From 158b3b4f47a040430d42055cd23ba5289c77ece2 Mon Sep 17 00:00:00 2001
From: ruki <waruqi@gmail.com>
Date: Wed, 24 Jun 2020 22:51:00 +0800
Subject: support proxy pac file

---
 xmake/modules/net/proxy.lua | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

(limited to 'xmake/modules/net/proxy.lua')

diff --git a/xmake/modules/net/proxy.lua b/xmake/modules/net/proxy.lua
index 0c7d308cb..e0bd7d246 100644
--- a/xmake/modules/net/proxy.lua
+++ b/xmake/modules/net/proxy.lua
@@ -34,6 +34,28 @@ function _proxy_hosts()
     return proxy_hosts or nil
 end
 
+-- get proxy pac file
+function _proxy_pac()
+    local proxy_pac = _g._PROXY_PAC
+    if proxy_pac == nil then
+        local pac = global.get("proxy_pac")
+        local pacfile
+        if pac and pac:endswith(".lua") then
+            if os.isfile(pac) then
+                pacfile = pac
+            end
+            if not pacfile and not path.is_absolute(pac) then
+                pacfile = path.join(global.directory(), pac)
+            end
+        end
+        if pacfile and os.isfile(pacfile) then
+            proxy_pac = import(path.basename(pacfile), {rootdir = path.directory(pacfile), try = true, anonymous = true})
+        end
+        _g._PROXY_PAC = proxy_pac or false
+    end
+    return proxy_pac or nil
+end
+
 -- convert host pattern to a lua pattern
 function _host_pattern(pattern)
     pattern = pattern:gsub("([%+%.%-%^%$%(%)%%])", "%%%1")
@@ -44,7 +66,11 @@ end
 
 -- get proxy configuration from the given url, [protocol://]host[:port]
 function get(url)
+
+    -- enable proxy for the given url and configuration pattern
     if url then
+
+        -- get proxy from the given hosts pattern
         local host = url:match("://(.-)/") or url:match("@(.-):")
         local proxy_hosts = _proxy_hosts()
         if host and proxy_hosts then
@@ -56,7 +82,15 @@ function get(url)
                 end
             end
         end
+
+        -- get proxy from the pac file
+        local proxy_pac = _proxy_pac()
+        if proxy_pac and proxy_pac(url, host) then
+            return global.get("proxy")
+        end
         return
     end
+
+    -- enable global proxy
     return global.get("proxy")
 end
-- 
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