+++ /dev/null
-/*
- * Copyright (c) 2004-2005 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.
- */
-
-#ifndef DEFS_HEADER_DEFINED
-#define DEFS_HEADER_DEFINED
-
-#include "std_includes.h"
-#include "llist.h"
-#include "io.h"
-#include "shttpd.h"
-#include "md5.h"
-#include "config.h"
-
-#define NELEMS(ar) (sizeof(ar) / sizeof(ar[0]))
-
-#ifdef _DEBUG
-#define DBG(x) do { printf x ; putchar('\n'); fflush(stdout); } while (0)
-#else
-#define DBG(x)
-#endif /* DEBUG */
-
-#ifdef EMBEDDED
-#include "shttpd.h"
-#endif /* EMBEDDED */
-
-/*
- * Darwin prior to 7.0 and Win32 do not have socklen_t
- */
-#ifdef NO_SOCKLEN_T
-typedef int socklen_t;
-#endif /* NO_SOCKLEN_T */
-
-/*
- * For parsing. This guy represents a substring.
- */
-struct vec {
- const char *ptr;
- int len;
-};
-
-#if !defined(_WIN32)
-enum {FALSE, TRUE};
-#endif /* _WIN32 */
-enum {METHOD_GET, METHOD_POST, METHOD_PUT, METHOD_DELETE, METHOD_HEAD};
-enum {HDR_DATE, HDR_INT, HDR_STRING}; /* HTTP header types */
-enum {E_FATAL = 1, E_LOG = 2}; /* Flags for elog() function */
-typedef unsigned long big_int_t; /* Type for Content-Length */
-
-/*
- * Unified socket address
- */
-struct usa {
- socklen_t len;
- union {
- struct sockaddr sa;
- struct sockaddr_in sin;
- } u;
-};
-
-/*
- * This thing is aimed to hold values of any type.
- * Used to store parsed headers' values.
- */
-union variant {
- char *v_str;
- int v_int;
- big_int_t v_big_int;
- time_t v_time;
- void (*v_func)(void);
- void *v_void;
- struct vec v_vec;
-};
-
-/*
- * This is used only in embedded configuration. This structure holds a
- * registered URI, associated callback function with callback data.
- * For non-embedded compilation shttpd_callback_t is not defined, so
- * we use union variant to keep the compiler silent.
- */
-struct registered_uri {
- struct llhead link;
- const char *uri;
- union variant callback;
- void *callback_data;
-};
-
-/*
- * User may want to handle certain errors. This structure holds the
- * handlers for corresponding error codes.
- */
-struct error_handler {
- struct llhead link;
- int code;
- union variant callback;
- void *callback_data;
-};
-
-struct http_header {
- int len; /* Header name length */
- int type; /* Header type */
- size_t offset; /* Value placeholder */
- const char *name; /* Header name */
-};
-
-/*
- * This guy holds parsed HTTP headers
- */
-struct headers {
- union variant cl; /* Content-Length: */
- union variant ct; /* Content-Type: */
- union variant connection; /* Connection: */
- union variant ims; /* If-Modified-Since: */
- union variant user; /* Remote user name */
- union variant auth; /* Authorization */
- union variant useragent; /* User-Agent: */
- union variant referer; /* Referer: */
- union variant cookie; /* Cookie: */
- union variant location; /* Location: */
- union variant range; /* Range: */
- union variant status; /* Status: */
- union variant transenc; /* Transfer-Encoding: */
-};
-
-/* Must go after union variant definition */
-#include "ssl.h"
-
-/*
- * The communication channel
- */
-union channel {
- int fd; /* Regular static file */
- int sock; /* Connected socket */
- struct {
- int sock; /* XXX important. must be first */
- SSL *ssl; /* shttpd_poll() assumes that */
- } ssl; /* SSL-ed socket */
- struct {
- DIR *dirp;
- char *path;
- } dir; /* Opened directory */
- struct {
- void *state; /* For keeping state */
- union variant func; /* User callback function */
- void *data; /* User defined parameters */
- } emb; /* Embedded, user callback */
-};
-
-struct stream;
-
-/*
- * IO class descriptor (file, directory, socket, SSL, CGI, etc)
- * These classes are defined in io_*.c files.
- */
-struct io_class {
- const char *name;
- int (*read)(struct stream *, void *buf, size_t len);
- int (*write)(struct stream *, const void *buf, size_t len);
- void (*close)(struct stream *);
-};
-
-/*
- * Data exchange stream. It is backed by some communication channel:
- * opened file, socket, etc. The 'read' and 'write' methods are
- * determined by a communication channel.
- */
-struct stream {
- struct conn *conn;
- union channel chan; /* Descriptor */
- struct io io; /* IO buffer */
- const struct io_class *io_class; /* IO class */
- int nread_last; /* Bytes last read */
- int headers_len;
- big_int_t content_len;
- unsigned int flags;
-#define FLAG_HEADERS_PARSED 1
-#define FLAG_SSL_ACCEPTED 2
-#define FLAG_R 4 /* Can read in general */
-#define FLAG_W 8 /* Can write in general */
-#define FLAG_CLOSED 16
-#define FLAG_DONT_CLOSE 32
-#define FLAG_ALWAYS_READY 64 /* File, dir, user_func */
-};
-
-struct conn {
- struct llhead link; /* Connections chain */
- struct shttpd_ctx *ctx; /* Context this conn belongs to */
- struct usa sa; /* Remote socket address */
- time_t birth_time; /* Creation time */
- time_t expire_time; /* Expiration time */
-
- int loc_port; /* Local port */
- int status; /* Reply status code */
- int method; /* Request method */
- char *uri; /* Decoded URI */
- unsigned long major_version; /* Major HTTP version number */
- unsigned long minor_version; /* Minor HTTP version number */
- char *request; /* Request line */
- char *headers; /* Request headers */
- char *query; /* QUERY_STRING part of the URI */
- char *path_info; /* PATH_INFO thing */
- struct vec mime_type; /* Mime type */
-
- struct headers ch; /* Parsed client headers */
-
- struct stream loc; /* Local stream */
- struct stream rem; /* Remote stream */
-
-#if !defined(NO_SSI)
- void *ssi; /* SSI descriptor */
-#endif /* NO_SSI */
-};
-
-enum {
- OPT_ROOT, OPT_INDEX_FILES, OPT_PORTS, OPT_DIR_LIST,
- OPT_CGI_EXTENSIONS, OPT_CGI_INTERPRETER, OPT_CGI_ENVIRONMENT,
- OPT_SSI_EXTENSIONS, OPT_AUTH_REALM, OPT_AUTH_GPASSWD,
- OPT_AUTH_PUT, OPT_ACCESS_LOG, OPT_ERROR_LOG, OPT_MIME_TYPES,
- OPT_SSL_CERTIFICATE, OPT_ALIASES, OPT_ACL, OPT_INETD, OPT_UID,
- OPT_CFG_URI, OPT_PROTECT,
- NUM_OPTIONS
-};
-
-/*
- * SHTTPD context
- */
-struct shttpd_ctx {
- time_t start_time; /* Start time */
- int nactive; /* # of connections now */
- unsigned long nrequests; /* Requests made */
- uint64_t in, out; /* IN/OUT traffic counters */
- SSL_CTX *ssl_ctx; /* SSL context */
- struct llhead connections; /* List of connections */
-
- struct llhead registered_uris;/* User urls */
- struct llhead error_handlers; /* Embedded error handlers */
- struct llhead acl; /* Access control list */
- struct llhead ssi_funcs; /* SSI callback functions */
- struct llhead listeners; /* Listening sockets */
-
- FILE *access_log; /* Access log stream */
- FILE *error_log; /* Error log stream */
-
- char *options[NUM_OPTIONS]; /* Configurable options */
-
-#if defined(_WIN32)
- CRITICAL_SECTION mutex; /* For MT case */
- HANDLE ev[2]; /* For thread synchronization */
-#elif defined(__rtems__)
- rtems_id mutex;
-#endif /* _WIN32 */
-};
-
-#define IS_TRUE(ctx, opt) ((ctx)->options[opt] && (ctx)->options[opt][0] =='1')
-
-/*
- * In SHTTPD, list of values are represented as comma or space separated
- * string. For example, list of CGI extensions can be represented as
- * ".cgi,.php,.pl", or ".cgi .php .pl". The macro that follows allows to
- * loop through the individual values in that list.
- *
- * A "const char *" pointer and size_t variable must be passed to the macro.
- * Spaces or commas can be used as delimiters (macro DELIM_CHARS).
- *
- * In every iteration of the loop, "s" points to the current value, and
- * "len" specifies its length. The code inside loop must not change
- * "s" and "len" parameters.
- */
-#define FOR_EACH_WORD_IN_LIST(s,len) \
- for (; s != NULL && (len = strcspn(s, DELIM_CHARS)) != 0; \
- s += len, s+= strspn(s, DELIM_CHARS))
-
-/*
- * IPv4 ACL entry. Specifies subnet with deny/allow flag
- */
-struct acl {
- struct llhead link;
- uint32_t ip; /* IP, in network byte order */
- uint32_t mask; /* Also in network byte order */
- int flag; /* Either '+' or '-' */
-};
-
-/*
- * shttpd.c
- */
-extern time_t current_time; /* Current UTC time */
-extern int tz_offset; /* Offset from GMT time zone */
-extern const struct vec known_http_methods[];
-
-extern void stop_stream(struct stream *stream);
-extern int url_decode(const char *, int, char *dst, int);
-extern void send_server_error(struct conn *, int code, const char *reason);
-extern int get_headers_len(const char *buf, size_t buflen);
-extern void parse_headers(const char *s, int len, struct headers *parsed);
-extern void open_listening_ports(struct shttpd_ctx *ctx);
-extern void get_mime_type(struct shttpd_ctx *, const char *, int, struct vec *);
-extern void free_list(struct llhead *head, void (*)(struct llhead *));
-extern void registered_uri_destructor(struct llhead *);
-extern void listener_destructor(struct llhead *);
-
-/*
- * config.c
- */
-extern void usage(const char *prog);
-
-/*
- * log.c
- */
-extern void elog(int flags, struct conn *c, const char *fmt, ...);
-extern void log_access(FILE *fp, const struct conn *c);
-
-/*
- * string.c
- */
-extern void my_strlcpy(register char *, register const char *, size_t);
-extern int my_strncasecmp(register const char *,
- register const char *, size_t);
-extern char *my_strndup(const char *ptr, size_t len);
-extern char *my_strdup(const char *str);
-extern int my_snprintf(char *buf, size_t buflen, const char *fmt, ...);
-extern int match_extension(const char *path, const char *ext_list);
-
-/*
- * compat_*.c
- */
-extern void set_close_on_exec(int fd);
-extern int set_non_blocking_mode(int fd);
-extern int my_stat(const char *, struct stat *stp);
-extern int my_open(const char *, int flags, int mode);
-extern int my_remove(const char *);
-extern int my_rename(const char *, const char *);
-extern int my_mkdir(const char *, int);
-extern char * my_getcwd(char *, int);
-extern int spawn_process(struct conn *c, const char *prog,
- char *envblk, char *envp[], int sock, const char *dir);
-
-/*
- * io_*.c
- */
-extern const struct io_class io_file;
-extern const struct io_class io_socket;
-extern const struct io_class io_ssl;
-extern const struct io_class io_cgi;
-extern const struct io_class io_dir;
-extern const struct io_class io_embedded;
-extern const struct io_class io_ssi;
-
-extern int put_dir(const char *path);
-extern void get_dir(struct conn *c);
-extern void get_file(struct conn *c, struct stat *stp);
-extern void ssl_handshake(struct stream *stream);
-extern void setup_embedded_stream(struct conn *, union variant, void *);
-extern struct registered_uri *is_registered_uri(struct shttpd_ctx *,
- const char *uri);
-extern void do_ssi(struct conn *);
-extern void ssi_func_destructor(struct llhead *lp);
-
-/*
- * auth.c
- */
-extern int check_authorization(struct conn *c, const char *path);
-extern int is_authorized_for_put(struct conn *c);
-extern void send_authorization_request(struct conn *c);
-extern int edit_passwords(const char *fname, const char *domain,
- const char *user, const char *pass);
-
-/*
- * cgi.c
- */
-extern int run_cgi(struct conn *c, const char *prog);
-extern void do_cgi(struct conn *c);
-
-#define CGI_REPLY "HTTP/1.1 OK\r\n"
-#define CGI_REPLY_LEN (sizeof(CGI_REPLY) - 1)
-
-#endif /* DEFS_HEADER_DEFINED */
projects / fms.git / blobdiff