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<?xml version="1.0" encoding="UTF-8"?>
<manifest>
  <remote fetch="https://github.com/01org/" name="01org"/>
  <remote fetch="https://gerrit.automotivelinux.org/gerrit/" name="agl" pushurl="ssh://gerrit.automotivelinux.org:29418" review="https://gerrit.automotivelinux.org/gerrit/"/>
  <remote fetch="git://git.freescale.com/imx" name="fsl-release"/>
  <remote fetch="https://github.com/" name="github"/>
  <remote fetch="git://git.openembedded.org/" name="openembedded"/>
  <remote fetch="git://git.yoctoproject.org/" name="yocto"/>
  
  <default remote="agl" revision="master" sync-j="4"/>
  
  <project name="AGL/meta-agl" path="meta-agl" revision="b1644978348b1ab9cd5a3914bc5e5df8b1fedb73" upstream="master"/>
  <project name="AGL/meta-agl-demo" path="meta-agl-demo" revision="32b8cd3398e2f8bdbe02b16b5c24a6ab21c474b0" upstream="master"/>
  <project name="AGL/meta-agl-devel" path="meta-agl-devel" revision="092ccd7f65025efc1da47ff25746be014c723556" upstream="master"/>
  <project name="AGL/meta-agl-extra" path="meta-agl-extra" revision="5999238130b1c50031307b0f4b00bf7f2a035d41" upstream="master"/>
  <project name="AGL/meta-renesas" path="meta-renesas" revision="bfdf1a0cfd9c8afbdf472345269037fb75f5c432" upstream="master"/>
  <project name="CogentEmbedded/meta-rcar" path="meta-rcar" remote="github" revision="2b0598e0a252a8cf1dc4edacf4ef3a7071dbfd87" upstream="v2.12.0"/>
  <project name="Freescale/meta-fsl-arm-extra" path="meta-fsl-arm-extra" remote="github" revision="e95f4ae61fdaf6452d6dfa9cb59dbdf9cdf73c99" upstream="krogoth"/>
  <project name="meta-fsl-arm" remote="yocto" revision="e2254e7b2ded0c2b66b1226f879b3a6d52037b2d" upstream="krogoth"/>
  <project name="meta-intel" remote="yocto" revision="10feb903cfd69e6699f81a668b7128120e396dbf" upstream="krogoth"/>
  <project name="meta-intel-iot-security" remote="01org" revision="20bbb97f6d5400b126ae96ef446c3e60c7e16285"/>
  <project name="meta-oic" remote="yocto" revision="0bdd959e0dee4f63098702c302d1d214ac3d808a" upstream="1.2.0"/>
  <project name="meta-openembedded" remote="openembedded" revision="55c8a76da5dc099a7bc3838495c672140cedb78e" upstream="krogoth"/>
  <project name="meta-qcom" remote="yocto" revision="3bfe83535358289aa7f7342ed0977c076e7550c8" upstream="krogoth"/>
  <project name="meta-qt5/meta-qt5" path="meta-qt5" remote="github" revision="9aa870eecf6dc7a87678393bd55b97e21033ab48" upstream="morty"/>
  <project name="meta-raspberrypi" remote="yocto" revision="a5f9b07a820d50ae5fb62e07306cd4e72d8638a9" upstream="krogoth"/>
  <project name="meta-rust/meta-rust" path="meta-rust" remote="github" revision="d0663639a08ed60bb83fd6eb99e3e2045b21b53c"/>
  <project name="meta-security-isafw" remote="01org" revision="f44f15bb54057dd60399bb5dc7e0ecc7822168a2" upstream="master"/>
  <project name="meta-ti" remote="yocto" revision="d2459418202ef2efb3dc5f9f5e09225d708f4ab8" upstream="krogoth"/>
  <project name="poky" remote="yocto" revision="ae9b341ecfcc60e970f29cfe04306411ad26c0cf" upstream="krogoth"/>
  <project name="tripzero/meta-amb" path="meta-amb" remote="github" revision="ef3495bb8d6543709f6d1f7b657cb894d32c1757" upstream="master"/>
</manifest>
-weight: bold } /* Generic.Strong */ .highlight .gu { color: #666666 } /* Generic.Subheading */ .highlight .gt { color: #aa0000 } /* Generic.Traceback */ .highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ } 
/*
 * Copyright (C) 2016 "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 <stdint.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <poll.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/stat.h>

