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/*
* Copyright (C) 2016 "IoT.bzh"
* Author "Manuel Bachmann"
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "media-api.h"
/* ------ LOCAL HELPER FUNCTIONS --------- */
/* private client context creation ; default values */
STATIC mediaCtxHandleT* initMediaCtx () {
mediaCtxHandleT *ctx;
ctx = malloc (sizeof(mediaCtxHandleT));
ctx->media_server = NULL;
ctx->index = 0;
return ctx;
}
/* called when client session dies [e.g. client quits for more than 15mns] */
STATIC void freeMedia (void *context) {
free (context);
}
/* ------ PUBLIC PLUGIN FUNCTIONS --------- */
STATIC json_object* init (AFB_request *request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx;
json_object *jresp;
/* create a private client context */
if (!request->context)
request->context = initMediaCtx();
ctx = (mediaCtxHandleT*)request->context;
/* initialize server connection */
if (!ctx->media_server)
_rygel_init (request->context);
jresp = json_object_new_object();
json_object_object_add(jresp, "info", json_object_new_string ("Media initialized"));
return jresp;
}
STATIC json_object* list (AFB_request *request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*)request->context;
json_object *jresp;
jresp = _rygel_list (ctx);
if (!jresp)
return jsonNewMessage(AFB_FAIL, "No content found in media server");
return jresp;
}
STATIC json_object* selecting (AFB_request *request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*)request->context;
const char *value = getQueryValue (request, "value");
json_object *jresp;
unsigned int index;
char index_str[5];
/* no "?value=" parameter : return current index */
if (!value) {
snprintf (index_str, sizeof(index_str), "%d", ctx->index);
jresp = json_object_new_object();
json_object_object_add (jresp, "index", json_object_new_string (index_str));
}
/* "?value=" parameter is negative */
else if (atoi(value) < 0)
return jsonNewMessage(AFB_FAIL, "Chosen index cannot be negative");
/* "?value=" parameter is positive */
else if (atoi(value) >= 0) {
index = (unsigned int) atoi(value);
if (!_rygel_select (ctx, index))
return jsonNewMessage(AFB_FAIL, "Chosen index superior to current media count");
ctx->index = index;
jresp = json_object_new_object();
json_object_object_add (jresp, "index", json_object_new_string (value));
}
else
jresp = NULL;
return jresp;
}
STATIC json_object* play (AFB_request *request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*)request->context;
if (!_rygel_do (ctx, PLAY, NULL))
return jsonNewMessage(AFB_FAIL, "Could not play chosen media");
return jsonNewMessage(AFB_SUCCESS, "PLaying media");
}
STATIC json_object* stop (AFB_request *request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*)request->context;
if (!_rygel_do (ctx, STOP, NULL))
return jsonNewMessage(AFB_FAIL, "Could not stop chosen media");
return jsonNewMessage(AFB_SUCCESS, "Stopped media");
}
STATIC json_object* pausing (AFB_request *request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*)request->context;
if (!_rygel_do (ctx, PAUSE, NULL))
return jsonNewMessage(AFB_FAIL, "Could not pause chosen media");
return jsonNewMessage(AFB_SUCCESS, "Paused media");
}
STATIC json_object* seek (AFB_request *request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*)request->context;
const char *value = getQueryValue (request, "value");
/* no "?value=" parameter : return error */
if (!value)
return jsonNewMessage(AFB_FAIL, "You must provide a time");
if (!_rygel_do (ctx, SEEK, value))
return jsonNewMessage(AFB_FAIL, "Could not seek chosen media");
return jsonNewMessage(AFB_SUCCESS, "Seeked media");
}
STATIC json_object* upload (AFB_request *request, AFB_PostItem *item) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*)request->context;
AFB_PostCtx *postFileCtx;
json_object *jresp;
char *path;
/* item is !NULL until transfer is complete */
if (item != NULL)
return getPostFile (request, item, "media");
/* target intermediary file path */
path = getPostPath (request);
if (!path)
fprintf (stderr, "Error encoutered during intermediary file transfer\n");
else if (!_rygel_upload (ctx, path)) {
request->errcode = MHD_HTTP_EXPECTATION_FAILED;
request->jresp = jsonNewMessage (AFB_FAIL, "Error when uploading file to media server... could not complete");
}
else {
request->errcode = MHD_HTTP_OK;
request->jresp = jsonNewMessage (AFB_SUCCESS, "upload=%s done", path);
}
/* finalizes file transfer */
return getPostFile (request, item, NULL);
}
STATIC json_object* ping (AFB_request *request) { /* AFB_SESSION_NONE */
return jsonNewMessage(AFB_SUCCESS, "Ping Binder Daemon - Media API");
}
STATIC AFB_restapi pluginApis[]= {
{"init" , AFB_SESSION_CHECK, (AFB_apiCB)init , "Media API - init" },
{"list" , AFB_SESSION_CHECK, (AFB_apiCB)list , "Media API - list" },
{"select" , AFB_SESSION_CHECK, (AFB_apiCB)selecting , "Media API - select" },
{"play" , AFB_SESSION_CHECK, (AFB_apiCB)play , "Media API - play" },
{"stop" , AFB_SESSION_CHECK, (AFB_apiCB)stop , "Media API - stop" },
{"pause" , AFB_SESSION_CHECK, (AFB_apiCB)pausing , "Media API - pause" },
{"seek" , AFB_SESSION_CHECK, (AFB_apiCB)seek , "Media API - seek" },
{"upload" , AFB_SESSION_CHECK, (AFB_apiCB)upload , "Media API - upload" },
{"ping" , AFB_SESSION_NONE, (AFB_apiCB)ping , "Media API - ping" },
{NULL}
};
PUBLIC AFB_plugin* pluginRegister () {
AFB_plugin *plugin = malloc (sizeof(AFB_plugin));
plugin->type = AFB_PLUGIN_JSON;
plugin->info = "Application Framework Binder - Media plugin";
plugin->prefix = "media";
plugin->apis = pluginApis;
/*plugin->handle = initRadioPlugin();*/
plugin->freeCtxCB = (AFB_freeCtxCB)freeMedia;
return (plugin);
};
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