* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Contain all generic part to handle REST/API
+ *
+ * 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, void *pluginHandle) {
- static pingcount = 0;
- json_object *response;
- char query [512];
- int len;
-
- // request all query key/value
- len = getQueryAll (request, query, sizeof(query));
- if (len == 0) strcpy (query,"NoSearchQueryList");
-
- // check if we have some post data
- if (request->post == NULL) request->post="NoData";
-
- // return response to caller
- response = jsonNewMessage(AFB_SUCCESS, "Ping Binder Daemon count=%d CtxtId=%d Loa=%d query={%s} Handle=0x%x PostData: \'%s\' "
- , pingcount++, request->client->cid, request->loa, query, request->post, pluginHandle);
- 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;
+// 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) {
- MHD_get_connection_values (request->connection, MHD_GET_ARGUMENT_KIND, getQueryCB, &query);
- return (len);
-}
+ if (postHandle->type == AFB_POST_JSON) {
+ // if (verbose) fprintf(stderr, "End PostJson Request UID=%d\n", postHandle->uid);
+ }
-// Because of POST call multiple time requestApi we need to free POST handle here
-STATIC void endRequest(void *cls, struct MHD_Connection *connection, void **con_cls, enum MHD_RequestTerminationCode toe) {
- AFB_HttpPost *posthandle = *con_cls;
-
- // if post handle was used let's free everything
- if (posthandle) {
- if (verbose) fprintf(stderr, "End Post Request UID=%d\n", posthandle->uid);
- free(posthandle->data);
- free(posthandle);
+ if (postHandle->type == AFB_POST_FORM) {
+ if (verbose) fprintf(stderr, "End PostForm Request UID=%d\n", postHandle->uid);
}
+ if (postHandle->privatebuf) free(postHandle->privatebuf);
+ free(postHandle);
}
// Check of apiurl is declare in this plugin and call it
-STATIC AFB_error callPluginApi(AFB_plugin *plugin, AFB_request *request) {
- json_object *jresp, *jcall;
+STATIC AFB_error callPluginApi(AFB_request *request, int plugidx, void *context) {
+ json_object *jresp, *jcall, *jreqt;
int idx, status, sig;
+ AFB_clientCtx *clientCtx;
+ AFB_plugin *plugin = request->plugins[plugidx];
int signals[]= {SIGALRM, SIGSEGV, SIGFPE, 0};
/*---------------------------------------------------------------
+---------------------------------------------------------------- */
void pluginError (int signum) {
sigset_t sigset;
- AFB_clientCtx *context;
-
+
+
// unlock signal to allow a new signal to come
sigemptyset (&sigset);
sigaddset (&sigset, signum);
for (idx = 0; plugin->apis[idx].callback != NULL; idx++) {
if (!strcmp(plugin->apis[idx].name, request->api)) {
+ // Request was found and at least partially executed
+ jreqt = json_object_new_object();
+ json_object_get (afbJsonType); // increate jsontype reference count
+ json_object_object_add (jreqt, "jtype", afbJsonType);
+
// prepare an object to store calling values
jcall=json_object_new_object();
json_object_object_add(jcall, "prefix", json_object_new_string (plugin->prefix));
// Plugin aborted somewhere during its execution
json_object_object_add(jcall, "status", json_object_new_string ("abort"));
json_object_object_add(jcall, "info" , json_object_new_string ("Plugin broke during execution"));
- json_object_object_add(request->jresp, "request", jcall);
