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MDL-51737 core: Add Edge UserAgent support

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This commit is contained in:
Andrew Nicols 2015-10-13 14:51:29 +08:00
parent 74fad2ce3d
commit 39a731efb4
2 changed files with 143 additions and 1 deletions
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51
lib/classes/useragent.php
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@ -481,6 +481,52 @@ class core_useragent {
return false;
}
/**
* Checks the user agent is Edge (of any version).
*
* @return bool true if Edge
*/
public static function is_edge() {
return self::check_edge_version();
}
/**
* Check the User Agent for the version of Edge.
*
* @param string|int $version A version to check for, returns true if its equal to or greater than that specified.
* @return bool
*/
public static function check_edge_version($version = null) {
$useragent = self::get_user_agent_string();
if ($useragent === false) {
// No User Agent found.
return false;
}
if (strpos($useragent, 'Edge/') === false) {
// Edge was not found in the UA - this is not Edge.
return false;
}
if (empty($version)) {
// No version to check.
return true;
}
// Find the version.
// Edge versions are always in the format:
// Edge/<version>.<OS build number>
preg_match('%Edge/([\d]+)\.(.*)$%', $useragent, $matches);
// Just to be safe, round the version being tested.
// Edge only uses integer versions - the second component is the OS build number.
$version = round($version);
// Check whether the version specified is >= the version found.
return version_compare($matches[1], $version, '>=');
}
/**
* Checks the user agent is IE (of any version).
*
@ -516,6 +562,7 @@ class core_useragent {
} else {
return false;
}
$compatview = false;
// IE8 and later versions may pretend to be IE7 for intranet sites, use Trident version instead,
// the Trident should always describe the capabilities of IE in any emulation mode.
@ -696,7 +743,9 @@ class core_useragent {
// No Apple mobile devices here - editor does not work, course ajax is not touch compatible, etc.
return false;
}
if (strpos($useragent, 'Chrome')) { // Reject chrome browsers - it needs to be tested explicitly.
if (strpos($useragent, 'Chrome')) {
// Reject chrome browsers - it needs to be tested explicitly.
// This will also reject Edge, which pretends to be both Chrome, and Safari.
return false;
}