*
* Contain all generic part to handle REST/API
*
- * https://www.gnu.org/software/libmicrohttpd/tutorial.html [search 'FILE *fp']
+ * https://www.gnu.org/software/libmicrohttpd/tutorial.html [search 'largepost.c']
*/
#include "../include/local-def.h"
+#include <dirent.h>
+#include <dlfcn.h>
#include <setjmp.h>
#include <signal.h>
#define AFB_MSG_JTYPE "AJB_reply"
-// handle to hold queryAll values
-typedef struct {
- char *msg;
- int idx;
- size_t len;
-} queryHandleT;
static json_object *afbJsonType;
-// Sample Generic Ping Debug API
-PUBLIC json_object* apiPingTest(AFB_request *request) {
- static pingcount = 0;
- json_object *response;
- char query [256];
- char session[256];
-
- int len;
- AFB_clientCtx *client=request->client; // get client context from request
-
- // request all query key/value
- len = getQueryAll (request, query, sizeof(query));
- if (len == 0) strncpy (query, "NoSearchQueryList", sizeof(query));
-
- // check if we have some post data
- if (request->post == NULL) request->post->data="NoData";
-
- // check is we have a session and a plugin handle
- if (client == NULL) strcpy (session,"NoSession");
- else snprintf(session, sizeof(session),"uuid=%s token=%s ctx=0x%x handle=0x%x", client->uuid, client->token, client->ctx, client->ctx);
-
- // return response to caller
- response = jsonNewMessage(AFB_SUCCESS, "Ping Binder Daemon count=%d CtxtId=%d query={%s} session={%s} PostData: [%s] "
- , pingcount++, request->client->cid, query, session, request->post->data);
- return (response);
-}
-
-// Helper to retrieve argument from connection
-PUBLIC const char* getQueryValue(AFB_request * request, char *name) {
- const char *value;
-
- value = MHD_lookup_connection_value(request->connection, MHD_GET_ARGUMENT_KIND, name);
- return (value);
-}
-
-STATIC int getQueryCB (void*handle, enum MHD_ValueKind kind, const char *key, const char *value) {
- queryHandleT *query = (queryHandleT*)handle;
-
- query->idx += snprintf (&query->msg[query->idx],query->len," %s: \'%s\',", key, value);
-}
-
-// Helper to retrieve argument from connection
-PUBLIC int getQueryAll(AFB_request * request, char *buffer, size_t len) {
- queryHandleT query;
- buffer[0] = '\0'; // start with an empty string
- query.msg= buffer;
- query.len= len;
- query.idx= 0;
-
- MHD_get_connection_values (request->connection, MHD_GET_ARGUMENT_KIND, getQueryCB, &query);
- return (len);
-}
-
// Because of POST call multiple time requestApi we need to free POST handle here
+// Note this method is called from http-svc just before closing session
PUBLIC void endPostRequest(AFB_PostHandle *postHandle) {
if (postHandle->type == AFB_POST_JSON) {
- if (verbose) fprintf(stderr, "End PostJson Request UID=%d\n", postHandle->uid);
+ // if (verbose) fprintf(stderr, "End PostJson Request UID=%d\n", postHandle->uid);
}
if (postHandle->type == AFB_POST_FORM) {
- AFB_PostHandle *postform = (AFB_PostHandle*) postHandle->private;
- if (verbose) fprintf(stderr, "End PostForm Request UID=%d\n", postHandle->uid);
-
- // call API termination callback
- if (!postHandle->private) {
- if (!postHandle->completeCB) postHandle->completeCB (postHandle->private);
- }
+ if (verbose) fprintf(stderr, "End PostForm Request UID=%d\n", postHandle->uid);
}
free(postHandle->private);
free(postHandle);
if (AFB_SESSION_NONE != plugin->apis[idx].session) {
// add client context to request
- ctxClientGet(request, plugin);
+ if (ctxClientGet(request, plugin) != AFB_SUCCESS) {
+ request->errcode=MHD_HTTP_INSUFFICIENT_STORAGE;
+ json_object_object_add(jcall, "status", json_object_new_string ("fail"));
+ json_object_object_add(jcall, "info", json_object_new_string ("Client Session Context Full !!!"));
+ json_object_object_add(request->jresp, "request", jcall);
+ return (AFB_DONE);
+ };
if (verbose) fprintf(stderr, "Plugin=[%s] Api=[%s] Middleware=[%d] Client=[0x%x] Uuid=[%s] Token=[%s]\n"
, request->plugin, request->api, plugin->apis[idx].session, request->client, request->client->uuid, request->client->token);
} else {
json_object_object_add(jcall, "uuid", json_object_new_string (request->client->uuid));
json_object_object_add(jcall, "token", json_object_new_string (request->client->token));
+ json_object_object_add(jcall, "timeout", json_object_new_int (request->config->cntxTimeout));
}
break;
} else {
json_object_object_add(jcall, "uuid", json_object_new_string (request->client->uuid));
