/*
- * uhttpd - Tiny single-threaded httpd - Main header
+ * uhttpd - Tiny single-threaded httpd
*
- * Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
- * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2010-2013 Jo-Philipp Wich <xm@subsignal.org>
+ * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
*
- * 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
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
*
- * 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.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef __UHTTPD_H
#include <libubox/uloop.h>
#include <libubox/ustream.h>
#include <libubox/blob.h>
+#include <libubox/utils.h>
+#ifdef HAVE_UBUS
+#include <libubus.h>
+#include <json-c/json.h>
+#endif
+#ifdef HAVE_TLS
+#include <libubox/ustream-ssl.h>
+#endif
#include "utils.h"
#define UH_LIMIT_CLIENTS 64
-#define UH_LIMIT_HEADERS 64
-#define UH_LIMIT_MSGHEAD 4096
+
+#define __enum_header(_name, _val) HDR_##_name,
+#define __blobmsg_header(_name, _val) [HDR_##_name] = { .name = #_val, .type = BLOBMSG_TYPE_STRING },
+
+struct client;
+
+struct alias {
+ struct list_head list;
+ char *alias;
+ char *path;
+};
struct config {
- char docroot[PATH_MAX];
- char *realm;
- char *file;
- char *error_handler;
+ const char *docroot;
+ const char *realm;
+ const char *file;
+ const char *error_handler;
+ const char *cgi_prefix;
+ const char *cgi_docroot_path;
+ const char *cgi_path;
+ const char *lua_handler;
+ const char *lua_prefix;
+ const char *ubus_prefix;
+ const char *ubus_socket;
int no_symlinks;
int no_dirlists;
int network_timeout;
int rfc1918_filter;
+ int tls_redirect;
int tcp_keepalive;
- int max_requests;
+ int max_script_requests;
+ int max_connections;
int http_keepalive;
int script_timeout;
+ int ubus_noauth;
+ int ubus_cors;
+ int cgi_prefix_len;
+ struct list_head cgi_alias;
};
struct auth_realm {
struct list_head list;
- char path[PATH_MAX];
- char user[32];
- char pass[128];
+ const char *path;
+ const char *user;
+ const char *pass;
};
enum http_method {
UH_HTTP_MSG_GET,
UH_HTTP_MSG_POST,
UH_HTTP_MSG_HEAD,
+ UH_HTTP_MSG_OPTIONS,
};
enum http_version {
UH_HTTP_VER_1_1,
};
+enum http_user_agent {
+ UH_UA_UNKNOWN,
+ UH_UA_GECKO,
+ UH_UA_CHROME,
+ UH_UA_SAFARI,
+ UH_UA_MSIE,
+ UH_UA_KONQUEROR,
+ UH_UA_OPERA,
+ UH_UA_MSIE_OLD,
+ UH_UA_MSIE_NEW,
+};
+
struct http_request {
enum http_method method;
enum http_version version;
+ enum http_user_agent ua;
int redirect_status;
- char *url;
- struct auth_realm *realm;
-};
-
-struct http_response {
- int statuscode;
- char *statusmsg;
- char *headers[UH_LIMIT_HEADERS];
+ int content_length;
+ bool expect_cont;
+ bool connection_close;
+ bool disable_chunked;
+ uint8_t transfer_chunked;
+ const struct auth_realm *realm;
};
enum client_state {
CLIENT_STATE_DATA,
CLIENT_STATE_DONE,
CLIENT_STATE_CLOSE,
+ CLIENT_STATE_CLEANUP,
};
-struct client {
+struct interpreter {
struct list_head list;
- int id;
+ const char *path;
+ const char *ext;
+};
- struct ustream *us;
+struct path_info {
+ const char *root;
+ const char *phys;
+ const char *name;
+ const char *info;
+ const char *query;
+ const char *auth;
+ bool redirected;
+ struct stat stat;
+ const struct interpreter *ip;
+};
+
+struct env_var {
+ const char *name;
+ const char *value;
+};
+
+struct relay {
struct ustream_fd sfd;
-#ifdef HAVE_TLS
- struct ustream_ssl stream_ssl;
-#endif
- struct uloop_fd rpipe;
- struct uloop_fd wpipe;
struct uloop_process proc;
struct uloop_timeout timeout;
- bool (*cb)(struct client *);
- void *priv;
+ struct client *cl;
- enum client_state state;
+ bool process_done;
+ bool error;
+ bool skip_data;
- struct http_request request;
- struct http_response response;
- struct sockaddr_in6 servaddr;
- struct sockaddr_in6 peeraddr;
+ int ret;
+ int header_ofs;
+
+ void (*header_cb)(struct relay *r, const char *name, const char *value);
+ void (*header_end)(struct relay *r);
+ void (*close)(struct relay *r, int ret);
+};
+struct dispatch_proc {
+ struct uloop_timeout timeout;
