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-rw-r--r--libevent/http-internal.h154
1 files changed, 154 insertions, 0 deletions
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 Niels Provos <provos@citi.umich.edu>
+ * All rights reserved.
+ *
+ * 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_H_
+#define _HTTP_H_
+
+#define HTTP_CONNECT_TIMEOUT 45
+#define HTTP_WRITE_TIMEOUT 50
+#define HTTP_READ_TIMEOUT 50
+
+#define HTTP_PREFIX "http://"
+#define HTTP_DEFAULTPORT 80
+
+enum message_read_status {
+ ALL_DATA_READ = 1,
+ MORE_DATA_EXPECTED = 0,
+ DATA_CORRUPTED = -1,
+ REQUEST_CANCELED = -2
+};
+
+enum evhttp_connection_error {
+ EVCON_HTTP_TIMEOUT,
+ EVCON_HTTP_EOF,
+ EVCON_HTTP_INVALID_HEADER
+};
+
+struct evbuffer;
+struct addrinfo;
+struct evhttp_request;
+
+/* A stupid connection object - maybe make this a bufferevent later */
+
+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;
+
+struct evhttp_connection {
+ /* we use tailq only if they were created for an http server */
+ TAILQ_ENTRY(evhttp_connection) (next);
+
+ int fd;
+ struct event ev;
+ struct event close_ev;
+ struct evbuffer *input_buffer;
+ struct evbuffer *output_buffer;
+
+ char *bind_address; /* address to use for binding the src */
+ u_short bind_port; /* local port for binding the src */
+
+ char *address; /* address to connect to */
+ u_short port;
+
+ 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 */
+
+ int timeout; /* timeout in seconds for events */
+ int retry_cnt; /* retry count */
+ int retry_max; /* maximum number of retries */
+
+ 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_base *base;
+};
+
+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 event bind_ev;
+};
+
+struct evhttp {
+ TAILQ_HEAD(boundq, evhttp_bound_socket) sockets;
+
+ TAILQ_HEAD(httpcbq, evhttp_cb) callbacks;
+ struct evconq connections;
+
+ int timeout;
+
+ void (*gencb)(struct evhttp_request *req, void *);
+ void *gencbarg;
+
+ struct event_base *base;
+};
+
+/* 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 *);
+
+/* notifies the current request that it failed; resets connection */
+void evhttp_connection_fail(struct evhttp_connection *,
+ enum evhttp_connection_error error);
+
+void evhttp_get_request(struct evhttp *, int, struct sockaddr *, socklen_t);
+
+int evhttp_hostportfile(char *, char **, u_short *, char **);
+
+int evhttp_parse_firstline(struct evhttp_request *, struct evbuffer*);
+int evhttp_parse_headers(struct evhttp_request *, struct evbuffer*);
+
+void evhttp_start_read(struct evhttp_connection *);
+void evhttp_make_header(struct evhttp_connection *, struct evhttp_request *);
+
+void evhttp_write_buffer(struct evhttp_connection *,
+ void (*)(struct evhttp_connection *, void *), void *);
+
+/* 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 *);
+
+#endif /* _HTTP_H */