kernel: add md5sum of kernel
[openwrt.git] / package / uhttpd / src / uhttpd-file.c
index 850a141..fda86d7 100644 (file)
@@ -97,39 +97,40 @@ static char * uh_file_header_lookup(struct http_request *req, const char *name)
        return NULL;
 }
 
        return NULL;
 }
 
-static void uh_file_response_ok_hdrs(struct client *cl, struct http_request *req, struct stat *s)
+
+static int uh_file_response_ok_hdrs(struct client *cl, struct http_request *req, struct stat *s)
 {
 {
-       uh_http_sendf(cl, NULL, "Connection: close\r\n");
+       ensure_ret(uh_http_sendf(cl, NULL, "Connection: close\r\n"));
 
        if( s )
        {
 
        if( s )
        {
-               uh_http_sendf(cl, NULL, "ETag: %s\r\n", uh_file_mktag(s));
-               uh_http_sendf(cl, NULL, "Last-Modified: %s\r\n", uh_file_unix2date(s->st_mtime));
+               ensure_ret(uh_http_sendf(cl, NULL, "ETag: %s\r\n", uh_file_mktag(s)));
+               ensure_ret(uh_http_sendf(cl, NULL, "Last-Modified: %s\r\n", uh_file_unix2date(s->st_mtime)));
        }
 
        }
 
-       uh_http_sendf(cl, NULL, "Date: %s\r\n", uh_file_unix2date(time(NULL)));
+       return uh_http_sendf(cl, NULL, "Date: %s\r\n", uh_file_unix2date(time(NULL)));
 }
 
 }
 
-static void uh_file_response_200(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_response_200(struct client *cl, struct http_request *req, struct stat *s)
 {
 {
-       uh_http_sendf(cl, NULL, "HTTP/%.1f 200 OK\r\n", req->version);
-       uh_file_response_ok_hdrs(cl, req, s);
+       ensure_ret(uh_http_sendf(cl, NULL, "HTTP/%.1f 200 OK\r\n", req->version));
+       return uh_file_response_ok_hdrs(cl, req, s);
 }
 
 }
 
-static void uh_file_response_304(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_response_304(struct client *cl, struct http_request *req, struct stat *s)
 {
 {
-       uh_http_sendf(cl, NULL, "HTTP/%.1f 304 Not Modified\r\n", req->version);
-       uh_file_response_ok_hdrs(cl, req, s);
+       ensure_ret(uh_http_sendf(cl, NULL, "HTTP/%.1f 304 Not Modified\r\n", req->version));
+       return uh_file_response_ok_hdrs(cl, req, s);
 }
 
 }
 
-static void uh_file_response_412(struct client *cl, struct http_request *req)
+static int uh_file_response_412(struct client *cl, struct http_request *req)
 {
 {
-       uh_http_sendf(cl, NULL,
+       return uh_http_sendf(cl, NULL,
                "HTTP/%.1f 412 Precondition Failed\r\n"
                "Connection: close\r\n", req->version);
 }
 
                "HTTP/%.1f 412 Precondition Failed\r\n"
                "Connection: close\r\n", req->version);
 }
 
-static int uh_file_if_match(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_match(struct client *cl, struct http_request *req, struct stat *s, int *ok)
 {
        const char *tag = uh_file_mktag(s);
        char *hdr = uh_file_header_lookup(req, "If-Match");
 {
        const char *tag = uh_file_mktag(s);
        char *hdr = uh_file_header_lookup(req, "If-Match");
@@ -149,43 +150,44 @@ static int uh_file_if_match(struct client *cl, struct http_request *req, struct
                        }
                        else if( !strcmp(p, "*") || !strcmp(p, tag) )
                        {
                        }
                        else if( !strcmp(p, "*") || !strcmp(p, tag) )
                        {
-                               return 1;
+                               *ok = 1;
+                               return *ok;
                        }
                }
 
                        }
                }
 
-               uh_file_response_412(cl, req);
-               return 0;
+               *ok = 0;
+               ensure_ret(uh_file_response_412(cl, req));
+               return *ok;
        }
 
        }
 
-       return 1;
+       *ok = 1;
+       return *ok;
 }
 
 }
 
-static int uh_file_if_modified_since(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_modified_since(struct client *cl, struct http_request *req, struct stat *s, int *ok)
 {
        char *hdr = uh_file_header_lookup(req, "If-Modified-Since");
 {
        char *hdr = uh_file_header_lookup(req, "If-Modified-Since");
+       *ok = 1;
 
        if( hdr )
        {
 
        if( hdr )
        {
-               if( uh_file_date2unix(hdr) < s->st_mtime )
+               if( uh_file_date2unix(hdr) >= s->st_mtime )
                {
                {
-                       return 1;
-               }
-               else
-               {
-                       uh_file_response_304(cl, req, s);
-                       return 0;
+                       *ok = 0;
+                       ensure_ret(uh_file_response_304(cl, req, s));
                }
        }
 