+ json_object_object_add(jreqt, "request", jcall);
} else {
if (request->config->apiTimeout > 0) {
for (sig=0; signals[sig] != 0; sig++) {
if (signal (signals[sig], pluginError) == SIG_ERR) {
- request->errcode = MHD_HTTP_UNPROCESSABLE_ENTITY;
- fprintf (stderr, "%s ERR: main no Signal/timeout handler installed.", configTime());
- return AFB_FAIL;
+ request->errcode = MHD_HTTP_UNPROCESSABLE_ENTITY;
+ json_object_object_add(jcall, "status", json_object_new_string ("fail"));
+ json_object_object_add(jcall, "info", json_object_new_string ("Setting Timeout Handler Failed"));
+ json_object_object_add(jreqt, "request", jcall);
+ goto ExitOnDone;
}
}
// Trigger a timer to protect from unacceptable long time execution
- alarm (request->config->apiTimeout);
+ alarm ((unsigned)request->config->apiTimeout);
}
+
+ // Out of SessionNone every call get a client context session
+ if (AFB_SESSION_NONE != plugin->apis[idx].session) {
+
+ // add client context to request
+ clientCtx = ctxClientGet(request, plugidx);
+ if (clientCtx == NULL) {
+ 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(jreqt, "request", jcall);
+ goto ExitOnDone;
+ };
+
+ if (verbose) fprintf(stderr, "Plugin=[%s] Api=[%s] Middleware=[%d] Client=[%p] Uuid=[%s] Token=[%s]\n"
+ , request->prefix, request->api, plugin->apis[idx].session, clientCtx, clientCtx->uuid, clientCtx->token);
+
+ switch(plugin->apis[idx].session) {
+
+ case AFB_SESSION_CREATE:
+ if (clientCtx->token[0] != '\0' && request->config->token[0] != '\0') {
+ request->errcode=MHD_HTTP_UNAUTHORIZED;
+ json_object_object_add(jcall, "status", json_object_new_string ("exist"));
+ json_object_object_add(jcall, "info", json_object_new_string ("AFB_SESSION_CREATE Session already exist"));
+ json_object_object_add(jreqt, "request", jcall);
+ goto ExitOnDone;
+ }
+
+ if (AFB_SUCCESS != ctxTokenCreate (clientCtx, request)) {
+ request->errcode=MHD_HTTP_UNAUTHORIZED;
+ json_object_object_add(jcall, "status", json_object_new_string ("fail"));
+ json_object_object_add(jcall, "info", json_object_new_string ("AFB_SESSION_CREATE Invalid Initial Token"));
+ json_object_object_add(jreqt, "request", jcall);
+ goto ExitOnDone;
+ } else {
+ json_object_object_add(jcall, "uuid", json_object_new_string (clientCtx->uuid));
+ json_object_object_add(jcall, "token", json_object_new_string (clientCtx->token));
+ json_object_object_add(jcall, "timeout", json_object_new_int (request->config->cntxTimeout));
+ }
+ break;
+
+
+ case AFB_SESSION_RENEW:
+ if (AFB_SUCCESS != ctxTokenRefresh (clientCtx, request)) {
+ request->errcode=MHD_HTTP_UNAUTHORIZED;
+ json_object_object_add(jcall, "status", json_object_new_string ("fail"));
+ json_object_object_add(jcall, "info", json_object_new_string ("AFB_SESSION_REFRESH Broken Exchange Token Chain"));
+ json_object_object_add(jreqt, "request", jcall);
+ goto ExitOnDone;
+ } else {
+ json_object_object_add(jcall, "uuid", json_object_new_string (clientCtx->uuid));
+ json_object_object_add(jcall, "token", json_object_new_string (clientCtx->token));
+ json_object_object_add(jcall, "timeout", json_object_new_int (request->config->cntxTimeout));
+ }
+ break;
+
+ case AFB_SESSION_CLOSE:
+ if (AFB_SUCCESS != ctxTokenCheck (clientCtx, request)) {
+ request->errcode=MHD_HTTP_UNAUTHORIZED;
