removed unused files and useless subdirectories

Change-Id: Ie0ebe0104589ff99ae24c7410a484eeef18821e7
Signed-off-by: Loïc Collignon <loic.collignon@iot.bzh>

1 files changed, 0 insertions, 812 deletions

diff --git a/agl-identity-service/src/oidc-agent.c b/agl-identity-service/src/oidc-agent.c
deleted file mode 100644
index 1f09e7a..0000000
--- a/agl-identity-service/src/oidc-agent.c
+++ /dev/null
@@ -1,812 +0,0 @@
-/*
- * Copyright (C) 2017 "IoT.bzh"
- * Author: José Bollo <jose.bollo@iot.bzh>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define _GNU_SOURCE
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <string.h>
-#include <pthread.h>
-
-#include <json-c/json.h>
-
-#include "oidc-agent.h"
-#include "escape.h"
-#include "curl-wrap.h"
-
-/***************** utilities *************************/
-
-static const char string_empty[] = "";
-static const char string_authorization_endpoint[] = "authorization_endpoint";
-static const char string_token_endpoint[] = "token_endpoint";
-#if 0
-static const char string_issuer[] = "issuer";
-static const char string_userinfo_endpoint[] = "userinfo_endpoint";
-static const char string_revocation_endpoint[] = "revocation_endpoint";
-static const char string_jwks_uri[] = "jwks_uri";
-#endif
-
-#define MAX_IDP_COUNT     20
-#define MAX_APPLI_COUNT   100
-
-static struct json_object *idps;
-static struct json_object *applis;
-
-static pthread_rwlock_t rwlock = PTHREAD_RWLOCK_INITIALIZER;
-
-/***************** utilities *************************/
-
-/*
- * Get the object of 'name' in the 'container' and return it.
- * Creates the result if needed and add it to the container.
- * When 'maxcount' isn't zero the final count will not exceed 'maxcount'.
- */
-static struct json_object *j_container_item(struct json_object *container, const char *name, int maxcount)
-{
-	struct json_object *result;
-
-	/* ensure object of 'name' exists */
-	if (!json_object_object_get_ex(container, name, &result)) {
-		if (maxcount && json_object_object_length(container) >= maxcount)
-			return NULL;
-		result = json_object_new_object();
-		if (!result)
-			return NULL;
-		json_object_object_add (container, name, result);
-	}
-	return result;
-}
-
-/*
- * Like 'j_container_item' but also creates the 'container' if needed.
- */
-static struct json_object *j_container_item_make(struct json_object **container, const char *name, int maxcount)
-{
-	struct json_object *cont;
-
-	/* ensure container exists */
-	cont = *container;
-	if (!cont) {
-		cont = json_object_new_object();
-		if (!cont)
-			return NULL;
-		*container = cont;
-	}
-	return j_container_item(cont, name, maxcount);
-}
-
-/*
- * Adds in 'dest' the fields of 'src'
- * Also when the value of a field of 'src' is null, delete the field of 'dst'
- */
-static void j_merge(struct json_object *dest, struct json_object *src)
-{
-	struct json_object_iter i;
-	json_object_object_foreachC(src, i) {
-		if (json_object_is_type(i.val, json_type_null))
-			json_object_object_del(dest, i.key);	
-		else
-			json_object_object_add(dest, i.key, json_object_get(i.val));
-	}
-}
-
-/***************** IDP **************************/
-
-/*
- * Set the values of 'desc' for the idp of 'name'.
- * Return 0 on error or 1 on success.
- */
-int oidc_idp_set(const char *name, struct json_object *desc)
-{
-	struct json_object *idp;
-	int result = 0;
-
-	pthread_rwlock_wrlock(&rwlock);
-	idp = j_container_item_make(&idps, name, MAX_IDP_COUNT);
-	if (idp) {
-		j_merge(idp, desc);
-		result = 1;
-	}
-	pthread_rwlock_unlock(&rwlock);
-	return result;
-}
-
-/*
- * Return 1 if idp of 'name' exists or 0 otherwise.
- */
-int oidc_idp_exists(const char *name)
-{
-	int result;
-
-	pthread_rwlock_rdlock(&rwlock);
-	result = json_object_object_get_ex(idps, name, NULL);
-	pthread_rwlock_unlock(&rwlock);
-
-	return result;
-}
-
-/*
- * Deletes the idp of 'name'.
