Revert vandalism

doc/bugs/Anon_edit_caused_lock_out_on_entire_site_.mdwn

@@ -26,6 +26,10 @@ The `moderatedcomments` plugins is **not** enabled
 
 The `anonok` plugin is **not** enabled
 
+> What are your complete `add_plugins` and `disable_plugins` options?
+> Which version of ikiwiki are you running? Are you using any third-party
+> plugins or patches? --[[smcv]]
+
 ---
 
 ## Steps
@@ -57,3 +61,12 @@ For [this particular installation](https://dev.iikb.xyz), that's not the case.
 ## Question
 
 Is there a session file or something to logout this phantom user?
+
+> See [[tips/inside_dot_ikiwiki]]. `.ikiwiki/userdb` is a Perl Storable file;
+> there are instructions for inspecting it on that page. `.ikiwiki/sessions.db`
+> is most likely a Berkeley DB file.
+>
+> I would be interested to see the contents of these two files and the complete
+> `.setup` file. I would also be interested to see a tarball of the entire
+> wiki source directory, if it isn't excessively large. If you'd be willing to
+> share them, please contact <mailto:smcv@debian.org>. --[[smcv]]

doc/bugs/password_reset_failure.mdwn

@@ -0,0 +1,22 @@
+I can't seem to do a password reset on this wiki. I am writing this
+through the anonymous git push interface (phew for that!).
+
+I have tried three times now to reset my password through the user
+interface - my account name is [[anarcat]], and when i do the password
+reset, I get a token. I go visit the website, set a passphrase, click
+`Save Preferences` and I end up on a login form. I enter my
+passphrase, click `Login` and I get the error:
+
+    1 error(s) were encountered with your submission. Please correct the fields highlighted below.
+    
+    Name
+    [anarcat]
+    
+    Password
+    [*************] Invalid entry
+
+`Password` is highlighted.
+
+Even if I leave the password there (my cleartext password is in the
+login form by default after the password reset, which is strange), it
+still gives me that error. -- [[anarcat]]

