AFB_clientCtx *client=request->client; // get client context from request
// check we do not already have a session
- if ((client != NULL) && (client->handle != NULL)) {
+ if ((client != NULL) && (client->ctx != NULL)) {
request->errcode=MHD_HTTP_FORBIDDEN;
return (jsonNewMessage(AFB_FAIL, "Token exist use refresh"));
}
+ // request a new client context token and check result
+ if (AFB_UNAUTH == ctxTokenCreate (request)) {
+ request->errcode=MHD_HTTP_UNAUTHORIZED;
+ jresp= jsonNewMessage(AFB_FAIL, "No/Invalid initial token provided [should match --token=xxxx]");
+ return (jresp);
+ }
+
// request a new client context token and check result
if (AFB_SUCCESS != ctxTokenCreate (request)) {
request->errcode=MHD_HTTP_UNAUTHORIZED;
return (jresp);
}
- // add a client handle to session
- client->handle = malloc (sizeof (MyClientApplicationHandle));
+ // add a client context to session
+ client->ctx = malloc (sizeof (MyClientApplicationHandle));
// Send response to UI
jresp = json_object_new_object();
return (jresp);
}
+
+
// Close and Free context
STATIC json_object* clientContextReset (AFB_request *request) {
json_object *jresp;
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_apiCB)apiPingTest ,"Ping Rest Test Service"},
{"token-refresh" , (AFB_apiCB)clientContextRefresh,"Refresh Client Context Token"},
{"token-check" , (AFB_apiCB)clientContextCheck ,"Check Client Context Token"},
{"token-reset" , (AFB_apiCB)clientContextReset ,"Close Client Context and Free resources"},
+ {"file-upload" , (AFB_apiCB)ProcessPostForm ,"Demo for file upload"},
{NULL}
};
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
Code Review / src / app-framework-binder.git / blobdiff