diff options
Diffstat (limited to 'lib/net/imap.rb')
| -rw-r--r-- | lib/net/imap.rb | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/lib/net/imap.rb b/lib/net/imap.rb index 8b7529d79d..3a8145e03c 100644 --- a/lib/net/imap.rb +++ b/lib/net/imap.rb @@ -270,6 +270,16 @@ module Net return @@debug = val end + # Returns the max number of flags interned to symbols. + def self.max_flag_count + return @@max_flag_count + end + + # Sets the max number of flags interned to symbols. + def self.max_flag_count=(count) + @@max_flag_count = count + end + # Adds an authenticator for Net::IMAP#authenticate. +auth_type+ # is the type of authentication this authenticator supports # (for instance, "LOGIN"). The +authenticator+ is an object @@ -929,6 +939,7 @@ module Net @@debug = false @@authenticators = {} + @@max_flag_count = 10000 # call-seq: # Net::IMAP.new(host, options = {}) @@ -1929,6 +1940,14 @@ module Net end class ResponseParser # :nodoc: + def initialize + @str = nil + @pos = nil + @lex_state = nil + @token = nil + @flag_symbols = {} + end + def parse(str) @str = str @pos = 0 @@ -2939,7 +2958,16 @@ module Net if @str.index(/\(([^)]*)\)/ni, @pos) @pos = $~.end(0) return $1.scan(FLAG_REGEXP).collect { |flag, atom| - atom || flag.capitalize.intern + if atom + atom + else + symbol = flag.capitalize.untaint.intern + @flag_symbols[symbol] = true + if @flag_symbols.length > IMAP.max_flag_count + raise FlagCountError, "number of flag symbols exceeded" + end + symbol + end } else parse_error("invalid flag list") @@ -3410,6 +3438,10 @@ module Net # out due to inactivity. class ByeResponseError < ResponseError end + + # Error raised when too many flags are interned to symbols. + class FlagCountError < Error + end end end |