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path: root/activesupport/lib/active_support/message_verifier.rb
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* Missing documentation about hash algorithm option for MessageVerifier [ci skip]Mehmet Emin İNAÇ2016-02-181-0/+6
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* Correct the time comparison for remember_me tokenJeffrey Warren2015-12-101-1/+1
| | | | | Corrects the time comparison to be `Time.now < time` which allows the user to be set only when the current time is less than the 2 week window given in the example.
* Freeze string literals when not mutated.schneems2015-07-191-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I wrote a utility that helps find areas where you could optimize your program using a frozen string instead of a string literal, it's called [let_it_go](https://github.com/schneems/let_it_go). After going through the output and adding `.freeze` I was able to eliminate the creation of 1,114 string objects on EVERY request to [codetriage](codetriage.com). How does this impact execution? To look at memory: ```ruby require 'get_process_mem' mem = GetProcessMem.new GC.start GC.disable 1_114.times { " " } before = mem.mb after = mem.mb GC.enable puts "Diff: #{after - before} mb" ``` Creating 1,114 string objects results in `Diff: 0.03125 mb` of RAM allocated on every request. Or 1mb every 32 requests. To look at raw speed: ```ruby require 'benchmark/ips' number_of_objects_reduced = 1_114 Benchmark.ips do |x| x.report("freeze") { number_of_objects_reduced.times { " ".freeze } } x.report("no-freeze") { number_of_objects_reduced.times { " " } } end ``` We get the results ``` Calculating ------------------------------------- freeze 1.428k i/100ms no-freeze 609.000 i/100ms ------------------------------------------------- freeze 14.363k (± 8.5%) i/s - 71.400k no-freeze 6.084k (± 8.1%) i/s - 30.450k ``` Now we can do some maths: ```ruby ips = 6_226k # iterations / 1 second call_time_before = 1.0 / ips # seconds per iteration ips = 15_254 # iterations / 1 second call_time_after = 1.0 / ips # seconds per iteration diff = call_time_before - call_time_after number_of_objects_reduced * diff * 100 # => 0.4530373333993266 miliseconds saved per request ``` So we're shaving off 1 second of execution time for every 220 requests. Is this going to be an insane speed boost to any Rails app: nope. Should we merge it: yep. p.s. If you know of a method call that doesn't modify a string input such as [String#gsub](https://github.com/schneems/let_it_go/blob/b0e2da69f0cca87ab581022baa43291cdf48638c/lib/let_it_go/core_ext/string.rb#L37) please [give me a pull request to the appropriate file](https://github.com/schneems/let_it_go/blob/b0e2da69f0cca87ab581022baa43291cdf48638c/lib/let_it_go/core_ext/string.rb#L37), or open an issue in LetItGo so we can track and freeze more strings. Keep those strings Frozen ![](https://www.dropbox.com/s/z4dj9fdsv213r4v/let-it-go.gif?dl=1)
* Fix the message verifier encoding issueRoque Pinel2015-06-141-1/+1
| | | | | | | ```ruby verifier = ActiveSupport::MessageVerifier.new('secret') verifier.verify("\xff") # => ArgumentError: invalid byte sequence in UTF-8 ```
* [ci skip] fix typo in MessageVerifier#verify docsyuuji.yaginuma2014-12-101-1/+1
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* Copy-edit the MessageVerifier documentation [ci skip]Rafael Mendonça França2014-12-041-7/+6
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* Add documentation to MessageVerifierclaudiob2014-12-031-4/+50
| | | | | | | | [ci skip] Complements #17727 and closes ee73d9ff8. @lleger How do you feel about this?
* Add some FIXME notes about documentation [ci skip]Rafael Mendonça França2014-12-021-0/+4
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* Prefer object/nil over `true`/`false`Rafael Mendonça França2014-12-021-6/+4
| | | | | | | | | | | This is the project guideline and the reasons are: * That follows standard Ruby semantics. * Allows the implementation to avoid artificial code like !! or something ? true : false * You do not need to rely on the exact type of 3rd party code. For example, if your method returns str.end_with?('foo') you do not need to make sure end_with? returns a singleton. Your predicate just propagates predicate semantics up regardless of what end_with? returns.
* Add `#verified` and `#valid_message?` to MessageVerifierLogan Leger2014-12-011-6/+15
| | | | | | | | | | | This commit adds a `#verified` method to `ActiveSupport::MessageVerifier` which will return either `false` when it encounters an error or the message. `#verify` continues to raise an `InvalidSignature` exception on error. This commit also adds a convenience boolean method on `MessageVerifier` as a way to check if a message is valid without performing the decoding.
* Abstract encoding strategy for ActiveSupport::MessageVerifierRyan Mohr2014-11-121-2/+10
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* Use AS secure_compare in AS::MessageVerifierGuillermo Iguaran2014-10-231-12/+2
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* Changes "if secret.nil?" to unless secret in MessageVerfierKostiantyn Kahanskyi2014-09-121-1/+1
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* MessageVerifier raises an appropriate exception if the secret is nilKostiantyn Kahanskyi2014-09-121-0/+1
| | | | | Otherwise this will lead to another error later on when generating a signature: TypeError (no implicit conversion of nil into String).
