* 2.3:
[Debug] fixed unit tests
Avoid notice from being *eaten* by fatal error.
Teardown used wrong property
Modified guessDefaultEscapingStrategy to not escape txt templates
Fix DateType for 32bits computers.
Fixed the registration of validation.xml file when the form is disabled
Fixes#9633, Removed dependency to Symfony\Bundle\FrameworkBundle\Tests\TestCase
[Validator] Replaced inexistent interface.
When getting the session's id, check if the session is not closed
Adjusting CacheClear Warmup method to namespaced kernels
Conflicts:
src/Symfony/Bundle/FrameworkBundle/Command/CacheClearCommand.php
* 2.2:
Teardown used wrong property
Modified guessDefaultEscapingStrategy to not escape txt templates
Fix DateType for 32bits computers.
Fixed the registration of validation.xml file when the form is disabled
When getting the session's id, check if the session is not closed
* 2.3:
Fixed mistake in upgrade docu
Container::camelize also takes backslashes into consideration
fixed typos
fixed @expectedException class names
fixed some typos
fixed @expectedException class names
Typo and better wording for german validator translation
* 2.3:
Fix: duplicate usage of Symfony\Component\HttpFoundation\Response
[Form] add support for Length and Range constraint in order to replace MaxLength, MinLength, Max and Min constraints in next release (2.3)
Revert "merged branch Tobion/flattenexception (PR #9111)"
[Form] check the required output timezone against the actual timezone of the input datetime object, rather than the expected timezone supplied
Conflicts:
src/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php
* 2.3:
Run all tests in parallel.
Fixed an entity class name.
[HttpKernel] fix usage of deprecated FlattenException
Conflicts:
src/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php
This PR was merged into the master branch.
Discussion
----------
New Component: Expression Language
| Q | A
| ------------- | ---
| Bug fix? | no
| New feature? | yes
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | #8850, #7352
| License | MIT
| Doc PR | not yet
TODO:
- [ ] write documentation
- [x] add tests for the new component
- [x] implement expression support for access rules in the security component
- [x] find a better character/convention for expressions in the YAML format
- [x] check the performance of the evaluation mode
- [x] better error messages in the evaluation mode
- [x] add support in the Routing
- [x] add support in the Validator
The ExpressionLanguage component provides an engine that can compile and
evaluate expressions.
An expression is a one-liner that returns a value (mostly, but not limited to, Booleans).
It is a strip-down version of Twig (only the expression part of it is
implemented.) Like Twig, the expression is lexed, parsed, and
compiled/evaluated. So, it is immune to external injections by design.
If we compare it to Twig, here are the main big differences:
* only support for Twig expressions
* no ambiguity for calls (foo.bar is only valid for properties, foo['bar'] is only valid for array calls, and foo.bar() is required for method calls)
* no support for naming conventions in method calls (if the method is named getFoo(), you must use getFoo() and not foo())
* no notion of a line for errors, but a cursor (we are mostly talking about one-liners here)
* removed everything specific to the templating engine (like output escaping or filters)
* no support for named arguments in method calls
* only one extension point with functions (no possibility to define new operators, ...)
* and probably even more I don't remember right now
* there is no need for a runtime environment, the compiled PHP string is self-sufficient
An open question is whether we keep the difference betweens arrays and hashes.
The other big difference with Twig is that it can work in two modes (possible
because of the restrictions described above):
* compilation: the expression is compiled to PHP and is self-sufficient
* evaluation: the expression is evaluated without being compiled to PHP (the node tree produced by the parser can be serialized and evaluated afterwards -- so it can be saved on disk or in a database to speed up things when needed)
Let's see a simple example:
```php
$language = new ExpressionLanguage();
echo $language->evaluate('1 + 1');
// will echo 2
echo $language->compile('1 + 2');
// will echo "(1 + 2)"
```
The language supports:
* all basic math operators (with precedence rules):
* unary: not, !, -, +
* binary: or, ||, and, &&, b-or, b-xor, b-and, ==, ===, !=, !==, <, >, >=, <=, not in, in, .., +, -, ~, *, /, %, **
* all literals supported by Twig: strings, numbers, arrays (`[1, 2]`), hashes
(`{a: "b"}`), Booleans, and null.
* simple variables (`foo`), array accesses (`foo[1]`), property accesses
(`foo.bar`), and method calls (`foo.bar(1, 2)`).
* the ternary operator: `true ? true : false` (and all the shortcuts
implemented in Twig).
* function calls (`constant('FOO')` -- `constant` is the only built-in
functions).
