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/*
* Copyright © 2013-2015 Rinat Ibragimov
*
* This file is part of FreshPlayerPlugin.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "header_parser.h"
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
struct parsed_headers_s *
hp_parse_headers(const char *headers)
{
struct parsed_headers_s *ph = calloc(1, sizeof(*ph));
const char *delimiter = "\r\n";
char *headers_copy, *saveptr, *part;
unsigned int k;
if (headers == NULL) {
// all fields zeroed
return ph;
}
// count headers, determine http code
headers_copy = strdup(headers);
ph->cnt = 0;
ph->http_code = 200;
part = strtok_r(headers_copy, delimiter, &saveptr);
if (part) {
int major = 0, minor = 0, code = 0, ret;
ret = sscanf(part, "HTTP/%6d.%6d %6d", &major, &minor, &code);
if (ret >= 3) {
ph->http_code = code;
}
part = strtok_r(NULL, delimiter, &saveptr);
}
while (part) {
ph->cnt ++;
part = strtok_r(NULL, delimiter, &saveptr);
}
free(headers_copy);
// parse headers to name and value
headers_copy = strdup(headers);
if (ph->cnt > 0) {
ph->name = malloc(sizeof(char *) * ph->cnt);
ph->value = malloc(sizeof(char *) * ph->cnt);
}
part = strtok_r(headers_copy, delimiter, &saveptr);
// save status line
if (part) {
ph->status_line = strdup(part);
part = strtok_r(NULL, delimiter, &saveptr);
}
// save headers
k = 0;
while (part && k < ph->cnt) {
char *colon = strchr(part, ':');
if (colon) {
*colon = 0;
ph->name[k] = strdup(part);
char *value_start = colon + 1;
while (isspace(*value_start))
value_start ++;
ph->value[k] = strdup(value_start);
*colon = ':';
} else {
ph->name[k] = strdup(part);
ph->value[k] = strdup("");
}
part = strtok_r(NULL, delimiter, &saveptr);
k ++;
}
free(headers_copy);
return ph;
}
void
hp_free_parsed_headers(struct parsed_headers_s *ph)
{
for (unsigned int k = 0; k < ph->cnt; k ++) {
free(ph->name[k]);
free(ph->value[k]);
}
free(ph->name);
free(ph->value);
free(ph->status_line);
free(ph);
}
const char *
hp_get_header_value(struct parsed_headers_s *ph, const char *name)
{
for (unsigned int k = 0; k < ph->cnt; k ++) {
if (strcasecmp(ph->name[k], name) == 0)
return ph->value[k];
}
return NULL;
}
int
hp_header_exists(struct parsed_headers_s *ph, const char *name)
{
for (unsigned int k = 0; k < ph->cnt; k ++) {
if (strcasecmp(ph->name[k], name) == 0)
return 1;
}
return 0;
}
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