1 /*****************************************************************************
2 * http.c: HTTP interface
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
6 * Authors: Christophe Massiot <massiot@via.ecp.fr>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
28 #include <vlc_access.h>
35 #include <sys/types.h>
39 /* Include dvbpsi headers */
40 #ifdef HAVE_DVBPSI_DR_H
41 # include <dvbpsi/dvbpsi.h>
42 # include <dvbpsi/descriptor.h>
43 # include <dvbpsi/pat.h>
44 # include <dvbpsi/pmt.h>
45 # include <dvbpsi/dr.h>
46 # include <dvbpsi/psi.h>
49 # include "descriptor.h"
50 # include "tables/pat.h"
51 # include "tables/pmt.h"
52 # include "descriptors/dr.h"
57 # include "vlc_httpd.h"
64 struct httpd_file_sys_t
70 static int HttpCallback( httpd_file_sys_t *p_args,
73 uint8_t **_pp_data, int *pi_data );
75 /*****************************************************************************
76 * HTTPOpen: Start the internal HTTP server
77 *****************************************************************************/
78 int E_(HTTPOpen)( access_t *p_access )
80 access_sys_t *p_sys = p_access->p_sys;
81 char *psz_address, *psz_cert = NULL, *psz_key = NULL,
82 *psz_ca = NULL, *psz_crl = NULL, *psz_user = NULL,
83 *psz_password = NULL, *psz_acl = NULL;
86 vlc_acl_t *p_acl = NULL;
89 vlc_mutex_init( p_access, &p_sys->httpd_mutex );
90 vlc_cond_init( p_access, &p_sys->httpd_cond );
91 p_sys->b_request_frontend_info = p_sys->b_request_mmi_info = VLC_FALSE;
92 p_sys->i_httpd_timeout = 0;
94 psz_address = var_GetNonEmptyString( p_access, "dvb-http-host" );
95 if( psz_address != NULL )
97 char *psz_parser = strchr( psz_address, ':' );
100 *psz_parser++ = '\0';
101 i_port = atoi( psz_parser );
107 /* determine SSL configuration */
108 psz_cert = var_GetNonEmptyString( p_access, "dvb-http-intf-cert" );
109 if ( psz_cert != NULL )
111 msg_Dbg( p_access, "enabling TLS for HTTP interface (cert file: %s)",
113 psz_key = config_GetPsz( p_access, "dvb-http-intf-key" );
114 psz_ca = config_GetPsz( p_access, "dvb-http-intf-ca" );
115 psz_crl = config_GetPsz( p_access, "dvb-http-intf-crl" );
126 /* Ugly hack to allow to run several HTTP servers on different ports. */
127 sprintf( psz_tmp, ":%d", i_port + 1 );
128 config_PutPsz( p_access, "dvb-http-host", psz_tmp );
130 msg_Dbg( p_access, "base %s:%d", psz_address, i_port );
132 p_sys->p_httpd_host = httpd_TLSHostNew( VLC_OBJECT(p_access), psz_address,
133 i_port, psz_cert, psz_key, psz_ca,
140 if ( p_sys->p_httpd_host == NULL )
142 msg_Err( p_access, "cannot listen on %s:%d", psz_address, i_port );
148 psz_user = var_GetNonEmptyString( p_access, "dvb-http-user" );
149 psz_password = var_GetNonEmptyString( p_access, "dvb-http-password" );
150 psz_acl = var_GetNonEmptyString( p_access, "dvb-http-acl" );
152 if ( psz_acl != NULL )
154 p_acl = ACL_Create( p_access, VLC_FALSE );
155 if( ACL_LoadFile( p_acl, psz_acl ) )
157 ACL_Destroy( p_acl );
162 /* Declare an index.html file. */
163 f = malloc( sizeof(httpd_file_sys_t) );
164 f->p_access = p_access;
165 f->p_file = httpd_FileNew( p_sys->p_httpd_host, "/index.html",
166 "text/html; charset=UTF-8",
167 psz_user, psz_password, p_acl,
171 free( psz_password );
174 ACL_Destroy( p_acl );
176 if ( f->p_file == NULL )
179 p_sys->p_httpd_file = NULL;
183 p_sys->p_httpd_file = f;
184 p_sys->p_httpd_redir = httpd_RedirectNew( p_sys->p_httpd_host,
185 "/index.html", "/" );
190 /*****************************************************************************
191 * HTTPClose: Stop the internal HTTP server
192 *****************************************************************************/
193 void E_(HTTPClose)( access_t *p_access )