* and of course, any combination of the above.
The compilation is better for performances as the end result is just a plain PHP string without any runtime. For the evaluation, we need to tokenize, parse, and evaluate the nodes on the fly. This can be optimized by using a `ParsedExpression` or a `SerializedParsedExpression` instead:
```php
$nodes = $language->parse($expr, $names);
$expression = new SerializedParsedExpression($expr, serialize($nodes));
// You can now store the expression in a DB for later reuse
// a SerializedParsedExpression can be evaluated like any other expressions,
// but under the hood, the lexer and the parser won't be used at all, so it''s much faster.
$language->evaluate($expression);
```
That's all folks!
I can see many use cases for this new component, and we have two use cases in
Symfony that we can implement right away.
## Using Expressions in the Service Container
The first one is expression support in the service container (it would replace
#8850) -- anywhere you can pass an argument in the service container, you can
use an expression:
```php
$c->register('foo', 'Foo')->addArgument(new Expression('bar.getvalue()'));
```
You have access to the service container via `this`:
container.get("bar").getvalue(container.getParameter("value"))
The implementation comes with two functions that simplifies expressions
(`service()` to get a service, and `parameter` to get a parameter value). The
previous example can be simplified to:
service("bar").getvalue(parameter("value"))
Here is how to use it in XML:
```xml
<parameters>
<parameter key="value">foobar</parameter>
</parameters>
<services>
<service id="foo" class="Foo">
<argument type="expression">service('bar').getvalue(parameter('value'))</argument>
</service>
<service id="bar" class="Bar" />
</services>
```
and in YAML (I chose the syntax randomly ;)):
```yaml
parameters:
value: foobar
services:
bar:
class: Bar
foo:
class: Foo
arguments: [@=service("bar").getvalue(parameter("value"))]
```
When using the container builder, Symfony uses the evaluator, but with the PHP
dumper, the compiler is used, and there is no overhead as the expression
engine is not needed at runtime. The expression above would be compiled to:
```php
$this->get("bar")->getvalue($this->getParameter("value"))
```
## Using Expression for Security Access Control Rules
The second use case in Symfony is for access rules.
As we all know, the way to configure the security access control rules is confusing, which might lead to insecure applications (see http://symfony.com/blog/security-access-control-documentation-issue for more information).
Here is how the new `allow_if` works:
```yaml
access_control:
- { path: ^/_internal/secure, allow_if: "'127.0.0.1' == request.getClientIp() or has_role('ROLE_ADMIN')" }
```
This one restricts the URLs starting with `/_internal/secure` to people browsing from the localhost. Here, `request` is the current Request instance. In the expression, there is access to the following variables:
* `request`
* `token`
* `user`
And to the following functions:
* `is_anonymous`
* `is_authenticated`
* `is_fully_authenticated`
* `is_rememberme`
* `has_role`
You can also use expressions in Twig, which works well with the `is_granted` function:
```jinja
{% if is_granted(expression('has_role("FOO")')) %}
...
{% endif %}
```
## Using Expressions in the Routing
Out of the box, Symfony can only match an incoming request based on some pre-determined variables (like the path info, the method, the scheme, ...). But some people want to be able to match on more complex logic, based on other information of the Request object. That's why we introduced `RequestMatcherInterface` recently (but we no default implementation in Symfony itself).
The first change I've made (not related to expression support) is implement this interface for the default `UrlMatcher`. It was simple enough.
Then, I've added a new `condition` configuration for Route objects, which allow you to add any valid expression. An expression has access to the `request` and to the routing `context`.
Here is how one would configure it in a YAML file:
```yaml
hello:
path: /hello/{name}
condition: "context.getMethod() in ['GET', 'HEAD'] and request.headers.get('User-Agent') =~ '/firefox/i'"
```
Why do I keep the context as all the data are also available in the request? Because you can also use the condition without using the RequestMatcherInterface, in which case, you don't have access to the request. So, the previous example is equivalent to:
```yaml
hello:
path: /hello/{name}
condition: "request.getMethod() in ['GET', 'HEAD'] and request.headers.get('User-Agent') =~ '/firefox/i'"
```
When using the PHP dumper, there is no overhead as the condition is compiled. Here is how it looks like:
```php
// hello
if (0 === strpos($pathinfo, '/hello') && preg_match('#^/hello/(?P<name>[^/]++)$#s', $pathinfo, $matches) && (in_array($context->getMethod(), array(0 => "GET", 1 => "HEAD")) && preg_match("/firefox/i", $request->headers->get("User-Agent")))) {
return $this->mergeDefaults(array_replace($matches, array('_route' => 'hello')), array ());
}
```
Be warned that conditions are not taken into account when generating a URL.
