class Gravatar
Public Class Methods
construct_resource(email_address, size, default)
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Construct the Gravatar
URI generically
# File lib/rb-gravatar.rb, line 6 def self.construct_resource(email_address, size, default) if size < 1 || size > 2048 size = 64 end parts = [] parts << "//www.gravatar.com/avatar/" parts << Digest::MD5.hexdigest(email_address.downcase.strip) parts << "?s=" parts << size if !default.nil? parts << "&d=" parts << CGI.escape(default) end parts.join end
prefetch_dns()
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Output the DNS preload tags
# File lib/rb-gravatar.rb, line 40 def self.prefetch_dns '<link rel="dns-prefetch" href="//gravatar.com">' end
src(email_address, size = 64, default = nil)
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Generate and return only the Gravatar
URI
# File lib/rb-gravatar.rb, line 26 def self.src(email_address, size = 64, default = nil) begin Gravatar.construct_resource(email_address, size, default) rescue Exception => e nil end end
tag(email_address, size = 64, default = nil, alt_text = nil)
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Generate and return the full img tag for the Gravatar
URI
# File lib/rb-gravatar.rb, line 35 def self.tag(email_address, size = 64, default = nil, alt_text = nil) return "<img src='#{Gravatar.construct_resource(email_address, size, default)}' class='gravatar' alt='#{alt_text}' />" end