- */
-void oidc_idp_delete(const char *name)
-{
-	pthread_rwlock_wrlock(&rwlock);
-	json_object_object_del(idps, name);
-	pthread_rwlock_unlock(&rwlock);
-}
-
-/***************** APPLI **************************/
-
-/*
- * Returns the name of the idp of the 'appli'.
- * Returns NULL when appli isn't set or default idp isn't set.
- */
-static const char *get_default_idp(const char *appli)
-{
-	struct json_object *a, *i;
-
-	if (!json_object_object_get_ex(applis, appli, &a))
-		return NULL;
-	if (!json_object_object_get_ex(a, string_empty, &i))
-		return NULL;
-	return json_object_get_string(i);
-}
-
-/*
- * Returns the application data related to the 'appli' for the 'idp'.
- * If 'ja' isn't null, returns in it the object for the application 'appli'.
- * Returns NULL in case of error.
- */
-static struct json_object *get_appli_idp(const char *appli, const char *idp, struct json_object **ja)
-{
-	struct json_object *a, *i;
-
-	if (!json_object_object_get_ex(applis, appli, &a) || !json_object_object_get_ex(a, idp, &i))
-		return NULL;
-	if (ja)
-		*ja = a;
-	return i;
-}
-
-/*
- * Set the description 'desc' for the application of 'name' and
- * the 'idp'. When 'make_default' is set it, make it the default idp
- * for the application.
- * Return 0 on error or 1 on success.
- */
-int oidc_appli_set(const char *name, const char *idp, struct json_object *desc, int make_default)
-{
-	struct json_object *a, *ai;
-	int result = 0;
-
-	pthread_rwlock_wrlock(&rwlock);
-	a = j_container_item_make(&applis, name, MAX_APPLI_COUNT);
-	if (a) {
-		ai = j_container_item(a, idp, 0);
-		if (ai) {
-			j_merge(ai, desc);
-			if (make_default || !json_object_object_get_ex(a, string_empty, NULL))
-				json_object_object_add(a, string_empty, json_object_new_string(idp));
-			result = 1;
-		}
-	}
-	pthread_rwlock_unlock(&rwlock);
-	return result;
-}
-
-/*
- * Is the appli of 'name' defined?
- * Return 1 if answer is yes or 0 for no.
- */
-int oidc_appli_exists(const char *name)
-{
-	int result;
-
-	pthread_rwlock_rdlock(&rwlock);
-	result = json_object_object_get_ex(applis, name, NULL);
-	pthread_rwlock_unlock(&rwlock);
-
-	return result;
-}
-
-/*
- * Does the appli of 'name' has the 'idp' defined?
- * Return 1 if answer is yes or 0 for no.
- */
-int oidc_appli_has_idp(const char *name, const char *idp)
-{
-	int result;
-
-	pthread_rwlock_rdlock(&rwlock);
-	result = !!get_appli_idp(name, idp, NULL);
-	pthread_rwlock_unlock(&rwlock);
-
-	return result;
-}
-
-/*
- * Set 'idp' as default for the application of 'name'.
- * Returns 0 on error (appli or idp for appli not existing)
- * or 1 in case of success.
