version 1.522, 2016/05/30 03:16:38
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version 1.528, 2016/09/21 05:39:53
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Line 15
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Line 15
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# |
# |
# LON-CAPA is distributed in the hope that it will be useful, |
# LON-CAPA is distributed in the hope that it will be useful, |
# but WITHOUT ANY WARRANTY; without even the implied warranty of |
# but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
# GNU General Public License for more details. |
# GNU General Public License for more details. |
# |
# |
Line 41 use IO::File;
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Line 40 use IO::File;
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#use Apache::File; |
#use Apache::File; |
use POSIX; |
use POSIX; |
use Crypt::IDEA; |
use Crypt::IDEA; |
use LWP::UserAgent(); |
use HTTP::Request; |
use Digest::MD5 qw(md5_hex); |
use Digest::MD5 qw(md5_hex); |
use GDBM_File; |
use GDBM_File; |
use Authen::Krb5; |
use Authen::Krb5; |
Line 58 use Mail::Send;
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Line 57 use Mail::Send;
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use Crypt::Eksblowfish::Bcrypt; |
use Crypt::Eksblowfish::Bcrypt; |
use Digest::SHA; |
use Digest::SHA; |
use Encode; |
use Encode; |
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use LONCAPA::LWPReq; |
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my $DEBUG = 0; # Non zero to enable debug log entries. |
my $DEBUG = 0; # Non zero to enable debug log entries. |
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Line 74 my $clientip; # IP address of client.
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Line 74 my $clientip; # IP address of client.
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my $clientname; # LonCAPA name of client. |
my $clientname; # LonCAPA name of client. |
my $clientversion; # LonCAPA version running on client. |
my $clientversion; # LonCAPA version running on client. |
my $clienthomedom; # LonCAPA domain of homeID for client. |
my $clienthomedom; # LonCAPA domain of homeID for client. |
# primary library server. |
my $clientintdom; # LonCAPA "internet domain" for client. |
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my $clientsameinst; # LonCAPA "internet domain" same for |
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# this host and client. |
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my $clientremoteok; # Client allowed to host domain's users. |
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# (version constraints ignored), not set |
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# if this host and client share "internet domain". |
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my %clientprohibited; # Actions prohibited on client; |
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my $server; |
my $server; |
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my $keymode; |
my $keymode; |
Line 145 my @installerrors = ("ok",
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Line 151 my @installerrors = ("ok",
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); |
); |
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# |
# |
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# The %trust hash classifies commands according to type of trust |
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# required for execution of the command. |
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# |
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# When clients from a different institution request execution of a |
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# particular command, the trust settings for that institution set |
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# for this domain (or default domain for a multi-domain server) will |
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# be checked to see if running the command is allowed. |
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# |
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# Trust types which depend on the "Trust" domain configuration |
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# for the machine's default domain are: |
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# |
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# content ("Access to this domain's content by others") |
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# shared ("Access to other domain's content by this domain") |
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# enroll ("Enrollment in this domain's courses by others") |
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# coaurem ("Co-author roles for this domain's users elsewhere") |
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# domroles ("Domain roles in this domain assignable to others") |
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# catalog ("Course Catalog for this domain displayed elsewhere") |
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# reqcrs ("Requests for creation of courses in this domain by others") |
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# msg ("Users in other domains can send messages to this domain") |
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# |
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# Trust type which depends on the User Session Hosting (remote) |
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# domain configuration for machine's default domain is: "remote". |
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# |
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# Trust types which depend on contents of manager.tab in |
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# /home/httpd/lonTabs is: "manageronly". |
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# |
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# Trust type which requires client to share the same LON-CAPA |
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# "internet domain" (i.e., same institution as this server) is: |
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# "institutiononly". |
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# |
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my %trust = ( |
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auth => {remote => 1}, |
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autocreatepassword => {remote => 1}, |