json_object_object_add(jcall, "token", json_object_new_string (request->client->token));
+ json_object_object_add(jcall, "timeout", json_object_new_int (request->config->cntxTimeout));
}
break;
// Effectively call the API with a subset of the context
jresp = plugin->apis[idx].callback(request, context);
+
+ // handle intemediatry Post Iterates out of band
+ if ((jresp == NULL) && (request->errcode == MHD_HTTP_OK)) return (AFB_SUCCESS);
// Session close is done after the API call so API can still use session in closing API
if (AFB_SESSION_CLOSE == plugin->apis[idx].session) ctxTokenReset (request);
}
return (AFB_DONE);
}
- }
-
+ }
return (AFB_FAIL);
}
int idx;
AFB_error status;
+ if (!request->api || !request->plugin) return (AFB_FAIL);
// Search for a plugin with this urlpath
for (idx = 0; request->plugins[idx] != NULL; idx++) {
}
// No plugin was found
if (request->plugins[idx] == NULL) {
- request->jresp = jsonNewMessage(AFB_FATAL, "No Plugin=[%s]", request->plugin);
+ request->jresp = jsonNewMessage(AFB_FATAL, "No Plugin=[%s] Url=%s", request->plugin, request->url);
goto ExitOnError;
}
// plugin callback did not return a valid Json Object
- if (status != AFB_DONE) {
- request->jresp = jsonNewMessage(AFB_FATAL, "No API=[%s] for Plugin=[%s]", request->api, request->plugin);
+ if (status == AFB_FAIL) {
+ request->jresp = jsonNewMessage(AFB_FATAL, "No API=[%s] for Plugin=[%s] url=[%s]", request->api, request->plugin, request->url);
goto ExitOnError;
}
-
-
-
// Everything look OK
return (status);
AFB_request *request = (AFB_request*)postHandle->private;
AFB_PostRequest postRequest;
+ fprintf (stderr, "postHandle key=%s filename=%s len=%d mime=%s\n", key, filename, size, mimetype);
// Create and Item value for Plugin API
item.kind = kind;
// effectively call plugin API
status = findAndCallApi (request, &item);
-
// when returning no processing of postform stop
if (status != AFB_SUCCESS) return MHD_NO;
baseurl = strsep(&urlcpy2, "/");
if (baseurl == NULL) {
request->jresp = jsonNewMessage(AFB_FATAL, "Invalid API call url=[%s]", url);
+ request->errcode = MHD_HTTP_BAD_REQUEST;
+ goto Done;
}
// let's compute URL and call API
baseapi = strsep(&urlcpy2, "/");
if (baseapi == NULL) {
- request->jresp = jsonNewMessage(AFB_FATAL, "Invalid API call url=[%s]", url);
+ request->jresp = jsonNewMessage(AFB_FATAL, "Invalid API call plugin=[%s] url=[%s]", baseurl, url);
+ request->errcode = MHD_HTTP_BAD_REQUEST;
+ goto Done;
}
// build request structure
request->plugin = strdup (baseurl);
request->api = strdup (baseapi);
request->plugins= session->plugins;
-
+
+Done:
free(urlcpy1);
return (request);
}
// allocate application POST processor handle to zero
postHandle = calloc(1, sizeof (AFB_PostHandle));
postHandle->uid = postcount++; // build a UID for DEBUG
- *con_cls = postHandle; // attache POST handle to current HTTP request
+ *con_cls = postHandle; // update context with posthandle
// Let make sure we have the right encoding and a valid length
encoding = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_CONTENT_TYPE);
+
+ // We are facing an empty post let's process it as a get
+ if (encoding == NULL) {
+ request= createRequest (connection, session, url);
+ goto ProcessApiCall;
+ }
// Form post is handle through a PostProcessor and call API once per form key
if (strcasestr(encoding, FORM_CONTENT) != NULL) {
if (verbose) fprintf(stderr, "Create PostForm[uid=%d]\n", postHandle->uid);
request = createRequest (connection, session, url);
- if (request->jresp != NULL) {
- errMessage = request->jresp;
- goto ExitOnError;
- }
+ if (request->jresp != NULL) goto ProcessApiCall;
+
postHandle = malloc(sizeof (AFB_PostHandle)); // allocate application POST processor handle
postHandle->type = AFB_POST_FORM;
postHandle->pp = MHD_create_post_processor (connection, MAX_POST_SIZE, doPostIterate, postHandle);
postHandle->type = AFB_POST_JSON;
postHandle->private = malloc(contentlen + 1); // allocate memory for full POST data + 1 for '\0' enf of string
- if (verbose) fprintf(stderr, "Create PostJson[uid=%d] Size=%d\n", postHandle->uid, contentlen);
+ // if (verbose) fprintf(stderr, "Create PostJson[uid=%d] Size=%d\n", postHandle->uid, contentlen);
return MHD_YES;
} else {
// We only support Json and Form Post format
errMessage = jsonNewMessage(AFB_FATAL, "Post Date wrong type encoding=%s != %s", encoding, JSON_CONTENT);
