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Fix a hang in fancy date picker for Ye Olde Time Years

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Summary:
Fixes T12960. When the user enters a date like "1917", we currently loop ~20 million times.

Instead:

  - Be a little more careful about parsing.
  - Javascript's default behavior of interpreting "2001-02-31" as "2001-03-03" ("February 31" -> "March 3") already seems reasonable, so just let it do that.

Test Plan:
Verified these behaviors:

  - `2017-08-08` - Valid, recent.
  - `17-08-08` - Valid, recent.
  - `1917-08-08` - Valid, a century ago, no loop.
  - `2017-02-31` - "February 31", interpreted as "March 3" by Javascsript, seems reasonable.
  - `Quack` - Default, current time.
  - `0/0/0`, `0/99/0` - Default, current time.

Reviewers: avivey, chad

Reviewed By: chad

Maniphest Tasks: T12960

Differential Revision: https://secure.phabricator.com/D18383
This commit is contained in:
epriestley 2017-08-10 03:31:20 -07:00
parent 92c49c3772
commit e89087fc51
2 changed files with 37 additions and 25 deletions
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18
resources/celerity/map.php
View file

@ -484,7 +484,7 @@ return array(
'rsrc/js/core/behavior-device.js' => 'bb1dd507',
'rsrc/js/core/behavior-drag-and-drop-textarea.js' => '484a6e22',
'rsrc/js/core/behavior-error-log.js' => '6882e80a',
'rsrc/js/core/behavior-fancy-datepicker.js' => 'a9210d03',
'rsrc/js/core/behavior-fancy-datepicker.js' => 'ecf4e799',
'rsrc/js/core/behavior-file-tree.js' => '88236f00',
'rsrc/js/core/behavior-form.js' => '5c54cbf3',
'rsrc/js/core/behavior-gesture.js' => '3ab51e2c',
@ -633,7 +633,7 @@ return array(
'javelin-behavior-editengine-reorder-fields' => 'b59e1e96',
'javelin-behavior-error-log' => '6882e80a',
'javelin-behavior-event-all-day' => 'b41537c9',
'javelin-behavior-fancy-datepicker' => 'a9210d03',
'javelin-behavior-fancy-datepicker' => 'ecf4e799',
'javelin-behavior-global-drag-and-drop' => '960f6a39',
'javelin-behavior-herald-rule-editor' => '7ebaeed3',
'javelin-behavior-high-security-warning' => 'a464fe03',
@ -1716,13 +1716,6 @@ return array(
'javelin-uri',
'phabricator-keyboard-shortcut',
),
'a9210d03' => array(
'javelin-behavior',
'javelin-util',
'javelin-dom',
'javelin-stratcom',
'javelin-vector',
),
'a9f88de2' => array(
'javelin-behavior',
'javelin-dom',
@ -2105,6 +2098,13 @@ return array(
'javelin-dom',
'phabricator-draggable-list',
),
'ecf4e799' => array(
'javelin-behavior',
'javelin-util',
'javelin-dom',
'javelin-stratcom',
'javelin-vector',
),
'edf8a145' => array(
'javelin-behavior',
'javelin-uri',

44
webroot/rsrc/js/core/behavior-fancy-datepicker.js
View file

@ -287,26 +287,38 @@ JX.behavior('fancy-datepicker', function(config, statics) {
};
function getValidDate() {
var written_date = new Date(value_y, value_m-1, value_d);
var year_int = parseInt(value_y, 10);
if (isNaN(year_int) || year_int < 0) {
return new Date();
}
// If the user enters "11" for the year, interpret it as "2011" (which
// is almost certainly what they mean) not "1911" (which is the default
// behavior of Javascript).
if (year_int < 70) {
year_int += 2000;
}
var month_int = parseInt(value_m, 10);
if (isNaN(month_int) || month_int < 1 || month_int > 12) {
return new Date();
}
// In Javascript, January is "0", not "1", so adjust the value down.
month_int = month_int - 1;
var day_int = parseInt(value_d, 10);
if (isNaN(day_int) || day_int < 1 || day_int > 31) {
return new Date();
}
var written_date = new Date(year_int, month_int, day_int);
if (isNaN(written_date.getTime())) {
return new Date();
} else {
//year 01 should be 2001, not 1901
if (written_date.getYear() < 70) {
value_y += 2000;
written_date = new Date(value_y, value_m-1, value_d);
}
// adjust for a date like February 31
var adjust = 1;
while (written_date.getMonth() !== value_m-1) {
written_date = new Date(value_y, value_m-1, value_d-adjust);
adjust++;
}
return written_date;
}
return written_date;
}