+(* HCoop Domtool (http://hcoop.sourceforge.net/)
+ * Copyright (c) 2008, Adam Chlipala
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *)
+
+(* Tailing Apache log files (locally) that you are allowed to see *)
+
+fun hostname () =
+ let
+ val inf = TextIO.openIn "/etc/hostname"
+ in
+ case TextIO.inputLine inf of
+ NONE => (TextIO.closeIn inf; raise Fail "No line in /etc/hostname")
+ | SOME line => (TextIO.closeIn inf; String.substring (line, 0, size line - 1))
+ end
+
+fun main args =
+ let
+ val (f, args) = foldl (fn (arg, (f, args)) =>
+ case arg of
+ "-f" => (true, args)
+ | _ => (f, arg :: args))
+ (false, []) args
+ val args = rev args
+ in
+ case args of
+ [vhost] =>
+ let
+ val uid = Posix.ProcEnv.getuid ()
+ val uname = Posix.SysDB.Passwd.name (Posix.SysDB.getpwuid uid)
+
+ val proc = Unix.execute ("/usr/local/bin/domtool-admin-sudo-noisy", ["perms", uname])
+ val inf = Unix.textInstreamOf proc
+
+ fun allowed () =
+ case TextIO.inputLine inf of
+ NONE => []
+ | SOME line =>
+ case String.tokens Char.isSpace line of
+ "domain:" :: domains => domains
+ | _ => allowed ()
+
+ val domains = allowed ()
+
+ fun inDomains d = List.exists (fn s => s = d) domains
+
+ fun checker pieces =
+ case pieces of
+ [] => false
+ | _ :: pieces =>
+ inDomains (String.concatWith "." pieces)
+ orelse checker pieces
+
+ val tailArgs = ["/var/log/apache2/user/"
+ ^ String.substring (uname, 0, 1)
+ ^ "/"
+ ^ String.substring (uname, 0, 2)
+ ^ "/"
+ ^ uname
+ ^ "/apache/log/"
+ ^ hostname ()
+ ^ "/"
+ ^ vhost]
+
+ val tailArgs =
+ if f then
+ "-f" :: tailArgs
+ else
+ tailArgs
+ in
+ ignore (Unix.reap proc);
+ if inDomains vhost orelse checker (String.fields (fn ch => ch = #".") vhost) then
+ Posix.Process.exec ("/usr/bin/tail", "/usr/bin/tail" :: tailArgs)
+ else
+ (print "You're not authorized to view the logs for that vhost.\n";
+ OS.Process.exit OS.Process.failure)
+ end
+ | _ => (print "Invalid arguments\n";
+ OS.Process.exit OS.Process.failure)
+ end
+
+val () = main (CommandLine.arguments ())