- */
-int oidc_appli_set_default_idp(const char *name, const char *idp)
-{
-	struct json_object *a, *i;
-
-	pthread_rwlock_wrlock(&rwlock);
-	i = get_appli_idp(name, idp, &a);
-	if (i)
-		json_object_object_add(a, string_empty, json_object_new_string(idp));
-	pthread_rwlock_unlock(&rwlock);
-
-	return !!i;
-}
-
-/*
- * Deletes the application of 'name'
- */
-void oidc_appli_delete(const char *name)
-{
-	pthread_rwlock_wrlock(&rwlock);
-	json_object_object_del(applis, name);
-	pthread_rwlock_unlock(&rwlock);
-}
-
-/***************** AUTHORISATION **************************/
-
-/* parameters */
-enum param
-{
-	Param_Access_Token,
-	Param_Acr_Values,
-	Param_Authorization,
-	Param_Client_Id,
-	Param_Client_Secret,
-	Param_Code,
-	Param_Display,
-	Param_Error,
-	Param_Error_Description,
-	Param_Error_Uri,
-	Param_Expires_In,
-	Param_Grant_Type,
-	Param_Id_Token,
-	Param_Id_Token_Hint,
-	Param_Login_Hint,
-	Param_Max_Age,
-	Param_Nonce,
-	Param_Password,
-	Param_Prompt,
-	Param_Redirect_Uri,
-	Param_Refresh_Token,
-	Param_Response_Type,
-	Param_Scope,
-	Param_State,
-	Param_Token_Type,
-	Param_Ui_Locales,
-	Param_Username,
-	PARAM_COUNT
-};
-
-#if PARAM_COUNT > 30
-# error "Too much parameters"
-#endif
-#define PARAM(p)	((uint32_t)((uint32_t)1 << (Param_##p)))
-
-/* args of authorization requests */
-struct args
-{
-	struct json_object *appli;
-	struct json_object *idp;
-	struct json_object *args;
-	struct oidc_grant_cb cb;
-	int locked;
-	int refresh;
-	uint32_t mandatory;
-	uint32_t all;
-	struct json_object *header;
-	struct json_object *query;
-};
-
-/* Release the lock if needed */
-static void args_unlock(struct args *args)
-{
-	if (!args->locked) {
-		pthread_rwlock_unlock(&rwlock);
-		args->locked = 0;
-	}
-}
-
-/* Release the memory needed by args */
-static void args_destroy(struct args *args)
-{
-	json_object_put(args->appli);
-	json_object_put(args->idp);
-	json_object_put(args->header);
-	json_object_put(args->query);
-	free(args);
-}
-
-/* Send the success event with the gained tokens */
-static void args_send_success(struct args *args, struct json_object *result)
-{
-	args_unlock(args);
-	args->cb.success(args->cb.closure, result);
-	args_destroy(args);
-}
-
-/* Sends the error event with the indice to the client of args */
-static void args_send_error(struct args *args, const char *message, const char *indice)
-{
-	args_unlock(args);
-	args->cb.error(args->cb.closure, message, indice);
-	args_destroy(args);
-}
-
-/* Send the error and also return NULL */
-static inline struct args *args_send_error_null(struct args *args, const char *message, const char *indice)
-{
-	args_send_error(args, message, indice);
-	return NULL;
-}
-
-/* creates a struct args from the arguments, returns NULL on error */
-struct args *mkargs(const char *appli, const char *idp, struct json_object *args, const struct oidc_grant_cb *cb)
-{
-	struct args *result;
-	struct json_object *obj;
-
-	/* allocates the args */
-	result = calloc(1, sizeof *result);
-	if (!result) {
-		cb->error(cb->closure, "Out of memory", NULL);
-		return NULL;
-	}
-
-	/* init of the structure */
-	result->cb = *cb;
-	result->args = args;
-	result->header = json_object_new_object();
-	result->query = json_object_new_object();
-
-	/* lock in read */
-	pthread_rwlock_rdlock(&rwlock);
-	result->locked = 1;
-
-	/* check previous allocations */
-	if (!result->query || !result->header) {
-		return args_send_error_null(result, "Out of memory", NULL);
-	}
-
-	/* check whether default idp */
-	if (!idp) {
-		idp = get_default_idp(appli);
-		if (!idp)
-			return args_send_error_null(result, "No default IDP", NULL);
-	}
-
-	/* get the IDP */
-	if (!json_object_object_get_ex(idps, idp, &obj))
-		return args_send_error_null(result, "Unknown IDP", idp);
-	result->idp = json_object_get(obj);
-
-	/* get the appli */
-	obj = get_appli_idp(appli, idp, NULL);
-	if (!obj)
-		return args_send_error_null(result, "Unknown APPLI for IDP", appli);
-	result->appli = json_object_get(obj);
-
-	return result;
-}
-
-/* get a value for a struct args */
-static struct json_object *args_object(struct args *args, const char *name)
-{
-	struct json_object *result;
-
-	if (!json_object_object_get_ex(args->appli, name, &result)
-		&& !json_object_object_get_ex(args->idp, name, &result)
-		&& !json_object_object_get_ex(args->args, name, &result))
-			result = NULL;
-	return result;
-}
-
-/* get a string value for a struct args */
-static const char *args_string(struct args *args, const char *name)
-{
-	struct json_object *object = args_object(args, name);
-	return object ? json_object_get_string(object) : NULL;
-}
-
-/* add a data */
-static int args_add(struct args *args, uint32_t val, const char *name, int query)
-{
-	struct json_object *obj, *dest;
-
-	if (val & args->all) {
-		obj = args_object(args, name);
-		if (obj) {
-			dest = query ? args->query : args->header;
-			json_object_object_add(dest, name, json_object_get(obj));
-		}
-		else if (val & args->mandatory) {
-			args_send_error(args, "Mandatory field missing", name);
-			return 0;
-		}	
-	}
-
-	return 1;
-}
-
-/*
- * Makes the CURL object for the given 'url' for either GET or POST depending
- * on 'post' with the added 'header' fields and the given query parameters.
