uhttpd: - more robust handling of network failures on static file serving - support unlimited amount of authentication realms, listener and client sockets - support for interpreters (.php => /usr/bin/php-cgi)
SVN-Revision: 22630
This commit is contained in:
Jo-Philipp Wich
parent
63991ba875
commit
f2b534d341
10 changed files with 366 additions and 257 deletions
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@ -8,7 +8,7 @@
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include $(TOPDIR)/rules.mk
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PKG_NAME:=uhttpd
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PKG_RELEASE:=14
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PKG_RELEASE:=15
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PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
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PKG_BUILD_DEPENDS := libcyassl liblua
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@ -27,6 +27,13 @@ config uhttpd main
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# Default is /cgi-bin
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option cgi_prefix /cgi-bin
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# List of extension->interpreter mappings.
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# Files with an associated interpreter can
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# be called outside of the CGI prefix and do
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# not need to be executable.
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# list interpreter ".php=/usr/bin/php-cgi"
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# list interpreter ".cgi=/usr/bin/perl"
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# Lua url prefix and handler script.
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# Lua support is disabled if no prefix given.
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# option lua_prefix /luci
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@ -56,7 +56,7 @@ start_instance()
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local cfg="$1"
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local realm="$(uci_get system.@system[0].hostname)"
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local listen http https
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local listen http https interpreter path
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append_arg "$cfg" home "-h"
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append_arg "$cfg" realm "-r" "${realm:-OpenWrt}"
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@ -78,6 +78,11 @@ start_instance()
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append UHTTPD_ARGS "-p $listen"
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done
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config_get interpreter "$cfg" interpreter
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for path in $interpreter; do
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append UHTTPD_ARGS "-i $path"
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done
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config_get https "$cfg" listen_https
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config_get UHTTPD_KEY "$cfg" key /etc/uhttpd.key
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config_get UHTTPD_CERT "$cfg" cert /etc/uhttpd.crt
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@ -135,8 +135,10 @@ static int uh_cgi_error_500(struct client *cl, struct http_request *req, const c
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}
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void uh_cgi_request(struct client *cl, struct http_request *req, struct path_info *pi)
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{
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void uh_cgi_request(
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struct client *cl, struct http_request *req,
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struct path_info *pi, struct interpreter *ip
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) {
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int i, hdroff, bufoff;
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int hdrlen = 0;
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int buflen = 0;
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@ -199,9 +201,9 @@ void uh_cgi_request(struct client *cl, struct http_request *req, struct path_inf
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dup2(rfd[1], 1);
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dup2(wfd[0], 0);
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/* check for regular, world-executable file */
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if( (pi->stat.st_mode & S_IFREG) &&
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(pi->stat.st_mode & S_IXOTH)
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/* check for regular, world-executable file _or_ interpreter */
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if( ((pi->stat.st_mode & S_IFREG) &&
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(pi->stat.st_mode & S_IXOTH)) || (ip != NULL)
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) {
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/* build environment */
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clearenv();
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@ -320,6 +322,9 @@ void uh_cgi_request(struct client *cl, struct http_request *req, struct path_inf
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if( chdir(pi->root) )
