1#!/usr/bin/perl 2package IkiWiki::Receive; 3 4use warnings; 5use strict; 6use IkiWiki; 7 8sub getuser () { 9 my $user=(getpwuid(exists $ENV{CALLER_UID} ? $ENV{CALLER_UID} : $<))[0]; 10 if (! defined $user) { 11 error("cannot determine username for $<"); 12 } 13 return $user; 14} 15 16sub trusted () { 17 my $user=getuser(); 18 return ! ref $config{untrusted_committers} || 19 ! grep { $_ eq $user } @{$config{untrusted_committers}}; 20} 21 22sub genwrapper () { 23 # Test for commits from untrusted committers in the wrapper, to 24 # avoid starting ikiwiki proper at all for trusted commits. 25 26 my $ret=<<"EOF"; 27 { 28 int u=getuid(); 29 /* 3 characters per byte is certainly enough */ 30 char uid_string[sizeof(u) * 3 + 1]; 31EOF 32 $ret.="\t\tif ( ". 33 join("&&", map { 34 my $uid=getpwnam($_); 35 if (! defined $uid) { 36 error(sprintf(gettext("cannot determine id of untrusted committer %s"), $_)); 37 } 38 "u != $uid"; 39 } @{$config{untrusted_committers}}). 40 ") {\n"; 41 42 43 $ret.=<<"EOF"; 44 /* Trusted user. 45 * Consume all stdin before exiting, as git may 46 * otherwise be unhappy. */ 47 char buf[256]; 48 while (read(0, &buf, 256) != 0) {} 49 exit(0); 50 } 51 snprintf(uid_string, sizeof(uid_string), "%i", u); 52 addenv("CALLER_UID", uid_string); 53 } 54EOF 55 return $ret; 56} 57 58sub test () { 59 exit 0 if trusted(); 60 61 IkiWiki::lockwiki(); 62 IkiWiki::loadindex(); 63 64 # Dummy up a cgi environment to use when calling check_canedit 65 # and friends. 66 eval q{use CGI}; 67 error($@) if $@; 68 my $cgi=CGI->new; 69 70 # And dummy up a session object. 71 require IkiWiki::CGI; 72 my $session=IkiWiki::cgi_getsession($cgi); 73 $session->param("name", getuser()); 74 # Make sure whatever user was authed is in the 75 # userinfo db. 76 require IkiWiki::UserInfo; 77 if (! IkiWiki::userinfo_get($session->param("name"), "regdate")) { 78 IkiWiki::userinfo_setall($session->param("name"), { 79 email => "", 80 password => "", 81 regdate => time, 82 }) || error("failed adding user"); 83 } 84 85 IkiWiki::check_canchange( 86 cgi => $cgi, 87 session => $session, 88 changes => [IkiWiki::rcs_receive()] 89 ); 90 exit 0; 91} 92 931 94