#include <microhttpd.h>
#include <systemd/sd-event.h>

#include "afb-method.h"
#include "afb-context.h"
#include "afb-hreq.h"
#include "afb-hsrv.h"
#include <afb/afb-req-itf.h>
#include "verbose.h"
#include "locale-root.h"

#include "afb-common.h"



#define JSON_CONTENT  "application/json"
#define FORM_CONTENT  MHD_HTTP_POST_ENCODING_MULTIPART_FORMDATA


struct hsrv_handler {
	struct hsrv_handler *next;
	const char *prefix;
	size_t length;
	int (*handler) (struct afb_hreq *, void *);
	void *data;
	int priority;
};

struct hsrv_alias {
	struct locale_root *root;
	int relax;
};

struct afb_hsrv {
	unsigned refcount;
	struct hsrv_handler *handlers;
	struct MHD_Daemon *httpd;
	sd_event_source *evsrc;
	int in_run;
	char *cache_to;
};

static int global_reqids = 0;

static void reply_error(struct MHD_Connection *connection, unsigned int status)
{
	struct MHD_Response *response = MHD_create_response_from_buffer(0, NULL, MHD_RESPMEM_PERSISTENT);
	MHD_queue_response(connection, status, response);
	MHD_destroy_response(response);
}

static int postproc(void *cls,
                    enum MHD_ValueKind kind,
                    const char *key,
                    const char *filename,
                    const char *content_type,
                    const char *transfer_encoding,
                    const char *data,
		    uint64_t off,
		    size_t size)
{
	struct afb_hreq *hreq = cls;
	if (filename != NULL)
		return afb_hreq_post_add_file(hreq, key, filename, data, size);
	else
		return afb_hreq_post_add(hreq, key, data, size);
}

static int access_handler(
		void *cls,
		struct MHD_Connection *connection,
		const char *url,
		const char *methodstr,
		const char *version,
		const char *upload_data,
		size_t *upload_data_size,
		void **recordreq)
{
	int rc;
	struct afb_hreq *hreq;
	enum afb_method method;
	struct afb_hsrv *hsrv;
	struct hsrv_handler *iter;
	const char *type;

	hsrv = cls;
	hreq = *recordreq;
	if (hreq == NULL) {
		/* get the method */
		method = get_method(methodstr);
		method &= afb_method_get | afb_method_post;
		if (method == afb_method_none) {
			reply_error(connection, MHD_HTTP_BAD_REQUEST);
			return MHD_YES;
		}

		/* create the request */
		hreq = calloc(1, sizeof *hreq);
		if (hreq == NULL) {
			reply_error(connection, MHD_HTTP_INTERNAL_SERVER_ERROR);
			return MHD_YES;
		}

		/* init the request */
		hreq->refcount = 1;
		hreq->hsrv = hsrv;
		hreq->cacheTimeout = hsrv->cache_to;
		hreq->reqid = ++global_reqids;
		hreq->scanned = 0;
		hreq->suspended = 0;
		hreq->replied = 0;
		hreq->connection = connection;
		hreq->method = method;
		hreq->version = version;
		hreq->lang = MHD_lookup_connection_value(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_ACCEPT_LANGUAGE);
		hreq->tail = hreq->url = url;
		hreq->lentail = hreq->lenurl = strlen(url);
		*recordreq = hreq;

		/* init the post processing */
		if (method == afb_method_post) {
			type = afb_hreq_get_header(hreq, MHD_HTTP_HEADER_CONTENT_TYPE);
			if (type == NULL) {
				/* an empty post, let's process it as a get */
				hreq->method = afb_method_get;
			} else if (strcasestr(type, FORM_CONTENT) != NULL) {
				hreq->postform = MHD_create_post_processor (connection, 65500, postproc, hreq);
				if (hreq->postform == NULL)
					afb_hreq_reply_error(hreq, MHD_HTTP_INTERNAL_SERVER_ERROR);
				return MHD_YES;
			} else if (strcasestr(type, JSON_CONTENT) != NULL) {
				return MHD_YES;
                        } else {
				afb_hreq_reply_error(hreq, MHD_HTTP_UNSUPPORTED_MEDIA_TYPE);
				return MHD_YES;
			}
		}
	}

