ed

resources/[tools]/bl_idcard/server/decoder.lua

@@ -0,0 +1,29 @@
+local b = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+local resourcePath = GetResourcePath(cache.resource)
+local imagePath = '/web/mugshots'
+
+local function base64Decode(data)
+    data = data:gsub('[^'..b..'=]', '')
+    return (data:gsub('.', function(x)
+        if x == '=' then return '' end
+        local r, f = '', (b:find(x) - 1)
+        for i = 6, 1, -1 do r = r .. (f % 2^i - f % 2^(i-1) > 0 and '1' or '0') end
+        return r
+    end):gsub('%d%d%d%d%d%d%d%d', function(x)
+        return string.char(tonumber(x, 2))
+    end))
+end
+
+local function saveBase64AsPng(base64String, imageName)
+    local updatedPath = resourcePath:match("resources/.*")
+    local base64Data = base64String:gsub("^data:image/png;base64,", "")
+    local decodedData = base64Decode(base64Data)
+    local file = io.open(('%s/%s/%s.png'):format(updatedPath, imagePath, imageName), "wb")
+    if file then
+        file:write(decodedData)
+        file:close()
+        return true
+    end
+end
+
+return saveBase64AsPng