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autocrsreqchecks => {remote => 1, reqcrs => 1}, |
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autocrsrequpdate => {remote => 1}, |
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autocrsreqvalidation => {remote => 1}, |
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autogetsections => {remote => 1}, |
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autoinstcodedefaults => {remote => 1, catalog => 1}, |
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autoinstcodeformat => {remote => 1, catalog => 1}, |
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autonewcourse => {remote => 1, reqcrs => 1}, |
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autophotocheck => {remote => 1, enroll => 1}, |
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autophotochoice => {remote => 1}, |
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autophotopermission => {remote => 1, enroll => 1}, |
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autopossibleinstcodes => {remote => 1, reqcrs => 1}, |
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autoretrieve => {remote => 1, enroll => 1, catalog => 1}, |
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autorun => {remote => 1, enroll => 1, reqcrs => 1}, |
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autovalidateclass_sec => {catalog => 1}, |
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autovalidatecourse => {remote => 1, enroll => 1}, |
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autovalidateinstcode => {domroles => 1, remote => 1, enroll => 1}, |
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changeuserauth => {remote => 1, domroles => 1}, |
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chatretr => {remote => 1, enroll => 1}, |
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chatsend => {remote => 1, enroll => 1}, |
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courseiddump => {remote => 1, domroles => 1, enroll => 1}, |
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courseidput => {remote => 1, domroles => 1, enroll => 1}, |
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courseidputhash => {remote => 1, domroles => 1, enroll => 1}, |
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courselastaccess => {remote => 1, domroles => 1, enroll => 1}, |
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currentauth => {remote => 1, domroles => 1, enroll => 1}, |
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currentdump => {remote => 1, enroll => 1}, |
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currentversion => {remote=> 1, content => 1}, |
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dcmaildump => {remote => 1, domroles => 1}, |
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dcmailput => {remote => 1, domroles => 1}, |
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del => {remote => 1, domroles => 1, enroll => 1, content => 1}, |
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deldom => {remote => 1, domroles => 1}, # not currently used |
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devalidatecache => {institutiononly => 1}, |
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domroleput => {remote => 1, enroll => 1}, |
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domrolesdump => {remote => 1, catalog => 1}, |
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du => {remote => 1, enroll => 1}, |
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du2 => {remote => 1, enroll => 1}, |
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dump => {remote => 1, enroll => 1, domroles => 1}, |
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edit => {institutiononly => 1}, #not used currently |
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eget => {remote => 1, domroles => 1, enroll => 1}, #not used currently |
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ekey => {}, #not used currently |
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exit => {anywhere => 1}, |
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fetchuserfile => {remote => 1, enroll => 1}, |
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get => {remote => 1, domroles => 1, enroll => 1}, |
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getdom => {anywhere => 1}, |
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home => {anywhere => 1}, |
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iddel => {remote => 1, enroll => 1}, |
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idget => {remote => 1, enroll => 1}, |
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idput => {remote => 1, domroles => 1, enroll => 1}, |
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inc => {remote => 1, enroll => 1}, |
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init => {anywhere => 1}, |
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inst_usertypes => {remote => 1, domroles => 1, enroll => 1}, |
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instemailrules => {remote => 1, domroles => 1}, |
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instidrulecheck => {remote => 1, domroles => 1,}, |
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instidrules => {remote => 1, domroles => 1,}, |
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instrulecheck => {remote => 1, enroll => 1, reqcrs => 1, domroles => 1}, |
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instselfcreatecheck => {institutiononly => 1}, |
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instuserrules => {remote => 1, enroll => 1, reqcrs => 1, domroles => 1}, |
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keys => {remote => 1,}, |
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load => {anywhere => 1}, |
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log => {anywhere => 1}, |
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ls => {remote => 1, enroll => 1, content => 1,}, |
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ls2 => {remote => 1, enroll => 1, content => 1,}, |
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ls3 => {remote => 1, enroll => 1, content => 1,}, |
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makeuser => {remote => 1, enroll => 1, domroles => 1,}, |
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mkdiruserfile => {remote => 1, enroll => 1,}, |
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newput => {remote => 1, enroll => 1, reqcrs => 1, domroles => 1,}, |