	/* process further data */
	if (*upload_data_size) {
		if (hreq->postform != NULL) {
			if (!MHD_post_process (hreq->postform, upload_data, *upload_data_size)) {
				afb_hreq_reply_error(hreq, MHD_HTTP_INTERNAL_SERVER_ERROR);
				return MHD_YES;
			}
		} else {
			if (!afb_hreq_post_add(hreq, "", upload_data, *upload_data_size)) {
				afb_hreq_reply_error(hreq, MHD_HTTP_INTERNAL_SERVER_ERROR);
				return MHD_YES;
			}
		}
		*upload_data_size = 0;
		return MHD_YES;
	}

	/* flush the data */
	if (hreq->postform != NULL) {
		rc = MHD_destroy_post_processor(hreq->postform);
		hreq->postform = NULL;
		if (rc == MHD_NO) {
			afb_hreq_reply_error(hreq, MHD_HTTP_BAD_REQUEST);
			return MHD_YES;
		}
	}

	if (hreq->scanned != 0) {
		if (hreq->replied == 0 && hreq->suspended == 0) {
			MHD_suspend_connection (connection);
			hreq->suspended = 1;
		}
		return MHD_YES;
	}

	/* search an handler for the request */
	hreq->scanned = 1;
	iter = hsrv->handlers;
	while (iter) {
		if (afb_hreq_unprefix(hreq, iter->prefix, iter->length)) {
			if (iter->handler(hreq, iter->data)) {
				if (hreq->replied == 0 && hreq->suspended == 0) {
					MHD_suspend_connection (connection);
					hreq->suspended = 1;
				}
				return MHD_YES;
			}
			hreq->tail = hreq->url;
			hreq->lentail = hreq->lenurl;
		}
		iter = iter->next;
	}

	/* no handler */
	afb_hreq_reply_error(hreq, MHD_HTTP_NOT_FOUND);
	return MHD_YES;
}

/* Because of POST call multiple time requestApi we need to free POST handle here */
static void end_handler(void *cls, struct MHD_Connection *connection, void **recordreq,
			enum MHD_RequestTerminationCode toe)
{
	struct afb_hreq *hreq;

	hreq = *recordreq;
	if (hreq->upgrade)
		MHD_suspend_connection (connection);
	afb_hreq_unref(hreq);
}

void run_micro_httpd(struct afb_hsrv *hsrv)
{
	if (hsrv->in_run != 0)
		hsrv->in_run = 2;
	else {
		sd_event_source_set_io_events(hsrv->evsrc, 0);
		do {
			hsrv->in_run = 1;
			MHD_run(hsrv->httpd);
		} while(hsrv->in_run == 2);
		hsrv->in_run = 0;
		sd_event_source_set_io_events(hsrv->evsrc, EPOLLIN);
	}
}

static int io_event_callback(sd_event_source *src, int fd, uint32_t revents, void *hsrv)
{
	run_micro_httpd(hsrv);
	return 0;
}

static int new_client_handler(void *cls, const struct sockaddr *addr, socklen_t addrlen)
{
	return MHD_YES;
}

static struct hsrv_handler *new_handler(
		struct hsrv_handler *head,
		const char *prefix,
		int (*handler) (struct afb_hreq *, void *),
		void *data,
		int priority)
{
	struct hsrv_handler *link, *iter, *previous;
	size_t length;

	/* get the length of the prefix without its leading / */
	length = strlen(prefix);
	while (length && prefix[length - 1] == '/')
		length--;

	/* allocates the new link */
	link = malloc(sizeof *link);
	if (link == NULL)
		return NULL;

	/* initialize it */
	link->prefix = prefix;
	link->length = length;
	link->handler = handler;
	link->data = data;
	link->priority = priority;

	/* adds it */
	previous = NULL;
	iter = head;
	while (iter && (priority < iter->priority || (priority == iter->priority && length <= iter->length))) {
		previous = iter;
		iter = iter->next;
	}
	link->next = iter;
	if (previous == NULL)
		return link;
	previous->next = link;
	return head;
}

static int handle_alias(struct afb_hreq *hreq, void *data)
{
	int rc;
	struct hsrv_alias *da = data;
	struct locale_search *search;

	if (hreq->method != afb_method_get) {
		if (da->relax)
			return 0;
		afb_hreq_reply_error(hreq, MHD_HTTP_METHOD_NOT_ALLOWED);
		return 1;
	}

	search = locale_root_search(da->root, hreq->lang, 0);
	rc = afb_hreq_reply_locale_file_if_exist(hreq, search, &hreq->tail[1]);
	locale_search_unref(search);
	if (rc == 0) {
		if (da->relax)
			return 0;
		afb_hreq_reply_error(hreq, MHD_HTTP_NOT_FOUND);
	}
	return 1;
}