doc/plugins/contrib/irker.mdwn

@@ -0,0 +1,128 @@
+[[!template id=plugin name=irker author="[[anarcat]]"]]
+[[!tag type/special-purpose]]
+
+This plugin will configure your wiki to send IRC notifications using the [irker](http://www.catb.org/esr/irker/) notification bot.
+
+It is fairly simple and requires no configuration but installation of the irker package. For template configuration, patches from [Debian bug #824512](https://bugs.debian.org/824512) are necessary.
+
+[[!format perl """
+package IkiWiki::Plugin::irker;
+
+use warnings;
+use strict;
+use IkiWiki 3.00;
+
+sub import {
+    hook(type => "getsetup", id => "irker", call => \&getsetup);
+    hook(type => "checkconfig", id => "branchable", call => \&checkconfig,
+         first => 1);
+    hook(type => "genwrapper", id => "irker", call => \&genwrapper,
+         last => 1);
+}
+
+sub getsetup() {
+	return
+		plugin => {
+			safe => 0,
+			rebuild => undef,
+			section => "core",
+		},
+		irker_channels => {
+			type => "string",
+			example => ['ircs://irc.example.com/example'],
+			description => "IRC channels to send notifications to",
+			safe => 1,
+			rebuild => 0,
+		},
+		irker_template => {
+			type => "string",
+			example => "'%(bold)s%(project)s:%(reset)s %(green)s%(author)s%(reset)s %(repo)s:%(yellow)s%(branch)s%(reset)s * %(bold)s%(rev)s%(reset)s / %(bold)s%(files)s%(reset)s: %(logmsg)s %(brown)s%(url)s%(reset)s",
+			description => "Template to use for messages. Only supported with patch from https://bugs.debian.org/824512",
+			safe => 1,
+			rebuild => 0,
+		},
+		irker_hook => {
+			type => "string",
+			example => "irkerhook-git",
+			description => 'Hook to setup for notifications, will look in $PATH if File::Which is available, otherwise use absolute path.',
+			safe => 1,
+			rebuild => 0,
+		},
+}
+
+sub checkconfig {
+    use URI; # ikiwiki Depends on it
+    foreach my $channel (@{$config{'irker_channels'}}) {
+        my $uri = URI->new( $channel );
+        # inspired by http://stackoverflow.com/a/2599378/1174784
+        # and http://stackoverflow.com/a/4953329/1174784
+        if (!$uri->scheme || $uri->path =~ m/^([#&]?[^\x07\x2C\s]{,200})/) {
+            error("$channel is not a valid IRC channel URI");
+        }
+    }
+    # check if hook exists
+    if (-x $config{irker_hook}) {
+        # shortcut: already configured
+        return;
+    }
+    eval q{use File::Which};
+    # check with which, i available
+    if (!$@) {
+        my $hook;
+        if (!defined $config{'irker_hook'}) {
+            $config{'irker_hook'} = 'irkerhook-git';
+        }
+        $hook = which($config{'irker_hook'});
+        if (defined $hook) {
+            $config{'irker_hook'} = $hook;
+        }
+        else {
+            error("irker hook '$config{irker_hook}' not found in PATH");
+        }
+    }
+    if (!-x $config{irker_hook}) {
+        error("irker hook '$config{irker_hook}' not executable");
+    }
+}
+
+# Parses git_wrapper to find out where the git repository is.
+# cargo-culted from branchable.pm
+sub find_git_repository {
+	if ($config{rcs} eq 'git' &&
+	    $config{git_wrapper}=~m!^(.*)/hooks/post-update$!) {
+		return $1;
+	}
+	else {
+		return undef;
+	}
+}
+
+# setup the hook symlink and git configuration
+sub genwrapper() {
+    my $repo=find_git_repository();
+    if (defined $repo && defined $config{'irker_channels'}) {
+        if (!-l $repo . '/hooks/post-receive') {
+            if (-e $repo . '/hooks/post-receive') {
+                error('post-receive hook exists and is not a symlink, failed to setup hook');
+            }
+            symlink($config{'irker_hook'}, $repo . '/hooks/post-receive') || error('failed to symlink: $!');
+        }
+        my $channels = join(",", @{$config{'irker_channels'}});
+        exec { 'git' } ('config', '-C', $repo, 'config', 'irker.channels', $channels);
+        exec { 'git' } ('config', '-C', $repo, 'config', 'irker.channels', $config{'wikiname'});
+        if ($config{'irker_template'}) {
+            exec { 'git' } ('config', '-C', $repo, 'config', 'irker.channels', $config{'irker_template'});
+        }
+    }
+    else {
+        exec { 'git' } ('config', '-C', $repo, 'config', '--remove-section', 'irker');
+        if (-l $repo . '/hooks/post-receive' && 
+            readlink($repo . '/hooks/post-receive') =~ m/irkerhook/) {
+            unlink($repo . '/hooks/post-receive');
+        }
+    }
+    return "";
+}
+
+1
+"""]]

doc/tips/monitor_page_changes_through_IRC.mdwn

@@ -17,6 +17,6 @@ there are basically two alternatives now:
 * [KGB](https://kgb.alioth.debian.org/) - a Perl script that has been running at Debian since 2009
 * [irker](http://www.catb.org/esr/irker/) - a Python script whipped up by ESR in the fall of CIA.vc (~2011), ignoring the existing KGB bot
 
-KGB is harder to setup ([tutorial](https://www.donarmstrong.com/posts/switching_to_kgb/)), as it , but more reliable than irker, in my experience. --[[anarcat]]
+KGB is harder to setup ([tutorial](https://www.donarmstrong.com/posts/switching_to_kgb/)), as it , but more reliable than irker, in my experience. I built the [[plugins/contrib/irker]] plugin to automatically configure notifications with irker. --[[anarcat]]
 
 See also [[todo/ikibot]] for another bot idea.