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/*
* HTTP Cookies
* Reads Netscape and Mozilla cookies.txt files
*
* Copyright (c) 2003 Dave Lambley <mplayer@davel.me.uk>
*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <dirent.h>
#include <inttypes.h>
#include "osdep/io.h"
#include "options/options.h"
#include "cookies.h"
#include "common/msg.h"
#define MAX_COOKIES 20
typedef struct cookie_list_type {
char *name;
char *value;
char *domain;
char *path;
int secure;
struct cookie_list_type *next;
} cookie_list_t;
/* Like strdup, but stops at anything <31. */
static char *col_dup(void *talloc_ctx, const char *src)
{
int length = 0;
while (src[length] > 31)
length++;
return talloc_strndup(talloc_ctx, src, length);
}
/* Finds the start of all the columns */
static int parse_line(char **ptr, char *cols[7])
{
int col;
cols[0] = *ptr;
for (col = 1; col < 7; col++) {
for (; (**ptr) > 31; (*ptr)++);
if (**ptr == 0)
return 0;
(*ptr)++;
if ((*ptr)[-1] != 9)
return 0;
cols[col] = (*ptr);
}
return 1;
}
/* Loads a file into RAM */
static char *load_file(struct mp_log *log, const char *filename, int64_t * length)
{
int fd;
char *buffer = NULL;
mp_verbose(log, "Loading cookie file: %s\n", filename);
fd = open(filename, O_RDONLY | O_CLOEXEC);
if (fd < 0) {
mp_verbose(log, "Could not open");
goto err_out;
}
*length = lseek(fd, 0, SEEK_END);
if (*length < 0) {
mp_verbose(log, "Could not find EOF");
goto err_out;
}
if (*length > SIZE_MAX - 1) {
mp_verbose(log, "File too big, could not malloc.");
goto err_out;
}
lseek(fd, 0, SEEK_SET);
if (!(buffer = malloc(*length + 1))) {
mp_verbose(log, "Could not malloc.");
goto err_out;
}
if (read(fd, buffer, *length) != *length) {
mp_verbose(log, "Read is behaving funny.");
goto err_out;
}
close(fd);
buffer[*length] = 0;
return buffer;
err_out:
if (fd != -1) close(fd);
free(buffer);
return NULL;
}
/* Loads a cookies.txt file into a linked list. */
static struct cookie_list_type *load_cookies_from(void *ctx,
struct mp_log *log,
const char *filename)
{
char *ptr, *file;
int64_t length;
ptr = file = load_file(log, filename, &length);
if (!ptr)
return NULL;
struct cookie_list_type *list = NULL;
while (*ptr) {
char *cols[7];
if (parse_line(&ptr, cols)) {
struct cookie_list_type *new;
new = talloc_zero(ctx, cookie_list_t);
new->name = col_dup(new, cols[5]);
new->value = col_dup(new, cols[6]);
new->path = col_dup(new, cols[2]);
new->domain = col_dup(new, cols[0]);
new->secure = (*(cols[3]) == 't') || (*(cols[3]) == 'T');
new->next = list;
list = new;
}
}
free(file);
return list;
}
// Return a cookies string as expected by lavf (libavformat/http.c). The format
// is like a Set-Cookie header (http://curl.haxx.se/rfc/cookie_spec.html),
// separated by newlines.
char *cookies_lavf(void *talloc_ctx, struct mp_log *log, char *file)
{
void *tmp = talloc_new(NULL);
struct cookie_list_type *list = NULL;
if (file && file[0])
list = load_cookies_from(tmp, log, file);
char *res = talloc_strdup(talloc_ctx, "");
while (list) {
res = talloc_asprintf_append_buffer(res,
"%s=%s; path=%s; domain=%s; %s\n", list->name, list->value,
list->path, list->domain, list->secure ? "secure" : "");
list = list->next;
}
talloc_free(tmp);
return res;
}
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