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perror("chdir()");
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if( ip != NULL )
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execl(ip->path, ip->path, pi->phys, NULL);
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else
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execl(pi->phys, pi->phys, NULL);
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/* in case it fails ... */
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@ -327,7 +332,7 @@ void uh_cgi_request(struct client *cl, struct http_request *req, struct path_inf
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"Status: 500 Internal Server Error\r\n\r\n"
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"Unable to launch the requested CGI program:\n"
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" %s: %s\n",
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pi->phys, strerror(errno)
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ip ? ip->path : pi->phys, strerror(errno)
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);
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}
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@ -25,7 +25,8 @@
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#include <linux/limits.h>
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void uh_cgi_request(
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struct client *cl, struct http_request *req, struct path_info *pi
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struct client *cl, struct http_request *req,
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struct path_info *pi, struct interpreter *ip
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);
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#endif
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@ -98,9 +98,9 @@ static char * uh_file_header_lookup(struct http_request *req, const char *name)
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}
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#define ensure_ret(x) \
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do { if( x < 0 ) return; } while(0)
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do { if( x < 0 ) return -1; } while(0)
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static void uh_file_response_ok_hdrs(struct client *cl, struct http_request *req, struct stat *s)
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static int uh_file_response_ok_hdrs(struct client *cl, struct http_request *req, struct stat *s)
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{
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ensure_ret(uh_http_sendf(cl, NULL, "Connection: close\r\n"));
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@ -110,26 +110,26 @@ static void uh_file_response_ok_hdrs(struct client *cl, struct http_request *req
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ensure_ret(uh_http_sendf(cl, NULL, "Last-Modified: %s\r\n", uh_file_unix2date(s->st_mtime)));
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}
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ensure_ret(uh_http_sendf(cl, NULL, "Date: %s\r\n", uh_file_unix2date(time(NULL))));
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return uh_http_sendf(cl, NULL, "Date: %s\r\n", uh_file_unix2date(time(NULL)));
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}
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static void uh_file_response_200(struct client *cl, struct http_request *req, struct stat *s)
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static int uh_file_response_200(struct client *cl, struct http_request *req, struct stat *s)
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{
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ensure_ret(uh_http_sendf(cl, NULL, "HTTP/%.1f 200 OK\r\n", req->version));
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uh_file_response_ok_hdrs(cl, req, s);
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return uh_file_response_ok_hdrs(cl, req, s);
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}
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static void uh_file_response_304(struct client *cl, struct http_request *req, struct stat *s)
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static int uh_file_response_304(struct client *cl, struct http_request *req, struct stat *s)
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{
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ensure_ret(uh_http_sendf(cl, NULL, "HTTP/%.1f 304 Not Modified\r\n", req->version));
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uh_file_response_ok_hdrs(cl, req, s);
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return uh_file_response_ok_hdrs(cl, req, s);
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}
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static void uh_file_response_412(struct client *cl, struct http_request *req)
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static int uh_file_response_412(struct client *cl, struct http_request *req)
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{
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ensure_ret(uh_http_sendf(cl, NULL,
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return uh_http_sendf(cl, NULL,
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"HTTP/%.1f 412 Precondition Failed\r\n"
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"Connection: close\r\n", req->version));
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"Connection: close\r\n", req->version);
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}
