/*****************************************************************************
* access.c: HTTP/TLS VLC access plug-in
*****************************************************************************
* Copyright © 2015 Rémi Denis-Courmont
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#undef MODULE_STRING
#define MODULE_STRING "http"
#include <assert.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <vlc_common.h>
#include <vlc_access.h>
#include <vlc_keystore.h>
#include <vlc_plugin.h>
#include <vlc_url.h>
#include "connmgr.h"
#include "resource.h"
#include "file.h"
#include "live.h"
typedef struct
{
struct vlc_http_mgr *manager;
struct vlc_http_resource *resource;
} access_sys_t;
static block_t *FileRead(stream_t *access, bool *restrict eof)
{
access_sys_t *sys = access->p_sys;
block_t *b = vlc_http_file_read(sys->resource);
if (b == NULL)
*eof = true;
return b;
}
static int FileSeek(stream_t *access, uint64_t pos)
{
access_sys_t *sys = access->p_sys;
if (vlc_http_file_seek(sys->resource, pos))
return VLC_EGENERIC;
return VLC_SUCCESS;
}
static int FileControl(stream_t *access, int query, va_list args)
{
access_sys_t *sys = access->p_sys;
switch (query)
{
case STREAM_CAN_SEEK:
*va_arg(args, bool *) = vlc_http_file_can_seek(sys->resource);
break;
case STREAM_CAN_FASTSEEK:
*va_arg(args, bool *) = false;
break;
case STREAM_CAN_PAUSE:
case STREAM_CAN_CONTROL_PACE:
case STREAM_CAN_DOWNLOAD:
*va_arg(args, bool *) = true;
break;
case STREAM_GET_SIZE:
{
uintmax_t val = vlc_http_file_get_size(sys->resource);
if (val >= UINT64_MAX)
return VLC_EGENERIC;
*va_arg(args, uint64_t *) = val;
break;
}
case STREAM_GET_PTS_DELAY:
*va_arg(args, vlc_tick_t *) = VLC_TICK_FROM_MS(
var_InheritInteger(access, "network-caching") );
break;
case STREAM_GET_CONTENT_TYPE:
*va_arg(args, char **) = vlc_http_file_get_type(sys->resource);
break;
case STREAM_SET_PAUSE_STATE:
break;
default:
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
static block_t *LiveRead(stream_t *access, bool *restrict eof)
{
access_sys_t *sys = access->p_sys;
block_t *b = vlc_http_live_read(sys->resource);
if (b == NULL) /* TODO: loop instead of EOF, see vlc_http_live_read() */
*eof = true;
return b;
}
static int LiveControl(stream_t *access, int query, va_list args)
{
access_sys_t *sys = access->p_sys;
switch (query)
{
case STREAM_CAN_SEEK:
case STREAM_CAN_FASTSEEK:
case STREAM_CAN_PAUSE:
case STREAM_CAN_CONTROL_PACE:
*va_arg(args, bool *) = false;
break;
case STREAM_GET_PTS_DELAY:
*va_arg(args, vlc_tick_t *) = VLC_TICK_FROM_MS(
var_InheritInteger(access, "network-caching") );
break;
case STREAM_GET_CONTENT_TYPE:
*va_arg(args, char **) = vlc_http_live_get_type(sys->resource);
break;
default:
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
static int Open(vlc_object_t *obj)
{
stream_t *access = (stream_t *)obj;
access_sys_t *sys = malloc(sizeof (*sys));
int ret = VLC_ENOMEM;
if (unlikely(sys == NULL))
return VLC_ENOMEM;
sys->manager = NULL;
sys->resource = NULL;
void *jar = NULL;
if (var_InheritBool(obj, "http-forward-cookies"))
jar = var_InheritAddress(obj, "http-cookies");
struct vlc_credential crd;
struct vlc_url_t crd_url;
char *psz_realm = NULL;
vlc_UrlParse(&crd_url, access->psz_url);
vlc_credential_init(&crd, &crd_url);