## Using Expressions in the Validator
There is a new Expression constraint that you can put on a class. The expression is then evaluated for validation:
```php
use Symfony\Component\Validator\Constraints as Assert;
/**
* @Assert\Condition(condition="this.getFoo() == 'fo'", message="Not good!")
*/
class Obj
{
public function getFoo()
{
return 'foo';
}
}
```
In the expression, you get access to the current object via the `this` variable.
## Dynamic annotations
The expression language component is also very useful in annotations. the SensoLabs FrameworkExtraBundle leverages this possibility to implement HTTP validation caching in the `@Cache` annotation and to add a new `@Security` annotation (see sensiolabs/SensioFrameworkExtraBundle#238.)
Commits
-------
d4ebbfd [Validator] Renamed Condition to Expression and added possibility to set it onto properties
a3b3a78 [Validator] added a constraint that runs an expression
1bcfb40 added optimized versions of expressions
984bd38 mades things more consistent for the end user
d477f15 [Routing] added support for expression conditions in routes
86ac8d7 [ExpressionLanguage] improved performance
e369d14 added a Twig extension to create Expression instances
38b7fde added support for expression in control access rules
2777ac7 [HttpFoundation] added ExpressionRequestMatcher
c25abd9 [DependencyInjection] added support for expressions in the service container
3a41781 [ExpressionLanguage] added support for regexes
9d98fa2 [ExpressionLanguage] added the component
* 2.3:
fixed phpdoc
Fix some annotates
[FrameworkBundle] made sure that the debug event dispatcher is used everywhere
[HttpKernel] remove unneeded strtoupper
updated the composer install command to reflect changes in Composer
Conflicts:
src/Symfony/Component/Serializer/Encoder/XmlEncoder.php
* 2.2:
Fix some annotates
[FrameworkBundle] made sure that the debug event dispatcher is used everywhere
[HttpKernel] remove unneeded strtoupper
updated the composer install command to reflect changes in Composer
Conflicts:
src/Symfony/Component/Console/Application.php
src/Symfony/Component/Console/Command/Command.php
src/Symfony/Component/Console/Input/InputDefinition.php
src/Symfony/Component/CssSelector/Node/CombinedSelectorNode.php
src/Symfony/Component/Form/Form.php
src/Symfony/Component/HttpKernel/Debug/ErrorHandler.php
src/Symfony/Component/HttpKernel/DependencyInjection/RegisterListenersPass.php
src/Symfony/Component/HttpKernel/Tests/DependencyInjection/RegisterListenersPassTest.php
src/Symfony/Component/Locale/Locale.php
src/Symfony/Component/Locale/README.md
src/Symfony/Component/Locale/Stub/DateFormat/FullTransformer.php
* 2.3:
fixes RequestDataCollector bug, visible when used on Drupal8
[Console] fixed exception rendering when nested styles
[Console] added some more information about OutputFormatter::replaceStyle()
[Console] fixed the formatter for single-char tags
[Console] Escape exception message during the rendering of an exception
[DomCrawler] fixed HTML5 form attribute handling
Making tests pass on mac os x without this change tests would fail under mac os x at least in 10.8.2
[BrowserKit] Fixed the handling of parameters when redirecting
[Process] Properly close pipes after a Process::stop call
fixed bytes conversion when used on 32-bits systems
Typo fix
HttpFoundation RequestTest - Fixed indentation and removed comments
HttpFoundation Request test for #8619
LICENSE files moved to meta folders
added missing method in the UPGRADE file for 2.2 (closes#8941)
[Form] Fixed: "required" attribute is not added to <select> tag if no empty value
[Translation] Removed an unneeded return annotation.
[DomCrawler] Added missing docblocks and removed unneeded return annotation.
Conflicts:
src/Symfony/Component/Process/Tests/AbstractProcessTest.php
* 2.2:
fixes RequestDataCollector bug, visible when used on Drupal8
[Console] fixed exception rendering when nested styles
[Console] added some more information about OutputFormatter::replaceStyle()
[Console] fixed the formatter for single-char tags
[Console] Escape exception message during the rendering of an exception
[BrowserKit] Fixed the handling of parameters when redirecting
Typo fix
HttpFoundation RequestTest - Fixed indentation and removed comments
HttpFoundation Request test for #8619
LICENSE files moved to meta folders
added missing method in the UPGRADE file for 2.2 (closes#8941)
[Translation] Removed an unneeded return annotation.
