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Diffstat (limited to 'actionmailer/lib/action_mailer/quoting.rb')
| -rw-r--r-- | actionmailer/lib/action_mailer/quoting.rb | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/actionmailer/lib/action_mailer/quoting.rb b/actionmailer/lib/action_mailer/quoting.rb new file mode 100644 index 0000000000..28c456f25d --- /dev/null +++ b/actionmailer/lib/action_mailer/quoting.rb @@ -0,0 +1,102 @@ +module ActionMailer + module Quoting + + # Convert the given text into quoted printable format, with an instruction + # that the text be eventually interpreted in the given charset. + def quoted_printable(text, charset) + text = text.gsub( /[^a-z ]/i ) { "=%02x" % $&[0] }.gsub( / /, "_" ) + "=?#{charset}?Q?#{text}?=" + end + + # A quick-and-dirty regexp for determining whether a string contains any + # characters that need escaping. + CHARS_NEEDING_QUOTING = /[\000-\011\013\014\016-\037\177-\377]/ + + # Quote the given text if it contains any "illegal" characters + def quote_if_necessary(text, charset) + (text =~ CHARS_NEEDING_QUOTING) ? + quoted_printable(text, charset) : + text + end + + # Quote any of the given strings if they contain any "illegal" characters + def quote_any_if_necessary(charset, *args) + args.map { |v| quote_if_necessary(v, charset) } + end + + # Quote the given address if it needs to be. The address may be a + # regular email address, or it can be a phrase followed by an address in + # brackets. The phrase is the only part that will be quoted, and only if + # it needs to be. This allows extended characters to be used in the + # "to", "from", "cc", and "bcc" headers. + def quote_address_if_necessary(address, charset) + if Array === address + address.map { |a| quote_address_if_necessary(a, charset) } + elsif address =~ /^(\S.*)\s+(<.*>)$/ + address = $2 + phrase = quote_if_necessary($1.gsub(/^['"](.*)['"]$/, '\1'), charset) + "\"#{phrase}\" #{address}" + else + address + end + end + + # Quote any of the given addresses, if they need to be. + def quote_any_address_if_necessary(charset, *args) + args.map { |v| quote_address_if_necessary(v, charset) } + end + + end +end +module ActionMailer + module Quoting + + # Convert the given text into quoted printable format, with an instruction + # that the text be eventually interpreted in the given charset. + def quoted_printable(text, charset) + text = text.gsub( /[^a-z ]/i ) { "=%02x" % $&[0] }.gsub( / /, "_" ) + "=?#{charset}?Q?#{text}?=" + end + + # A quick-and-dirty regexp for determining whether a string contains any + # characters that need escaping. + if !defined?(CHARS_NEEDING_QUOTING) + CHARS_NEEDING_QUOTING = /[\000-\011\013\014\016-\037\177-\377]/ + end + + # Quote the given text if it contains any "illegal" characters + def quote_if_necessary(text, charset) + (text =~ CHARS_NEEDING_QUOTING) ? + quoted_printable(text, charset) : + text + end + + # Quote any of the given strings if they contain any "illegal" characters + def quote_any_if_necessary(charset, *args) + args.map { |v| quote_if_necessary(v, charset) } + end + + # Quote the given address if it needs to be. The address may be a + # regular email address, or it can be a phrase followed by an address in + # brackets. The phrase is the only part that will be quoted, and only if + # it needs to be. This allows extended characters to be used in the + # "to", "from", "cc", and "bcc" headers. + def quote_address_if_necessary(address, charset) + if Array === address + address.map { |a| quote_address_if_necessary(a, charset) } + elsif address =~ /^(\S.*)\s+(<.*>)$/ + address = $2 + phrase = quote_if_necessary($1.gsub(/^['"](.*)['"]$/, '\1'), charset) + "\"#{phrase}\" #{address}" + else + address + end + end + + # Quote any of the given addresses, if they need to be. + def quote_any_address_if_necessary(charset, *args) + args.map { |v| quote_address_if_necessary(v, charset) } + end + + end +end |