95 lines
2.8 KiB
Ruby
95 lines
2.8 KiB
Ruby
class Utils
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RECORDING_SRC_PREFIX = 'rec_'
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RECORDING_SOURCES = ["#{RECORDING_SRC_PREFIX}youtube", "#{RECORDING_SRC_PREFIX}soundcloud"]
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USERNAME_SITES = %W{youtube facebook soundcloud bandcamp fandalism twitter reverbnation}
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SITE_TYPES = ['url'].concat(USERNAME_SITES).concat(RECORDING_SOURCES)
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USER_AGENT = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2227.1 Safari/537.36"
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def self.recording_source?(site)
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RECORDING_SOURCES.include?(site)
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end
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def self.extract_recording_id(site, recording_url)
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recording_url.strip!
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case site
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when 'rec_youtube'
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# regex derived from: https://gist.github.com/afeld/1254889
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if recording_url =~ /(youtu.be\/|youtube.com\/(watch\?(.*&)?v=|(embed|v)\/))([^\?&\"\'>]+)/
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return $5
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end
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when 'rec_soundcloud'
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if recording_url =~ /^https?:\/\/.*soundcloud.com\/.+/
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tmpfile = Tempfile.new(site)
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tmpfile.close
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curl_args = "-A '#{USER_AGENT}' -L --output #{tmpfile.path} --fail --show-error "
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`curl #{curl_args} '#{recording_url}' 2>&1`
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result = File.read(tmpfile.path)
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File.delete(tmpfile.path)
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if result =~ /"soundcloud:\/\/sounds:(\d+)"/
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return $1
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end
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end
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end
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nil
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end
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def self.username_url(username, site)
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case site
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when 'youtube'
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"https://www.youtube.com/c/#{username}"
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when 'facebook'
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"https://www.facebook.com/#{username}"
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when 'soundcloud'
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"https://soundcloud.com/#{username}"
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when 'bandcamp'
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"http://#{username}.bandcamp.com"
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when 'bandcamp-fan'
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"http://bandcamp.com/#{username}"
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when 'fandalism'
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"http://fandalism.com/#{username}"
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when 'twitter'
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"https://twitter.com/#{username}"
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when 'reverbnation'
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"http://www.reverbnation.com/#{username}"
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else
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nil
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end
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end
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def self.site_validator(url, site=nil)
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curl_args = "-A '#{USER_AGENT}' --silent --head --fail --show-error "
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case site
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when 'bandcamp'
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cmd = "curl #{curl_args} '#{url}' 2>&1"
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result = `#{cmd}`.chomp
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if $?.success?
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if /^HTTP\/\d+\.\d+ 2\d\d OK/ =~ result.lines[0]
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return nil
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else
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if /http:\/\/(.*)\.bandcamp.com/ =~ url
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return self.site_validator(self.username_url($1, 'bandcamp-fan'), 'bandcamp-fan')
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end
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return "Unrecognized url (#{url})"
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end
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else
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result =~ /curl: \(\d+\) (.*)/
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return "#{$1} (#{url})"
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end
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else
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curl_args << "-L --output /dev/null "
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cmd = "curl #{curl_args} '#{url}' 2>&1"
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result = `#{cmd}`.chomp
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end
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if $?.success?
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return nil
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else
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result =~ /curl: \(\d+\) (.*)/
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return "#{$1} (#{url})"
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end
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end
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end
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