- * Returns NULL on error.
- * Ex:
- *
- *   curl_json("http://iot.bzh/api", 0, {"X-Index": "no"}, {"fast":true,"item":"2345-hellfest"})
- * 
- * produces the query:
- *
- *   GET /api?fast=true&item=2345-hellfest HTTP/1.1
- *   Host: iot.bzh
- *   X-Index: no
- *
- * while the same but with post not null produces:
- *
- *   POST /api HTTP/1.1
- *   Host: iot.bzh
- *   X-Index: no
- *   Content-Type: application/x-www-form-urlencoded
- *
- *   fast=true&item=2345-hellfest
- *
- */
-static CURL *curl_json(const char *url, int post, struct json_object *header, struct json_object *query)
-{
-	const char **args, *str;
-	struct json_object_iter i;
-	int idx;
-	CURL *result;
-
-	/* create args array */
-	idx = 1 + (json_object_object_length(query) << 1);
-	args = malloc((unsigned)idx * sizeof *args);
-	if (!args)
-		return NULL;
-
-	/* fill the args array */
-	args[--idx] = NULL;
-	json_object_object_foreachC(query, i) {
-		str = json_object_get_string(i.val);
-		args[--idx] = str;
-		args[--idx] = i.key;
-	}
-
-	/* prepare the query */
- 	if (post)
-		result = curl_wrap_prepare_post(url, NULL, args);
-	else
-		result = curl_wrap_prepare_get(url, NULL, args);
-	free(args);
-	if(!result)
-		return NULL;
-
-	/* add headers */
-	if (header) {
-		json_object_object_foreachC(header, i) {
-			str = json_object_get_string(i.val);
-			if (!curl_wrap_add_header_value(result, i.key, str)) {
-				curl_easy_cleanup(result);	
-				return NULL;
-			}
-		}
-	}
-	return result;
-}
-
-/*
- * Extract from the answer of 'curl' whose 'content' has 'size' bytes the
- * embeded JSON object (if any).
- * Returns it or returns NULL if the answer can't be interpreted.
- */
-static struct json_object *decode_perform_result(CURL *curl, const char *content, size_t size)
-{
-	int i;
-	const char **args;
-	struct json_object *result;
-
-	/* is it an url encoded answer? */
-	if (curl_wrap_content_type_is(curl, "application/x-www-form-urlencoded")) {
-		/* yes, unescape as an array of strings */
-		args = unescape_args(content);
-		if (!args)
-			result = NULL;
-		else {
-			/* wrap the key=value pairs in an object  */
-			result = json_object_new_object();
-			if (result) {
-				for (i = 0 ; args[i] ; i += 2)
-					json_object_object_add(result, args[i],
-						json_object_new_string(args[i+1]));
-			}
-			free(args);
-		}
-	} else if (curl_wrap_content_type_is(curl, "application/json")) {
-		/* interpret the json */
-		result = json_tokener_parse (content);
-	} else {
-		/* by default, still try to interpret the answer as if json */
-		result = json_tokener_parse (content);
-	}
-	return result;
-}
-
-/*
- * Treats the result of the query 'curl' of 'content' of 'size' bytes for the 'args'
- */
-static void perform_result(struct args *args, CURL *curl, const char *content, size_t size)
-{
-	struct json_object *obj, *at, *tt;
-	char *txt;
-
-	/* get answer */
-	obj = decode_perform_result(curl, content, size);
-	if (!obj)
-		return args_send_error(args, "unable to extract answer", content);
-
-	/* process the answer */
-	if (json_object_object_get_ex(obj, "access_token", &at) && json_object_object_get_ex(obj, "token_type", &tt)) {
-		if (!strcmp(json_object_get_string(tt), "bearer")) {
-			if (asprintf(&txt, "Bearer %s", json_object_get_string(at)) > 0) {
-				json_object_object_add(obj, "authorization", json_object_new_string(txt));
-				free(txt);
-			}
-		}
-	}
-
-	/* merge the answer to the token args in case of refresh */
-	if (args->refresh)
-		j_merge(args->args, obj);
-
-	/* send the answer */
-	args_send_success(args, obj);
-}
-
-/*
- * Treats the redirect answer of the query 'curl' of 'content' of 'size' bytes for the 'args'
- */
-static void perform_redirect(struct args *args, CURL *curl, const char *content, size_t size)
-{
-	/* TODO: handle redirection for the normal flow */
-	return args_send_error(args, "unhandled redirection", content);
-}
-
-/*
- * Handle the result of the query 'curl' of 'status'. If a data is returned, it is available in
- * 'content' of 'size' bytes.