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passwd => {remote => 1}, |
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ping => {anywhere => 1}, |
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pong => {anywhere => 1}, |
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pushfile => {manageronly => 1}, |
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put => {remote => 1, enroll => 1, domroles => 1, msg => 1, content => 1, shared => 1}, |
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putdom => {remote => 1, domroles => 1,}, |
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putstore => {remote => 1, enroll => 1}, |
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queryreply => {anywhere => 1}, |
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querysend => {anywhere => 1}, |
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quit => {anywhere => 1}, |
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readlonnetglobal => {institutiononly => 1}, |
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reinit => {manageronly => 1}, #not used currently |
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removeuserfile => {remote => 1, enroll => 1}, |
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renameuserfile => {remote => 1,}, |
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restore => {remote => 1, enroll => 1, reqcrs => 1,}, |
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rolesdel => {remote => 1, enroll => 1, domroles => 1, coaurem => 1}, |
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rolesput => {remote => 1, enroll => 1, domroles => 1, coaurem => 1}, |
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servercerts => {institutiononly => 1}, |
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serverdistarch => {anywhere => 1}, |
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serverhomeID => {anywhere => 1}, |
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serverloncaparev => {anywhere => 1}, |
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servertimezone => {remote => 1, enroll => 1}, |
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setannounce => {remote => 1, domroles => 1}, |
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sethost => {anywhere => 1}, |
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store => {remote => 1, enroll => 1, reqcrs => 1,}, |
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studentphoto => {remote => 1, enroll => 1}, |
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sub => {content => 1,}, |
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tmpdel => {anywhere => 1}, |
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tmpget => {anywhere => 1}, |
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tmpput => {anywhere => 1}, |
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tokenauthuserfile => {anywhere => 1}, |
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unsub => {content => 1,}, |
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update => {shared => 1}, |
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updateclickers => {remote => 1}, |
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userhassession => {anywhere => 1}, |
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userload => {anywhere => 1}, |
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version => {anywhere => 1}, #not used |
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); |
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# |
# Statistics that are maintained and dislayed in the status line. |
# Statistics that are maintained and dislayed in the status line. |
# |
# |
my $Transactions = 0; # Number of attempted transactions. |
my $Transactions = 0; # Number of attempted transactions. |
Line 667 sub PushFile {
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Line 812 sub PushFile {
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$clientprotocol = 'http' if ($clientprotocol ne 'https'); |
$clientprotocol = 'http' if ($clientprotocol ne 'https'); |
my $url = '/adm/'.$filename; |
my $url = '/adm/'.$filename; |
$url =~ s{_}{/}; |
$url =~ s{_}{/}; |
my $ua=new LWP::UserAgent; |
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$ua->timeout(60); |
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my $request=new HTTP::Request('GET',"$clientprotocol://$clienthost$url"); |
my $request=new HTTP::Request('GET',"$clientprotocol://$clienthost$url"); |
my $response=$ua->request($request); |
my $response = LONCAPA::LWPReq::makerequest($clientname,$request,'',\%perlvar,60,0); |
if ($response->is_error()) { |
if ($response->is_error()) { |
&logthis('<font color="red"> Pushfile: unable to install ' |
&logthis('<font color="red"> Pushfile: unable to install ' |
.$tablefile." - error attempting to pull data. </font>"); |
.$tablefile." - error attempting to pull data. </font>"); |
Line 1797 sub server_distarch_handler {
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Line 1940 sub server_distarch_handler {
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} |
} |
®ister_handler("serverdistarch", \&server_distarch_handler, 0, 1, 0); |
®ister_handler("serverdistarch", \&server_distarch_handler, 0, 1, 0); |
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sub server_certs_handler { |
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my ($cmd,$tail,$client) = @_; |
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my $userinput = "$cmd:$tail"; |
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my $result; |
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my $result = &LONCAPA::Lond::server_certs(\%perlvar); |
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&Reply($client,\$result,$userinput); |
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return; |
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} |
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®ister_handler("servercerts", \&server_certs_handler, 0, 1, 0); |
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# Process a reinit request. Reinit requests that either |
# Process a reinit request. Reinit requests that either |
# lonc or lond be reinitialized so that an updated |
# lonc or lond be reinitialized so that an updated |
# host.tab or domain.tab can be processed. |
# host.tab or domain.tab can be processed. |
Line 1929 sub authenticate_handler {
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Line 2082 sub authenticate_handler {
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my ($remote,$hosted); |
my ($remote,$hosted); |
