next;
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return ptr; // return the value without the field name
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}
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field = field->next;
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}
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return NULL;
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}
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void
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http_set_field( HTTP_header_t *http_hdr, const char *field_name ) {
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HTTP_field_t *new_field;
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if( http_hdr==NULL || field_name==NULL ) return;
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new_field = (HTTP_field_t*)malloc(sizeof(HTTP_field_t));
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if( new_field==NULL ) {
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printf("Memory allocation failed\n");
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return;
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}
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new_field->next = NULL;
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new_field->field_name = (char*)malloc(strlen(field_name)+1);
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if( new_field->field_name==NULL ) {
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printf("Memory allocation failed\n");
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return;
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}
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strcpy( new_field->field_name, field_name );
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if( http_hdr->last_field==NULL ) {
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http_hdr->first_field = new_field;
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} else {
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http_hdr->last_field->next = new_field;
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}
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http_hdr->last_field = new_field;
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http_hdr->field_nb++;
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}
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void
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http_set_method( HTTP_header_t *http_hdr, const char *method ) {
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if( http_hdr==NULL || method==NULL ) return;
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http_hdr->method = (char*)malloc(strlen(method)+1);
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if( http_hdr->method==NULL ) {
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printf("Memory allocation failed\n");
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return;
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}
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strcpy( http_hdr->method, method );
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}
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void
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http_set_uri( HTTP_header_t *http_hdr, const char *uri ) {
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if( http_hdr==NULL || uri==NULL ) return;
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http_hdr->uri = (char*)malloc(strlen(uri)+1);
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if( http_hdr->uri==NULL ) {
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printf("Memory allocation failed\n");
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return;
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}
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strcpy( http_hdr->uri, uri );
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}
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void
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http_debug_hdr( HTTP_header_t *http_hdr ) {
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HTTP_field_t *field;
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int i = 0;
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if( http_hdr==NULL ) return;
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printf("protocol: %s\n", http_hdr->protocol );
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printf("http minor version: %d\n", http_hdr->http_minor_version );
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printf("uri: %s\n", http_hdr->uri );
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printf("method: %s\n", http_hdr->method );
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printf("status code: %d\n", http_hdr->status_code );
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printf("reason phrase: %s\n", http_hdr->reason_phrase );
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printf("Fields:\n");
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field = http_hdr->first_field;
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while( field!=NULL ) {
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printf(" %d - %s\n", i++, field->field_name );
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field = field->next;
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}
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}
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