Creating httplib.lua

1 files changed, 83 insertions, 0 deletions

diff --git a/lib/httplib.lua b/lib/httplib.lua
new file mode 100644
index 0000000..0fd7003
--- /dev/null
+++ b/lib/httplib.lua
@@ -0,0 +1,83 @@
+--[[
+
+/*
+ *  Baltisot
+ *  Copyright (C) 1999-2008 Nicolas "Pixel" Noble
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/* $Id: httplib.lua,v 1.1 2008-07-23 16:08:10 pixel Exp $ */
+
+]]--
+
+local session_expire = 60 * 60
+local session_cleanup_throttle = 60 * 10
+local last_cleanup = time()
+
+local sessions = {}
+
+local function generate_new_session()
+    local ticket = GenTicket()
+    sessions[ticket] = {
+        data = {},
+        access = time()
+    }
+end
+
+local function clean_sessions()
+    local t = time()
+    
+    if last_cleanup <= (t - session_cleanup_throttle) then
+        local expired, k, v = t - session_expire
+    
+        for k, v in pairs(sessions) do
+            if v.access <= expired then
+                sessions[k] = nil
+            end
+        end
+        
+        last_cleanup = t
+    end
+end
+
+function get_session(req, res)
+    local sid
+    
+    clean_sessions()
+    
+    if req.headers.Cookie then
+        local cookie_strings = split(req.headers.Cookie, ";")
+        local cookies = {}
+        local k, v
+        
+        for k, v in pairs(cookie_strings) do
+            local cname, cvalue = string.match(v, "(%w+)=(.+)")
+            cookies[cname] = cvalue
+        end
+        sid = cookies.sid
+    end
+    
+    if not sid and not sessions[sid] then
+        sid = generate_new_session()
+    end
+    
+    res.cookies_path = "/"
+    res.cookies = "sid=" .. sid
+    
+    sessions[sid].access = time()
+    
+    return sessions[sid].data, sid
+end