+ json_object_object_add(jcall, "status", json_object_new_string ("empty"));
+ json_object_object_add(jcall, "info", json_object_new_string ("AFB_SESSION_CLOSE Not a Valid Access Token"));
+ json_object_object_add(jreqt, "request", jcall);
+ goto ExitOnDone;
+ } else {
+ json_object_object_add(jcall, "uuid", json_object_new_string (clientCtx->uuid));
+ }
+ break;
+
+ case AFB_SESSION_CHECK:
+ default:
+ // default action is check
+ if (AFB_SUCCESS != ctxTokenCheck (clientCtx, request)) {
+ request->errcode=MHD_HTTP_UNAUTHORIZED;
+ json_object_object_add(jcall, "status", json_object_new_string ("fail"));
+ json_object_object_add(jcall, "info", json_object_new_string ("AFB_SESSION_CHECK Invalid Active Token"));
+ json_object_object_add(jreqt, "request", jcall);
+ goto ExitOnDone;
+ }
+ break;
+ }
+ }
+
+ // Effectively CALL PLUGIN API with a subset of the context
+ jresp = plugin->apis[idx].callback(request, context);
- // add client context to request
- ctxClientGet(request);
+ // Store context in case it was updated by plugins
+ if (request->context != NULL) clientCtx->contexts[plugidx] = request->context;
- // Effectively call the API with a subset of the context
- jresp = plugin->apis[idx].callback(request, plugin->handle);
+ // handle intermediary 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 (clientCtx, request);
+
// API should return NULL of a valid Json Object
if (jresp == NULL) {
json_object_object_add(jcall, "status", json_object_new_string ("null"));
- json_object_object_add(request->jresp, "request", jcall);
+ json_object_object_add(jreqt, "request", jcall);
request->errcode = MHD_HTTP_NO_RESPONSE;
} else {
json_object_object_add(jcall, "status", json_object_new_string ("processed"));
- json_object_object_add(request->jresp, "request", jcall);
- json_object_object_add(request->jresp, "response", jresp);
+ json_object_object_add(jreqt, "request", jcall);
+ json_object_object_add(jreqt, "response", jresp);
}
// cancel timeout and plugin signal handle before next call
if (request->config->apiTimeout > 0) {
}
}
}
- return (AFB_DONE);
+ goto ExitOnDone;
+ }
+ }
+ return (AFB_FAIL);
+
+ExitOnDone:
+ request->jresp = jreqt;
+ return (AFB_DONE);
+}
+
+STATIC AFB_error findAndCallApi (AFB_request *request, void *context) {
+ int idx;
+ AFB_error status;
+
+ if (!request->api || !request->prefix) return (AFB_FAIL);
+
+ // Search for a plugin with this urlpath
+ for (idx = 0; request->plugins[idx] != NULL; idx++) {
+ if (!strcmp(request->plugins[idx]->prefix, request->prefix)) {
+ status =callPluginApi(request, idx, context);
+ break;
}
}
+ // No plugin was found
+ if (request->plugins[idx] == NULL) {
+ request->jresp = jsonNewMessage(AFB_FATAL, "No Plugin=[%s] Url=%s", request->prefix, request->url);
+ goto ExitOnError;
+ }
+
+ // plugin callback did not return a valid Json Object
+ if (status == AFB_FAIL) {
+ request->jresp = jsonNewMessage(AFB_FATAL, "No API=[%s] for Plugin=[%s] url=[%s]", request->api, request->prefix, request->url);
+ goto ExitOnError;
+ }
+
+ // Everything look OK
+ return (status);
+
+ExitOnError:
+ request->errcode = MHD_HTTP_UNPROCESSABLE_ENTITY;
return (AFB_FAIL);
}
+// This CB is call for every item with a form post it reformat iterator values
+// and callback Plugin API for each Item within PostForm.
