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-rw-r--r--libevent/http-internal.h206
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diff --git a/libevent/http-internal.h b/libevent/http-internal.h
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+++ b/libevent/http-internal.h
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+/*
+ * Copyright 2001-2007 Niels Provos <provos@citi.umich.edu>
+ * Copyright 2007-2012 Niels Provos and Nick Mathewson
+ *
+ * This header file contains definitions for dealing with HTTP requests
+ * that are internal to libevent. As user of the library, you should not
+ * need to know about these.
+ */
+
+#ifndef HTTP_INTERNAL_H_INCLUDED_
+#define HTTP_INTERNAL_H_INCLUDED_
+
+#include "event2/event_struct.h"
+#include "util-internal.h"
+#include "defer-internal.h"
+
+#define HTTP_CONNECT_TIMEOUT 45
+#define HTTP_WRITE_TIMEOUT 50
+#define HTTP_READ_TIMEOUT 50
+
+enum message_read_status {
+ ALL_DATA_READ = 1,
+ MORE_DATA_EXPECTED = 0,
+ DATA_CORRUPTED = -1,
+ REQUEST_CANCELED = -2,
+ DATA_TOO_LONG = -3
+};
+
+struct evbuffer;
+struct addrinfo;
+struct evhttp_request;
+
+/* Indicates an unknown request method. */
+#define EVHTTP_REQ_UNKNOWN_ (1<<15)
+
+enum evhttp_connection_state {
+ EVCON_DISCONNECTED, /**< not currently connected not trying either*/
+ EVCON_CONNECTING, /**< tries to currently connect */
+ EVCON_IDLE, /**< connection is established */
+ EVCON_READING_FIRSTLINE,/**< reading Request-Line (incoming conn) or
+ **< Status-Line (outgoing conn) */
+ EVCON_READING_HEADERS, /**< reading request/response headers */
+ EVCON_READING_BODY, /**< reading request/response body */
+ EVCON_READING_TRAILER, /**< reading request/response chunked trailer */
+ EVCON_WRITING /**< writing request/response headers/body */
+};
+
+struct event_base;
+
+/* A client or server connection. */
+struct evhttp_connection {
+ /* we use this tailq only if this connection was created for an http
+ * server */
+ TAILQ_ENTRY(evhttp_connection) next;
+
+ evutil_socket_t fd;
+ struct bufferevent *bufev;
+
+ struct event retry_ev; /* for retrying connects */
+
+ char *bind_address; /* address to use for binding the src */
+ ev_uint16_t bind_port; /* local port for binding the src */
+
+ char *address; /* address to connect to */
+ ev_uint16_t port;
+
+ size_t max_headers_size;
+ ev_uint64_t max_body_size;
+
+ int flags;
+#define EVHTTP_CON_INCOMING 0x0001 /* only one request on it ever */
+#define EVHTTP_CON_OUTGOING 0x0002 /* multiple requests possible */
+#define EVHTTP_CON_CLOSEDETECT 0x0004 /* detecting if persistent close */
+/* set when we want to auto free the connection */
+#define EVHTTP_CON_AUTOFREE EVHTTP_CON_PUBLIC_FLAGS_END
+/* Installed when attempt to read HTTP error after write failed, see
+ * EVHTTP_CON_READ_ON_WRITE_ERROR */
+#define EVHTTP_CON_READING_ERROR (EVHTTP_CON_AUTOFREE << 1)
+
+ struct timeval timeout; /* timeout for events */
+ int retry_cnt; /* retry count */
+ int retry_max; /* maximum number of retries */
+ struct timeval initial_retry_timeout; /* Timeout for low long to wait
+ * after first failing attempt
+ * before retry */
+
+ enum evhttp_connection_state state;
+
+ /* for server connections, the http server they are connected with */