195 access_sys_t *p_sys = p_access->p_sys;
197 if ( p_sys->p_httpd_host != NULL )
199 if ( p_sys->p_httpd_file != NULL )
201 /* Unlock the thread if it is stuck in HttpCallback */
202 vlc_mutex_lock( &p_sys->httpd_mutex );
203 if ( p_sys->b_request_frontend_info == VLC_TRUE )
205 p_sys->b_request_frontend_info = VLC_FALSE;
206 p_sys->psz_frontend_info = strdup("");
208 if ( p_sys->b_request_mmi_info == VLC_TRUE )
210 p_sys->b_request_mmi_info = VLC_FALSE;
211 p_sys->psz_mmi_info = strdup("");
213 vlc_cond_signal( &p_sys->httpd_cond );
214 vlc_mutex_unlock( &p_sys->httpd_mutex );
216 httpd_FileDelete( p_sys->p_httpd_file->p_file );
217 httpd_RedirectDelete( p_sys->p_httpd_redir );
220 httpd_HostDelete( p_sys->p_httpd_host );
223 vlc_mutex_destroy( &p_sys->httpd_mutex );
224 vlc_cond_destroy( &p_sys->httpd_cond );
228 static const char *psz_constant_header =
230 "<head><title>VLC DVB monitoring interface</title></head>\n"
231 "<body><a href=\"index.html\">Reload this page</a>\n"
232 "<h1>CAM info</h1>\n";
234 static const char *psz_constant_middle =
235 "<hr><h1>Frontend Info</h1>\n";
237 static const char *psz_constant_footer =
240 /****************************************************************************
241 * HttpCallback: Return the index.html file
242 ****************************************************************************/
243 static int HttpCallback( httpd_file_sys_t *p_args,
244 httpd_file_t *p_file,
245 uint8_t *_psz_request,
246 uint8_t **_pp_data, int *pi_data )
248 access_sys_t *p_sys = p_args->p_access->p_sys;
249 char *psz_request = (char *)_psz_request;
250 char **pp_data = (char **)_pp_data;
252 vlc_mutex_lock( &p_sys->httpd_mutex );
254 p_sys->i_httpd_timeout = mdate() + I64C(3000000); /* 3 s */
255 p_sys->psz_request = psz_request;
256 p_sys->b_request_frontend_info = VLC_TRUE;
257 if ( p_sys->i_ca_handle )
259 p_sys->b_request_mmi_info = VLC_TRUE;
263 p_sys->psz_mmi_info = strdup( "No available CAM interface\n" );
268 vlc_cond_wait( &p_sys->httpd_cond, &p_sys->httpd_mutex );
270 while ( p_sys->b_request_frontend_info || p_sys->b_request_mmi_info );
272 p_sys->i_httpd_timeout = 0;
273 vlc_mutex_unlock( &p_sys->httpd_mutex );
275 *pi_data = strlen( psz_constant_header )
276 + strlen( p_sys->psz_mmi_info )
277 + strlen( psz_constant_middle )
278 + strlen( p_sys->psz_frontend_info )
279 + strlen( psz_constant_footer ) + 1;
280 *pp_data = malloc( *pi_data );
282 sprintf( *pp_data, "%s%s%s%s%s", psz_constant_header,
283 p_sys->psz_mmi_info, psz_constant_middle,
284 p_sys->psz_frontend_info, psz_constant_footer );
285 free( p_sys->psz_frontend_info );
286 free( p_sys->psz_mmi_info );
291 /****************************************************************************
292 * HTTPExtractValue: Extract a GET variable from psz_request
293 ****************************************************************************/
294 char *E_(HTTPExtractValue)( char *psz_uri, const char *psz_name,
295 char *psz_value, int i_value_max )
299 while( (p = strstr( p, psz_name )) )
301 /* Verify that we are dealing with a post/get argument */
302 if( (p == psz_uri || *(p - 1) == '&' || *(p - 1) == '\n')
303 && p[strlen(psz_name)] == '=' )
312 p += strlen( psz_name );
315 if( strchr( p, '&' ) )
317 i_len = strchr( p, '&' ) - p;
321 /* for POST method */
322 if( strchr( p, '\n' ) )
324 i_len = strchr( p, '\n' ) - p;
325 if( i_len && *(p+i_len-1) == '\r' ) i_len--;
332 i_len = __MIN( i_value_max - 1, i_len );
335 strncpy( psz_value, p, i_len );
336 psz_value[i_len] = '\0';
340 strncpy( psz_value, "", i_value_max );
346 strncpy( psz_value, "", i_value_max );
352 #endif /* ENABLE_HTTPD */