oops, forgot the plugin interface

This commit is contained in:
Ron Pedde 2007-08-09 07:10:35 +00:00
parent 0429230d00
commit 57dded49f9
1 changed files with 529 additions and 0 deletions

529
src/ff-plugins.c Normal file
View File

@ -0,0 +1,529 @@
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "conf.h"
#include "configfile.h"
#include "daapd.h"
#include "db-generic.h"
#include "err.h"
#include "ff-dbstruct.h"
#include "ff-plugins.h"
#include "mp3-scanner.h"
#include "plugin.h"
#include "util.h"
#include "webserver.h"
EXPORT char *pi_ws_uri(WS_CONNINFO *pwsc) {
ASSERT(pwsc);
if(!pwsc)
return NULL;
return ws_uri(pwsc);
}
EXPORT void pi_ws_will_close(WS_CONNINFO *pwsc) {
ASSERT(pwsc);
if(!pwsc)
return;
ws_should_close(pwsc,1);
}
EXPORT int pi_ws_returnerror(WS_CONNINFO *pwsc, int ecode, char *msg) {
ASSERT(pwsc);
if(!pwsc)
return FALSE;
return ws_returnerror(pwsc,ecode,msg);
}
EXPORT char *pi_ws_getvar(WS_CONNINFO *pwsc, char *var) {
ASSERT(pwsc);
ASSERT(var);
if((!pwsc) || (!var))
return NULL;
return ws_getvar(pwsc,var);
}
EXPORT int pi_ws_writefd(WS_CONNINFO *pwsc, char *fmt, ...) {
char *out;
va_list ap;
int result;
ASSERT((pwsc) && (fmt));
if((!pwsc) || (!fmt))
return FALSE;
va_start(ap,fmt);
out = util_vasprintf(fmt,ap);
va_end(ap);
result = ws_writefd(pwsc, "%s", out);
free(out);
return result;
}
EXPORT int pi_ws_addresponseheader(WS_CONNINFO *pwsc, char *header, char *fmt, ...) {
char *out;
va_list ap;
int result;
ASSERT(pwsc && header && fmt);
if((!pwsc) || (!header) || (!fmt))
return FALSE;
va_start(ap,fmt);
out = util_vasprintf(fmt,ap);
va_end(ap);
result = ws_addresponseheader(pwsc, header, "%s", out);
free(out);
return result;
}
EXPORT void pi_ws_emitheaders(WS_CONNINFO *pwsc) {
ASSERT(pwsc);
if(!pwsc)
return;
ws_emitheaders(pwsc);
}
EXPORT char *pi_ws_getrequestheader(WS_CONNINFO *pwsc, char *header) {
ASSERT((pwsc) && (header));
if((!pwsc) || (!header))
return NULL;
return ws_getrequestheader(pwsc, header);
}
EXPORT int pi_ws_writebinary(WS_CONNINFO *pwsc, char *data, int len) {
ASSERT((pwsc) && (data) && (len));
if((!pwsc) || (!data) || (!len))
return 0;
return ws_writebinary(pwsc, data, len);
}
EXPORT char *pi_ws_gethostname(WS_CONNINFO *pwsc) {
ASSERT(pwsc);
if(!pwsc)
return NULL;
return ws_hostname(pwsc);
}
EXPORT int pi_ws_matchesrole(WS_CONNINFO *pwsc, char *username,
char *password, char *role) {
ASSERT((pwsc) && (role));
if((!pwsc) || (!role))
return FALSE;
return config_matches_role(pwsc, username, password, role);
}
/* misc helpers */
EXPORT char *pi_server_ver(void) {
return VERSION;
}
EXPORT int pi_server_name(char *name, int *len) {
char *servername;
ASSERT((name) && (len));
if((!name) || (!len))
return FALSE;
servername = conf_get_servername();
/* FIXME: this is stupid */
if((servername) && (strlen(servername) < (size_t)len)) {
strcpy(name,servername);
} else {
if((size_t)len > strlen("Firefly Media Server"))