- goto ExitOnError;
-
+ goto ExitOnError;
}
}
if (*upload_data_size) {
if (postHandle->type == AFB_POST_FORM) {
- if (verbose) fprintf(stderr, "Processing PostForm[uid=%d]\n", postHandle->uid);
+ // if (verbose) fprintf(stderr, "Processing PostForm[uid=%d]\n", postHandle->uid);
MHD_post_process (postHandle->pp, upload_data, *upload_data_size);
}
// Process JsonPost request when buffer is completed let's call API
if (postHandle->type == AFB_POST_JSON) {
- if (verbose) fprintf(stderr, "Updating PostJson[uid=%d]\n", postHandle->uid);
-
+ // if (verbose) fprintf(stderr, "Updating PostJson[uid=%d]\n", postHandle->uid);
memcpy(&postHandle->private[postHandle->len], upload_data, *upload_data_size);
postHandle->len = postHandle->len + *upload_data_size;
- *upload_data_size = 0;
}
+
+ *upload_data_size = 0;
return MHD_YES;
} else { // we have finish with Post reception let's finish the work
errMessage = request->jresp;
goto ExitOnError;
}
-
+
+ // Postform add application context handle to request
+ if (postHandle->type == AFB_POST_FORM) {
+ postRequest.data = (char*) postHandle;
+ postRequest.type = postHandle->type;
+ request->post = &postRequest;
+ }
if (postHandle->type == AFB_POST_JSON) {
- if (verbose) fprintf(stderr, "Processing PostJson[uid=%d]\n", postHandle->uid);
+ // if (verbose) fprintf(stderr, "Processing PostJson[uid=%d]\n", postHandle->uid);
param = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_CONTENT_LENGTH);
if (param) sscanf(param, "%i", &contentlen);
postRequest.type = postHandle->type;
request->post = &postRequest;
- if (verbose) fprintf(stderr, "Close Post[%d] Buffer=%s\n", postHandle->uid, request->post->data);
+ // if (verbose) fprintf(stderr, "Close Post[%d] Buffer=%s\n", postHandle->uid, request->post->data);
}
}
} else {
// this is a get we only need a request
request= createRequest (connection, session, url);
};
-
+
+ProcessApiCall:
// Request is ready let's call API without any extra handle
status = findAndCallApi (request, NULL);
-
-ExitOnResponse:
+
serialized = json_object_to_json_string(request->jresp);
webResponse = MHD_create_response_from_buffer(strlen(serialized), (void*) serialized, MHD_RESPMEM_MUST_COPY);
}
void initPlugins(AFB_session *session) {
- static AFB_plugin * plugins[10];
+ static AFB_plugin **plugins;
+ AFB_plugin* (*pluginRegisterFct)(void);
+ void *plugin;
+ char *pluginPath;
+ struct dirent *pluginDir;
+ DIR *dir;
afbJsonType = json_object_new_string (AFB_MSG_JTYPE);
- int i = 0;
-
- plugins[i++] = tokenRegister(session),
- plugins[i++] = alsaRegister(session),
- plugins[i++] = helloWorldRegister(session),
-#ifdef HAVE_RADIO_PLUGIN
- plugins[i++] = radioRegister(session),
-#endif
- plugins[i++] = NULL;
-
+ int num = 0;
+
+ /* pre-allocate for 20 plugins, we will downsize if necessary */
+ plugins = (AFB_plugin **) malloc (20*sizeof(AFB_plugin));
+
+ if ((dir = opendir(session->config->plugins)) == NULL) {
+ fprintf(stderr, "Could not open plugin directory [%s], exiting...\n", session->config->plugins);
+ exit (-1);
+ }
+
+ while ((pluginDir = readdir(dir)) != NULL) {
+
+ if (!strstr (pluginDir->d_name, ".so"))
+ continue;
+
+ asprintf (&pluginPath, "%s/%s", session->config->plugins, pluginDir->d_name);
+ plugin = dlopen (pluginPath, RTLD_NOW | RTLD_LOCAL);
+ pluginRegisterFct = dlsym (plugin, "pluginRegister");
+ free (pluginPath);
+ if (!plugin) {
+ if (verbose) fprintf(stderr, "[%s] is not loadable, continuing...\n", pluginDir->d_name);
+ continue;
+ } else if (!pluginRegisterFct) {
+ if (verbose) fprintf(stderr, "[%s] is not an AFB plugin, continuing...\n", pluginDir->d_name);
+ continue;
+ }
+
+ if (verbose) fprintf(stderr, "[%s] is a valid AFB plugin, loading it\n", pluginDir->d_name);
+ plugins[num] = (AFB_plugin *) malloc (sizeof(AFB_plugin));
+ plugins[num] = (**pluginRegisterFct)();
+ num++;
+ /* only 20 plugins are supported at that time */
+ if (num == 20) break;
+ }
+ plugins = (AFB_plugin **) realloc (plugins, (num+1)*sizeof(AFB_plugin));
+ plugins[num] = NULL;
+
+ closedir (dir);
+
+ if (plugins[0] == NULL) {
+ fprintf(stderr, "No plugins found, afb-daemon is unlikely to work in this configuration, exiting...\n");
+ exit (-1);
+ }
+
// complete plugins and save them within current sessions
session->plugins = RegisterJsonPlugins(plugins);
+ session->pluginCount = num;
}
Code Review / src / app-framework-binder.git / blobdiff