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static int uh_file_if_match(struct client *cl, struct http_request *req, struct stat *s)
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@ -350,7 +350,7 @@ void uh_file_request(struct client *cl, struct http_request *req, struct path_in
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uh_file_if_none_match(cl, req, &pi->stat)
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) {
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/* write status */
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uh_file_response_200(cl, req, &pi->stat);
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ensure_out(uh_file_response_200(cl, req, &pi->stat));
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ensure_out(uh_http_sendf(cl, NULL, "Content-Type: %s\r\n", uh_file_mime_lookup(pi->name)));
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ensure_out(uh_http_sendf(cl, NULL, "Content-Length: %i\r\n", pi->stat.st_size));
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@ -385,7 +385,7 @@ void uh_file_request(struct client *cl, struct http_request *req, struct path_in
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else if( (pi->stat.st_mode & S_IFDIR) && !cl->server->conf->no_dirlists )
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{
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/* write status */
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uh_file_response_200(cl, req, NULL);
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ensure_out(uh_file_response_200(cl, req, NULL));
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if( req->version > 1.0 )
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ensure_out(uh_http_send(cl, NULL, "Transfer-Encoding: chunked\r\n", -1));
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@ -605,8 +605,7 @@ struct path_info * uh_path_lookup(struct client *cl, const char *url)
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}
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static char uh_realms[UH_LIMIT_AUTHREALMS * sizeof(struct auth_realm)] = { 0 };
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static int uh_realm_count = 0;
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static struct auth_realm *uh_realms = NULL;
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struct auth_realm * uh_auth_add(char *path, char *user, char *pass)
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{
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@ -614,11 +613,8 @@ struct auth_realm * uh_auth_add(char *path, char *user, char *pass)
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struct passwd *pwd;
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struct spwd *spwd;
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if( uh_realm_count < UH_LIMIT_AUTHREALMS )
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if((new = (struct auth_realm *)malloc(sizeof(struct auth_realm))) != NULL)
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{
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new = (struct auth_realm *)
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&uh_realms[uh_realm_count * sizeof(struct auth_realm)];
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memset(new, 0, sizeof(struct auth_realm));
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memcpy(new->path, path,
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@ -655,9 +651,13 @@ struct auth_realm * uh_auth_add(char *path, char *user, char *pass)
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if( new->pass[0] )
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{
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uh_realm_count++;
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new->next = uh_realms;
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uh_realms = new;
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return new;
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}
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free(new);
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}
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return NULL;
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@ -677,11 +677,8 @@ int uh_auth_check(
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protected = 0;
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/* check whether at least one realm covers the requested url */
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for( i = 0; i < uh_realm_count; i++ )
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for( realm = uh_realms; realm; realm = realm->next )
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{
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realm = (struct auth_realm *)
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&uh_realms[i * sizeof(struct auth_realm)];
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rlen = strlen(realm->path);
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if( (plen >= rlen) && !strncasecmp(pi->name, realm->path, rlen) )
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@ -721,11 +718,8 @@ int uh_auth_check(
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if( user && pass )
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{
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/* find matching realm */
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for( i = 0, realm = NULL; i < uh_realm_count; i++ )
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for( realm = uh_realms; realm; realm = realm->next )
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{