+ struct evhttp *http_server;
+
+ TAILQ_HEAD(evcon_requestq, evhttp_request) requests;
+
+ void (*cb)(struct evhttp_connection *, void *);
+ void *cb_arg;
+
+ void (*closecb)(struct evhttp_connection *, void *);
+ void *closecb_arg;
+
+ struct event_callback read_more_deferred_cb;
+
+ struct event_base *base;
+ struct evdns_base *dns_base;
+ int ai_family;
+};
+
+/* A callback for an http server */
+struct evhttp_cb {
+ TAILQ_ENTRY(evhttp_cb) next;
+
+ char *what;
+
+ void (*cb)(struct evhttp_request *req, void *);
+ void *cbarg;
+};
+
+/* both the http server as well as the rpc system need to queue connections */
+TAILQ_HEAD(evconq, evhttp_connection);
+
+/* each bound socket is stored in one of these */
+struct evhttp_bound_socket {
+ TAILQ_ENTRY(evhttp_bound_socket) next;
+
+ struct evconnlistener *listener;
+};
+
+/* server alias list item. */
+struct evhttp_server_alias {
+ TAILQ_ENTRY(evhttp_server_alias) next;
+
+ char *alias; /* the server alias. */
+};
+
+struct evhttp {
+ /* Next vhost, if this is a vhost. */
+ TAILQ_ENTRY(evhttp) next_vhost;
+
+ /* All listeners for this host */
+ TAILQ_HEAD(boundq, evhttp_bound_socket) sockets;
+
+ TAILQ_HEAD(httpcbq, evhttp_cb) callbacks;
+
+ /* All live connections on this host. */
+ struct evconq connections;
+
+ TAILQ_HEAD(vhostsq, evhttp) virtualhosts;
+
+ TAILQ_HEAD(aliasq, evhttp_server_alias) aliases;
+
+ /* NULL if this server is not a vhost */
+ char *vhost_pattern;
+
+ struct timeval timeout;
+
+ size_t default_max_headers_size;
+ ev_uint64_t default_max_body_size;
+ int flags;
+ const char *default_content_type;
+
+ /* Bitmask of all HTTP methods that we accept and pass to user
+ * callbacks. */
+ ev_uint16_t allowed_methods;
+
+ /* Fallback callback if all the other callbacks for this connection
+ don't match. */
+ void (*gencb)(struct evhttp_request *req, void *);
+ void *gencbarg;
+ struct bufferevent* (*bevcb)(struct event_base *, void *);
+ void *bevcbarg;
+
+ struct event_base *base;
+};
+
+/* XXX most of these functions could be static. */
+
+/* resets the connection; can be reused for more requests */
+void evhttp_connection_reset_(struct evhttp_connection *);
+
+/* connects if necessary */
+int evhttp_connection_connect_(struct evhttp_connection *);
+
+enum evhttp_request_error;
+/* notifies the current request that it failed; resets connection */
+EVENT2_EXPORT_SYMBOL
+void evhttp_connection_fail_(struct evhttp_connection *,
+ enum evhttp_request_error error);
+
+enum message_read_status;
+
+EVENT2_EXPORT_SYMBOL
+enum message_read_status evhttp_parse_firstline_(struct evhttp_request *, struct evbuffer*);
+EVENT2_EXPORT_SYMBOL
+enum message_read_status evhttp_parse_headers_(struct evhttp_request *, struct evbuffer*);
+
+void evhttp_start_read_(struct evhttp_connection *);
+void evhttp_start_write_(struct evhttp_connection *);
+
+/* response sending HTML the data in the buffer */
+void evhttp_response_code_(struct evhttp_request *, int, const char *);
+void evhttp_send_page_(struct evhttp_request *, struct evbuffer *);
+
+EVENT2_EXPORT_SYMBOL
+int evhttp_decode_uri_internal(const char *uri, size_t length,
+ char *ret, int decode_plus);
+
+#endif /* HTTP_INTERNAL_H_INCLUDED_ */