1 files changed, 54 insertions, 0 deletions
diff --git a/server/src/uri.lua b/server/src/uri.lua
new file mode 100644
index 00000000..b41bc1db
--- /dev/null
+++ b/server/src/uri.lua
@@ -0,0 +1,54 @@
+local fs = require 'bee.filesystem'
+
+local function decode(uri)
+    -- Unix-like系统根是/
+    if uri:sub(1, 9) == 'file:////' then
+        return fs.path(uri:sub(9))
+    end
+    if uri:sub(1, 8) ~= 'file:///' then
+        log.error('uri decode failed: ', uri)
+        return nil
+    end
+    local names = {}
+    for name in uri:sub(9):gmatch '[^%/]+' do
+        names[#names+1] = name:gsub('%%([0-9a-fA-F][0-9a-fA-F])', function (hex)
+            return string.char(tonumber(hex, 16))
+        end)
+    end
+    if #names == 0 then
+        log.error('uri decode failed: ', uri)
+        return nil
+    end
+    -- 盘符后面加个斜杠
+    local path = fs.path(names[1] .. '\\')
+    for i = 2, #names do
+        path = path / names[i]
+    end
+    return fs.absolute(path)
+end
+
+local function encode(path)
+    local names = {}
+    local cur = fs.absolute(path)
+    while true do
+        local name = cur:filename():string()
+        if name == '' then
+            -- 盘符，去掉一个斜杠
+            name = cur:string():sub(1, -2)
+        end
+        name = name:gsub([=[[^%w%-%_%.%~]]=], function (char)
+            return ('%%%02X'):format(string.byte(char))
+        end)
+        table.insert(names, 1, name)
+        if cur == cur:parent_path() then
+            break
+        end
+        cur = cur:parent_path()
+    end
+    return 'file:///' .. table.concat(names, '/')
+end
+
+return {
+    encode = encode,
+    decode = decode,
+}