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realm = (struct auth_realm *)
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&uh_realms[i * sizeof(struct auth_realm)];
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rlen = strlen(realm->path);
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if( (plen >= rlen) &&
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@ -769,22 +763,17 @@ int uh_auth_check(
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}
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static char uh_listeners[UH_LIMIT_LISTENERS * sizeof(struct listener)] = { 0 };
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static char uh_clients[UH_LIMIT_CLIENTS * sizeof(struct client)] = { 0 };
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static int uh_listener_count = 0;
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static int uh_client_count = 0;
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static struct listener *uh_listeners = NULL;
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static struct client *uh_clients = NULL;
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struct listener * uh_listener_add(int sock, struct config *conf)
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{
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struct listener *new = NULL;
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socklen_t sl;
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if( uh_listener_count < UH_LIMIT_LISTENERS )
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if( (new = (struct listener *)malloc(sizeof(struct listener))) != NULL )
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{
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new = (struct listener *)
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&uh_listeners[uh_listener_count * sizeof(struct listener)];
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memset(new, 0, sizeof(struct listener));
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new->socket = sock;
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new->conf = conf;
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@ -794,24 +783,22 @@ struct listener * uh_listener_add(int sock, struct config *conf)
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memset(&(new->addr), 0, sl);
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getsockname(sock, (struct sockaddr *) &(new->addr), &sl);
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uh_listener_count++;
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}
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new->next = uh_listeners;
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uh_listeners = new;
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return new;
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}
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return NULL;
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}
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struct listener * uh_listener_lookup(int sock)
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{
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struct listener *cur = NULL;
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int i;
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for( i = 0; i < uh_listener_count; i++ )
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{
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cur = (struct listener *) &uh_listeners[i * sizeof(struct listener)];
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for( cur = uh_listeners; cur; cur = cur->next )
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if( cur->socket == sock )
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return cur;
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}
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return NULL;
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}
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@ -822,10 +809,9 @@ struct client * uh_client_add(int sock, struct listener *serv)
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struct client *new = NULL;
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socklen_t sl;
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if( uh_client_count < UH_LIMIT_CLIENTS )
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if( (new = (struct client *)malloc(sizeof(struct client))) != NULL )
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{
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new = (struct client *)
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&uh_clients[uh_client_count * sizeof(struct client)];
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memset(new, 0, sizeof(struct client));
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new->socket = sock;
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new->server = serv;
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@ -840,7 +826,8 @@ struct client * uh_client_add(int sock, struct listener *serv)
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memset(&(new->servaddr), 0, sl);
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getsockname(sock, (struct sockaddr *) &(new->servaddr), &sl);
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uh_client_count++;
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new->next = uh_clients;
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uh_clients = new;
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}
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return new;
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@ -849,30 +836,72 @@ struct client * uh_client_add(int sock, struct listener *serv)
