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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.
*/
#define _GNU_SOURCE
#include <json-c/json.h>
#include "media-api.h"
#include "media-rygel.h"
#include "afb-plugin.h"
#include "afb-req-itf.h"
json_object* _rygel_list (mediaCtxHandleT *);
/* ------ 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;
}
/* ------ PUBLIC PLUGIN FUNCTIONS --------- */
static void init (struct afb_req request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*) afb_req_context_get(request);
json_object *jresp;
/* create a private client context */
if (!ctx) {
ctx = initMediaCtx();
afb_req_context_set (request, ctx, free);
}
/* initialize server connection */
if (!ctx->media_server)
_rygel_init (ctx);
jresp = json_object_new_object ();
json_object_object_add (jresp, "init", json_object_new_string ("success"));
afb_req_success (request, jresp, "Media - Initialized");
}
static void list (struct afb_req request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*) afb_req_context_get(request);
json_object *jresp;
jresp = _rygel_list (ctx);
if (!jresp) {
afb_req_fail (request, "failed", "no content found in media server");
return;
}
afb_req_success (request, jresp, "Media - Listed");
}
static void selecting (struct afb_req request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*) afb_req_context_get(request);
const char *value = afb_req_value (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) {
afb_req_fail (request, "failed", "chosen index cannot be negative");
return;
}
/* "?value=" parameter is positive */
else if (atoi(value) >= 0) {
index = (unsigned int) atoi(value);
if (!_rygel_select (ctx, index)) {
afb_req_fail (request, "failed", "chosen index superior to current media count");
return;
}
ctx->index = index;
jresp = json_object_new_object();
json_object_object_add (jresp, "index", json_object_new_string (value));
}
else
jresp = NULL;
afb_req_success (request, jresp, "Media - Listed");
}
static void play (struct afb_req request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*) afb_req_context_get(request);
json_object *jresp;
if (!_rygel_do (ctx, PLAY, NULL)) {
afb_req_fail (request, "failed", "could not play chosen media");
return;
}
jresp = json_object_new_object ();
json_object_object_add (jresp, "play", json_object_new_string ("success"));
afb_req_success (request, jresp, "Media - Listed");
}
static void stop (struct afb_req request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*) afb_req_context_get(request);
json_object *jresp;
if (!_rygel_do (ctx, STOP, NULL)) {
afb_req_fail (request, "failed", "could not stop chosen media");
return;
}
jresp = json_object_new_object ();
json_object_object_add (jresp, "stop", json_object_new_string ("success"));
afb_req_success (request, jresp, "Media - Stopped");
}
static void pausing (struct afb_req request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*) afb_req_context_get(request);
json_object *jresp;
if (!_rygel_do (ctx, PAUSE, NULL)) {
afb_req_fail (request, "failed", "could not pause chosen media");
return;
}
jresp = json_object_new_object();
json_object_object_add (jresp, "pause", json_object_new_string ("success"));
afb_req_success (request, jresp, "Media - Paused");
}
static void seek (struct afb_req request) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*) afb_req_context_get(request);
const char *value = afb_req_value (request, "value");
json_object *jresp;
/* no "?value=" parameter : return error */
if (!value) {
afb_req_fail (request, "failed", "you must provide a time");
return;
}
if (!_rygel_do (ctx, SEEK, (char *)value)) {
afb_req_fail (request, "failed", "could not seek chosen media");
return;
}
jresp = json_object_new_object();
json_object_object_add (jresp, "seek", json_object_new_string ("success"));
afb_req_success (request, jresp, "Media - Sought");
}
#if 0
static void upload (AFB_request *request, AFB_PostItem *item) { /* AFB_SESSION_CHECK */
mediaCtxHandleT *ctx = (mediaCtxHandleT*) afb_req_context_get(request);
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);
}
#endif
static void ping (struct afb_req request) { /* AFB_SESSION_NONE */
afb_req_success (request, NULL, "Media - Ping succeeded");
}
static const struct AFB_restapi pluginApis[]= {
{"init" , AFB_SESSION_CHECK, init , "Media API - init" },
{"list" , AFB_SESSION_CHECK, list , "Media API - list" },
{"select" , AFB_SESSION_CHECK, selecting , "Media API - select" },
{"play" , AFB_SESSION_CHECK, play , "Media API - play" },
{"stop" , AFB_SESSION_CHECK, stop , "Media API - stop" },
{"pause" , AFB_SESSION_CHECK, pausing , "Media API - pause" },
{"seek" , AFB_SESSION_CHECK, seek , "Media API - seek" },
// {"upload" , AFB_SESSION_CHECK, (AFB_apiCB)upload , "Media API - upload" },
{"ping" , AFB_SESSION_NONE, ping , "Media API - ping" },
{NULL}
};
static const struct AFB_plugin pluginDesc = {
.type = AFB_PLUGIN_JSON,
.info = "Application Framework Binder - Media plugin",
.prefix = "media",
.apis = pluginApis
};
const struct AFB_plugin *pluginRegister (const struct AFB_interface *itf)
{
return &pluginDesc;
}
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