From 5aea96df5a7b55fe1be74dcc5259508b05d89577 Mon Sep 17 00:00:00 2001
From: RazeSoldier <liguangjie4399@hotmail.com>
Date: Fri, 29 Dec 2017 22:03:55 +0800
Subject: [PATCH] Display the file sha1 value in the file info page

When a visitor accesses an info page of an existing file, base-36 sha1 value of this file will displayed in the table of basic information.

Bug: T181651
Change-Id: Ib8cae3e4070a186e28e8625556d3c510af0701c2
---
 includes/actions/InfoAction.php | 12 ++++++++++++
 languages/i18n/en.json          |  1 +
 languages/i18n/qqq.json         |  1 +
 3 files changed, 14 insertions(+)

diff --git a/includes/actions/InfoAction.php b/includes/actions/InfoAction.php
index 62f7ddfc1a..a8a8317fbc 100644
--- a/includes/actions/InfoAction.php
+++ b/includes/actions/InfoAction.php
@@ -437,6 +437,18 @@ class InfoAction extends FormlessAction {
 			];
 		}
 
+		// Display image SHA-1 value
+		if ( $title->inNamespace( NS_FILE ) ) {
+			$fileObj = wfFindFile( $title );
+			if ( $fileObj !== false ) {
+				$output = $fileObj->getSha1();
+				$pageInfo['header-basic'][] = [
+					$this->msg( 'pageinfo-file-hash' ),
+					$output
+				];
+			}
+		}
+
 		// Page protection
 		$pageInfo['header-restrictions'] = [];
 
diff --git a/languages/i18n/en.json b/languages/i18n/en.json
index 18c546db9b..5e206ef6df 100644
--- a/languages/i18n/en.json
+++ b/languages/i18n/en.json
@@ -3055,6 +3055,7 @@
 	"pageinfo-category-subcats": "Number of subcategories",
 	"pageinfo-category-files": "Number of files",
 	"pageinfo-user-id": "User ID",
+	"pageinfo-file-hash": "Hash value",
 	"markaspatrolleddiff": "Mark as patrolled",
 	"markaspatrolledlink": "[$1]",
 	"markaspatrolledtext": "Mark this page as patrolled",
diff --git a/languages/i18n/qqq.json b/languages/i18n/qqq.json
index 0659453915..30df1bd6b5 100644
--- a/languages/i18n/qqq.json
+++ b/languages/i18n/qqq.json
@@ -3250,6 +3250,7 @@
 	"pageinfo-category-subcats": "See also:\n* {{msg-mw|Pageinfo-category-pages}}\n* {{msg-mw|Pageinfo-category-files}}",
 	"pageinfo-category-files": "See also:\n* {{msg-mw|Pageinfo-category-pages}}\n* {{msg-mw|Pageinfo-category-subcats}}",
 	"pageinfo-user-id": "The numeric ID for a user\n{{Identical|User ID}}",
+	"pageinfo-file-hash": "Base-36 SHA-1 value of the file",
 	"markaspatrolleddiff": "{{doc-actionlink}}\nSee also:\n* {{msg-mw|Markaspatrolledtext}}\n{{Identical|Mark as patrolled}}",
 	"markaspatrolledlink": "{{notranslate}}\nParameters:\n* $1 - link which has text {{msg-mw|Markaspatrolledtext}}",
 	"markaspatrolledtext": "{{doc-actionlink}}\nSee also:\n* {{msg-mw|Markaspatrolleddiff}}",
-- 
2.20.1