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authorManuel Bachmann <manuel.bachmann@iot.bzh>2015-12-16 11:25:54 +0100
committerManuel Bachmann <manuel.bachmann@iot.bzh>2015-12-16 11:25:54 +0100
commite2d857c5f05f84de8e2642ff9272a80ea9e5fed6 (patch)
tree2df2f5939637de58a4fdad24b5cf0d5b9afd561f /plugins/samples/SamplePost.c
parent4e43e3b53482bff8cb835271eb3207aeaf593812 (diff)
New tree organization, update CMake req. to 2.8.8.
Use CMake-2.8.8-specific feature to allow building the daemon from various source directories. Signed-off-by: Manuel Bachmann <manuel.bachmann@iot.bzh>
Diffstat (limited to 'plugins/samples/SamplePost.c')
-rw-r--r--plugins/samples/SamplePost.c194
1 files changed, 194 insertions, 0 deletions
diff --git a/plugins/samples/SamplePost.c b/plugins/samples/SamplePost.c
new file mode 100644
index 00000000..9e1c7660
--- /dev/null
+++ b/plugins/samples/SamplePost.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2015 "IoT.bzh"
+ * Author "Fulup Ar Foll"
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "local-def.h"
+
+// Dummy sample of Client Application Context
+typedef struct {
+ int something;
+ void *whateveryouwant;
+} MyClientApplicationHandle;
+
+
+// Request Creation of new context if it does not exist
+STATIC json_object* clientContextCreate (AFB_request *request) {
+ json_object *jresp;
+
+ // add an application specific client context to session
+ request->client->ctx = malloc (sizeof (MyClientApplicationHandle));
+
+ // Send response to UI
+ jresp = json_object_new_object();
+ json_object_object_add(jresp, "token", json_object_new_string ("A New Token and Session Context Was Created"));
+
+ return (jresp);
+}
+
+// Before entering here token will be check and renew
+STATIC json_object* clientContextRefresh (AFB_request *request) {
+ json_object *jresp;
+
+
+ jresp = json_object_new_object();
+ json_object_object_add(jresp, "token", json_object_new_string ("Token was refreshed"));
+
+ return (jresp);
+}
+
+
+// Session token will we verified before entering here
+STATIC json_object* clientContextCheck (AFB_request *request) {
+
+ json_object *jresp = json_object_new_object();
+ json_object_object_add(jresp, "isvalid", json_object_new_boolean (TRUE));
+
+ return (jresp);
+}
+
+
+// Close and Free context
+STATIC json_object* clientContextReset (AFB_request *request) {
+ json_object *jresp;
+
+ jresp = json_object_new_object();
+ json_object_object_add(jresp, "uuid", json_object_new_string (request->client->uuid));
+
+ return (jresp);
+}
+
+// In this case or handle is quite basic
+typedef struct {
+ int fd;
+} appPostCtx;
+
+// This function is call when PostForm processing is completed
+STATIC void DonePostForm (AFB_request *request) {
+ AFB_PostHandle *postHandle = (AFB_PostHandle*)request->post->data;
+ appPostCtx *appCtx= postHandle->ctx;
+
+ // Close upload file ID
+ close (appCtx->fd);
+
+ // Free application specific handle
+ free (postHandle->ctx);
+
+ if (verbose) fprintf (stderr, "DonePostForm upload done\n");
+}
+
+
+// WARNING: PostForm callback are call multiple time (one or each key within form)
+// When processing POST_JSON request->data hold a PostHandle and not data directly as for POST_JSON
+STATIC json_object* ProcessPostForm (AFB_request *request, AFB_PostItem *item) {
+
+ AFB_PostHandle *postHandle;
+ appPostCtx *appCtx;
+ char filepath[512];
+
+ // When Post is fully processed the same callback is call with a item==NULL
+ if (item == NULL) {
+ // Close file, Free handle
+
+ request->errcode = MHD_HTTP_OK;
