cpt

A simple slider captcha implementation in Go

Features

• Gzip compression embedded

Functions

• SetTokenExpiration Set token expiration
• SetTokenClearJobExecTick Set token clear job ticker durtion
• SetTokenDeviation Set token deviation in px
• SetTokenLength Set token generate length
• SetResLoaderDefaultOpts Set default res loader opts
• Generate Generate the image token in base64
• Verify Verify the image token & xs
• Delete Delete the image token
• WrappedGenerateHandlerFunc Get the wrapped generate handler func
• WrappedVerifyHandlerFunc Get the wrapped verify handler func
• Serve Serve embedded http server
• ServeRoute Serve embedded http server with custom routers

Embedded Routers

• GET: /cpt/generate The Generate function called

response

{
    "bg_image_base_64": "data:image/png;base64,i",
    "bc_image_base_64": "data:image/png;base64,i",
    "token": "E4kAu5A2gjoXY7CfCw"
}

• GET: /cpt/generate?html The Generate function called, rendering html

• GET: /cpt/verify The Verify function called

query parameters

?token=
?x=

response error

{"err":"captcha_err"}

response verified

{"verified":"ok"}

TODO

• resloader_file Load resources from local file system
• resloader_uri Load resources from url address