* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#define _GNU_SOURCE
#include <stdio.h>
+#include <json.h>
-#include "local-def.h"
+#include "afb-plugin.h"
+#include "afb-req-itf.h"
typedef struct {
/*
// Plugin handle should not be in stack (malloc or static)
-STATIC MyPluginHandleT global_handle;
+static MyPluginHandleT global_handle;
// This function is call at session open time. Any client trying to
// call it with an already open session will be denied.
// Ex: http://localhost:1234/api/context/create?token=123456789
-STATIC json_object* myCreate (AFB_request *request) {
- json_object *jresp;
-
- MyClientContextT *ctx= malloc (sizeof (MyClientContextT));
+static void myCreate (struct afb_req request)
+{
+ MyClientContextT *ctx = malloc (sizeof (MyClientContextT));
MyPluginHandleT *handle = (MyPluginHandleT*) &global_handle;
// store something in our plugin private client context
ctx->count = 0;
ctx->abcd = "SomeThingUseful";
- request->context = ctx;
- jresp = jsonNewMessage(AFB_SUCCESS, "SUCCESS: create client context for plugin [%s]", handle->anythingYouWant);
-
- return jresp;
+ *request.context = ctx;
+ afb_req_success_f(request, NULL, "SUCCESS: create client context for plugin [%s]", handle->anythingYouWant);
}
// This function can only be called with a valid token. Token should be renew before
// session timeout a standard renew api is avaliable at /api/token/renew this API
// can be called automatically with <token-renew> HTML5 widget.
// ex: http://localhost:1234/api/context/action?token=xxxxxx-xxxxxx-xxxxx-xxxxx-xxxxxx
-STATIC json_object* myAction (AFB_request *request) {
- json_object* jresp;
+static void myAction (struct afb_req request)
+{
MyPluginHandleT *handle = (MyPluginHandleT*) &global_handle;
- MyClientContextT *ctx= (MyClientContextT*) request->context;
+ MyClientContextT *ctx = (MyClientContextT*) *request.context;
// store something in our plugin private client context
ctx->count++;
- jresp = jsonNewMessage(AFB_SUCCESS, "SUCCESS: plugin [%s] Check=[%d]\n", handle->anythingYouWant, ctx->count);
-
- return jresp;
+ afb_req_success_f(request, NULL, "SUCCESS: plugin [%s] Check=[%d]\n", handle->anythingYouWant, ctx->count);
}
// After execution of this function, client session will be close and if they
// created a context [request->context != NULL] every plugins will be notified
// that they should free context resources.
// ex: http://localhost:1234/api/context/close?token=xxxxxx-xxxxxx-xxxxx-xxxxx-xxxxxx
-STATIC json_object* myClose (AFB_request *request) {
- json_object* jresp;
+static void myClose (struct afb_req request)
+{
MyPluginHandleT *handle = (MyPluginHandleT*) &global_handle;
- MyClientContextT *ctx= (MyClientContextT*) request->context;
+ MyClientContextT *ctx = (MyClientContextT*) *request.context;
// store something in our plugin private client context
ctx->count++;
- jresp = jsonNewMessage(AFB_SUCCESS, "SUCCESS: plugin [%s] Close=[%d]\n", handle->anythingYouWant, ctx->count);
-
- // Note Context resource should be free in FreeCtxCB and not here in case session timeout.