+ return(jsonNewMessage(AFB_SUCCESS,"File [%s] uploaded at [%s] error=\n", item->filename, request->config->sessiondir));
+ }
+
+ // Let's make sure this is a valid PostForm request
+ if (!request->post && request->post->type != AFB_POST_FORM) {
+ request->errcode = MHD_HTTP_FORBIDDEN;
+ return(jsonNewMessage(AFB_FAIL,"This is not a valid PostForm request\n"));
+ } else {
+ // In AFB_POST_FORM case post->data is a PostForm handle
+ postHandle = (AFB_PostHandle*) request->post->data;
+ appCtx = (appPostCtx*) postHandle->ctx;
+ }
+
+ // Check this is a file element
+ if (0 != strcmp (item->key, "file")) {
+ request->errcode = MHD_HTTP_FORBIDDEN;
+ return (jsonNewMessage(AFB_FAIL,"No File within element key=%s\n", item->key));
+ }
+
+ // This is the 1st Item iteration let's open output file and allocate necessary resources
+ if (postHandle->ctx == NULL) {
+ int fd;
+
+ strncpy (filepath, request->config->sessiondir, sizeof(filepath));
+ strncat (filepath, "/", sizeof(filepath));
+ strncat (filepath, item->filename, sizeof(filepath));
+
+ if((fd = open(request->config->sessiondir, O_RDONLY)) < 0) {
+ request->errcode = MHD_HTTP_FORBIDDEN;
+ return (jsonNewMessage(AFB_FAIL,"Fail to Upload file [%s] at [%s] error=\n", item->filename, request->config->sessiondir, strerror(errno)));
+ };
+
+ // Create an application specific context
+ appCtx = malloc (sizeof(appPostCtx)); // May place anything here until post->completeCB handle resources liberation
+ appCtx->fd = fd;
+
+ // attach application to postHandle
+ postHandle->ctx = (void*) appCtx; // May place anything here until post->completeCB handle resources liberation
+ postHandle->completeCB = (AFB_apiCB)DonePostForm; // CallBack when Form Processing is finished
+
+ } else {
+ // this is not the call, FD is already open
+ appCtx = (appPostCtx*) postHandle->ctx;
+ }
+
+ // We have something to write
+ if (item->len > 0) {
+
+ if (!write (appCtx->fd, item->data, item->len)) {
+ request->errcode = MHD_HTTP_FORBIDDEN;
+ return (jsonNewMessage(AFB_FAIL,"Fail to write file [%s] at [%s] error=\n", item->filename, strerror(errno)));
+ }
+ }
+
+ // every event should return Sucess or Form processing stop
+ request->errcode = MHD_HTTP_OK;
+ return NULL;
+}
+
+// This function is call when Client Session Context is removed
+// Note: when freeCtxCB==NULL standard free/malloc is called
+STATIC void clientContextFree(AFB_clientCtx *client) {
+ fprintf (stderr,"Plugin[%s] Closing Session uuid=[%s]\n", client->plugin->prefix, client->uuid);
+ free (client->ctx);
+}
+
+STATIC AFB_restapi pluginApis[]= {
+ {"ping" , AFB_SESSION_NONE , (AFB_apiCB)apiPingTest ,"Ping Rest Test Service"},
+ {"token-create" , AFB_SESSION_CREATE, (AFB_apiCB)clientContextCreate ,"Request Client Context Creation"},
+ {"token-refresh" , AFB_SESSION_RENEW , (AFB_apiCB)clientContextRefresh,"Refresh Client Context Token"},
+ {"token-check" , AFB_SESSION_CHECK , (AFB_apiCB)clientContextCheck ,"Check Client Context Token"},
+ {"token-reset" , AFB_SESSION_CLOSE , (AFB_apiCB)clientContextReset ,"Close Client Context and Free resources"},
+ {"file-upload" , AFB_SESSION_NONE , (AFB_apiCB)ProcessPostForm ,"Demo for file upload"},
+ {NULL}
+};
+
+PUBLIC AFB_plugin *afsvRegister () {
+ AFB_plugin *plugin = malloc (sizeof (AFB_plugin));
+ plugin->type = AFB_PLUGIN_JSON;
+ plugin->info = "Application Framework Binder Service";
+ plugin->prefix= "afbs"; // url base
+ plugin->apis = pluginApis;
+ plugin->handle= (void*) "What ever you want";
+ plugin->freeCtxCB= (void*) clientContextFree;
+
+ return (plugin);
+}; \ No newline at end of file