+STATIC int doPostIterate (void *cls, enum MHD_ValueKind kind, const char *key,
+ const char *filename, const char *mimetype,
+ const char *encoding, const char *data, uint64_t offset,
+ size_t size) {
+
+ AFB_error status;
+ AFB_PostItem item;
+
+ // retrieve API request from Post iterator handle
+ AFB_PostHandle *postHandle = (AFB_PostHandle*)cls;
+ AFB_request *request = (AFB_request*)postHandle->privatebuf;
+ AFB_PostRequest postRequest;
+
+ if (verbose)
+ fprintf (stderr, "postHandle key=%s filename=%s len=%zu mime=%s\n", key, filename, size, mimetype);
+
+ // Create and Item value for Plugin API
+ item.kind = kind;
+ item.key = key;
+ item.filename = filename;
+ item.mimetype = mimetype;
+ item.encoding = encoding;
+ item.len = size;
+ item.data = data;
+ item.offset = offset;
+
+ // Reformat Request to make it somehow similar to GET/PostJson case
+ postRequest.data= (char*) postHandle;
+ postRequest.len = size;
+ postRequest.type= AFB_POST_FORM;;
+ request->post = &postRequest;
+
+ // effectively call plugin API
+ status = findAndCallApi (request, &item);
+ // when returning no processing of postform stop
+ if (status != AFB_SUCCESS) return MHD_NO;
+
+ // let's allow iterator to move to next item
+ return MHD_YES;
+}
+
+STATIC void freeRequest (AFB_request *request) {
-// process rest API query
-PUBLIC int doRestApi(struct MHD_Connection *connection, AFB_session *session, const char* url, const char *method
- , const char *upload_data, size_t *upload_data_size, void **con_cls) {
+ free (request->prefix);
+ free (request->api);
+ free (request);
+}
+
+STATIC AFB_request *createRequest (struct MHD_Connection *connection, AFB_session *session, const char* url) {
- static int postcount = 0; // static counter to debug POST protocol
- char *baseurl, *baseapi, *urlcpy1, *urlcpy2, *query, *token, *uuid;
- json_object *errMessage;
- AFB_error status;
- struct MHD_Response *webResponse;
- const char *serialized, parsedurl;
- AFB_request request;
- AFB_HttpPost *posthandle = *con_cls;
- AFB_clientCtx clientCtx;
- int idx, ret;
+ AFB_request *request;
+ // Start with a clean request
+ request = calloc (1, sizeof (AFB_request));
+ char *urlcpy1, *urlcpy2;
+ char *baseapi, *baseurl;
+
// Extract plugin urlpath from request and make two copy because strsep overload copy
urlcpy1 = urlcpy2 = strdup(url);
baseurl = strsep(&urlcpy2, "/");
if (baseurl == NULL) {
- errMessage = jsonNewMessage(AFB_FATAL, "Invalid API call url=[%s]", url);
- goto ExitOnError;
+ 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) {
- errMessage = jsonNewMessage(AFB_FATAL, "Invalid API call url=[%s]", url);
- goto ExitOnError;
+ 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->connection = connection;
+ request->config = session->config;
+ request->url = url;
+ request->prefix = strdup (baseurl);
+ request->api = strdup (baseapi);
+ request->plugins= session->plugins;
+ // note request->handle is fed with request->context in ctxClientGet
+
+Done:
+ free(urlcpy1);
+ return (request);
+}
+// process rest API query
+PUBLIC int doRestApi(struct MHD_Connection *connection, AFB_session *session, const char* url, const char *method
+ , const char *upload_data, size_t *upload_data_size, void **con_cls) {
+
+ static int postcount = 0; // static counter to debug POST protocol
+ json_object *errMessage;
+ AFB_error status;
+ struct MHD_Response *webResponse;
+ const char *serialized;
+ AFB_request *request;
+ AFB_PostHandle *postHandle;
+ AFB_PostRequest postRequest;
+ int ret;
+
+ // fprintf (stderr, "doRestAPI method=%s posthandle=%p\n", method, con_cls);