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struct client * uh_client_lookup(int sock)
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{
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struct client *cur = NULL;
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int i;
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for( i = 0; i < uh_client_count; i++ )
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{
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cur = (struct client *) &uh_clients[i * sizeof(struct client)];
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for( cur = uh_clients; cur; cur = cur->next )
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if( cur->socket == sock )
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return cur;
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}
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return NULL;
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}
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void uh_client_remove(int sock)
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{
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struct client *del = uh_client_lookup(sock);
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struct client *cur = NULL;
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struct client *prv = NULL;
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if( del )
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for( cur = uh_clients; cur; prv = cur, cur = cur->next )
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{
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memmove(del, del + 1,
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sizeof(uh_clients) - (int)((char *)del - uh_clients) - sizeof(struct client));
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if( cur->socket == sock )
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{
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if( prv )
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prv->next = cur->next;
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else
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uh_clients = cur->next;
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uh_client_count--;
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free(cur);
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break;
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}
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}
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}
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#ifdef HAVE_CGI
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static struct interpreter *uh_interpreters = NULL;
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struct interpreter * uh_interpreter_add(const char *extn, const char *path)
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{
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struct interpreter *new = NULL;
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if( (new = (struct interpreter *)
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malloc(sizeof(struct interpreter))) != NULL )
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{
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memset(new, 0, sizeof(struct interpreter));
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memcpy(new->extn, extn, min(strlen(extn), sizeof(new->extn)-1));
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memcpy(new->path, path, min(strlen(path), sizeof(new->path)-1));
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new->next = uh_interpreters;
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uh_interpreters = new;
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return new;
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}
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return NULL;
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}
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struct interpreter * uh_interpreter_lookup(const char *path)
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{
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struct interpreter *cur = NULL;
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const char *e;
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for( cur = uh_interpreters; cur; cur = cur->next )
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{
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e = &path[max(strlen(path) - strlen(cur->extn), 0)];
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if( !strcmp(e, cur->extn) )
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return cur;
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}
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return NULL;
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}
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#endif
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@ -101,4 +101,9 @@ struct client * uh_client_add(int sock, struct listener *serv);
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struct client * uh_client_lookup(int sock);
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void uh_client_remove(int sock);
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#ifdef HAVE_CGI
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struct interpreter * uh_interpreter_add(const char *extn, const char *path);
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struct interpreter * uh_interpreter_lookup(const char *path);
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#endif