- return jresp;
+ afb_req_success_f(request, NULL, "SUCCESS: plugin [%s] Close=[%d]\n", handle->anythingYouWant, ctx->count);
}
-STATIC void freeCtxCB (MyClientContextT *ctx) {
+static void freeCtxCB (MyClientContextT *ctx) {
MyPluginHandleT *handle = (MyPluginHandleT*) &global_handle;
fprintf (stderr, "FreeCtxCB Plugin=[%s] count=[%d]", (char*)handle->anythingYouWant, ctx->count);
free (ctx);
// NOTE: this sample does not use session to keep test a basic as possible
// in real application most APIs should be protected with AFB_SESSION_CHECK
-STATIC AFB_restapi pluginApis[]= {
- {"create", AFB_SESSION_CREATE, (AFB_apiCB)myCreate , "Create a new session"},
- {"action", AFB_SESSION_CHECK , (AFB_apiCB)myAction , "Use Session Context"},
- {"close" , AFB_SESSION_CLOSE , (AFB_apiCB)myClose , "Free Context"},
+static const struct AFB_restapi pluginApis[]= {
+ {"create", AFB_SESSION_CREATE, myCreate , "Create a new session"},
+ {"action", AFB_SESSION_CHECK , myAction , "Use Session Context"},
+ {"close" , AFB_SESSION_CLOSE , myClose , "Free Context"},
{NULL}
};
-PUBLIC AFB_plugin *pluginRegister () {
-
- AFB_plugin *plugin = malloc (sizeof (AFB_plugin));
- plugin->type = AFB_PLUGIN_JSON;
- plugin->info = "Sample of Client Context Usage";
- plugin->prefix = "context";
- plugin->apis = pluginApis;
- plugin->freeCtxCB= (AFB_freeCtxCB) freeCtxCB;
-
- // feed plugin handle before returning from registration
- global_handle.anythingYouWant = "My Plugin Handle";
-
- return (plugin);
+static const struct AFB_plugin plugin_desc = {
+ .type = AFB_PLUGIN_JSON,
+ .info = "Sample of Client Context Usage",
+ .prefix = "context",
+ .apis = pluginApis,
+ .freeCtxCB = (void*)freeCtxCB
};
+
+const struct AFB_plugin *pluginRegister ()
+{
+ return &plugin_desc;
+}
+
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define _GNU_SOURCE
-
#include <stdio.h>
#include <string.h>
+#include <json.h>
-#include "local-def.h"
+#include "afb-plugin.h"
#include "afb-req-itf.h"
-static json_object* ping (AFB_request *request, json_object *jresp) {
+typedef struct queryHandleT {
+ char *msg;
+ size_t idx;
+ size_t len;
+} queryHandleT;
+
+static int getQueryCB (queryHandleT *query, struct afb_arg arg) {
+ if (query->idx >= query->len)
+ return 0;
+ query->idx += (unsigned)snprintf (&query->msg[query->idx], query->len-query->idx, " %s: %s\'%s\',", arg.name, arg.is_file?"FILE=":"", arg.value);
+ return 1; /* continue to iterate */
+}
+
+// Helper to retrieve argument from connection
+static size_t getQueryAll(struct afb_req 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;
+
+ afb_req_iterate(request, (void*)getQueryCB, &query);
+ buffer[len-1] = 0;
+ return query.idx >= len ? len - 1 : query.idx;
+}
+
+static void ping (struct afb_req request, json_object *jresp)
+{
static int pingcount = 0;
char query [512];
size_t len;
// return response to caller
// response = jsonNewMessage(AFB_SUCCESS, "Ping Binder Daemon %d query={%s}", pingcount++, query);
- afb_req_success_f(*request->areq, jresp, "Ping Binder Daemon %d query={%s}", pingcount++, query);
+ afb_req_success_f(request, jresp, "Ping Binder Daemon %d query={%s}", pingcount++, query);
- if (verbose) fprintf(stderr, "%d: \n", pingcount);
- return jresp;
+ fprintf(stderr, "%d: \n", pingcount);
+}
+
+static void pingSample (struct afb_req request)
+{
+ ping(request, json_object_new_string ("Some String"));
