X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Frest-api.c;h=a1bf039b6ee26a2b285c658a2763e0875bec6303;hb=02492357cce066201a11993255120119c2703af1;hp=ad3a4f2238a597961af3233fc4e8a6d2cb7b4a05;hpb=4e43e3b53482bff8cb835271eb3207aeaf593812;p=src%2Fapp-framework-binder.git diff --git a/src/rest-api.c b/src/rest-api.c index ad3a4f22..a1bf039b 100644 --- a/src/rest-api.c +++ b/src/rest-api.c @@ -17,95 +17,33 @@ * * 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 +#include #include #include #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); @@ -178,7 +116,13 @@ STATIC AFB_error callPluginApi(AFB_plugin *plugin, AFB_request *request, void *c 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); @@ -203,6 +147,7 @@ STATIC AFB_error callPluginApi(AFB_plugin *plugin, AFB_request *request, void *c } 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; @@ -217,6 +162,7 @@ STATIC AFB_error callPluginApi(AFB_plugin *plugin, AFB_request *request, void *c } 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; @@ -248,6 +194,9 @@ STATIC AFB_error callPluginApi(AFB_plugin *plugin, AFB_request *request, void *c // 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); @@ -273,8 +222,7 @@ STATIC AFB_error callPluginApi(AFB_plugin *plugin, AFB_request *request, void *c } return (AFB_DONE); } - } - + } return (AFB_FAIL); } @@ -297,13 +245,10 @@ STATIC AFB_error findAndCallApi (AFB_request *request, void *context) { } // plugin callback did not return a valid Json Object - if (status != AFB_DONE) { + if (status == AFB_FAIL) { request->jresp = jsonNewMessage(AFB_FATAL, "No API=[%s] for Plugin=[%s]", request->api, request->plugin); goto ExitOnError; } - - - // Everything look OK return (status); @@ -328,6 +273,7 @@ doPostIterate (void *cls, enum MHD_ValueKind kind, const char *key, 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; @@ -347,7 +293,6 @@ doPostIterate (void *cls, enum MHD_ValueKind kind, const char *key, // effectively call plugin API status = findAndCallApi (request, &item); - // when returning no processing of postform stop if (status != AFB_SUCCESS) return MHD_NO; @@ -422,10 +367,16 @@ PUBLIC int doRestApi(struct MHD_Connection *connection, AFB_session *session, co // 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) { @@ -465,14 +416,13 @@ PUBLIC int doRestApi(struct MHD_Connection *connection, AFB_session *session, co 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; } } @@ -482,18 +432,18 @@ PUBLIC int doRestApi(struct MHD_Connection *connection, AFB_session *session, co 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 @@ -504,10 +454,16 @@ PUBLIC int doRestApi(struct MHD_Connection *connection, AFB_session *session, co 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); @@ -524,18 +480,18 @@ PUBLIC int doRestApi(struct MHD_Connection *connection, AFB_session *session, co 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); @@ -608,18 +564,58 @@ STATIC AFB_plugin ** RegisterJsonPlugins(AFB_plugin **plugins) { } 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++] = afsvRegister(session), - plugins[i++] = dbusRegister(session), - plugins[i++] = alsaRegister(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; }