+
// if post data may come in multiple calls
if (0 == strcmp(method, MHD_HTTP_METHOD_POST)) {
const char *encoding, *param;
int contentlen = -1;
- AFB_HttpPost *posthandle = *con_cls;
+ postHandle = *con_cls;
- // 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);
- param = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_CONTENT_LENGTH);
- if (param) sscanf(param, "%i", &contentlen);
+ // This is the initial post event let's create form post structure POST data come in multiple events
+ if (postHandle == NULL) {
- // POST datas may come in multiple chunk. Even when it never happen on AFB, we still have to handle the case
- if (strcasestr(encoding, JSON_CONTENT) == 0) {
- errMessage = jsonNewMessage(AFB_FATAL, "Post Date wrong type encoding=%s != %s", encoding, JSON_CONTENT);
- goto ExitOnError;
- }
+ // allocate application POST processor handle to zero
+ postHandle = calloc(1, sizeof (AFB_PostHandle));
+ postHandle->uid = postcount++; // build a UID for DEBUG
+ *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) {
+ postHandle->type = AFB_POST_EMPTY;
+ return MHD_YES;
+ }
+
+ // 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 doPostIterate[uid=%d posthandle=%p]\n", postHandle->uid, postHandle);
+
+ request = createRequest (connection, session, url);
+ if (request->jresp != NULL) goto ProcessApiCall;
+ postHandle->type = AFB_POST_FORM;
+ postHandle->privatebuf = (void*)request;
+ postHandle->pp = MHD_create_post_processor (connection, MAX_POST_SIZE, &doPostIterate, postHandle);
+
+ if (NULL == postHandle->pp) {
+ fprintf(stderr,"OOPS: Internal error fail to allocate MHD_create_post_processor\n");
+ free (postHandle);
+ return MHD_NO;
+ }
+ return MHD_YES;
+ }
+
+ // POST json is store into a buffer and present in one piece to API
+ if (strcasestr(encoding, JSON_CONTENT) != NULL) {
- if (contentlen > MAX_POST_SIZE) {
- errMessage = jsonNewMessage(AFB_FATAL, "Post Date to big %d > %d", contentlen, MAX_POST_SIZE);
- goto ExitOnError;
- }
+ param = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_CONTENT_LENGTH);
+ if (param) sscanf(param, "%i", &contentlen);
+
+ // Because PostJson are build in RAM size is constrained
+ if (contentlen > MAX_POST_SIZE) {
+ errMessage = jsonNewMessage(AFB_FATAL, "Post Date to big %d > %d", contentlen, MAX_POST_SIZE);
+ goto ExitOnError;
+ }
- // In POST mode first libmicrohttp call only establishes POST handling.
- if (posthandle == NULL) {
- posthandle = malloc(sizeof (AFB_HttpPost)); // allocate application POST processor handle
- posthandle->uid = postcount++; // build a UID for DEBUG
- posthandle->len = 0; // effective length within POST handler
- posthandle->data = malloc(contentlen + 1); // allocate memory for full POST data + 1 for '\0' enf of string
- *con_cls = posthandle; // attache POST handle to current HTTP session
+ // Size is OK, let's allocate a buffer to hold post data
+ postHandle->type = AFB_POST_JSON;
+ postHandle->privatebuf = malloc((unsigned)contentlen + 1); // allocate memory for full POST data + 1 for '\0' enf of string
- if (verbose) fprintf(stderr, "Create Post[%d] Size=%d\n", posthandle->uid, contentlen);
- return MHD_YES;
+ // 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;
+ }
}
// This time we receive partial/all Post data. Note that even if we get all POST data. We should nevertheless
// return MHD_YES and not process the request directly. Otherwise Libmicrohttpd is unhappy and fails with
- // 'Internal application error, closing connection'.
+ // 'Internal application error, closing connection'.