}
-static json_object* pingSample (AFB_request *request) {
- return ping(request, json_object_new_string ("Some String"));
+static void pingFail (struct afb_req request)
+{
+ afb_req_fail(request, "failed", "Ping Binder Daemon fails");
}
-static json_object* pingFail (AFB_request *request) {
- return ping(request, NULL);
+static void pingNull (struct afb_req request)
+{
+ ping(request, NULL);
}
-static json_object* pingBug (AFB_request *request) {
+static void pingBug (struct afb_req request)
+{
int a,b,c;
fprintf (stderr, "Use --timeout=10 to trap error\n");
c=0;
a=b/c;
- // should never return
- return NULL;
}
// For samples https://linuxprograms.wordpress.com/2010/05/20/json-c-libjson-tutorial/
-static json_object* pingJson (AFB_request *request) {
+static void pingJson (struct afb_req request) {
json_object *jresp, *embed;
jresp = json_object_new_object();
json_object_object_add(jresp,"eobj", embed);
- return ping(request, jresp);
+ ping(request, jresp);
}
// NOTE: this sample does not use session to keep test a basic as possible
// in real application most APIs should be protected with AFB_SESSION_CHECK
-static AFB_restapi pluginApis[]= {
- {"ping" , AFB_SESSION_NONE, (AFB_apiCB)pingSample , "Ping Application Framework"},
- {"pingnull" , AFB_SESSION_NONE, (AFB_apiCB)pingFail , "Return NULL"},
- {"pingbug" , AFB_SESSION_NONE, (AFB_apiCB)pingBug , "Do a Memory Violation"},
- {"pingJson" , AFB_SESSION_NONE, (AFB_apiCB)pingJson , "Return a JSON object"},
+static const struct AFB_restapi pluginApis[]= {
+ {"ping" , AFB_SESSION_NONE, pingSample , "Ping Application Framework"},
+ {"pingfail" , AFB_SESSION_NONE, pingFail , "Fails"},
+ {"pingnull" , AFB_SESSION_NONE, pingNull , "Return NULL"},
+ {"pingbug" , AFB_SESSION_NONE, pingBug , "Do a Memory Violation"},
+ {"pingJson" , AFB_SESSION_NONE, pingJson , "Return a JSON object"},
{NULL}
};
-static const AFB_plugin plugin = {
+static const struct AFB_plugin plugin_desc = {
.type = AFB_PLUGIN_JSON,
.info = "Minimal Hello World Sample",
.prefix = "hello",
.apis = pluginApis
};
-const AFB_plugin *pluginRegister () {
- return &plugin;
-};
+const struct AFB_plugin *pluginRegister ()
+{
+ return &plugin_desc;
+}
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#define _GNU_SOURCE
#include <stdio.h>
+#include <json.h>
-#include "local-def.h"
+#include "afb-plugin.h"
+#include "afb-req-itf.h"
// Dummy sample of Client Application Context
typedef struct {
// Request Creation of new context if it does not exist
-STATIC json_object* clientContextCreate (AFB_request *request) {
+static void clientContextCreate (struct afb_req request)
+{
json_object *jresp;
// add an application specific client context to session
- request->context = malloc (sizeof (MyClientApplicationHandle));
+ *request.context = 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);
+ afb_req_success(request, jresp, NULL);
}
// Before entering here token will be check and renew
-STATIC json_object* clientContextRefresh (AFB_request *request) {
+static void clientContextRefresh (struct afb_req request) {
json_object *jresp;
jresp = json_object_new_object();
json_object_object_add(jresp, "token", json_object_new_string ("Token was refreshed"));
- return (jresp);
+ afb_req_success(request, jresp, NULL);
}
// Session token will we verified before entering here
