method

valid_message?

v5.0.0.1 - Show latest stable - 0 notes - Class: ActiveSupport::MessageVerifier

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What's this?

valid_message?(signed_message) public

Checks if a signed message could have been generated by signing an object with the MessageVerifier's secret.

verifier = ActiveSupport::MessageVerifier.new 's3Krit'
signed_message = verifier.generate 'a private message'
verifier.valid_message?(signed_message) # => true

tampered_message = signed_message.chop # editing the message invalidates the signature
verifier.valid_message?(tampered_message) # => false

Show source

# File activesupport/lib/active_support/message_verifier.rb, line 52
    def valid_message?(signed_message)
      return if signed_message.nil? || !signed_message.valid_encoding? || signed_message.blank?

      data, digest = signed_message.split("--".freeze)
      data.present? && digest.present? && ActiveSupport::SecurityUtils.secure_compare(digest, generate_digest(data))
    end

valid_message?

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