if (*upload_data_size) {
- if (verbose) fprintf(stderr, "Update Post[%d]\n", posthandle->uid);
-
- memcpy(&posthandle->data[posthandle->len], upload_data, *upload_data_size);
- posthandle->len = posthandle->len + *upload_data_size;
+
+ if (postHandle->type == AFB_POST_FORM) {
+ // 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);
+ memcpy(&postHandle->privatebuf[postHandle->len], upload_data, *upload_data_size);
+ postHandle->len = postHandle->len + *upload_data_size;
+ }
+
*upload_data_size = 0;
return MHD_YES;
- }
+
+ } else { // we have finish with Post reception let's finish the work
+
+ // Create a request structure to finalise the request
+ request= createRequest (connection, session, url);
+ if (request->jresp != NULL) {
+ errMessage = request->jresp;
+ goto ExitOnError;
+ }
+ postRequest.type = postHandle->type;
+
+ // Postform add application context handle to request
+ if (postHandle->type == AFB_POST_FORM) {
+ postRequest.data = (char*) postHandle;
+ request->post = &postRequest;
+ }
+
+ if (postHandle->type == AFB_POST_JSON) {
+ // if (verbose) fprintf(stderr, "Processing PostJson[uid=%d]\n", postHandle->uid);
- // We should only start to process DATA after Libmicrohttpd call or application handler with *upload_data_size==0
- // At this level we're may verify that we got everything and process DATA
- if (posthandle->len != contentlen) {
- errMessage = jsonNewMessage(AFB_FATAL, "Post Data Incomplete UID=%d Len %d != %s", posthandle->uid, contentlen, posthandle->len);
- goto ExitOnError;
- }
+ param = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_CONTENT_LENGTH);
+ if (param) sscanf(param, "%i", &contentlen);
- // Before processing data, make sure buffer string is properly ended
- posthandle->data[posthandle->len] = '\0';
- request.post = posthandle->data;
+ // At this level we're may verify that we got everything and process DATA
+ if (postHandle->len != contentlen) {
+ errMessage = jsonNewMessage(AFB_FATAL, "Post Data Incomplete UID=%d Len %d != %d", postHandle->uid, contentlen, postHandle->len);
+ goto ExitOnError;
+ }
- if (verbose) fprintf(stderr, "Close Post[%d] Buffer=%s\n", posthandle->uid, request.post);
+ // Before processing data, make sure buffer string is properly ended
+ postHandle->privatebuf[postHandle->len] = '\0';
+ postRequest.data = postHandle->privatebuf;
+ request->post = &postRequest;
+ // if (verbose) fprintf(stderr, "Close Post[%d] Buffer=%s\n", postHandle->uid, request->post->data);
+ }
+ }
} else {
- request.post = NULL;
+ // this is a get we only need a request
+ request= createRequest (connection, session, url);
};
-
- // build request structure
- memset(&request, 0, sizeof (request));
- request.connection = connection;
- request.config = session->config;
- request.url = url;
- request.plugin = baseurl;
- request.api = baseapi;
- request.jresp = json_object_new_object();
-
- // increase reference count and add jtype to response
- json_object_get (afbJsonType);
- json_object_object_add (request.jresp, "jtype", afbJsonType);
-
- // Search for a plugin with this urlpath
- for (idx = 0; session->plugins[idx] != NULL; idx++) {
- if (!strcmp(session->plugins[idx]->prefix, baseurl)) {
- status =callPluginApi(session->plugins[idx], &request);
- break;
- }
- }
- // No plugin was found
- if (session->plugins[idx] == NULL) {
- errMessage = jsonNewMessage(AFB_FATAL, "No Plugin=[%s]", request.plugin);
- goto ExitOnError;
- }
- // plugin callback did not return a valid Json Object
- if (status != AFB_DONE) {