-STATIC json_object* clientContextCheck (AFB_request *request) {
+static void clientContextCheck (struct afb_req request) {
json_object *jresp = json_object_new_object();
json_object_object_add(jresp, "isvalid", json_object_new_boolean (TRUE));
- return (jresp);
+ afb_req_success(request, jresp, NULL);
}
// Close and Free context
-STATIC json_object* clientContextReset (AFB_request *request) {
+static void clientContextReset (struct afb_req request) {
json_object *jresp;
/* after this call token will be reset
jresp = json_object_new_object();
json_object_object_add(jresp, "info", json_object_new_string ("Token and all resources are released"));
- // WARNING: if you free context resource manually here do not forget to set request->context=NULL;
- return (jresp);
+ // WARNING: if you free context resource manually here do not forget to set *request.context=NULL;
+ afb_req_success(request, jresp, NULL);
}
// Close and Free context
-STATIC json_object* clientGetPing (AFB_request *request) {
+static void clientGetPing (struct afb_req request) {
static int count=0;
json_object *jresp;
jresp = json_object_new_object();
json_object_object_add(jresp, "count", json_object_new_int (count ++));
- return (jresp);
+ afb_req_success(request, jresp, NULL);
}
// This function is call when Client Session Context is removed
// Note: when freeCtxCB==NULL standard free/malloc is called
-STATIC void clientContextFree(void *context) {
+static void clientContextFree(void *context) {
fprintf (stderr,"Plugin[token] Closing Session\n");
free (context);
}
-STATIC AFB_restapi pluginApis[]= {
- {"ping" , AFB_SESSION_NONE , (AFB_apiCB)clientGetPing ,"Ping Rest Test Service"},
- {"create" , AFB_SESSION_CREATE, (AFB_apiCB)clientContextCreate ,"Request Client Context Creation"},
- {"refresh" , AFB_SESSION_RENEW , (AFB_apiCB)clientContextRefresh,"Refresh Client Context Token"},
- {"check" , AFB_SESSION_CHECK , (AFB_apiCB)clientContextCheck ,"Check Client Context Token"},
- {"reset" , AFB_SESSION_CLOSE , (AFB_apiCB)clientContextReset ,"Close Client Context and Free resources"},
+static const struct AFB_restapi pluginApis[]= {
+ {"ping" , AFB_SESSION_NONE , clientGetPing ,"Ping Rest Test Service"},
+ {"create" , AFB_SESSION_CREATE, clientContextCreate ,"Request Client Context Creation"},
+ {"refresh" , AFB_SESSION_RENEW , clientContextRefresh,"Refresh Client Context Token"},
+ {"check" , AFB_SESSION_CHECK , clientContextCheck ,"Check Client Context Token"},
+ {"reset" , AFB_SESSION_CLOSE , clientContextReset ,"Close Client Context and Free resources"},
{NULL}
};
-PUBLIC AFB_plugin *pluginRegister () {
- AFB_plugin *plugin = malloc (sizeof (AFB_plugin));
- plugin->type = AFB_PLUGIN_JSON;
- plugin->info = "Application Framework Binder Service";
- plugin->prefix= "token"; // url base
- plugin->apis = pluginApis;
- plugin->freeCtxCB= (void*) clientContextFree;
-
- return (plugin);
+static const struct AFB_plugin plugin_desc = {
+ .type = AFB_PLUGIN_JSON,
+ .info = "Application Framework Binder Service",
+ .prefix = "token",
+ .apis = pluginApis,
+ .freeCtxCB = clientContextFree
};
+
+const struct AFB_plugin *pluginRegister ()
+{
+ return &plugin_desc;
+}
+++ /dev/null
-/*
- * Copyright (C) 2016 "IoT.bzh"
- * Author "Fulup Ar Foll"
- * Author José Bollo <jose.bollo@iot.bzh>
- *
- * 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/>.