strcpy(name,"Firefly Media Server");
}
free(servername);
return CONF_E_SUCCESS;
}
EXPORT void pi_log(int level, char *fmt, ...) {
char *out;
va_list ap;
va_start(ap,fmt);
out=util_vasprintf(fmt,ap);
va_end(ap);
DPRINTF(level,L_PLUG,"%s",out);
free(out);
}
/**
* check to see if we can transcode
*
* @param codec the codec we are trying to serve
* @returns TRUE if we can transcode, FALSE otherwise
*/
EXPORT int pi_should_transcode(WS_CONNINFO *pwsc, char *codec) {
return plugin_ssc_should_transcode(pwsc,codec);
}
EXPORT int pi_db_count(void) {
int count;
db_get_song_count(NULL, &count);
return count;
}
EXPORT int pi_db_enum_start(char **pe, DB_QUERY *pinfo) {
DBQUERYINFO *pqi;
int result;
pqi = (DBQUERYINFO*)malloc(sizeof(DBQUERYINFO));
if(!pqi) {
if(pe) *pe = strdup("Malloc error");
return DB_E_MALLOC;
}
memset(pqi,0,sizeof(DBQUERYINFO));
pinfo->priv = (void*)pqi;
if(pinfo->filter) {
pqi->pt = sp_init();
if(!sp_parse(pqi->pt,pinfo->filter,pinfo->filter_type)) {
DPRINTF(E_LOG,L_PLUG,"Ignoring bad query (%s): %s\n",
pinfo->filter,sp_get_error(pqi->pt));
sp_dispose(pqi->pt);
pqi->pt = NULL;
}
}
if((pinfo->limit) || (pinfo->offset)) {
pqi->index_low = pinfo->offset;
pqi->index_high = pinfo->offset + pinfo->limit - 1;
if(pqi->index_high < pqi->index_low)
pqi->index_high = 9999999;
pqi->index_type = indexTypeSub;
} else {
pqi->index_type = indexTypeNone;
}
pqi->want_count = 1;
switch(pinfo->query_type) {
case QUERY_TYPE_PLAYLISTS:
pqi->query_type = queryTypePlaylists;
break;
case QUERY_TYPE_DISTINCT:
if((strcmp(pinfo->distinct_field,"artist") == 0)) {
pqi->query_type = queryTypeBrowseArtists;
} else if((strcmp(pinfo->distinct_field,"genre") == 0)) {
pqi->query_type = queryTypeBrowseGenres;
} else if((strcmp(pinfo->distinct_field,"album") == 0)) {
pqi->query_type = queryTypeBrowseAlbums;
} else if((strcmp(pinfo->distinct_field,"composer") == 0)) {
pqi->query_type = queryTypeBrowseComposers;
} else {
if(pe) *pe = strdup("Unsupported browse type");
if(pqi->pt)
sp_dispose(pqi->pt);
pqi->pt = NULL;
return -1; /* not really a db error for this */
}
break;
case QUERY_TYPE_ITEMS:
default:
pqi->query_type = queryTypePlaylistItems;
pqi->correct_order = conf_get_int("scan","correct_order",1);
break;
}
pqi->playlist_id = pinfo->playlist_id;
result = db_enum_start(pe, pqi);
pinfo->totalcount = pqi->specifiedtotalcount;
return DB_E_SUCCESS;
}
EXPORT int pi_db_enum_fetch_row(char **pe, char ***row, DB_QUERY *pinfo) {
return db_enum_fetch_row(pe, (PACKED_MP3FILE*)row,
(DBQUERYINFO*)pinfo->priv);
}
EXPORT int pi_db_enum_end(char **pe) {
return db_enum_end(pe);
}
EXPORT int pi_db_enum_restart(char **pe, DB_QUERY *pinfo) {
DBQUERYINFO *pqi;
pqi = (DBQUERYINFO*)pinfo->priv;
return db_enum_reset(pe,pqi);
}
EXPORT void pi_db_enum_dispose(char **pe, DB_QUERY *pinfo) {
DBQUERYINFO *pqi;
if(!pinfo)
return;
if(pinfo->priv) {
pqi = (DBQUERYINFO *)pinfo->priv;
if(pqi->pt) {
sp_dispose(pqi->pt);