- errMessage = jsonNewMessage(AFB_FATAL, "No API=[%s] for Plugin=[%s]", request.api, request.plugin);
- goto ExitOnError;
- }
+ProcessApiCall:
+ // Request is ready let's call API without any extra handle
+ status = findAndCallApi (request, NULL);
- serialized = json_object_to_json_string(request.jresp);
+ serialized = json_object_to_json_string(request->jresp);
webResponse = MHD_create_response_from_buffer(strlen(serialized), (void*) serialized, MHD_RESPMEM_MUST_COPY);
- free(urlcpy1);
// client did not pass token on URI let's use cookies
- if ((!request.restfull) && (request.client != NULL)) {
- char cookie[64];
- snprintf (cookie, sizeof (cookie), "%s=%s", COOKIE_NAME, request.client->uuid);
+ if ((!request->restfull) && (request->context != NULL)) {
+ char cookie[256];
+ snprintf (cookie, sizeof (cookie), "%s-%d=%s; Path=%s; Max-Age=%d; HttpOnly", COOKIE_NAME, request->config->httpdPort, request->uuid, request->config->rootapi,request->config->cntxTimeout);
MHD_add_response_header (webResponse, MHD_HTTP_HEADER_SET_COOKIE, cookie);
- // if(verbose) fprintf(stderr,"Cookie: [%s]\n", cookie);
}
// if requested add an error status
- if (request.errcode != 0) ret=MHD_queue_response (connection, request.errcode, webResponse);
- else ret = MHD_queue_response(connection, MHD_HTTP_OK, webResponse);
+ if (request->errcode != 0) ret=MHD_queue_response (connection, request->errcode, webResponse);
+ else MHD_queue_response(connection, MHD_HTTP_OK, webResponse);
MHD_destroy_response(webResponse);
- json_object_put(request.jresp); // decrease reference rqtcount to free the json object
- return ret;
+ json_object_put(request->jresp); // decrease reference rqtcount to free the json object
+ freeRequest (request);
+ return MHD_YES;
ExitOnError:
- free(urlcpy1);
+ freeRequest (request);
serialized = json_object_to_json_string(errMessage);
webResponse = MHD_create_response_from_buffer(strlen(serialized), (void*) serialized, MHD_RESPMEM_MUST_COPY);
- ret = MHD_queue_response(connection, MHD_HTTP_BAD_REQUEST, webResponse);
+ MHD_queue_response(connection, MHD_HTTP_BAD_REQUEST, webResponse);
MHD_destroy_response(webResponse);
json_object_put(errMessage); // decrease reference rqtcount to free the json object
- return ret;
+ return MHD_YES;
}
// Prebuild each API jtype to boost API json response
for (jdx = 0; plugins[idx]->apis[jdx].name != NULL; jdx++) {
- AFB_privateApi *private = malloc (sizeof (AFB_privateApi));
- if (plugins[idx]->apis[jdx].private != NULL) {
- fprintf (stderr, "WARNING: plugin=%s api=%s private handle should be NULL=0x%x\n"
- ,plugins[idx]->prefix,plugins[idx]->apis[jdx].name, plugins[idx]->apis[jdx].private);
+ AFB_privateApi *privateapi = malloc (sizeof (AFB_privateApi));
+ if (plugins[idx]->apis[jdx].privateapi != NULL) {
+ fprintf (stderr, "WARNING: plugin=%s api=%s private handle should be NULL=%p\n"
+ ,plugins[idx]->prefix,plugins[idx]->apis[jdx].name, plugins[idx]->apis[jdx].privateapi);
}
- private->len = strlen (plugins[idx]->apis[jdx].name);
- private->jtype=json_object_new_string(plugins[idx]->apis[jdx].name);
- json_object_get(private->jtype); // increase reference count to make it permanent
- plugins[idx]->apis[jdx].private = private;
+ privateapi->len = (int)strlen (plugins[idx]->apis[jdx].name);
+ privateapi->jtype=json_object_new_string(plugins[idx]->apis[jdx].name);
+ json_object_get(privateapi->jtype); // increase reference count to make it permanent
+ plugins[idx]->apis[jdx].privateapi = privateapi;
}
}
}
return (plugins);
}
+STATIC void scanDirectory(char *dirpath, int dirfd, AFB_plugin **plugins, int *count) {