struct blob_buf hdr;
+ struct uloop_fd wrfd;
+ struct relay r;
+ int status_code;
+ char *status_msg;
+};
+
+struct dispatch_handler {
+ struct list_head list;
+ bool script;
+
+ bool (*check_url)(const char *url);
+ bool (*check_path)(struct path_info *pi, const char *url);
+ void (*handle_request)(struct client *cl, char *url, struct path_info *pi);
+};
+
+#ifdef HAVE_UBUS
+struct dispatch_ubus {
+ struct ubus_request req;
+
+ struct uloop_timeout timeout;
+ struct json_tokener *jstok;
+ struct json_object *jsobj;
+ struct json_object *jsobj_cur;
+ int post_len;
- void (*dispatch_write_cb)(struct client *cl);
- void (*dispatch_free)(struct client *cl);
+ uint32_t obj;
+ const char *func;
+
+ struct blob_buf buf;
+ bool req_pending;
+ bool array;
+ int array_idx;
+};
+#endif
+
+struct dispatch {
+ int (*data_send)(struct client *cl, const char *data, int len);
+ void (*data_done)(struct client *cl);
+ void (*write_cb)(struct client *cl);
+ void (*close_fds)(struct client *cl);
+ void (*free)(struct client *cl);
+
+ void *req_data;
+ void (*req_free)(struct client *cl);
+
+ bool data_blocked;
+ bool no_cache;
union {
struct {
struct blob_attr **hdr;
int fd;
} file;
- } data;
+ struct dispatch_proc proc;
+#ifdef HAVE_UBUS
+ struct dispatch_ubus ubus;
+#endif
+ };
};
+struct client {
+ struct list_head list;
+ int refcount;
+ int id;
+
+ struct ustream *us;
+ struct ustream_fd sfd;
+#ifdef HAVE_TLS
+ struct ustream_ssl ssl;
+#endif
+ struct uloop_timeout timeout;
+ int requests;
+
+ enum client_state state;
+ bool tls;
+
+ int http_code;
+ struct http_request request;
+ struct uh_addr srv_addr, peer_addr;
+
+ struct blob_buf hdr;
+ struct blob_buf hdr_response;
+ struct dispatch dispatch;
+};
+
+extern char uh_buf[4096];
extern int n_clients;
extern struct config conf;
+extern const char * const http_versions[];
+extern const char * const http_methods[];
+extern struct dispatch_handler cgi_dispatch;
void uh_index_add(const char *filename);
-void uh_accept_client(int fd);
+bool uh_accept_client(int fd, bool tls);
void uh_unblock_listeners(void);
void uh_setup_listeners(void);
int uh_socket_bind(const char *host, const char *port, bool tls);
+int uh_first_tls_port(int family);
+
bool uh_use_chunked(struct client *cl);
void uh_chunk_write(struct client *cl, const void *data, int len);
void uh_chunk_vprintf(struct client *cl, const char *format, va_list arg);
void __printf(4, 5)
uh_client_error(struct client *cl, int code, const char *summary, const char *fmt, ...);
-void uh_handle_file_request(struct client *cl);
+void uh_handle_request(struct client *cl);
+void client_poll_post_data(struct client *cl);
+void uh_client_read_cb(struct client *cl);
+void uh_client_notify_state(struct client *cl);
void uh_auth_add(const char *path, const char *user, const char *pass);
+bool uh_auth_check(struct client *cl, struct path_info *pi);
+
+void uh_close_listen_fds(void);
+void uh_close_fds(void);
+
+void uh_interpreter_add(const char *ext, const char *path);
+void uh_dispatch_add(struct dispatch_handler *d);
+
+void uh_relay_open(struct client *cl, struct relay *r, int fd, int pid);
+void uh_relay_close(struct relay *r, int ret);
+void uh_relay_free(struct relay *r);
+void uh_relay_kill(struct client *cl, struct relay *r);
+
+struct env_var *uh_get_process_vars(struct client *cl, struct path_info *pi);
+bool uh_create_process(struct client *cl, struct path_info *pi, char *url,
+ void (*cb)(struct client *cl, struct path_info *pi, char *url));
+
+int uh_plugin_init(const char *name);
+void uh_plugin_post_init(void);
+
+int uh_handler_add(const char *file);
+int uh_handler_run(struct client *cl, char **url, bool fallback);
+
+struct path_info *uh_path_lookup(struct client *cl, const char *url);
+
+static inline void uh_client_ref(struct client *cl)
+{
+ cl->refcount++;
+}
+
+static inline void uh_client_unref(struct client *cl)
+{
+ if (--cl->refcount)
+ return;
+
+ if (cl->state == CLIENT_STATE_CLEANUP)
+ ustream_state_change(cl->us);
+}
#endif