Merge 0.10->trunk

[prosody.git] / plugins / mod_http_files.lua

diff --git a/plugins/mod_http_files.lua b/plugins/mod_http_files.lua
index 3b60249559c6e7e42bee94699d0f14ba122f7c4b..ab2f3966f859a3745ae517d415c18d4390189713 100644 (file)
--- a/plugins/mod_http_files.lua
+++ b/plugins/mod_http_files.lua
@@ -17,6 +17,8 @@ local build_path = require"socket.url".build_path;
 local path_sep = package.config:sub(1,1);
 
 local base_path = module:get_option_string("http_files_dir", module:get_option_string("http_path"));
+local cache_size = module:get_option_number("http_files_cache_size", 128);
+local cache_max_file_size = module:get_option_number("http_files_cache_max_file_size", 4096);
 local dir_indices = module:get_option("http_index_files", { "index.html", "index.htm" });
 local directory_index = module:get_option_boolean("http_dir_listing");
 
@@ -81,7 +83,7 @@ function sanitize_path(path)
        return "/"..table.concat(out, "/");
 end
 
-local cache = setmetatable({}, { __mode = "kv" }); -- Let the garbage collector have it if it wants to.
+local cache = require "util.cache".new(cache_size);
 
 function serve(opts)
        if type(opts) ~= "table" then -- assume path string
@@ -109,7 +111,7 @@ function serve(opts)
                local last_modified = os_date('!%a, %d %b %Y %H:%M:%S GMT', attr.modification);
                response_headers.last_modified = last_modified;
 
-               local etag = ("%02x-%x-%x-%x"):format(attr.dev or 0, attr.ino or 0, attr.size or 0, attr.modification or 0);
+               local etag = ('"%02x-%x-%x-%x"'):format(attr.dev or 0, attr.ino or 0, attr.size or 0, attr.modification or 0);
                response_headers.etag = etag;
 
                local if_none_match = request_headers.if_none_match
@@ -119,7 +121,7 @@ function serve(opts)
                        return 304;
                end
 
-               local data = cache[orig_path];
+               local data = cache:get(orig_path);
                if data and data.etag == etag then
                        response_headers.content_type = data.content_type;
                        data = data.data;
@@ -147,18 +149,22 @@ function serve(opts)
 
                else
                        local f, err = open(full_path, "rb");
-                       if f then
-                               data, err = f:read("*a");
-                               f:close();
-                       end
-                       if not data then
-                               module:log("debug", "Could not open or read %s. Error was %s", full_path, err);
+                       if not f then
+                               module:log("debug", "Could not open %s. Error was %s", full_path, err);
                                return 403;
                        end
                        local ext = full_path:match("%.([^./]+)$");
                        local content_type = ext and mime_map[ext];
-                       cache[orig_path] = { data = data; content_type = content_type; etag = etag };
                        response_headers.content_type = content_type;
+                       if attr.size > cache_max_file_size then
+                               response_headers.content_length = attr.size;
+                               module:log("debug", "%d > cache_max_file_size", attr.size);
+                               return response:send_file(f);
+                       else
+                               data = f:read("*a");
+                               f:close();
+                       end
+                       cache:set(orig_path, { data = data; content_type = content_type; etag = etag });
                end
 
                return response:send(data);