Auto merge of #23472 - ffwff:master, r=cybai

Add value sanitization for input[type=email]

<!-- Please describe your changes on the following line: -->
Add value sanitization for input[type=email] as per the [HTML specification](https://html.spec.whatwg.org/multipage/input.html#e-mail-state-(type=email)).

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix part of #21810 (GitHub issue number if applicable)

<!-- Either: -->
- [x] There are tests for these changes

<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/23472)
<!-- Reviewable:end -->

components/script/dom/htmlinputelement.rs

@@ -63,7 +63,7 @@ use std::cell::Cell;
 use std::ops::Range;
 use style::attr::AttrValue;
 use style::element_state::ElementState;
-use style::str::split_commas;
+use style::str::{split_commas, str_join};
 
 const DEFAULT_SUBMIT_VALUE: &'static str = "Submit";
 const DEFAULT_RESET_VALUE: &'static str = "Reset";
@@ -1195,6 +1195,24 @@ impl HTMLInputElement {
             InputType::Range => {
                 value.set_best_representation_of_the_floating_point_number();
             },
+            InputType::Email => {
+                if !self.Multiple() {
+                    value.strip_newlines();
+                    value.strip_leading_and_trailing_ascii_whitespace();
+                } else {
+                    let sanitized = str_join(
+                        split_commas(value).map(|token| {
+                            let mut token = DOMString::from_string(token.to_string());
+                            token.strip_newlines();
+                            token.strip_leading_and_trailing_ascii_whitespace();
+                            token
+                        }),
+                        ",",
+                    );
+                    value.clear();
+                    value.push_str(sanitized.as_str());
+                }
+            },
             _ => (),
         }
     }

tests/wpt/metadata/html/semantics/forms/the-input-element/email.html.ini

@@ -1,17 +1,8 @@
 [email.html]
   type: testharness
-  [value should be sanitized: strip line breaks]
-    expected: FAIL
-
   [Email address validity]
     expected: FAIL
 
-  [When the multiple attribute is removed, the user agent must run the value sanitization algorithm]
-    expected: FAIL
-
-  [run the value sanitization algorithm after setting a new value]
-    expected: FAIL
-
   [valid value is a set of valid email addresses separated by a single ',']
     expected: FAIL
 

tests/wpt/metadata/html/semantics/forms/the-input-element/type-change-state.html.ini

@@ -1,35 +1,23 @@
 [type-change-state.html]
   type: testharness
-  [change state from hidden to email]
-    expected: FAIL
-
   [change state from hidden to datetime]
     expected: FAIL
 
   [change state from hidden to range]
     expected: FAIL
 
-  [change state from text to email]
-    expected: FAIL
-
   [change state from text to datetime]
     expected: FAIL
 
   [change state from text to range]
     expected: FAIL
 
-  [change state from search to email]
-    expected: FAIL
-
   [change state from search to datetime]
     expected: FAIL
 
   [change state from search to range]
     expected: FAIL
 
-  [change state from tel to email]
-    expected: FAIL
-
   [change state from tel to datetime]
     expected: FAIL
 
@@ -48,9 +36,6 @@
   [change state from email to range]
     expected: FAIL
 
-  [change state from password to email]
-    expected: FAIL
-
   [change state from password to datetime]
     expected: FAIL
 
@@ -69,9 +54,6 @@
   [change state from datetime to url]
     expected: FAIL
 
-  [change state from datetime to email]
-    expected: FAIL
-
   [change state from datetime to password]
     expected: FAIL
 
@@ -108,57 +90,36 @@
   [change state from number to range]
     expected: FAIL
 
-  [change state from range to email]
-    expected: FAIL
-
   [change state from range to datetime]
     expected: FAIL
 
-  [change state from checkbox to email]
-    expected: FAIL
-
   [change state from checkbox to range]
     expected: FAIL
 
-  [change state from radio to email]
-    expected: FAIL
-
   [change state from radio to datetime]
     expected: FAIL
 
   [change state from radio to range]
     expected: FAIL
 
-  [change state from submit to email]
-    expected: FAIL
-
   [change state from submit to datetime]
     expected: FAIL
 
   [change state from submit to range]
     expected: FAIL
 
-  [change state from image to email]
-    expected: FAIL
-
   [change state from image to datetime]
     expected: FAIL
 
   [change state from image to range]
     expected: FAIL
 
-  [change state from reset to email]
-    expected: FAIL
-
   [change state from reset to datetime]
     expected: FAIL
 
   [change state from reset to range]
     expected: FAIL
 
-  [change state from button to email]
-    expected: FAIL
-
   [change state from button to datetime]
     expected: FAIL
 

tests/wpt/metadata/html/semantics/forms/the-input-element/valueMode.html.ini

@@ -11,10 +11,3 @@
 
   [value IDL attribute of input type range with value attribute]
     expected: FAIL
-
-  [value IDL attribute of input type email without value attribute]
-    expected: FAIL
-
-  [value IDL attribute of input type email with value attribute]
-    expected: FAIL
-