[DomCrawler] Added missing docblocks and removed unneeded return annotation.
Conflicts:
src/Symfony/Component/BrowserKit/Client.php
src/Symfony/Component/DomCrawler/Crawler.php
* 2.3:
Fixed docblock in UserInterface::getSalt()
[Process] Fix#8970 : read output once the process is finished, enable pipe tests on Windows
[DoctrineBridge] Improved test coverage of EntityChoiceList
[DoctrineBridge] Improved test coverage of EntityChoiceList
[Form] Improved test coverage of ChoiceList classes
[Form] Fixed expanded choice field to be marked invalid when unknown choices are submitted
[Form] Fixed ChoiceList::get*By*() methods to preserve order and array keys
[Form] Removed usage of the ChoiceList::getIndicesFor*() methods where they don't offer any performance benefit
[Form] Improved test coverage of ChoiceList classes
[Form] Fixed expanded choice field to be marked invalid when unknown choices are submitted
[Form] Fixed ChoiceList::get*By*() methods to preserve order and array keys
[Form] Removed usage of the ChoiceList::getIndicesFor*() methods where they don't offer any performance benefit
Removed duplicate annotation
[HttpKernel] made code more reliable
[HttpFoundation] fixed regression in the way the request format is handled for duplicated requests (closes#8917)
[HttpKernel] fixer HInclude src (closes#8951)
Fixed escaping of service identifiers in configuration
Conflicts:
src/Symfony/Bridge/Doctrine/Tests/Form/ChoiceList/GenericEntityChoiceListTest.php
src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypeTest.php
src/Symfony/Component/HttpKernel/Tests/Fragment/HIncludeFragmentRendererTest.php
* 2.2:
[HttpFoundation] fixed regression in the way the request format is handled for duplicated requests (closes#8917)
[HttpKernel] fixer HInclude src (closes#8951)
Fixed escaping of service identifiers in configuration
This PR was merged into the master branch.
Discussion
----------
removed deps checks in unit tests
| Q | A
| ------------- | ---
| Bug fix? | no
| New feature? | no
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | n/a
| License | MIT
| Doc PR | n/a
As Composer is now widely used in the PHP world, having to run composer install before running the test suite is expected. This also has the nice benefit of removing a bunch of code, making things easier to maintain (there is only one place to declare a dev dependency), and probably more.
see fabpot/Silex#626 where we did the same a while ago for Silex.
Commits
-------
de50621 removed deps checks in unit tests
* 2.3:
[Locale] fixed build-data exit code in case of an error
fixed request format of sub-requests when explicitely set by the developer (closes#8787)
Sets _format attribute only if it wasn't set previously by the user.
Exclude little words of 'ee' to 'oo' plural transformation
fixed the format of the request used to render an exception
Fix typo in the check_path validator
added a missing use statement (closes#8808)
fix for Process:isSuccessful()
Include untrusted host in the exception message
Conflicts:
src/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php
src/Symfony/Component/HttpKernel/Fragment/InlineFragmentRenderer.php
* 2.2:
[Locale] fixed build-data exit code in case of an error
fixed request format of sub-requests when explicitely set by the developer (closes#8787)
Sets _format attribute only if it wasn't set previously by the user.
Exclude little words of 'ee' to 'oo' plural transformation
fixed the format of the request used to render an exception
Fix typo in the check_path validator
added a missing use statement (closes#8808)
fix for Process:isSuccessful()
Conflicts:
UPGRADE-3.0.md
src/Symfony/Component/Locale/Resources/data/build-data.php
As Composer is now widely used in the PHP world, having to run composer
install before running the test suite is expected. This also has the
nice benefit of removing a bunch of code, making things easier to
maintain (there is only one place to declare a dev dependency), and
probably more.
* 2.3:
added missing support for the new output API in PHP 5.4+
Fixed bug introduced in #8675
made the filesystem loader compatible with Twig 2.0
bumped Symfony version to 2.3.4-DEV
updated VERSION for 2.3.3
updated CHANGELOG for 2.3.3
bumped Symfony version to 2.2.6
updated VERSION for 2.2.5
update CONTRIBUTORS for 2.2.5
updated CHANGELOG for 2.2.5
[Intl] Updated stubs to reflect ICU 51.2
replaced deprecated Twig features
Conflicts:
src/Symfony/Component/HttpKernel/Kernel.php
* 2.2:
added missing support for the new output API in PHP 5.4+
Fixed bug introduced in #8675
made the filesystem loader compatible with Twig 2.0
bumped Symfony version to 2.2.6
updated VERSION for 2.2.5
update CONTRIBUTORS for 2.2.5
updated CHANGELOG for 2.2.5
replaced deprecated Twig features
Conflicts:
src/Symfony/Bridge/Twig/Extension/FormExtension.php
src/Symfony/Bridge/Twig/Extension/RoutingExtension.php
src/Symfony/Component/HttpKernel/Kernel.php
Without adding the exists() method, the code happens to work by chance,
just because the current implementation of Twig exits() method calls
findTemplate().
But we know that it won't be the case anymore as of Twig 2.0.
* 2.3:
[Validator] fixed ConstraintViolation:: incorrect when nested
handle Optional and Required constraints from XML or YAML sources correctly
added missing comments to WebTestCase
Fixed#8455: PhpExecutableFinder::find() does not always return the correct binary
Added missing files .gitignore
[DependencyInjection] Fix Container::camelize to convert beginning and ending chars
[Validator] Fixed groups argument misplace for validateValue method from validator class
[Form] Fix of "PATCH'ed forms are never valid"
* 2.3: (37 commits)
[Console] renamed ConsoleForExceptionEvent into ConsoleExceptionEvent
Fix several instances of doubled words
[Security] Fixed the check if an interface exists.
Added missing slovak translations
[FrameworkBundle] removed HttpFoundation classes from HttpKernel cache
[Finder] Fix iteration fails with non-rewindable streams
[Finder] Fix unexpected duplicate sub path related AppendIterator issue
[Security] Added tests for the DefaultLogoutSuccessHandler.
[Security] Added tests for the DefaultAuthenticationSuccessHandler.
[ClassLoader] tiny refactoring
[Security] Added tests for the DefaultAuthenticationFailureHandler.
[Security] Added tests for the remember me ReponseListener.
[Security] Added tests for the SessionAuthenticationStrategy.
[Security] Added tests for the AccessMap.
[FrameworkBundle] removed deprecated method from cache:clear command
[WebProfiler] remove deprecated verbose option
fix logger in regards to DebugLoggerInterface
[Form] [2.3] removed old option
Added type of return value in VoterInterface.
[Console] Add namespace support back in to list command
...
* 2.2:
fixed CS
Fixed XML syntax.
Fixed parsing of leading blank lines in folded scalars. Closes#7989.
[Form] Fixed a method name.
Added a test case for Loader::import().
Fixed Loader import
[Console] Added dedicated testcase for HelperSet class
[Serializer] fixed CS (refs #7971)
Fixed fatal error in normalize/denormalizeObject.
Fixed 2 namespaces
Conflicts:
src/Symfony/Component/HttpKernel/Debug/ErrorHandler.php
src/Symfony/Component/HttpKernel/Tests/Fragment/InlineFragmentRendererTest.php
* 2.2:
[BrowserKit] fixed BC break done recently
[Process] Fix#5594 : `termsig` must be used instead of `stopsig` in exceptions when a process is signaled
[Console] find command even if its name is a namespace too (closes#7860)
Rename misprint property (from warmer to finder)
Reset all catalogues when adding resource to fallback locale (#7715, #7819)
Added reloading of fallback catalogues when calling addResource() (#7715)
Re-added context information to log list
Add This field is missing RU translation
Conflicts:
src/Symfony/Component/Console/Tests/ApplicationTest.php
* 2.1:
[BrowserKit] fixed BC break done recently
[Process] Fix#5594 : `termsig` must be used instead of `stopsig` in exceptions when a process is signaled
Rename misprint property (from warmer to finder)
Add This field is missing RU translation
Conflicts:
src/Symfony/Component/Process/Process.php
src/Symfony/Component/Validator/Resources/translations/validators.ru.xlf
This PR was merged into the master branch.
Discussion
----------
[TwigBundle] Make twig extension handle custom template escaping guesser
I wanted to add a custom template escaping guesser for twig like in http://twig.sensiolabs.org/doc/recipes.html#using-the-template-name-to-set-the-default-escaping-strategy
This pull request allows you register a service id and a method as a custom guesser:
twig:
autoescape: my_service:guess
Documentation is missing for this PR and the unit tests are not that good. I´d work on it if this PR has any chance of getting merged?
| Q | A
| ------------- | ---
| Bug fix? | no
| New feature? | yes
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | none
| License | MIT
| Doc PR | (missing)
Commits
-------
c2c1ed0 make twig extension handle custom template escaping guesser
