Allow greater customisation of wiki links (#461)

code/controllers/configuration.dm

@@ -99,6 +99,7 @@ var/list/gamemode_cache = list()
 	var/server
 	var/banappeals
 	var/wikiurl
+	var/wikisearchurl
 	var/forumurl
 	var/githuburl
 	var/rulesurl
@@ -425,6 +426,9 @@ var/list/gamemode_cache = list()
 				if ("wikiurl")
 					config.wikiurl = value
 
+				if ("wikisearchurl")
+					config.wikisearchurl = value
+
 				if ("forumurl")
 					config.forumurl = value
 

config/example/config.txt

@@ -206,6 +206,11 @@ GUEST_BAN
 ## Wiki address
 # WIKIURL http://example.com
 
+## Wiki search path
+## Set this to whatever path your wiki uses to search for articles
+## Use %s to mark where the search query should be inserted
+# WIKISEARCHURL http://example.com/index.php?title=Special%3ASearch&search=%s
+
 ## GitHub address
 # GITHUBURL https://github.com/example-user/example-repository
 ## Ban appeals URL - usually for a forum or wherever people should go to contact your admins.

interface/interface.dm

@@ -5,8 +5,11 @@
 	set category = "OOC"
 	if(config.wikiurl)
 		if(query)
-			var/output = config.wikiurl + "/doku.php?do=search&id=" + query
+			if(config.wikisearchurl)
+				var/output = replacetext(config.wikisearchurl, "%s", url_encode(query))	
 				src << link(output)
+			else
+				src << "<span class='warning'> The wiki search URL is not set in the server configuration.</span>"
 		else
 			src << link(config.wikiurl)
 	else