BlockLogFormatter: Durations are relative to block's timestamp, not Unix epoch

Also fixed legacy code in LogFormatter producing messages for IRC feed.

Bug: T55907
Change-Id: I0df19574f74210a91ce72c79188b6618f04ef9a2

includes/logging/BlockLogFormatter.php

@@ -59,9 +59,15 @@ class BlockLogFormatter extends LogFormatter {
 			// The lrm is needed to make sure that the number
 			// is shown on the correct side of the tooltip text.
 			$durationTooltip = '‎' . htmlspecialchars( $params[4] );
-			$params[4] = Message::rawParam( "<span class='blockExpiry' title='$durationTooltip'>" .
-				$this->context->getLanguage()->translateBlockExpiry( $params[4],
-					$this->context->getUser() ) . '</span>' );
+			$params[4] = Message::rawParam(
+				"<span class='blockExpiry' title='$durationTooltip'>" .
+				$this->context->getLanguage()->translateBlockExpiry(
+					$params[4],
+					$this->context->getUser(),
+					wfTimestamp( TS_UNIX, $this->entry->getTimestamp() )
+				) .
+				'</span>'
+			);
 			$params[5] = isset( $params[5] ) ?
 				self::formatBlockFlags( $params[5], $this->context->getLanguage() ) : '';
 		}

includes/logging/LogFormatter.php

@@ -353,7 +353,11 @@ class LogFormatter {
 							$rawDuration = $parameters['5::duration'];
 							$rawFlags = $parameters['6::flags'];
 						}
-						$duration = $wgContLang->translateBlockExpiry( $rawDuration );
+						$duration = $wgContLang->translateBlockExpiry(
+							$rawDuration,
+							null,
+							wfTimestamp( TS_UNIX, $entry->getTimestamp() )
+						);
 						$flags = BlockLogFormatter::formatBlockFlags( $rawFlags, $wgContLang );
 						$text = wfMessage( 'blocklogentry' )
 							->rawParams( $target, $duration, $flags )->inContentLanguage()->escaped();
@@ -363,7 +367,11 @@ class LogFormatter {
 							->rawParams( $target )->inContentLanguage()->escaped();
 						break;
 					case 'reblock':
-						$duration = $wgContLang->translateBlockExpiry( $parameters['5::duration'] );
+						$duration = $wgContLang->translateBlockExpiry(
+							$parameters['5::duration'],
+							null,
+							wfTimestamp( TS_UNIX, $entry->getTimestamp() )
+						);
 						$flags = BlockLogFormatter::formatBlockFlags( $parameters['6::flags'], $wgContLang );
 						$text = wfMessage( 'reblock-logentry' )
 							->rawParams( $target, $duration, $flags )->inContentLanguage()->escaped();

languages/Language.php

@@ -3975,10 +3975,11 @@ class Language {
 	 *
 	 * @param string $str The validated block duration in English
 	 * @param User $user User object to use timezone from or null for $wgUser
+	 * @param int $now Current timestamp, for formatting relative block durations
 	 * @return string Somehow translated block duration
 	 * @see LanguageFi.php for example implementation
 	 */
-	function translateBlockExpiry( $str, User $user = null ) {
+	function translateBlockExpiry( $str, User $user = null, $now = 0 ) {
 		$duration = SpecialBlock::getSuggestedDurations( $this );
 		foreach ( $duration as $show => $value ) {
 			if ( strcmp( $str, $value ) == 0 ) {
@@ -3995,11 +3996,11 @@ class Language {
 		}
 
 		// If all else fails, return a standard duration or timestamp description.
-		$time = strtotime( $str, 0 );
+		$time = strtotime( $str, $now );
 		if ( $time === false ) { // Unknown format. Return it as-is in case.
 			return $str;
-		} elseif ( $time !== strtotime( $str, 1 ) ) { // It's a relative timestamp.
-			// $time is relative to 0 so it's a duration length.
+		} elseif ( $time !== strtotime( $str, $now + 1 ) ) { // It's a relative timestamp.
+			// The result differs based on current time, so it's a duration length.
 			return $this->formatDuration( $time );
 		} else { // It's an absolute timestamp.
 			if ( $time === 0 ) {

languages/classes/LanguageFi.php

@@ -85,9 +85,10 @@ class LanguageFi extends Language {
 	/**
 	 * @param string $str
 	 * @param User $user User object to use timezone from or null for $wgUser
+	 * @param int $now Current timestamp, for formatting relative block durations
 	 * @return string
 	 */
-	function translateBlockExpiry( $str, User $user = null ) {
+	function translateBlockExpiry( $str, User $user = null, $now = 0 ) {
 		/*
 			'ago', 'now', 'today', 'this', 'next',
 			'first', 'third', 'fourth', 'fifth', 'sixth', 'seventh', 'eighth', 'ninth',