* PR #10635 introduces rescue from ArgumentError thrown by ↵Vipul A M2013-12-121-2/+3
| | | | | | | | `Base64.strict_decode64`. This broke natural order of things for `StaleSessionCheck#stale_session_check!` which tried auto_loading a class based on `ArgumentError` message , and later retrying the `Marshal#load` of class, successfully allowing auto_loading. This PR tries to fix this behavior by forwarding `ArgumentError` 's not raised by `Base64.strict_decode64` , as is, ahead to `StaleSessionCheck#stale_session_check!`
* Use `Base.strict_decode64` instead of `Base.decode64` just as we do in encoding;Vipul A M2013-05-161-1/+5
| | | | Also reduce extra object allocation by creating string directly instead of join on Array
* Updated docs due to removal of serializer accessorAlbert Lash2013-03-241-3/+3
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* Replace comments' non-breaking spaces with spacesclaudiob2012-12-041-1/+1
| | | | | | | | | | Sometimes, on Mac OS X, programmers accidentally press Option+Space rather than just Space and don’t see the difference. The problem is that Option+Space writes a non-breaking space (0XA0) rather than a normal space (0x20). This commit removes all the non-breaking spaces inadvertently introduced in the comments of the code.
* update AS docs [ci skip]Francesco Rodriguez2012-09-171-7/+7
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* remove ActiveSupport::Base64 in favor of ::Base64Sergey Nartimov2012-01-021-3/+3
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* deprecate Base64.encode64s from AS. Use Base64.strict_encode64 insteadVasiliy Ermolovich2011-12-271-2/+2
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* Remove deprecations from Active Support.José Valim2011-12-201-5/+0
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* Fix typo in deprecation noticeClaudio Poli2011-09-161-1/+1
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* Use an options hash to specify digest/cipher algorithm and a serializer for ↵Willem van Bergen2011-09-151-7/+10
| | | | MessageVerifier and MessageEncryptor.
* Add some documentation for the new serializer property of MessageVerifier ↵Willem van Bergen2011-09-151-0/+5
| | | | and MessageEncryptor.
* Implement API suggestions of pull request.Willem van Bergen2011-09-151-6/+5
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* Custom serializers and deserializers in MessageVerifier and MessageEncryptor.Willem van Bergen2011-09-151-2/+6
| | | | | By default, these classes use Marshal for serializing and deserializing messages. Unfortunately, the Marshal format is closely associated with Ruby internals and even changes between different interpreters. This makes the resulting message very hard to impossible to unserialize messages generated by these classes in other environments like node.js. This patch solves this by allowing you to set your own custom serializer and deserializer lambda functions. By default, it still uses Marshal to be backwards compatible.
* more style changessuchasurge2011-03-061-1/+1
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* Deletes trailing whitespaces (over text files only find * -type f -exec sed ↵Santiago Pastorino2010-08-141-7/+7
| | | | 's/[ \t]*$//' -i {} \;)
* Revert "Improve performance of MessageVerifier while keeping it constant time"wycats2010-07-131-4/+4
| | | | This reverts commit 8b05c5207dd5757d55d0c384740db289e6bd5415.
* Improve performance of MessageVerifier while keeping it constant timewycats2010-06-041-4/+4
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* message_verifier.rb needs active_support/core_ext/object/blankXavier Noria2010-01-011-0/+1
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* message_verifier.rb needs active_support/base64Xavier Noria2010-01-011-0/+2
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* String#bytesize is not needed for Ruby >= 1.8.7Xavier Noria2009-11-091-2/+0
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* Ensure MessageVerifier raises appropriate exception on tampered dataPratik Naik2009-10-091-1/+1
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* MessageVerifier#verify raises InvalidSignature if the signature is blankJeffrey Hardy2009-10-051-0/+2
| | | | Signed-off-by: Jeremy Kemper <jeremy@bitsweat.net>
* Use OpenSSL::Digest.const(...).new instead of OpenSSL::Digest::Digest.new(...)Jeremy Kemper2009-09-241-1/+1
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* Explicitly require String#bytesize extensionJeremy Kemper2009-09-241-0/+2
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* Prefer not to shadow a localJeremy Kemper2009-09-131-1/+1
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* making secure_compare fasterAaron Patterson2009-09-131-28/+8
| | | | | | [#3195 state:committed] Signed-off-by: Jeremy Kemper <jeremy@bitsweat.net>
* Dup the arguments to string compare so we can use force_encoding.Michael Koziarski2009-09-131-2/+2
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* Revert "ruby 1.9 friendly secure_compare" because it breaks CI and Sam ↵Yehuda Katz2009-09-121-6/+9
| | | | | | Ruby's suite This reverts commit 5de75398c495f109772b622291362a98bc6c21d1.
* ruby 1.9 friendly secure_compareJakub Kuźma2009-09-121-9/+6
| | | | Signed-off-by: Michael Koziarski <michael@koziarski.com>
* Ruby 1.9: fix MessageVerifier#secure_compareJeremy Kemper2009-09-081-9/+27
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* Fix timing attack vulnerability in ActiveSupport::MessageVerifier.Coda Hale2009-09-041-3/+16
| | | | | | Use a constant-time comparison algorithm to compare the candidate HMAC with the calculated HMAC to prevent leaking information about the calculated HMAC. Signed-off-by: Michael Koziarski <michael@koziarski.com>
* Lazy-require OpenSSLJeremy Kemper2008-11-231-1/+2
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* Don't need _message as it's in the class name alreadyMichael Koziarski2008-11-231-4/+4
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* Add ActiveSupport::MessageVerifier to aid users who need to store ↵Michael Koziarski2008-11-231-0/+45
tamper-proof messages in cookies etc. This is particularly useful for things like remember-me tokens in web applications and auto-unsubscribe links in emails.
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