sys->manager = vlc_http_mgr_create(obj, jar);
if (sys->manager == NULL)
goto error;
char *ua = var_InheritString(obj, "http-user-agent");
char *referer = var_InheritString(obj, "http-referrer");
bool live = var_InheritBool(obj, "http-continuous");
sys->resource = (live ? vlc_http_live_create : vlc_http_file_create)(
sys->manager, access->psz_url, ua, referer);
free(referer);
free(ua);
if (sys->resource == NULL)
goto error;
ret = vlc_credential_get(&crd, obj, NULL, NULL, NULL, NULL);
if (ret == 0)
vlc_http_res_set_login(sys->resource,
crd.psz_username, crd.psz_password);
else if (ret == -EINTR)
goto error;
ret = VLC_EGENERIC;
int status = vlc_http_res_get_status(sys->resource);
while (status == 401) /* authentication */
{
crd.psz_authtype = "Basic";
free(psz_realm);
psz_realm = vlc_http_res_get_basic_realm(sys->resource);
if (psz_realm == NULL)
break;
crd.psz_realm = psz_realm;
if (vlc_credential_get(&crd, obj, NULL, NULL, _("HTTP authentication"),
_("Please enter a valid login name and "
"a password for realm %s."), crd.psz_realm) != 0)
break;
vlc_http_res_set_login(sys->resource,
crd.psz_username, crd.psz_password);
status = vlc_http_res_get_status(sys->resource);
}
if (status < 0)
{
msg_Err(access, "HTTP connection failure");
goto error;
}
char *redir = vlc_http_res_get_redirect(sys->resource);
if (redir != NULL)
{
access->psz_url = redir;
ret = VLC_ACCESS_REDIRECT;
goto error;
}
if (status >= 300)
{
msg_Err(access, "HTTP %d error", status);
goto error;
}
vlc_credential_store(&crd, obj);
free(psz_realm);
vlc_credential_clean(&crd);
vlc_UrlClean(&crd_url);
access->pf_read = NULL;
if (live)
{
access->pf_block = LiveRead;
access->pf_seek = NULL;
access->pf_control = LiveControl;
}
else
{
access->pf_block = FileRead;
access->pf_seek = FileSeek;
access->pf_control = FileControl;
}
access->p_sys = sys;
return VLC_SUCCESS;
error:
if (sys->resource != NULL)
vlc_http_res_destroy(sys->resource);
if (sys->manager != NULL)
vlc_http_mgr_destroy(sys->manager);
free(psz_realm);
vlc_credential_clean(&crd);
vlc_UrlClean(&crd_url);
free(sys);
return ret;
}
static void Close(vlc_object_t *obj)
{
stream_t *access = (stream_t *)obj;
access_sys_t *sys = access->p_sys;
vlc_http_res_destroy(sys->resource);
vlc_http_mgr_destroy(sys->manager);
free(sys);
}
vlc_module_begin()
set_description(N_("HTTPS input"))
set_shortname(N_("HTTPS"))
set_subcategory(SUBCAT_INPUT_ACCESS)
set_capability("access", 2)
add_shortcut("https", "http")
set_callbacks(Open, Close)
add_bool("http-continuous", false, N_("Continuous stream"),
N_("Keep reading a resource that keeps being updated."))
change_volatile()
add_bool("http-forward-cookies", true, N_("Cookies forwarding"),
N_("Forward cookies across HTTP redirections."))
add_string("http-referrer", NULL, N_("Referrer"),
N_("Provide the referral URL, i.e. HTTP \"Referer\" (sic)."))
change_safe()
change_volatile()
add_string("http-user-agent", NULL, N_("User agent"),
N_("Override the name and version of the application as "
"provided to the HTTP server, i.e. the HTTP \"User-Agent\". "
"Name and version must be separated by a forward slash, "
"e.g. \"FooBar/1.2.3\"."))
change_safe()
change_private()
vlc_module_end()
¤ Dauer der Verarbeitung: 0.4 Sekunden
¤
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