| /* |
| * Copyright (c) 2004-2008 Sergey Lyubka <valenok@gmail.com> |
| * All rights reserved |
| * |
| * "THE BEER-WARE LICENSE" (Revision 42): |
| * Sergey Lyubka wrote this file. As long as you retain this notice you |
| * can do whatever you want with this stuff. If we meet some day, and you think |
| * this stuff is worth it, you can buy me a beer in return. |
| * |
| * $Id: shttpd.h,v 1.18 2008/08/23 08:34:50 drozd Exp $ |
| */ |
| |
| #ifndef SHTTPD_HEADER_INCLUDED |
| #define SHTTPD_HEADER_INCLUDED |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif /* __cplusplus */ |
| |
| struct ubuf { |
| char *buf; /* Buffer pointer */ |
| int len; /* Size of a buffer */ |
| int num_bytes; /* Bytes processed by callback */ |
| }; |
| |
| /* |
| * This structure is passed to the user callback function |
| */ |
| struct shttpd_arg { |
| void *priv; /* Private! Do not touch! */ |
| void *state; /* User state */ |
| void *user_data; /* Data from register_uri() */ |
| struct ubuf in; /* Input is here, POST data */ |
| struct ubuf out; /* Output goes here */ |
| |
| unsigned int flags; |
| #define SHTTPD_END_OF_OUTPUT 1 /* No more data do send */ |
| #define SHTTPD_CONNECTION_ERROR 2 /* Server closed the connection */ |
| #define SHTTPD_MORE_POST_DATA 4 /* arg->in has incomplete data */ |
| #define SHTTPD_POST_BUFFER_FULL 8 /* arg->in has max data */ |
| #define SHTTPD_SSI_EVAL_TRUE 16 /* SSI eval callback must set it*/ |
| #define SHTTPD_SUSPEND 32 /* User wants to suspend output */ |
| }; |
| |
| /* |
| * User callback function. Called when certain registered URLs have been |
| * requested. These are the requirements to the callback function: |
| * |
| * 1. It must copy data into 'out.buf' buffer, not more than 'out.len' bytes, |
| * and record how many bytes are copied, into 'out.num_bytes' |
| * 2. It must not call any blocking functions |
| * 3. It must set SHTTPD_END_OF_OUTPUT flag when there is no more data to send |
| * 4. For POST requests, it must process the incoming data (in.buf) of length |
| * 'in.len', and set 'in.num_bytes', which is how many bytes of POST |
| * data was processed and can be discarded by SHTTPD. |
| * 5. If callback allocates arg->state, to keep state, it must deallocate it |
| * at the end of coonection SHTTPD_CONNECTION_ERROR or SHTTPD_END_OF_OUTPUT |
| * 6. If callback function wants to suspend until some event, it must store |
| * arg->priv pointer elsewhere, set SHTTPD_SUSPEND flag and return. When |
| * the event happens, user code should call shttpd_wakeup(priv). |
| * It is safe to call shttpd_wakeup() from any thread. User code must |
| * not call shttpd_wakeup once the connection is closed. |
| */ |
| typedef void (*shttpd_callback_t)(struct shttpd_arg *); |
| |
| /* |
| * shttpd_init Initialize shttpd context |
| * shttpd_fini Dealocate the context, close all connections |
| * shttpd_set_option Set new value for option |
| * shttpd_register_uri Setup the callback function for specified URL |
| * shttpd_poll Do connections processing |
| * shttpd_version return string with SHTTPD version |
| * shttpd_get_var Fetch POST/GET variable value by name. Return value len |
| * shttpd_get_header return value of the specified HTTP header |
| * shttpd_get_env return values for the following pseudo-variables: |
| "REQUEST_METHOD", "REQUEST_URI", |
| * "REMOTE_USER" and "REMOTE_ADDR" |
| * shttpd_printf helper function to output data |
| * shttpd_handle_error register custom HTTP error handler |
| * shttpd_wakeup clear SHTTPD_SUSPEND state for the connection |
| */ |
| |
| typedef int (*basic_auth_callback)(char *user, char *passwd); |
| struct shttpd_ctx; |
| |
| struct shttpd_ctx *shttpd_init(int argc, char *argv[]); |
| int shttpd_set_option(struct shttpd_ctx *, const char *opt, const char *val); |
| void shttpd_fini(struct shttpd_ctx *); |
| void shttpd_register_uri(struct shttpd_ctx *ctx, const char *uri, |
| shttpd_callback_t callback, void *const user_data); |
| void shttpd_protect_uri(struct shttpd_ctx *ctx, |
| const char *uri, const char *password_file, basic_auth_callback cb, int type); |
| void shttpd_poll(struct shttpd_ctx *, int milliseconds); |
| const char *shttpd_version(void); |
| int shttpd_get_var(const char *var, const char *buf, int buf_len, |
| char *value, int value_len); |
| const char *shttpd_get_header(struct shttpd_arg *, const char *header_name); |
| const char *shttpd_get_env(struct shttpd_arg *, const char *name); |
| void shttpd_get_http_version(struct shttpd_arg *, |
| unsigned long *major, unsigned long *minor); |
| size_t shttpd_printf(struct shttpd_arg *, const char *fmt, ...); |
| void shttpd_handle_error(struct shttpd_ctx *ctx, int status, |
| shttpd_callback_t func, void *const data); |
| void shttpd_register_ssi_func(struct shttpd_ctx *ctx, const char *name, |
| shttpd_callback_t func, void *const user_data); |
| void shttpd_wakeup(const void *priv); |
| int shttpd_join(struct shttpd_ctx *, fd_set *, fd_set *, int *max_fd); |
| int shttpd_socketpair(int sp[2]); |
| |
| #ifdef __cplusplus |
| } |
| #endif /* __cplusplus */ |
| |
| #endif /* SHTTPD_HEADER_INCLUDED */ |