                }
        }
 
-       return 1;
+       return *ok;
 }
 
 }
 
-static int uh_file_if_none_match(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_none_match(struct client *cl, struct http_request *req, struct stat *s, int *ok)
 {
        const char *tag = uh_file_mktag(s);
        char *hdr = uh_file_header_lookup(req, "If-None-Match");
        char *p;
        int i;
 {
        const char *tag = uh_file_mktag(s);
        char *hdr = uh_file_header_lookup(req, "If-None-Match");
        char *p;
        int i;
+       *ok = 1;
 
        if( hdr )
        {
 
        if( hdr )
        {
@@ -200,47 +202,51 @@ static int uh_file_if_none_match(struct client *cl, struct http_request *req, st
                        }
                        else if( !strcmp(p, "*") || !strcmp(p, tag) )
                        {
                        }
                        else if( !strcmp(p, "*") || !strcmp(p, tag) )
                        {
+                               *ok = 0;
+
                                if( (req->method == UH_HTTP_MSG_GET) ||
                                    (req->method == UH_HTTP_MSG_HEAD) )
                                if( (req->method == UH_HTTP_MSG_GET) ||
                                    (req->method == UH_HTTP_MSG_HEAD) )
-                                       uh_file_response_304(cl, req, s);
+                                       ensure_ret(uh_file_response_304(cl, req, s));
                                else
                                else
-                                       uh_file_response_412(cl, req);
+                                       ensure_ret(uh_file_response_412(cl, req));
 
 
-                               return 0;
+                               break;
                        }
                }
        }
 
                        }
                }
        }
 
-       return 1;
+       return *ok;
 }
 
 }
 
-static int uh_file_if_range(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_range(struct client *cl, struct http_request *req, struct stat *s, int *ok)
 {
        char *hdr = uh_file_header_lookup(req, "If-Range");
 {
        char *hdr = uh_file_header_lookup(req, "If-Range");
+       *ok = 1;
 
        if( hdr )
        {
 
        if( hdr )
        {
-               uh_file_response_412(cl, req);
-               return 0;
+               *ok = 0;
+               ensure_ret(uh_file_response_412(cl, req));
        }
 
        }
 
-       return 1;
+       return *ok;
 }
 
 }
 
-static int uh_file_if_unmodified_since(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_unmodified_since(struct client *cl, struct http_request *req, struct stat *s, int *ok)
 {
        char *hdr = uh_file_header_lookup(req, "If-Unmodified-Since");
 {
        char *hdr = uh_file_header_lookup(req, "If-Unmodified-Since");
+       *ok = 1;
 
        if( hdr )
        {
                if( uh_file_date2unix(hdr) <= s->st_mtime )
                {
 
        if( hdr )
        {
                if( uh_file_date2unix(hdr) <= s->st_mtime )
                {
-                       uh_file_response_412(cl, req);
-                       return 0;
+                       *ok = 0;
+                       ensure_ret(uh_file_response_412(cl, req));
                }
        }
 
                }
        }
 
-       return 1;
+       return *ok;
 }
 
 
 }
 
 
@@ -251,17 +257,18 @@ static int uh_file_scandir_filter_dir(const struct dirent *e)
 
 static void uh_file_dirlist(struct client *cl, struct http_request *req, struct path_info *pi)
 {
 
 static void uh_file_dirlist(struct client *cl, struct http_request *req, struct path_info *pi)
 {
-       int i, count;
+       int i;
+       int count = 0;
        char filename[PATH_MAX];
        char *pathptr;
        struct dirent **files = NULL;
        struct stat s;
 
        char filename[PATH_MAX];
        char *pathptr;
        struct dirent **files = NULL;
        struct stat s;
 