pqi->pt = NULL;
}
}
}
EXPORT void pi_stream(WS_CONNINFO *pwsc, char *id) {
int session = 0;
MP3FILE *pmp3;
IOHANDLE hfile;
uint64_t bytes_copied=0;
uint64_t real_len;
uint64_t file_len;
uint64_t offset=0;
int item;
/* stream out the song */
ws_should_close(pwsc,1);
item = atoi(id);
if(ws_getrequestheader(pwsc,"range")) {
offset=(off_t)atol(ws_getrequestheader(pwsc,"range") + 6);
}
/* FIXME: error handling */
pmp3=db_fetch_item(NULL,item);
if(!pmp3) {
DPRINTF(E_LOG,L_DAAP|L_WS|L_DB,"Could not find requested item %lu\n",item);
config_set_status(pwsc,session,NULL);
ws_returnerror(pwsc,404,"File Not Found");
} else if (pi_should_transcode(pwsc,pmp3->codectype)) {
/************************
* Server side conversion
************************/
config_set_status(pwsc,session,
"Transcoding '%s' (id %d)",
pmp3->title,pmp3->id);
DPRINTF(E_WARN,L_WS,
"Session %d: Streaming file '%s' to %s (offset %ld)\n",
session,pmp3->fname, ws_hostname(pwsc),(long)offset);
/* estimate the real length of this thing */
bytes_copied = plugin_ssc_transcode(pwsc,pmp3,offset,1);
if(bytes_copied != -1)
real_len = bytes_copied;
config_set_status(pwsc,session,NULL);
db_dispose_item(pmp3);
} else {
/**********************
* stream file normally
**********************/
if(pmp3->data_kind != 0) {
ws_returnerror(pwsc,500,"Can't stream radio station");
return;
}
hfile = io_new();
if(!hfile)
DPRINTF(E_FATAL,L_WS,"Cannot allocate file handle\n");
if(!io_open(hfile,"file://%U",pmp3->path)) {
/* FIXME: ws_set_errstr */
ws_set_err(pwsc,E_WS_NATIVE);
DPRINTF(E_WARN,L_WS,"Thread %d: Error opening %s: %s\n",
ws_threadno(pwsc),pmp3->path,io_errstr(hfile));
ws_returnerror(pwsc,404,"Not found");
config_set_status(pwsc,session,NULL);
db_dispose_item(pmp3);
io_dispose(hfile);
} else {
io_size(hfile,&real_len);
file_len = real_len - offset;
DPRINTF(E_DBG,L_WS,"Thread %d: Length of file (remaining): %lld\n",
ws_threadno(pwsc),file_len);
// DWB: fix content-type to correctly reflect data
// content type (dmap tagged) should only be used on
// dmap protocol requests, not the actually song data
if(pmp3->type)
ws_addresponseheader(pwsc,"Content-Type","audio/%s",pmp3->type);
ws_addresponseheader(pwsc,"Content-Length","%ld",(long)file_len);
if((ws_getrequestheader(pwsc,"user-agent")) &&
(!strncmp(ws_getrequestheader(pwsc,"user-agent"),
"Hifidelio",9))) {
ws_addresponseheader(pwsc,"Connection","Keep-Alive");
ws_should_close(pwsc,0);
} else {
ws_addresponseheader(pwsc,"Connection","Close");
}
if(!offset)
ws_writefd(pwsc,"HTTP/1.1 200 OK\r\n");
else {
ws_addresponseheader(pwsc,"Content-Range","bytes %ld-%ld/%ld",
(long)offset,(long)real_len,
(long)real_len+1);
ws_writefd(pwsc,"HTTP/1.1 206 Partial Content\r\n");
}
ws_emitheaders(pwsc);
config_set_status(pwsc,session,"Streaming '%s' (id %d)",
pmp3->title, pmp3->id);
DPRINTF(E_WARN,L_WS,"Session %d: Streaming file '%s' to %s (offset %d)\n",