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#endif
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@ -51,8 +51,8 @@ static void uh_config_parse(struct config *conf)
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{
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FILE *c;
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char line[512];
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char *user = NULL;
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char *pass = NULL;
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char *col1 = NULL;
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char *col2 = NULL;
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char *eol = NULL;
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const char *path = conf->file ? conf->file : "/etc/httpd.conf";
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@ -66,35 +66,51 @@ static void uh_config_parse(struct config *conf)
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{
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if( (line[0] == '/') && (strchr(line, ':') != NULL) )
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{
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if( !(user = strchr(line, ':')) || (*user++ = 0) ||
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!(pass = strchr(user, ':')) || (*pass++ = 0) ||
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!(eol = strchr(pass, '\n')) || (*eol++ = 0) )
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if( !(col1 = strchr(line, ':')) || (*col1++ = 0) ||
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!(col2 = strchr(col1, ':')) || (*col2++ = 0) ||
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!(eol = strchr(col2, '\n')) || (*eol++ = 0) )
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continue;
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if( !uh_auth_add(line, user, pass) )
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if( !uh_auth_add(line, col1, col2) )
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{
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fprintf(stderr,
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"Notice: No password set for user %s, ignoring "
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"authentication on %s\n", user, line
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"authentication on %s\n", col1, line
|
||||
);
|
||||
}
|
||||
}
|
||||
else if( !strncmp(line, "I:", 2) )
|
||||
{
|
||||
if( !(user = strchr(line, ':')) || (*user++ = 0) ||
|
||||
!(eol = strchr(user, '\n')) || (*eol++ = 0) )
|
||||
if( !(col1 = strchr(line, ':')) || (*col1++ = 0) ||
|
||||
!(eol = strchr(col1, '\n')) || (*eol++ = 0) )
|
||||
continue;
|
||||
|
||||
conf->index_file = strdup(user);
|
||||
conf->index_file = strdup(col1);
|
||||
}
|
||||
else if( !strncmp(line, "E404:", 5) )
|
||||
{
|
||||
if( !(user = strchr(line, ':')) || (*user++ = 0) ||
|
||||
!(eol = strchr(user, '\n')) || (*eol++ = 0) )
|
||||
if( !(col1 = strchr(line, ':')) || (*col1++ = 0) ||
|
||||
!(eol = strchr(col1, '\n')) || (*eol++ = 0) )
|
||||
continue;
|
||||
|
||||
conf->error_handler = strdup(user);
|
||||
conf->error_handler = strdup(col1);
|
||||
}
|
||||
#ifdef HAVE_CGI
|
||||
else if( (line[0] == '.') && (strchr(line, ':') != NULL) )
|
||||
{
|
||||
if( !(col1 = strchr(line, ':')) || (*col1++ = 0) ||
|
||||
!(eol = strchr(col1, '\n')) || (*eol++ = 0) )
|
||||
continue;
|
||||
|
||||
if( !uh_interpreter_add(line, col1) )
|
||||
{
|
||||
fprintf(stderr,
|
||||
"Unable to add interpreter %s for extension %s: "
|
||||
"Out of memory\n", col1, line
|
||||
);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
fclose(c);
|
||||
|
|
@ -162,11 +178,7 @@ static int uh_socket_bind(
|
|||
/* add listener to global list */
|
||||
if( ! (l = uh_listener_add(sock, conf)) )
|
||||
{
|
||||
fprintf(stderr,
|
||||
"uh_listener_add(): Can not create more than "
|
||||
"%i listen sockets\n", UH_LIMIT_LISTENERS
|
||||
);
|
||||
|
||||
fprintf(stderr, "uh_listener_add(): Failed to allocate memory\n");
|
||||
goto error;
|
||||
}
|
||||
|
||||
|
|
@ -397,6 +409,7 @@ static struct http_request * uh_http_header_recv(struct client *cl)
|
|||
return NULL;
|
||||
}
|
||||
|
||||
#if defined(HAVE_LUA) || defined(HAVE_CGI)
|
||||
static int uh_path_match(const char *prefix, const char *url)
|
||||
{
|
||||
if( (strstr(url, prefix) == url) &&
|
||||
|
|
@ -409,23 +422,193 @@ static int uh_path_match(const char *prefix, const char *url)
|
|||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
static void uh_dispatch_request(
|
||||
struct client *cl, struct http_request *req, struct path_info *pin
|
||||
) {
|
||||
#ifdef HAVE_CGI
|
||||
struct interpreter *ipr = NULL;
|
||||
|
||||
if( uh_path_match(cl->server->conf->cgi_prefix, pin->name) ||
|
||||
(ipr = uh_interpreter_lookup(pin->phys)) )
|
||||
{
|
||||
uh_cgi_request(cl, req, pin, ipr);
|
||||
}
|
||||
else
|
||||
#endif
|
||||
{
|
||||
uh_file_request(cl, req, pin);
|
||||
}
|
||||
}
|
||||
|
||||
static void uh_mainloop(struct config *conf, fd_set serv_fds, int max_fd)
|
||||
{
|
||||
/* master file descriptor list */
|
||||
fd_set used_fds, read_fds;
|
||||
|
||||
/* working structs */
|
||||
struct http_request *req;
|
||||
struct path_info *pin;
|
||||
struct client *cl;
|
||||
|
||||
/* maximum file descriptor number */
|
||||
int new_fd, cur_fd = 0;
|
||||
|
||||
/* clear the master and temp sets */
|
||||
FD_ZERO(&used_fds);
|
||||
FD_ZERO(&read_fds);
|
||||
|
||||
/* backup server descriptor set */
|
||||
used_fds = serv_fds;
|
||||
|
||||
/* loop */
|
||||
while(run)
|
||||
{
|
||||