- * When 'status' is 0, an error occured. Otherwise, 'statu' isn't zero.
- */
-static void perform_callback(void *closure, int status, CURL *curl, const char *content, size_t size)
-{
-	long code;
-	struct args *args = closure;
-
-	/* query error ? */
-	if (!status
-	 || curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code) != CURLE_OK)
-		return args_send_error(args, "query error", NULL); /* TODO: IMPROVE? */
-
-	/* get the returned code */
-	switch (code) {
-	case 200:
-		return perform_result(args, curl, content, size);
-	case 302:
-		return perform_redirect(args, curl, content, size);
-	case 400:
-	case 401:
-		return args_send_error(args, content ? : "returned code error", content ? "returned code error" : content);
-	default:
-		return args_send_error(args, content ? : "unexpected code error", content ? "unexpected code error" : content);
-	}
-}
-
-/*
- * Main function for performing OAuth2/OpenId Connect transactions.
- * The structure 'args' is filled with the needed values:
- *   Application data as json object, IDP data as json object
- *   Contextual arguments for the transaction.
- * 'endpoint' must be the name of an endpoint in the context of 'args'.
- * 'operation' is the value that will get either response_type or grant_type,
- * depending on the nature of the required parameters 'mandatory'.
- * 'mandatory' designates the mandatory parameters.
- * 'optional' designate the optional parameters.
- */
-static void perform(struct args *args, const char *endpoint, const char *operation, uint32_t mandatory, uint32_t optional)
-{
-	int post;
-	const char *url, *type;
-	CURL *curl;
-
-	/* set the flags */
-	args->mandatory = mandatory;
-	args->all = mandatory | optional;
-
-	/* get the endpoint */
-	url = args_string(args, endpoint);
-	if (!url)
-		return args_send_error(args, "No endpoint", endpoint);
-
-	/* get the operation type */
-	if ((mandatory & PARAM(Response_Type)) == PARAM(Response_Type)) {
-		type = "response_type";
-		post = 0; /* can be 1 sometimes so not risk here */
-	} else if ((mandatory & PARAM(Grant_Type)) == PARAM(Grant_Type)) {
-		type = "grant_type";
-		post = 1; /* must be 1 */
-	} else
-		return args_send_error(args, "Unexpected operation Type", NULL);
-		
-	json_object_object_add(args->query, type, json_object_new_string(operation));
-
-	/* get the arguments */
-	if (1
-	 && args_add(args, PARAM(Access_Token), "access_token", 1)
-	 && args_add(args, PARAM(Acr_Values), "acr_values", 1)
-	 && args_add(args, PARAM(Authorization), "authorization", 0)
-	 && args_add(args, PARAM(Client_Id), "client_id", 1)
-	 && args_add(args, PARAM(Client_Secret), "client_secret", 1)
-	 && args_add(args, PARAM(Code), "code", 1)
-	 && args_add(args, PARAM(Display), "display", 1)
-	 && args_add(args, PARAM(Expires_In), "expires_in", 1)
-	 && args_add(args, PARAM(Id_Token_Hint), "id_token_hint", 1)
-	 && args_add(args, PARAM(Login_Hint), "login_hint", 1)
-	 && args_add(args, PARAM(Max_Age), "max_age", 1)
-	 && args_add(args, PARAM(Nonce), "nonce", 1)
-	 && args_add(args, PARAM(Password), "password", 1)
-	 && args_add(args, PARAM(Prompt), "prompt", 1)
-	 && args_add(args, PARAM(Redirect_Uri), "redirect_uri", 1)
-	 && args_add(args, PARAM(Refresh_Token), "refresh_token", 1)
-	 && args_add(args, PARAM(Scope), "scope", 1)
-	 && args_add(args, PARAM(State), "state", 1)
-	 && args_add(args, PARAM(Token_Type), "token_type", 1)
-	 && args_add(args, PARAM(Ui_Locales), "ui_locales", 1)
-	 && args_add(args, PARAM(Username), "username", 1)
-	) {
-		/* creates the curl query */