+ DIR *dir;
+ void *libso;
+ struct dirent pluginDir, *result;
+ AFB_plugin* (*pluginRegisterFct)(void);
+ char pluginPath[255];
+
+ // Open Directory to scan over it
+ dir = fdopendir (dirfd);
+ if (dir == NULL) {
+ fprintf(stderr, "ERROR in scanning directory\n");
+ return;
+ }
+ if (verbose) fprintf (stderr, "Scanning dir=[%s] for plugins\n", dirpath);
+
+ for (;;) {
+ readdir_r(dir, &pluginDir, &result);
+ if (result == NULL) break;
+
+ // Loop on any contained directory
+ if ((pluginDir.d_type == DT_DIR) && (pluginDir.d_name[0] != '.')) {
+ int fd = openat (dirfd, pluginDir.d_name, O_DIRECTORY);
+ char newpath[255];
+ strncpy (newpath, dirpath, sizeof(newpath));
+ strncat (newpath, "/", sizeof(newpath));
+ strncat (newpath, pluginDir.d_name, sizeof(newpath));
+
+ scanDirectory (newpath, fd, plugins, count);
+ close (fd);
+
+ } else {
+
+ // This is a file but not a plugin let's move to next directory element
+ if (!strstr (pluginDir.d_name, ".so")) continue;
+
+ // This is a loadable library let's check if it's a plugin
+ snprintf (pluginPath, sizeof(pluginPath), "%s/%s", dirpath, pluginDir.d_name);
+ libso = dlopen (pluginPath, RTLD_NOW | RTLD_LOCAL);
+
+ // Load fail we ignore this .so file
+ if (!libso) {
+ fprintf(stderr, "[%s] is not loadable, continuing...\n", pluginDir.d_name);
+ continue;
+ }
+
+ pluginRegisterFct = dlsym (libso, "pluginRegister");
+
+ if (!pluginRegisterFct) {
+ fprintf(stderr, "[%s] is not an AFB plugin, continuing...\n", pluginDir.d_name);
+ continue;
+ }
+
+ // if max plugin is reached let's stop searching
+ if (*count == AFB_MAX_PLUGINS) {
+ fprintf(stderr, "[%s] is not loaded [Max Count=%d reached]\n", pluginDir.d_name, *count);
+ continue;
+ }
+
+ if (verbose) fprintf(stderr, "[%s] is a valid AFB plugin, loading pos[%d]\n", pluginDir.d_name, *count);
+ plugins[*count] = pluginRegisterFct();
+ if (!plugins[*count]) {
+ if (verbose) fprintf(stderr, "ERROR: plugin [%s] register function failed. continuing...\n", pluginDir.d_name);
+ } else
+ *count = *count +1;
+ }
+ }
+ closedir (dir);
+}
+
void initPlugins(AFB_session *session) {
- static AFB_plugin * plugins[10];
+ AFB_plugin **plugins;
+
afbJsonType = json_object_new_string (AFB_MSG_JTYPE);
- int i = 0;
-
- plugins[i++] = afsvRegister(session),
- plugins[i++] = dbusRegister(session),
- plugins[i++] = alsaRegister(session),
-#ifdef HAVE_RADIO_PLUGIN
- plugins[i++] = radioRegister(session),
-#endif
- plugins[i++] = NULL;
+ int count = 0;
+ char *dirpath;
+ int dirfd;
+
+ /* pre-allocate for AFB_MAX_PLUGINS plugins, we will downsize later */
+ plugins = (AFB_plugin **) malloc (AFB_MAX_PLUGINS *sizeof(AFB_plugin*));
+
+ // Loop on every directory passed in --plugins=xxx
+ while ((dirpath = strsep(&session->config->ldpaths, ":"))) {
+ // Ignore any directory we fail to open
+ if ((dirfd = open(dirpath, O_DIRECTORY)) <= 0) {
+ fprintf(stderr, "Invalid directory path=[%s]\n", dirpath);
+ continue;
+ }
+ scanDirectory (dirpath, dirfd, plugins, &count);
+ close (dirfd);
+ }
+
+ if (count == 0) {
+ fprintf(stderr, "No plugins found, afb-daemon is unlikely to work in this configuration, exiting...\n");
+ exit (-1);
+ }
+ // downsize structure to effective number of loaded plugins
+ plugins = (AFB_plugin **)realloc (plugins, (unsigned)(count+1)*sizeof(AFB_plugin*));
+ plugins[count] = NULL;
+
// complete plugins and save them within current sessions
session->plugins = RegisterJsonPlugins(plugins);
+ session->config->pluginCount = count;
}
Code Review / src / app-framework-binder.git / blobdiff