-       uh_http_sendf(cl, req,
+       ensure_out(uh_http_sendf(cl, req,
                "<html><head><title>Index of %s</title></head>"
                "<body><h1>Index of %s</h1><hr /><ol>",
                        pi->name, pi->name
                "<html><head><title>Index of %s</title></head>"
                "<body><h1>Index of %s</h1><hr /><ol>",
                        pi->name, pi->name
-       );
+       ));
 
        if( (count = scandir(pi->phys, &files, uh_file_scandir_filter_dir, alphasort)) > 0 )
        {
 
        if( (count = scandir(pi->phys, &files, uh_file_scandir_filter_dir, alphasort)) > 0 )
        {
@@ -278,13 +285,13 @@ static void uh_file_dirlist(struct client *cl, struct http_request *req, struct
                        if( !stat(filename, &s) &&
                            (s.st_mode & S_IFDIR) && (s.st_mode & S_IXOTH)
                        )
                        if( !stat(filename, &s) &&
                            (s.st_mode & S_IFDIR) && (s.st_mode & S_IXOTH)
                        )
-                               uh_http_sendf(cl, req,
+                               ensure_out(uh_http_sendf(cl, req,
                                        "<li><strong><a href='%s%s'>%s</a>/</strong><br />"
                                        "<small>modified: %s<br />directory - %.02f kbyte"
                                        "<br /><br /></small></li>",
                                                pi->name, files[i]->d_name, files[i]->d_name,
                                                uh_file_unix2date(s.st_mtime), s.st_size / 1024.0
                                        "<li><strong><a href='%s%s'>%s</a>/</strong><br />"
                                        "<small>modified: %s<br />directory - %.02f kbyte"
                                        "<br /><br /></small></li>",
                                                pi->name, files[i]->d_name, files[i]->d_name,
                                                uh_file_unix2date(s.st_mtime), s.st_size / 1024.0
-                               );
+                               ));
 
                        *pathptr = 0;
                }
 
                        *pathptr = 0;
                }
@@ -298,90 +305,94 @@ static void uh_file_dirlist(struct client *cl, struct http_request *req, struct
                        if( !stat(filename, &s) &&
                            !(s.st_mode & S_IFDIR) && (s.st_mode & S_IROTH)
                        )
                        if( !stat(filename, &s) &&
                            !(s.st_mode & S_IFDIR) && (s.st_mode & S_IROTH)
                        )
-                               uh_http_sendf(cl, req,
+                               ensure_out(uh_http_sendf(cl, req,
                                        "<li><strong><a href='%s%s'>%s</a></strong><br />"
                                        "<small>modified: %s<br />%s - %.02f kbyte<br />"
                                        "<br /></small></li>",
                                                pi->name, files[i]->d_name, files[i]->d_name,
                                                uh_file_unix2date(s.st_mtime),
                                                uh_file_mime_lookup(filename), s.st_size / 1024.0
                                        "<li><strong><a href='%s%s'>%s</a></strong><br />"
                                        "<small>modified: %s<br />%s - %.02f kbyte<br />"
                                        "<br /></small></li>",
                                                pi->name, files[i]->d_name, files[i]->d_name,
                                                uh_file_unix2date(s.st_mtime),
                                                uh_file_mime_lookup(filename), s.st_size / 1024.0
-                               );
+                               ));
 
                        *pathptr = 0;
 
                        *pathptr = 0;
-                       free(files[i]);
                }
        }
 
                }
        }
 
-       free(files);
+       ensure_out(uh_http_sendf(cl, req, "</ol><hr /></body></html>"));
+       ensure_out(uh_http_sendf(cl, req, ""));
 
 
-       uh_http_sendf(cl, req, "</ol><hr /></body></html>");
-       uh_http_sendf(cl, req, "");
+out:
+       if( files )
+       {
+               for( i = 0; i < count; i++ )
+                       free(files[i]);
+
+               free(files);
+       }
 }
 
 
 void uh_file_request(struct client *cl, struct http_request *req, struct path_info *pi)
 {
 }
 
 
 void uh_file_request(struct client *cl, struct http_request *req, struct path_info *pi)
 {
-       int fd, rlen;
+       int rlen;
+       int ok = 1;
+       int fd = -1;
        char buf[UH_LIMIT_MSGHEAD];
 
        /* we have a file */
        if( (pi->stat.st_mode & S_IFREG) && ((fd = open(pi->phys, O_RDONLY)) > 0) )
        {
                /* test preconditions */
        char buf[UH_LIMIT_MSGHEAD];
 
        /* we have a file */
        if( (pi->stat.st_mode & S_IFREG) && ((fd = open(pi->phys, O_RDONLY)) > 0) )
        {
                /* test preconditions */
-               if(
-                       uh_file_if_modified_since(cl, req, &pi->stat)   &&
-                       uh_file_if_match(cl, req, &pi->stat)            &&
-                       uh_file_if_range(cl, req, &pi->stat)            &&
-                       uh_file_if_unmodified_since(cl, req, &pi->stat) &&
-                       uh_file_if_none_match(cl, req, &pi->stat)
-               ) {
+               if(ok) ensure_out(uh_file_if_modified_since(cl, req, &pi->stat, &ok));
+               if(ok) ensure_out(uh_file_if_match(cl, req, &pi->stat, &ok));
+               if(ok) ensure_out(uh_file_if_range(cl, req, &pi->stat, &ok));
+               if(ok) ensure_out(uh_file_if_unmodified_since(cl, req, &pi->stat, &ok));
+               if(ok) ensure_out(uh_file_if_none_match(cl, req, &pi->stat, &ok));
+
+               if( ok > 0 )
+               {
                        /* write status */
                        /* write status */
-                       uh_file_response_200(cl, req, &pi->stat);
+                       ensure_out(uh_file_response_200(cl, req, &pi->stat));
 
 
-                       uh_http_sendf(cl, NULL, "Content-Type: %s\r\n", uh_file_mime_lookup(pi->name));
-                       uh_http_sendf(cl, NULL, "Content-Length: %i\r\n", pi->stat.st_size);
+                       ensure_out(uh_http_sendf(cl, NULL, "Content-Type: %s\r\n", uh_file_mime_lookup(pi->name)));
+                       ensure_out(uh_http_sendf(cl, NULL, "Content-Length: %i\r\n", pi->stat.st_size));
 
                        /* if request was HTTP 1.1 we'll respond chunked */
                        if( (req->version > 1.0) && (req->method != UH_HTTP_MSG_HEAD) )
 
                        /* if request was HTTP 1.1 we'll respond chunked */
                        if( (req->version > 1.0) && (req->method != UH_HTTP_MSG_HEAD) )
-                               uh_http_send(cl, NULL, "Transfer-Encoding: chunked\r\n", -1);
+                               ensure_out(uh_http_send(cl, NULL, "Transfer-Encoding: chunked\r\n", -1));
 
                        /* close header */
 
                        /* close header */
-                       uh_http_send(cl, NULL, "\r\n", -1);
+                       ensure_out(uh_http_send(cl, NULL, "\r\n", -1));
 
                        /* send body */
                        if( req->method != UH_HTTP_MSG_HEAD )
                        {
                                /* pump file data */
                                while( (rlen = read(fd, buf, sizeof(buf))) > 0 )
 
                        /* send body */
                        if( req->method != UH_HTTP_MSG_HEAD )
                        {
                                /* pump file data */
                                while( (rlen = read(fd, buf, sizeof(buf))) > 0 )
-                               {
-                                       if( uh_http_send(cl, req, buf, rlen) < 0 )
-                                               break;
-                               }
+                                       ensure_out(uh_http_send(cl, req, buf, rlen));
 
                                /* send trailer in chunked mode */
 
                                /* send trailer in chunked mode */
-                               uh_http_send(cl, req, "", 0);
+                               ensure_out(uh_http_send(cl, req, "", 0));
                        }
                }
 
                /* one of the preconditions failed, terminate opened header and exit */
                else
                {
                        }
                }
 
                /* one of the preconditions failed, terminate opened header and exit */
                else
                {
-                       uh_http_send(cl, NULL, "\r\n", -1);
+                       ensure_out(uh_http_send(cl, NULL, "\r\n", -1));
                }
                }
-
-               close(fd);
        }
 
        /* directory */
        else if( (pi->stat.st_mode & S_IFDIR) && !cl->server->conf->no_dirlists )
        {
                /* write status */
        }
 
        /* directory */
        else if( (pi->stat.st_mode & S_IFDIR) && !cl->server->conf->no_dirlists )
        {
                /* write status */
-               uh_file_response_200(cl, req, NULL);
+               ensure_out(uh_file_response_200(cl, req, NULL));
 
                if( req->version > 1.0 )
 
                if( req->version > 1.0 )
-                       uh_http_send(cl, NULL, "Transfer-Encoding: chunked\r\n", -1);
+                       ensure_out(uh_http_send(cl, NULL, "Transfer-Encoding: chunked\r\n", -1));
 
 
-               uh_http_send(cl, NULL, "Content-Type: text/html\r\n\r\n", -1);
+               ensure_out(uh_http_send(cl, NULL, "Content-Type: text/html\r\n\r\n", -1));
 
                /* content */
                uh_file_dirlist(cl, req, pi);
 
                /* content */
                uh_file_dirlist(cl, req, pi);
@@ -390,8 +401,12 @@ void uh_file_request(struct client *cl, struct http_request *req, struct path_in
        /* 403 */
        else
        {
        /* 403 */
        else
        {
-               uh_http_sendhf(cl, 403, "Forbidden",
-                       "Access to this resource is forbidden");
+               ensure_out(uh_http_sendhf(cl, 403, "Forbidden",
+                       "Access to this resource is forbidden"));
        }
        }
+
+out:
+       if( fd > -1 )
+               close(fd);
 }
 
 }
 
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