prosody
bf34f1ee08ee
plugins/mod_http_files.lua

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plugins/mod_http_files.lua @ 5255:bf34f1ee08ee

mod_http_files: Only serve cached data if etag is unchanged.
author Kim Alvefur <zash@zash.se>
date Fri, 21 Dec 2012 08:25:09 +0100
parent 5254:df3552822054
child 5256:a77c6eba461e
comparison
equal deleted inserted replaced
5254:df3552822054 5255:bf34f1ee08ee
71 or last_modified == if_modified_since then 71 or last_modified == if_modified_since then
72 return 304; 72 return 304;
73 end 73 end
74 74
75 local data = cache[path]; 75 local data = cache[path];
76 if data then 76 if data and data.etag == etag then
77 response_headers.content_type = data.content_type; 77 response_headers.content_type = data.content_type;
78 data = data.data; 78 data = data.data;
79 elseif attr.mode == "directory" then 79 elseif attr.mode == "directory" then
80 if full_path:sub(-1) ~= "/" then 80 if full_path:sub(-1) ~= "/" then
81 response_headers.location = orig_path.."/"; 81 response_headers.location = orig_path.."/";
103 :tag("a", { href = file }):text(file) 103 :tag("a", { href = file }):text(file)
104 :up():up(); 104 :up():up();
105 end 105 end
106 end 106 end
107 data = "<!DOCTYPE html>\n"..tostring(html); 107 data = "<!DOCTYPE html>\n"..tostring(html);
108 cache[path] = { data = data, content_type = mime_map.html; hits = 0 }; 108 cache[path] = { data = data, content_type = mime_map.html; etag = etag; };
109 response_headers.content_type = mime_map.html; 109 response_headers.content_type = mime_map.html;
110 end 110 end
111 111
112 else 112 else
113 local f, err = open(full_path, "rb"); 113 local f, err = open(full_path, "rb");
118 if not data then 118 if not data then
119 return 403; 119 return 403;
120 end 120 end
121 local ext = path:match("%.([^./]+)$"); 121 local ext = path:match("%.([^./]+)$");
122 local content_type = ext and mime_map[ext]; 122 local content_type = ext and mime_map[ext];
123 cache[path] = { data = data; content_type = content_type; }; 123 cache[path] = { data = data; content_type = content_type; etag = etag };
124 response_headers.content_type = content_type; 124 response_headers.content_type = content_type;
125 end 125 end
126 126
127 return response:send(data); 127 return response:send(data);
128 end 128 end