/* create a working copy of the used fd set */
|
||||
read_fds = used_fds;
|
||||
|
||||
/* sleep until socket activity */
|
||||
if( select(max_fd + 1, &read_fds, NULL, NULL, NULL) == -1 )
|
||||
{
|
||||
perror("select()");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* run through the existing connections looking for data to be read */
|
||||
for( cur_fd = 0; cur_fd <= max_fd; cur_fd++ )
|
||||
{
|
||||
/* is a socket managed by us */
|
||||
if( FD_ISSET(cur_fd, &read_fds) )
|
||||
{
|
||||
/* is one of our listen sockets */
|
||||
if( FD_ISSET(cur_fd, &serv_fds) )
|
||||
{
|
||||
/* handle new connections */
|
||||
if( (new_fd = accept(cur_fd, NULL, 0)) != -1 )
|
||||
{
|
||||
/* add to global client list */
|
||||
if( (cl = uh_client_add(new_fd, uh_listener_lookup(cur_fd))) != NULL )
|
||||
{
|
||||
#ifdef HAVE_TLS
|
||||
/* setup client tls context */
|
||||
if( conf->tls )
|
||||
conf->tls_accept(cl);
|
||||
#endif
|
||||
|
||||
/* add client socket to global fdset */
|
||||
FD_SET(new_fd, &used_fds);
|
||||
fd_cloexec(new_fd);
|
||||
max_fd = max(max_fd, new_fd);
|
||||
}
|
||||
|
||||
/* insufficient resources */
|
||||
else
|
||||
{
|
||||
fprintf(stderr,
|
||||
"uh_client_add(): Cannot allocate memory\n");
|
||||
|
||||
close(new_fd);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* is a client socket */
|
||||
else
|
||||
{
|
||||
if( ! (cl = uh_client_lookup(cur_fd)) )
|
||||
{
|
||||
/* this should not happen! */
|
||||
fprintf(stderr,
|
||||
"uh_client_lookup(): No entry for fd %i!\n",
|
||||
cur_fd);
|
||||
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
/* parse message header */
|
||||
if( (req = uh_http_header_recv(cl)) != NULL )
|
||||
{
|
||||
/* RFC1918 filtering required? */
|
||||
if( conf->rfc1918_filter &&
|
||||
sa_rfc1918(&cl->peeraddr) &&
|
||||
!sa_rfc1918(&cl->servaddr) )
|
||||
{
|
||||
uh_http_sendhf(cl, 403, "Forbidden",
|
||||
"Rejected request from RFC1918 IP "
|
||||
"to public server address");
|
||||
}
|
||||
else
|
||||
#ifdef HAVE_LUA
|
||||
/* Lua request? */
|
||||
if( conf->lua_state &&
|
||||
uh_path_match(conf->lua_prefix, req->url) )
|
||||
{
|
||||
conf->lua_request(cl, req, conf->lua_state);
|
||||
}
|
||||
else
|
||||
#endif
|
||||
/* dispatch request */
|
||||
if( (pin = uh_path_lookup(cl, req->url)) != NULL )
|
||||
{
|
||||
/* auth ok? */
|
||||
if( uh_auth_check(cl, req, pin) )
|
||||
uh_dispatch_request(cl, req, pin);
|
||||
}
|
||||
|
||||
/* 404 */
|
||||
else
|
||||
{
|
||||
/* Try to invoke an error handler */
|
||||
pin = uh_path_lookup(cl, conf->error_handler);
|
||||
|
||||
if( pin && uh_auth_check(cl, req, pin) )
|
||||
{
|
||||
req->redirect_status = 404;
|
||||
uh_dispatch_request(cl, req, pin);
|
||||
}
|
||||
else
|
||||
{
|
||||
uh_http_sendhf(cl, 404, "Not Found",
|
||||
"No such file or directory");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef HAVE_TLS
|
||||
/* free client tls context */
|
||||
if( conf->tls )
|
||||
conf->tls_close(cl);
|
||||
#endif
|
||||
|
||||
cleanup:
|
||||
|
||||
/* close client socket */
|
||||
close(cur_fd);
|
||||
FD_CLR(cur_fd, &used_fds);
|
||||
|
||||
/* remove from global client list */
|
||||
uh_client_remove(cur_fd);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef HAVE_LUA
|
||||
/* destroy the Lua state */
|
||||
if( conf->lua_state != NULL )
|
||||
conf->lua_close(conf->lua_state);
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
int main (int argc, char **argv)
|
||||
{
|
||||
#ifdef HAVE_LUA
|
||||
/* Lua runtime */
|
||||
lua_State *L = NULL;
|
||||
#endif
|
||||
|
||||
/* master file descriptor list */
|
||||
fd_set used_fds, serv_fds, read_fds;
|
||||
|
||||
/* working structs */
|
||||
struct addrinfo hints;
|
||||
struct http_request *req;
|
||||
struct path_info *pin;
|
||||
struct client *cl;
|
||||
struct sigaction sa;
|
||||
struct config conf;
|
||||
|
||||
|
|
@ -433,7 +616,7 @@ int main (int argc, char **argv)
|
|||
sigset_t ss;
|
||||
|
||||
/* maximum file descriptor number */
|
||||
int new_fd, cur_fd, max_fd = 0;
|
||||
int cur_fd, max_fd = 0;
|
||||
|
||||
#ifdef HAVE_TLS
|
||||
int tls = 0;
|
||||
|
|
@ -525,7 +708,7 @@ int main (int argc, char **argv)
|
|||
#endif
|
||||
|
||||
while( (opt = getopt(argc, argv,
|
||||
"fSDRC:K:E:I:p:s:h:c:l:L:d:r:m:x:t:T:")) > 0
|
||||
"fSDRC:K:E:I:p:s:h:c:l:L:d:r:m:x:i:t:T:")) > 0
|
||||
) {
|
||||
switch(opt)
|
||||
{
|
||||
|
|
@ -658,6 +841,21 @@ int main (int argc, char **argv)
|
|||
case 'x':
|
||||
conf.cgi_prefix = optarg;
|
||||
break;
|
||||
|
||||
/* interpreter */
|
||||
case 'i':
|
||||
if( (optarg[0] == '.') && (port = strchr(optarg, '=')) )
|
||||
{
|
||||
*port++ = 0;
|
||||
uh_interpreter_add(optarg, port);
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf(stderr, "Error: Invalid interpreter: %s\n",
|
||||
optarg);
|
||||
exit(1);
|
||||
}
|
||||
break;
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_LUA
|
||||
|
|
@ -740,6 +938,7 @@ int main (int argc, char **argv)
|
|||
#endif
|
||||
#ifdef HAVE_CGI
|
||||
" -x string URL prefix for CGI handler, default is '/cgi-bin'\n"
|
||||
" -i .ext=path Use interpreter at path for files with the given extension\n"
|
||||
#endif
|
||||
#if defined(HAVE_CGI) || defined(HAVE_LUA)
|
||||
" -t seconds CGI and Lua script timeout in seconds, default is 60\n"
|
||||
|
|
@ -830,7 +1029,7 @@ int main (int argc, char **argv)
|
|||
if( ! conf.lua_prefix )
|
||||
conf.lua_prefix = "/lua";
|
||||
|
||||
L = conf.lua_init(conf.lua_handler);
|
||||
conf.lua_state = conf.lua_init(conf.lua_handler);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
|
@ -865,166 +1064,13 @@ int main (int argc, char **argv)
|
|||
}
|
||||
}
|
||||
|
||||