-		curl = curl_json(url, post, args->header, args->query);
-		if (!curl)
-			return args_send_error(args, "out of memory", NULL);
-
-		/* release data */
-		args_unlock(args);
-
-		/* perform the request to the server */
-		curl_wrap_do(curl, perform_callback, args);
-	}
-}
-
-/* perform a grant of flow Flow_Resource_Owner_Password_Credentials_Grant */
-static void grant_owner_password(struct args *args)
-{
-	perform(args, string_token_endpoint, "password",
-			PARAM(Grant_Type) | PARAM(Username) | PARAM(Password),
-			PARAM(Scope) | PARAM(Authorization)
-		);
-}
-
-/* perform a grant of flow Flow_Client_Credentials_Grant */
-static void grant_client_credentials(struct args *args)
-{
-	perform(args, string_token_endpoint, "client_credentials",
-			PARAM(Grant_Type),
-			PARAM(Scope) | PARAM(Authorization)
-		);
-}
-
-/* switches the requests depending on 'flow' */
-static void grant(struct args *args, enum oidc_grant_flow flow)
-{
-	/* ensure args is valid */
-	if (!args)
-		return;
-
-	/* process for flow */
-	switch(flow) {
-
-	case Flow_Resource_Owner_Password_Credentials_Grant:
-		grant_owner_password(args);
-		break;
-
-	case Flow_Client_Credentials_Grant:
-		grant_client_credentials(args);
-		break;
-
-	case Flow_Authorization_Code_Grant:
-	case Flow_Implicit_Grant:
-	case Flow_Extension_Grant:
-		args_send_error(args, "Unsupported flow", NULL);
-		break;
-		
-	case Flow_Invalid:
-	default:
-		args_send_error(args, "Invalid flow", NULL);
-		break;
-	}
-}
-
-/*
- * Initiates a grant with the given 'flow'.
- * 'appli' and 'idp' designates the appli and the idp that have been recorded.
- * when idp == NULL or idp == "", the default idp of 'appli' is used.
- * 'args' contains parameters expected in plus for the grant transaction.
- * 'cb' describes the callback actions that are called before
- * the function returns.
- */
-void oidc_grant(const char *appli, const char *idp, struct json_object *args, const struct oidc_grant_cb *cb, enum oidc_grant_flow flow)
-{
-	grant(mkargs(appli, idp, args, cb), flow);
-}
-
-/*
- * Like oidc_grant for flow Flow_Resource_Owner_Password_Credentials_Grant
- */
-void oidc_grant_owner_password(const char *appli, const char *idp, struct json_object *args, const struct oidc_grant_cb *cb)
-{
-	grant(mkargs(appli, idp, args, cb), Flow_Resource_Owner_Password_Credentials_Grant);
-}
-
-/*
- * Like oidc_grant for flow Flow_Client_Credentials_Grant
- */
-void oidc_grant_client_credentials(const char *appli, const char *idp, struct json_object *args, const struct oidc_grant_cb *cb)
-{
-	grant(mkargs(appli, idp, args, cb), Flow_Client_Credentials_Grant);
-}
-
-/*
- * Refreshes the 'token' for the 'appli' and the  'idp'.
- * 'cb' describes the callback actions that are called before
- * the function returns.
- */
-void oidc_token_refresh(const char *appli, const char *idp, struct json_object *token, const struct oidc_grant_cb *cb)
-{
-	struct args *args;
-
-	args = mkargs(appli, idp, token, cb);
-	if (!args)
-		return;
-	args->refresh = 1;
-	perform(args, string_token_endpoint, "refresh_token",
-			PARAM(Grant_Type) | PARAM(Refresh_Token),
-			PARAM(Scope) | PARAM(Authorization)
-		);
-}
-
-/*
- * Adds the header "authorisation" with the bearer access_token of 'token'.
- * Return 1 on case of success or 0 otherwise.
- */
-int oidc_add_bearer(CURL *curl, struct json_object *token)
-{
-	struct json_object *bearer;
-
-	return json_object_object_get_ex(token, "authorization", &bearer)
-		&& curl_wrap_add_header_value(curl, "authorization", json_object_get_string(bearer));
-}
-
-