int afb_hsrv_add_handler(
		struct afb_hsrv *hsrv,
		const char *prefix,
		int (*handler) (struct afb_hreq *, void *),
		void *data,
		int priority)
{
	struct hsrv_handler *head;

	head = new_handler(hsrv->handlers, prefix, handler, data, priority);
	if (head == NULL)
		return 0;
	hsrv->handlers = head;
	return 1;
}

int afb_hsrv_add_alias_root(struct afb_hsrv *hsrv, const char *prefix, struct locale_root *root, int priority, int relax)
{
	struct hsrv_alias *da;

	da = malloc(sizeof *da);
	if (da != NULL) {
		da->root = root;
		da->relax = relax;
		if (afb_hsrv_add_handler(hsrv, prefix, handle_alias, da, priority)) {
			locale_root_addref(root);
			return 1;
		}
		free(da);
	}
	return 0;
}

int afb_hsrv_add_alias(struct afb_hsrv *hsrv, const char *prefix, int dirfd, const char *alias, int priority, int relax)
{
	struct locale_root *root;
	int rc;

	root = locale_root_create_at(dirfd, alias);
	if (root == NULL) {
		ERROR("can't connect to directory %s: %m", alias);
		rc = 0;
	} else {
		rc = afb_hsrv_add_alias_root(hsrv, prefix, root, priority, relax);
		locale_root_unref(root);
	}
	return rc;
}

int afb_hsrv_set_cache_timeout(struct afb_hsrv *hsrv, int duration)
{
	int rc;
	char *dur;

	rc = asprintf(&dur, "%d", duration);
	if (rc < 0)
		return 0;

	free(hsrv->cache_to);
	hsrv->cache_to = dur;
	return 1;
}

int afb_hsrv_start(struct afb_hsrv *hsrv, uint16_t port, unsigned int connection_timeout)
{
	sd_event_source *evsrc;
	int rc;
	struct MHD_Daemon *httpd;
	const union MHD_DaemonInfo *info;

	httpd = MHD_start_daemon(
		MHD_USE_EPOLL_LINUX_ONLY | MHD_USE_TCP_FASTOPEN | MHD_USE_DEBUG | MHD_USE_SUSPEND_RESUME,
		port,				/* port */
		new_client_handler, NULL,	/* Tcp Accept call back + extra attribute */
		access_handler, hsrv,	/* Http Request Call back + extra attribute */
		MHD_OPTION_NOTIFY_COMPLETED, end_handler, hsrv,
		MHD_OPTION_CONNECTION_TIMEOUT, connection_timeout,
		MHD_OPTION_END);	/* options-end */

	if (httpd == NULL) {
		ERROR("httpStart invalid httpd port: %d", (int)port);
		return 0;
	}

	info = MHD_get_daemon_info(httpd, MHD_DAEMON_INFO_EPOLL_FD_LINUX_ONLY);
	if (info == NULL) {
		MHD_stop_daemon(httpd);
		ERROR("httpStart no pollfd");
		return 0;
	}

	rc = sd_event_add_io(afb_common_get_event_loop(), &evsrc, info->listen_fd, EPOLLIN, io_event_callback, hsrv);
	if (rc < 0) {
		MHD_stop_daemon(httpd);
		errno = -rc;
		ERROR("connection to events for httpd failed");
		return 0;
	}

	hsrv->httpd = httpd;
	hsrv->evsrc = evsrc;
	return 1;
}

void afb_hsrv_stop(struct afb_hsrv *hsrv)
{
	if (hsrv->evsrc != NULL) {
		sd_event_source_unref(hsrv->evsrc);
		hsrv->evsrc = NULL;
	}
	if (hsrv->httpd != NULL)
		MHD_stop_daemon(hsrv->httpd);
	hsrv->httpd = NULL;
}

struct afb_hsrv *afb_hsrv_create()
{
	struct afb_hsrv *result = calloc(1, sizeof(struct afb_hsrv));
	if (result != NULL)
		result->refcount = 1;
	return result;
}

void afb_hsrv_put(struct afb_hsrv *hsrv)
{
	assert(hsrv->refcount != 0);
	if (!--hsrv->refcount) {
		afb_hsrv_stop(hsrv);
		free(hsrv);
	}
}