/* backup server descriptor set */
|
||||
used_fds = serv_fds;
|
||||
|
||||
/* loop */
|
||||
while(run)
|
||||
{
|
||||
/* create a working copy of the used fd set */
|
||||
read_fds = used_fds;
|
||||
|
||||
/* sleep until socket activity */
|
||||
if( select(max_fd + 1, &read_fds, NULL, NULL, NULL) == -1 )
|
||||
{
|
||||
perror("select()");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* run through the existing connections looking for data to be read */
|
||||
for( cur_fd = 0; cur_fd <= max_fd; cur_fd++ )
|
||||
{
|
||||
/* is a socket managed by us */
|
||||
if( FD_ISSET(cur_fd, &read_fds) )
|
||||
{
|
||||
/* is one of our listen sockets */
|
||||
if( FD_ISSET(cur_fd, &serv_fds) )
|
||||
{
|
||||
/* handle new connections */
|
||||
if( (new_fd = accept(cur_fd, NULL, 0)) != -1 )
|
||||
{
|
||||
/* add to global client list */
|
||||
if( (cl = uh_client_add(new_fd, uh_listener_lookup(cur_fd))) != NULL )
|
||||
{
|
||||
#ifdef HAVE_TLS
|
||||
/* setup client tls context */
|
||||
if( conf.tls )
|
||||
conf.tls_accept(cl);
|
||||
#endif
|
||||
|
||||
/* add client socket to global fdset */
|
||||
FD_SET(new_fd, &used_fds);
|
||||
fd_cloexec(new_fd);
|
||||
max_fd = max(max_fd, new_fd);
|
||||
}
|
||||
|
||||
/* insufficient resources */
|
||||
else
|
||||
{
|
||||
fprintf(stderr,
|
||||
"uh_client_add(): Can not manage more than "
|
||||
"%i client sockets, connection dropped\n",
|
||||
UH_LIMIT_CLIENTS
|
||||
);
|
||||
|
||||
close(new_fd);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* is a client socket */
|
||||
else
|
||||
{
|
||||
if( ! (cl = uh_client_lookup(cur_fd)) )
|
||||
{
|
||||
/* this should not happen! */
|
||||
fprintf(stderr,
|
||||
"uh_client_lookup(): No entry for fd %i!\n",
|
||||
cur_fd);
|
||||
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
/* parse message header */
|
||||
if( (req = uh_http_header_recv(cl)) != NULL )
|
||||
{
|
||||
/* RFC1918 filtering required? */
|
||||
if( conf.rfc1918_filter && sa_rfc1918(&cl->peeraddr) &&
|
||||
!sa_rfc1918(&cl->servaddr) )
|
||||
{
|
||||
uh_http_sendhf(cl, 403, "Forbidden",
|
||||
"Rejected request from RFC1918 IP to public server address");
|
||||
}
|
||||
else
|
||||
#ifdef HAVE_LUA
|
||||
/* Lua request? */
|
||||
if( L && uh_path_match(conf.lua_prefix, req->url) )
|
||||
{
|
||||
conf.lua_request(cl, req, L);
|
||||
}
|
||||
else
|
||||
#endif
|
||||
/* dispatch request */
|
||||
if( (pin = uh_path_lookup(cl, req->url)) != NULL )
|
||||
{
|
||||
/* auth ok? */
|
||||
if( uh_auth_check(cl, req, pin) )
|
||||
{
|
||||
#ifdef HAVE_CGI
|
||||
if( uh_path_match(conf.cgi_prefix, pin->name) )
|
||||
{
|
||||
uh_cgi_request(cl, req, pin);
|
||||
}
|
||||
else
|
||||
#endif
|
||||
{
|
||||
uh_file_request(cl, req, pin);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* 404 */
|
||||
else
|
||||
{
|
||||
/* Try to invoke an error handler */
|
||||
pin = uh_path_lookup(cl, conf.error_handler);
|
||||
|
||||
if( pin && uh_auth_check(cl, req, pin) )
|
||||
{
|
||||
req->redirect_status = 404;
|
||||
|
||||
#ifdef HAVE_CGI
|
||||
if( uh_path_match(conf.cgi_prefix, pin->name) )
|
||||
{
|
||||
uh_cgi_request(cl, req, pin);
|
||||
}
|
||||
else
|
||||
#endif
|
||||
{
|
||||
uh_file_request(cl, req, pin);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
uh_http_sendhf(cl, 404, "Not Found",
|
||||
"No such file or directory");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef HAVE_TLS
|
||||
/* free client tls context */
|
||||
if( conf.tls )
|
||||
conf.tls_close(cl);
|
||||
#endif
|
||||
|
||||
cleanup:
|
||||
|
||||
/* close client socket */
|
||||
close(cur_fd);
|
||||
FD_CLR(cur_fd, &used_fds);
|
||||
|
||||
/* remove from global client list */
|
||||
uh_client_remove(cur_fd);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
/* server main loop */
|
||||
uh_mainloop(&conf, serv_fds, max_fd);
|
||||
|
||||
#ifdef HAVE_LUA
|
||||
/* destroy the Lua state */
|
||||
if( L != NULL )
|
||||
conf.lua_close(L);
|
||||
if( conf.lua_state != NULL )
|
||||
conf.lua_close(conf.lua_state);
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
|
|
|
|||
|
|
@ -48,9 +48,7 @@
|
|||
#define UH_LIMIT_MSGHEAD 4096
|
||||
#define UH_LIMIT_HEADERS 64
|
||||
|
||||
#define UH_LIMIT_LISTENERS 16
|
||||
#define UH_LIMIT_CLIENTS 64
|
||||
#define UH_LIMIT_AUTHREALMS 8
|
||||
|
||||
#define UH_HTTP_MSG_GET 0
|
||||
#define UH_HTTP_MSG_HEAD 1
|
||||
|
|
@ -58,6 +56,7 @@
|
|||
|
||||
struct listener;
|
||||
struct client;
|
||||
struct interpreter;
|
||||
struct http_request;
|
||||
|
||||
struct config {
|
||||
|
|
@ -76,6 +75,7 @@ struct config {
|
|||
#ifdef HAVE_LUA
|
||||
char *lua_prefix;
|
||||
char *lua_handler;
|
||||
lua_State *lua_state;
|
||||
lua_State * (*lua_init) (const char *handler);
|
||||
void (*lua_close) (lua_State *L);
|
||||
void (*lua_request) (struct client *cl, struct http_request *req, lua_State *L);
|
||||
|
|
@ -105,6 +105,7 @@ struct listener {
|
|||
#ifdef HAVE_TLS
|
||||
SSL_CTX *tls;
|
||||
#endif
|
||||
struct listener *next;
|
||||
};
|
||||
|
||||
struct client {
|
||||
|
|
@ -117,12 +118,14 @@ struct client {
|
|||
#ifdef HAVE_TLS
|
||||
SSL *tls;
|
||||
#endif
|
||||
struct client *next;
|
||||
};
|
||||
|
||||
struct auth_realm {
|
||||
char path[PATH_MAX];
|
||||
char user[32];
|
||||
char pass[128];
|
||||
struct auth_realm *next;
|
||||
};
|
||||
|
||||
struct http_request {
|
||||
|
|
@ -140,5 +143,13 @@ struct http_response {
|
|||
char *headers[UH_LIMIT_HEADERS];
|
||||
};
|
||||
|
||||
#ifdef HAVE_CGI
|
||||
struct interpreter {
|
||||
char path[PATH_MAX];
|
||||
char extn[32];
|
||||
struct interpreter *next;
|
||||
};
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue