angular/angular.js

The input.js file is unnecessarily large, containing many directives including the
vast `ngModel`. This change moves ngModel and a few other directives into their
own files, which will make maintenance easier.

Fix the JSON stringification to output a more meaningful string when an
object cannot be normally converted to a JSON string, such as when the
object contains cyclic references that would cause `JSON.stringify()`
to throw an error.

Closes #10085

Conditionally adds various aria attributes to the built in directives.
This module currently hooks into ng-show/hide, input, textarea and
button as a basic level of support for a11y.

Closes #5486 and #1600

The $$testability service is a collection of methods for use when debugging
or by automated testing tools. It is available globally through the function
`angular.getTestability`.
For reference, see the Angular.Dart version at
angular/angular.dart#1191

This handy service is designed to download and cache template contents
and to throw an error when a template request fails.

BREAKING CHANGE

Angular will now throw a $compile minErr each a template fails to download
for ngView, directives and ngMessage template requests. This changes the former
behavior of silently ignoring failed HTTP requests--or when the template itself
is empty. Please ensure that all directive, ngView and ngMessage code now properly
addresses this scenario. NgInclude is uneffected from this change.

The data jQuery method was re-implemented in 2.0 in a secure way. This made
current hacky Angular solution to move data between elements via changing the
value of the internal node[jQuery.expando] stop working. Instead, just copy the
data from the first element to the other one.

Testing cache leaks on jQuery 2.x is not possible in the same way as it's done
in jqLite or in jQuery 1.x as there is no publicly exposed data storage. One
way to test it would be to intercept all places where a jQuery object is created
to save a reference to the underlaying node but there is no single place in the
jQuery code through which all element creation passes (there are various
shortcuts for performance reasons). Instead we rely on jqLite.cache testing
to find potential data leaks.

BREAKING CHANGE: Angular no longer supports jQuery versions below 2.1.1.

When an observer is set to listen on the pattern, minlength or maxlength attributes
via $attrs then the observer will also listen on the ngPattern, ngMinlength and the
ngMaxlength attributes as well.

Closes #7758

The ngMessages module provides directives designed to better support
handling and reusing error messages within forms without the need to
rely on complex structural directives.

Please note that the API for ngMessages is experimental and may possibly change with
future releases.

Apparently some example files were referenced in angularFiles.js, and this was missed when
2f45133 was checked in. This cleans it up.

Closes #6405

`$sanitize` now uses the same mechanism as `$compile` to validate uris.
By this, the validation in `$sanitize` is more general and can be
configured in the same way as the one in `$compile`.

Changes
- Creates the new private service `$$sanitizeUri`.
- Moves related specs from `compileSpec.js` into `sanitizeUriSpec.js`.
- Refactors the `linky` filter to be less dependent on `$sanitize`
  internal functions.

Fixes #3748.

This significantly increases the size of the loader:
- minified: 1031bytes -> 1509bytes (+46%)
- minified + gzip: 593bytes -> 810bytes (+36%)

I'm not entirely sold on the idea of shipping minErr with the loade. With the current state, the angular-loader behavior is completely broken - this is just a quick fix, we can revisit this change in the future.


Closes #4437
Closes #4874

The $interval service simplifies creating and testing recurring tasks.
This service does not increment $browser's outstanding request count,
which means that scenario tests and Protractor tests will not timeout
when a site uses a polling function registered by $interval. Provides
a workaround for #2402.

For unit tests, repeated tasks can be controlled using ngMock$interval's
tick(), tickNext(), and tickAll() functions.

…st code

BREAKING CHANGE: since all the code in the ngMobile module is touch related,
we are renaming the module to ngTouch.

To migrate, please replace all references to "ngMobile" with "ngTouch" and
"angular-mobile.js" to "angular-touch.js".

Closes #3526

Changes:
- Fix our old code to use bower_components/ as the install dir
- Fix the Bootstrap asset to use github.com/twbs/bootstrap (it moved)
- Fail the build on Bower failure. Bower should not fail silently.

- ngAnimate directive is gone and was replaced with class based animations/transitions
- support for triggering animations on css class additions and removals
- done callback was added to all animation apis
- $animation and $animator where merged into a single $animate service with api:
  - $animate.enter(element, parent, after, done);
  - $animate.leave(element, done);
  - $animate.move(element, parent, after, done);
  - $animate.addClass(element, className, done);
  - $animate.removeClass(element, className, done);

BREAKING CHANGE: too many things changed, we'll write up a separate doc with migration instructions

Changes:
- remove ng-bind-html-unsafe
- ng-bind-html is now in core
- ng-bind-html is secure
  - supports SCE - so you can bind to an arbitrary trusted string
  - automatic sanitization if $sanitize is available

BREAKING CHANGE:
  ng-html-bind-unsafe has been removed and replaced by ng-html-bind
  (which has been removed from ngSanitize.)  ng-bind-html provides
  ng-html-bind-unsafe like behavior (innerHTML's the result without
  sanitization) when bound to the result of $sce.trustAsHtml(string).
  When bound to a plain string, the string is sanitized via $sanitize
  before being innerHTML'd.  If $sanitize isn't available, it's logs an
  exception.

$sce is a service that provides Strict Contextual Escaping services to AngularJS.

Strict Contextual Escaping
--------------------------

Strict Contextual Escaping (SCE) is a mode in which AngularJS requires
bindings in certain contexts to result in a value that is marked as safe
to use for that context One example of such a context is binding
arbitrary html controlled by the user via ng-bind-html-unsafe.  We
refer to these contexts as privileged or SCE contexts.

As of version 1.2, Angular ships with SCE enabled by default.

Note:  When enabled (the default), IE8 in quirks mode is not supported.
In this mode, IE8 allows one to execute arbitrary javascript by the use
of the expression() syntax.  Refer
http://blogs.msdn.com/b/ie/archive/2008/10/16/ending-expressions.aspx
to learn more about them.  You can ensure your document is in standards
mode and not quirks mode by adding <!doctype html> to the top of your
HTML document.

SCE assists in writing code in way that (a) is secure by default and (b)
makes auditing for security vulnerabilities such as XSS, clickjacking,
etc. a lot easier.

Here's an example of a binding in a privileged context:

  <input ng-model="userHtml">
  <div ng-bind-html-unsafe="{{userHtml}}">

Notice that ng-bind-html-unsafe is bound to {{userHtml}} controlled by
the user.  With SCE disabled, this application allows the user to render
arbitrary HTML into the DIV.  In a more realistic example, one may be
rendering user comments, blog articles, etc. via bindings.  (HTML is
just one example of a context where rendering user controlled input
creates security vulnerabilities.)

For the case of HTML, you might use a library, either on the client side, or on the server side,
to sanitize unsafe HTML before binding to the value and rendering it in the document.

How would you ensure that every place that used these types of bindings was bound to a value that
was sanitized by your library (or returned as safe for rendering by your server?)  How can you
ensure that you didn't accidentally delete the line that sanitized the value, or renamed some
properties/fields and forgot to update the binding to the sanitized value?

To be secure by default, you want to ensure that any such bindings are disallowed unless you can
determine that something explicitly says it's safe to use a value for binding in that
context.  You can then audit your code (a simple grep would do) to ensure that this is only done
for those values that you can easily tell are safe - because they were received from your server,
sanitized by your library, etc.  You can organize your codebase to help with this - perhaps
allowing only the files in a specific directory to do this.  Ensuring that the internal API
exposed by that code doesn't markup arbitrary values as safe then becomes a more manageable task.

In the case of AngularJS' SCE service, one uses $sce.trustAs (and
shorthand methods such as $sce.trustAsHtml, etc.) to obtain values that
will be accepted by SCE / privileged contexts.

In privileged contexts, directives and code will bind to the result of
$sce.getTrusted(context, value) rather than to the value directly.
Directives use $sce.parseAs rather than $parse to watch attribute
bindings, which performs the $sce.getTrusted behind the scenes on
non-constant literals.

As an example, ngBindHtmlUnsafe uses $sce.parseAsHtml(binding
expression).  Here's the actual code (slightly simplified):

  var ngBindHtmlUnsafeDirective = ['$sce', function($sce) {
    return function(scope, element, attr) {
      scope.$watch($sce.parseAsHtml(attr.ngBindHtmlUnsafe), function(value) {
        element.html(value || '');
      });
    };
  }];

Impact on loading templates
---------------------------

This applies both to the ng-include directive as well as templateUrl's
specified by directives.

By default, Angular only loads templates from the same domain and
protocol as the application document.  This is done by calling
$sce.getTrustedResourceUrl on the template URL.  To load templates from
other domains and/or protocols, you may either either whitelist them or
wrap it into a trusted value.

*Please note*:
The browser's Same Origin Policy and Cross-Origin Resource Sharing
(CORS) policy apply in addition to this and may further restrict whether
the template is successfully loaded.  This means that without the right
CORS policy, loading templates from a different domain won't work on all
browsers.  Also, loading templates from file:// URL does not work on
some browsers.

This feels like too much overhead for the developer?
----------------------------------------------------

It's important to remember that SCE only applies to interpolation expressions.

If your expressions are constant literals, they're automatically trusted
and you don't need to call $sce.trustAs on them.
e.g.  <div ng-html-bind-unsafe="'<b>implicitly trusted</b>'"></div> just works.

Additionally, a[href] and img[src] automatically sanitize their URLs and
do not pass them through $sce.getTrusted.  SCE doesn't play a role here.

The included $sceDelegate comes with sane defaults to allow you to load
templates in ng-include from your application's domain without having to
even know about SCE.  It blocks loading templates from other domains or
loading templates over http from an https served document.  You can
change these by setting your own custom whitelists and blacklists for
matching such URLs.

This significantly reduces the overhead.  It is far easier to pay the
small overhead and have an application that's secure and can be audited
to verify that with much more ease than bolting security onto an
application later.

… files

$route, $routeParams and ngView have been pulled from core angular.js
to angular-route.js/ngRoute module.

This is was done to in order keep the core focused on most commonly
used functionality and allow community routers to be freely used
instead of $route service.

There is no need to panic, angular-route will keep on being supported
by the angular team.

Note: I'm intentionally not fixing tutorial links. Tutorial will need
bigger changes and those should be done when we update tutorial to
1.2.

BREAKING CHANGE: applications that use $route will now need to load
angular-route.js file and define dependency on ngRoute module.

Before:

```
...
<script src="angular.js"></script>
...
var myApp = angular.module('myApp', ['someOtherModule']);
...
```

After:

```
...
<script src="angular.js"></script>
<script src="angular-route.js"></script>
...
var myApp = angular.module('myApp', ['ngRoute', 'someOtherModule']);
...
```

Closes #2804

- add toThrowNg matcher

This new service is used by the ngSwipeLeft/Right directives, and by the
separate ngCarousel and swipe-to-delete directives which are under
development.

…the docs and remove from the build process

This directive is adapted from ui-if in the AngularUI project and provides a complement
to the ngShow/ngHide directives that only change the visibility of the DOM element and
ngSwitch which does change the DOM but is more verbose.