- *
- * Contain all generic part to handle REST/API
- *
- * https://www.gnu.org/software/libmicrohttpd/tutorial.html [search 'largepost.c']
- */
-
-#define _GNU_SOURCE
-
-#include "../include/local-def.h"
-
-#include <dirent.h>
-#include <dlfcn.h>
-#include <setjmp.h>
-#include <signal.h>
-
-#include "afb-apis.h"
-#include "session.h"
-
-#define AFB_MSG_JTYPE "AJB_reply"
-
-#define JSON_CONTENT "application/json"
-#define FORM_CONTENT MHD_HTTP_POST_ENCODING_MULTIPART_FORMDATA
-
-static json_object *afbJsonType;
-
-// 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 (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 doCallPluginApi(AFB_request * request, int apiidx, int verbidx, void *context)
-{
- enum AFB_sessionE session;
- json_object *jresp, *jcall, *jreqt;
- AFB_clientCtx *clientCtx = NULL;
-
- // Request was found and at least partially executed
- jreqt = json_object_new_object();
- json_object_object_add(jreqt, "jtype", json_object_get(afbJsonType));
-
- // prepare an object to store calling values
- jcall = json_object_new_object();
- json_object_object_add(jcall, "prefix", json_object_new_string(request->prefix));
- json_object_object_add(jcall, "api", json_object_new_string(request->method));
-
- // Out of SessionNone every call get a client context session
- session = afb_apis_get(apiidx, verbidx)->session;
- if (AFB_SESSION_NONE != session) {
-
- // add client context to request
- clientCtx = ctxClientGet(request);
- if (clientCtx == NULL) {
- request->errcode = MHD_HTTP_INSUFFICIENT_STORAGE;
- json_add_status(jcall, "fail", "Client Session Context Full !!!");
- json_object_object_add(jreqt, "request", jcall);
- goto ExitOnDone;
- }
- request->context = clientCtx->contexts[apiidx];
- request->uuid = clientCtx->uuid;
-
- if (verbose)
- fprintf(stderr, "Plugin=[%s] Api=[%s] Middleware=[%d] Client=[%p] Uuid=[%s] Token=[%s]\n", request->prefix, request->method, session, clientCtx, clientCtx->uuid, clientCtx->token);
-
- switch (session) {
-
- case AFB_SESSION_CREATE:
- if (clientCtx->token[0] != '\0' && request->config->token[0] != '\0') {
- request->errcode = MHD_HTTP_UNAUTHORIZED;
- json_add_status(jcall, "exist", "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_add_status(jcall, "fail", "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_add_status(jcall, "fail", "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_add_status(jcall, "fail", "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_add_status(jcall, "fail", "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 = afb_apis_get(apiidx, verbidx)->callback(request, context);
-
- // Store context in case it was updated by plugins
- if (request->context != NULL)
- clientCtx->contexts[apiidx] = request->context;
-
- // 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 == 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(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(jreqt, "request", jcall);
- json_object_object_add(jreqt, "response", jresp);
- }
-
-ExitOnDone:
- request->jresp = jreqt;
- return AFB_DONE;
-}
-
-// Check of apiurl is declare in this plugin and call it
-extern __thread sigjmp_buf *error_handler;
-static AFB_error callPluginApi(AFB_request * request, int apiidx, int verbidx, void *context)
-{
- sigjmp_buf jmpbuf, *older;
-
- json_object *jcall, *jreqt;
- int status;
-
- // save context before calling the API
- status = setjmp(jmpbuf);
- if (status != 0) {
-
- // Request was found and at least partially executed
- jreqt = json_object_new_object();
- json_object_object_add(jreqt, "jtype", json_object_get(afbJsonType));
-
- // prepare an object to store calling values
- jcall = json_object_new_object();
- json_object_object_add(jcall, "prefix", json_object_new_string(request->prefix));
- json_object_object_add(jcall, "api", json_object_new_string(request->method));
-
- // 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(jreqt, "request", jcall);
- request->jresp = jreqt;
- } else {
-
- // Trigger a timer to protect from unacceptable long time execution
- if (request->config->apiTimeout > 0)
- alarm((unsigned)request->config->apiTimeout);
-
- older = error_handler;
- error_handler = &jmpbuf;
- doCallPluginApi(request, apiidx, verbidx, context);
- error_handler = older;
-
- // cancel timeout and plugin signal handle before next call
- alarm(0);
- }
- return AFB_DONE;
-}
-
-STATIC AFB_error findAndCallApi(AFB_request * request, void *context)
-{
- int apiidx, verbidx;
- AFB_error status;
-
- if (!request->method || !request->prefix)
- return AFB_FAIL;
-
- /* get the plugin if any */
- apiidx = afb_apis_get_apiidx(request->prefix, 0);
- if (apiidx < 0) {
- request->jresp = jsonNewMessage(AFB_FATAL, "No Plugin=[%s] Url=%s", request->prefix, request->url);
- request->errcode = MHD_HTTP_UNPROCESSABLE_ENTITY;
- return AFB_FAIL;
- }
-
- /* get the verb if any */
- verbidx = afb_apis_get_verbidx(apiidx, request->method);
- if (verbidx < 0) {
- request->jresp = jsonNewMessage(AFB_FATAL, "No API=[%s] for Plugin=[%s] url=[%s]", request->method, request->prefix, request->url);
- request->errcode = MHD_HTTP_UNPROCESSABLE_ENTITY;
- return AFB_FAIL;
- }
-
- /* Search for a plugin with this urlpath */
- status = callPluginApi(request, apiidx, verbidx, context);
-
- /* 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->method, request->prefix, request->url);
- request->errcode = MHD_HTTP_UNPROCESSABLE_ENTITY;
- return AFB_FAIL;
- }
- // Everything look OK
- return status;
-}
-
-// 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)
-{
-
- free((void*)request->prefix);
- free((void*)request->method);
- free(request);
-}
-
-STATIC AFB_request *createRequest(struct MHD_Connection *connection, AFB_session * session, const char *url)
-{
-
- 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) {
- 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 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->method = strdup(baseapi);
-
- Done:
- free(urlcpy1);
- return (request);
-}
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-static int doRestApiPost(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 = NULL;
- 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
- const char *encoding, *param;
- int contentlen = -1;
- postHandle = *con_cls;
-
- // This is the initial post event let's create form post structure POST data come in multiple events
- if (postHandle == NULL) {
-
- // 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) {
-
- 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;
- }
- // 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 PostJson[uid=%d] Size=%d\n", postHandle->uid, contentlen);
- return MHD_YES;
-
- }
- // 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'.
- if (*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;
-
- }
-
- if (postHandle->type == AFB_POST_FORM)
- request = postHandle->privatebuf;
- else
- // 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);
-
- param = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_CONTENT_LENGTH);
- if (param)
- sscanf(param, "%i", &contentlen);
-
- // 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;
- }
- // 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);
- }
-
- ProcessApiCall:
- // Request is ready let's call API without any extra handle
- status = findAndCallApi(request, NULL);
-
- serialized = json_object_to_json_string(request->jresp);
- webResponse = MHD_create_response_from_buffer(strlen(serialized), (void *)serialized, MHD_RESPMEM_MUST_COPY);
-
- // client did not pass token on URI let's use cookies
- 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 requested add an error status
- 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
- freeRequest(request);
- return MHD_YES;
-
- ExitOnError:
- freeRequest(request);
- serialized = json_object_to_json_string(errMessage);
- webResponse = MHD_create_response_from_buffer(strlen(serialized), (void *)serialized, MHD_RESPMEM_MUST_COPY);
- 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 MHD_YES;
-}
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-static int doRestApiGet(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)
-{
- AFB_error status;
- struct MHD_Response *webResponse;
- const char *serialized;
- AFB_request *request = NULL;
- int ret;
-
- // fprintf (stderr, "doRestAPI method=%s posthandle=%p\n", method, con_cls);
-
- // if post data may come in multiple calls
- // this is a get we only need a request
- request = createRequest(connection, session, url);
-
- // Request is ready let's call API without any extra handle
- status = findAndCallApi(request, NULL);
-
- serialized = json_object_to_json_string(request->jresp);
- webResponse = MHD_create_response_from_buffer(strlen(serialized), (void *)serialized, MHD_RESPMEM_MUST_COPY);
-
- // client did not pass token on URI let's use cookies
- 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 requested add an error status
- 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
- freeRequest(request);
- return MHD_YES;
-}
-
-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)
-{
- int rc;
-
- if (afbJsonType == NULL)
- afbJsonType = json_object_new_string (AFB_MSG_JTYPE);
-
- if (0 == strcmp(method, MHD_HTTP_METHOD_POST)) {
- rc = doRestApiPost(connection, session, url, method, upload_data, upload_data_size, con_cls);
- } else {
- rc = doRestApiGet(connection, session, url, method, upload_data, upload_data_size, con_cls);
- }
- return rc;
-}
-
Code Review / src / app-framework-binder.git / commitdiff