session,pmp3->fname, ws_hostname(pwsc),(long)offset);
if(offset) {
DPRINTF(E_INF,L_WS,"Seeking to offset %ld\n",(long)offset);
io_setpos(hfile,offset,SEEK_SET);
}
if(!ws_copyfile(pwsc,hfile,&bytes_copied)) {
/* FIXME: Get webserver error string */
DPRINTF(E_INF,L_WS,"Error copying file to remote...\n");
ws_should_close(pwsc,1);
} else {
DPRINTF(E_INF,L_WS,"Finished streaming file to remote: %lld bytes\n",
bytes_copied);
}
config_set_status(pwsc,session,NULL);
io_close(hfile);
io_dispose(hfile);
db_dispose_item(pmp3);
}
/* update play counts */
if(bytes_copied >= (real_len * 80 / 100)) {
db_playcount_increment(NULL,pmp3->id);
if(!offset)
config.stats.songs_served++; /* FIXME: remove stat races */
}
}
// free(pqi);
}
EXPORT int pi_db_add_playlist(char **pe, char *name, int type, char *clause,
char *path, int index, int *playlistid) {
return db_add_playlist(pe, name, type, clause, path, index, playlistid);
}
EXPORT int pi_db_add_playlist_item(char **pe, int playlistid, int songid) {
return db_add_playlist_item(pe, playlistid, songid);
}
EXPORT int pi_db_edit_playlist(char **pe, int id, char *name, char *clause) {
return db_edit_playlist(pe, id, name, clause);
}
EXPORT int pi_db_delete_playlist(char **pe, int playlistid) {
return db_delete_playlist(pe, playlistid);
}
EXPORT int pi_db_delete_playlist_item(char **pe, int playlistid, int songid) {
return db_delete_playlist_item(pe, playlistid, songid);
}
EXPORT int pi_db_revision(void) {
return db_revision();
}
/* FIXME: error checking */
EXPORT int pi_db_count_items(int what) {
int count=0;
switch(what) {
case COUNT_SONGS:
db_get_song_count(NULL,&count);
break;
case COUNT_PLAYLISTS:
db_get_playlist_count(NULL,&count);
break;
}
return count;
}
EXPORT int pi_db_wait_update(WS_CONNINFO *pwsc) {
int clientver=1;
int lastver=0;
IO_WAITHANDLE hwait;
uint32_t ms;
if(ws_getvar(pwsc,"revision-number")) {
clientver=atoi(ws_getvar(pwsc,"revision-number"));
}
/* wait for db_version to be stable for 30 seconds */
hwait = io_wait_new();
if(!hwait)
DPRINTF(E_FATAL,L_MISC,"Can't get wait handle in db_wait_update\n");
/* FIXME: Move this up into webserver to avoid groping around
* inside reserved data structures */
io_wait_add(hwait,pwsc->hclient,IO_WAIT_ERROR);
while((clientver == db_revision()) ||
(lastver && (db_revision() != lastver))) {
lastver = db_revision();
if(!io_wait(hwait,&ms) && (ms != 0)) {
/* can't be ready for read, must be error */
DPRINTF(E_DBG,L_DAAP,"Update session stopped\n");
io_wait_dispose(hwait);
return FALSE;
}
}
io_wait_dispose(hwait);
return TRUE;
}
EXPORT char *pi_conf_alloc_string(char *section, char *key, char *dflt) {
return conf_alloc_string(section, key, dflt);
}
EXPORT void pi_conf_dispose_string(char *str) {
free(str);
}
EXPORT int pi_conf_get_int(char *section, char *key, int dflt) {
return conf_get_int(section, key, dflt);
}
EXPORT void pi_config_set_status(WS_CONNINFO *pwsc, int session, char *fmt, ...) {
}