/*
- * Copyright 2016 IoT.bzh
+ * Copyright (C) 2016, 2017 "IoT.bzh"
* Author: José Bollo <jose.bollo@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
#define _GNU_SOURCE
+#include <stdint.h>
+#include <stdlib.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-xreq.h"
#include "afb-hreq.h"
#include "afb-hsrv.h"
-#include "afb-req-itf.h"
#include "verbose.h"
-#include "utils-upoll.h"
+#include "locale-root.h"
+#include "afb-common.h"
+#include "jobs.h"
#define JSON_CONTENT "application/json"
#define FORM_CONTENT MHD_HTTP_POST_ENCODING_MULTIPART_FORMDATA
};
struct hsrv_alias {
- const char *alias;
- const char *directory;
- size_t lendir;
- int dirfd;
-};
-
-enum afb_hsrv_state {
- hsrv_idle = 0,
- hsrv_run,
- hsrv_rerun
+ struct locale_root *root;
+ int relax;
};
struct afb_hsrv {
unsigned refcount;
- enum afb_hsrv_state state;
struct hsrv_handler *handlers;
struct MHD_Daemon *httpd;
- struct upoll *upoll;
+ sd_event_source *evsrc;
char *cache_to;
};
-
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);
hsrv = cls;
hreq = *recordreq;
if (hreq == NULL) {
- /* create the request */
- hreq = calloc(1, sizeof *hreq);
- if (hreq == NULL)
- goto internal_error;
- *recordreq = hreq;
-
/* get the method */
method = get_method(methodstr);
method &= afb_method_get | afb_method_post;
- if (method == afb_method_none)
- goto bad_request;
+ if (method == afb_method_none) {
+ WARNING("Unsupported HTTP operation %s", methodstr);
+ reply_error(connection, MHD_HTTP_BAD_REQUEST);
+ return MHD_YES;
+ }
+
+ /* create the request */
+ hreq = afb_hreq_create();
+ if (hreq == NULL) {
+ ERROR("Can't allocate 'hreq'");
+ reply_error(connection, MHD_HTTP_INTERNAL_SERVER_ERROR);
+ return MHD_YES;
+ }
/* init the request */
+ hreq->hsrv = hsrv;
hreq->cacheTimeout = hsrv->cache_to;
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) {
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)
- goto internal_error;
+ if (hreq->postform == NULL) {
+ ERROR("Can't create POST processor");
+ afb_hreq_reply_error(hreq, MHD_HTTP_INTERNAL_SERVER_ERROR);
+ }
+ return MHD_YES;
+ } else if (strcasestr(type, JSON_CONTENT) != NULL) {
return MHD_YES;
- } else if (strcasestr(type, JSON_CONTENT) == NULL) {
- reply_error(connection, MHD_HTTP_UNSUPPORTED_MEDIA_TYPE);
+ } else {
+ WARNING("Unsupported media type %s", type);
+ 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))
- goto internal_error;
+ if (!MHD_post_process (hreq->postform, upload_data, *upload_data_size)) {
+ ERROR("error in POST processor");
+ 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))
- goto internal_error;
+ 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;
+ return MHD_YES;
}
/* flush the data */
if (hreq->postform != NULL) {
rc = MHD_destroy_post_processor(hreq->postform);
hreq->postform = NULL;
- if (rc == MHD_NO)
- goto bad_request;
+ if (rc == MHD_NO) {
+ ERROR("error detected in POST processing");
+ 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 (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;
}
}
/* no handler */
+ WARNING("Unhandled request to %s", hreq->url);
afb_hreq_reply_error(hreq, MHD_HTTP_NOT_FOUND);
return MHD_YES;
-
-bad_request:
- reply_error(connection, MHD_HTTP_BAD_REQUEST);
- return MHD_YES;
-
-internal_error:
- reply_error(connection, MHD_HTTP_INTERNAL_SERVER_ERROR);
- return MHD_YES;
}
/* Because of POST call multiple time requestApi we need to free POST handle here */
struct afb_hreq *hreq;
hreq = *recordreq;
- if (hreq->upgrade)
- MHD_suspend_connection (connection);
- afb_hreq_free(hreq);
+ if (hreq) {
+ afb_hreq_unref(hreq);
+ }
}
-static void handle_epoll_readable(struct afb_hsrv *hsrv)
+static void do_run(int signum, void *arg)
{
- if (hsrv->state != hsrv_idle)
- hsrv->state = hsrv_rerun;
- else {
- do {
- hsrv->state = hsrv_run;
- MHD_run(hsrv->httpd);
- } while (hsrv->state == hsrv_rerun);
- hsrv->state = hsrv_idle;
+ MHD_UNSIGNED_LONG_LONG to;
+ struct afb_hsrv *hsrv = arg;
+
+ if (!signum) {
+ do { MHD_run(hsrv->httpd); } while(MHD_get_timeout(hsrv->httpd, &to) == MHD_YES && !to);
}
-};
+ sd_event_source_set_io_events(hsrv->evsrc, EPOLLIN);
+}
+
+void run_micro_httpd(struct afb_hsrv *hsrv)
+{
+ sd_event_source_set_io_events(hsrv->evsrc, 0);
+ if (jobs_queue(hsrv, 0, do_run, hsrv) < 0)
+ do_run(0, hsrv);
+}
+
+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)
{
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;
}
- if (!afb_hreq_valid_tail(hreq)) {
- afb_hreq_reply_error(hreq, MHD_HTTP_FORBIDDEN);
- 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 afb_hreq_reply_file(hreq, da->dirfd, &hreq->tail[1]);
+ return 1;
}
int afb_hsrv_add_handler(
return 1;
}
-int afb_hsrv_add_alias(struct afb_hsrv *hsrv, const char *prefix, const char *alias, int priority)
+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;
- int dirfd;
- dirfd = open(alias, O_PATH|O_DIRECTORY);
- if (dirfd < 0) {
- /* TODO message */
- return 0;
- }
da = malloc(sizeof *da);
if (da != NULL) {
- da->alias = prefix;
- da->directory = alias;
- da->lendir = strlen(da->directory);
- da->dirfd = dirfd;
- if (afb_hsrv_add_handler(hsrv, prefix, handle_alias, da, priority))
+ 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);
}
- close(dirfd);
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;
int afb_hsrv_start(struct afb_hsrv *hsrv, uint16_t port, unsigned int connection_timeout)
{
- struct upoll *upoll;
+ 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,
+ MHD_USE_EPOLL | MHD_ALLOW_UPGRADE | 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_END); /* options-end */
if (httpd == NULL) {
- fprintf(stderr, "Error: httpStart invalid httpd port: %d", (int)port);
+ 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);
- fprintf(stderr, "Error: httpStart no pollfd");
+ ERROR("httpStart no pollfd");
return 0;
}
- upoll = upoll_open(info->listen_fd, hsrv);
- if (upoll == NULL) {
+ 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);
- fprintf(stderr, "Error: connection to upoll of httpd failed");
+ errno = -rc;
+ ERROR("connection to events for httpd failed");
return 0;
}
- upoll_on_readable(upoll, (void*)handle_epoll_readable);
hsrv->httpd = httpd;
- hsrv->upoll = upoll;
+ hsrv->evsrc = evsrc;
return 1;
}
void afb_hsrv_stop(struct afb_hsrv *hsrv)
{
- if (hsrv->upoll)
- upoll_close(hsrv->upoll);
- hsrv->upoll = NULL;
+ 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;