my $remotesession = &get_usersession_config($udom,'remotesession'); |
my $remotesession = &get_usersession_config($udom,'remotesession'); |
if (ref($remotesession) eq 'HASH') { |
if (ref($remotesession) eq 'HASH') { |
$remote = $remotesession->{'remote'} |
$remote = $remotesession->{'remote'}; |
} |
} |
my $hostedsession = &get_usersession_config($clienthomedom,'hostedsession'); |
my $hostedsession = &get_usersession_config($clienthomedom,'hostedsession'); |
if (ref($hostedsession) eq 'HASH') { |
if (ref($hostedsession) eq 'HASH') { |
Line 2331 sub update_resource_handler {
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Line 2484 sub update_resource_handler {
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# FIXME: this should use the LWP mechanism, not internal alarms. |
# FIXME: this should use the LWP mechanism, not internal alarms. |
alarm(1200); |
alarm(1200); |
{ |
{ |
my $ua=new LWP::UserAgent; |
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my $request=new HTTP::Request('GET',"$remoteurl"); |
my $request=new HTTP::Request('GET',"$remoteurl"); |
$response=$ua->request($request,$transname); |
$response=&LONCAPA::LWPReq::makerequest($clientname,$request,$transname,\%perlvar,1200,0,1); |
} |
} |
alarm(0); |
alarm(0); |
if ($response->is_error()) { |
if ($response->is_error()) { |
Line 2346 sub update_resource_handler {
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Line 2498 sub update_resource_handler {
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# FIXME: isn't there an internal LWP mechanism for this? |
# FIXME: isn't there an internal LWP mechanism for this? |
alarm(120); |
alarm(120); |
{ |
{ |
my $ua=new LWP::UserAgent; |
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my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta'); |
my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta'); |
my $mresponse=$ua->request($mrequest,$fname.'.meta'); |
my $mresponse = &LONCAPA::LWPReq::makerequest($clientname,$mrequest,$fname.'.meta',\%perlvar,120,0,1); |
if ($mresponse->is_error()) { |
if ($mresponse->is_error()) { |
unlink($fname.'.meta'); |
unlink($fname.'.meta'); |
} |
} |
Line 2423 sub fetch_user_file_handler {
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Line 2574 sub fetch_user_file_handler {
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my $remoteurl=$clientprotocol.'://'.$clienthost.'/userfiles/'.$fname; |
my $remoteurl=$clientprotocol.'://'.$clienthost.'/userfiles/'.$fname; |
my $response; |
my $response; |
Debug("Remote URL : $remoteurl Transfername $transname Destname: $destname"); |
Debug("Remote URL : $remoteurl Transfername $transname Destname: $destname"); |
alarm(120); |
alarm(1200); |
{ |
{ |
my $ua=new LWP::UserAgent; |
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my $request=new HTTP::Request('GET',"$remoteurl"); |
my $request=new HTTP::Request('GET',"$remoteurl"); |
$response=$ua->request($request,$transname); |
my $verifycert = 1; |
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my @machine_ids = &Apache::lonnet::current_machine_ids(); |
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if (grep(/^\Q$clientname\E$/,@machine_ids)) { |
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$verifycert = 0; |
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} |
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$response = &LONCAPA::LWPReq::makerequest($clientname,$request,$transname,\%perlvar,1200,$verifycert); |
} |
} |
alarm(0); |
alarm(0); |
if ($response->is_error()) { |
if ($response->is_error()) { |
Line 5513 sub auto_export_grades_handler {
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Line 5668 sub auto_export_grades_handler {
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# $cmd - The command that got us dispatched. |
# $cmd - The command that got us dispatched. |
# $tail - The tail of the command. In our case this is a colon |
# $tail - The tail of the command. In our case this is a colon |
# separated list that will be split into: |
# separated list that will be split into: |
# $filename - The name of the file to remove. |
# $filename - The name of the file to retrieve. |
# The filename is given as a path relative to |
# The filename is given as a path relative to |
# the LonCAPA temp file directory. |
# the LonCAPA temp file directory. |
# $client - Socket open on the client. |
# $client - Socket open on the client. |
Line 5530 sub retrieve_auto_file_handler {
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Line 5685 sub retrieve_auto_file_handler {
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if ($filename =~m{/\.\./}) { |
if ($filename =~m{/\.\./}) { |
&Failure($client, "refused\n", $userinput); |
&Failure($client, "refused\n", $userinput); |
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} elsif ($filename !~ /^$LONCAPA::match_domain\_$LONCAPA::match_courseid\_.+_classlist\.xml$/) { |
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&Failure($client, "refused\n", $userinput); |
} elsif ( (-e $source) && ($filename ne '') ) { |
} elsif ( (-e $source) && ($filename ne '') ) { |
my $reply = ''; |
my $reply = ''; |
if (open(my $fh,$source)) { |
if (open(my $fh,$source)) { |
Line 6167 sub get_request {
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Line 6324 sub get_request {
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# |
# |
# Parameters: |
# Parameters: |
# user_input - The request received from the client (lonc). |
# user_input - The request received from the client (lonc). |
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# |
# Returns: |
# Returns: |
# true to keep processing, false if caller should exit. |
# true to keep processing, false if caller should exit. |
# |
# |
sub process_request { |
sub process_request { |
my ($userinput) = @_; # Easier for now to break style than to |
my ($userinput) = @_; # Easier for now to break style than to |
# fix all the userinput -> user_input. |
# fix all the userinput -> user_input. |
my $wasenc = 0; # True if request was encrypted. |
my $wasenc = 0; # True if request was encrypted. |
# ------------------------------------------------------------ See if encrypted |
# ------------------------------------------------------------ See if encrypted |
# for command |
# for command |
Line 6252 sub process_request {
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Line 6410 sub process_request {
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Debug("Client not privileged to do this operation"); |
Debug("Client not privileged to do this operation"); |
$ok = 0; |
$ok = 0; |
} |
} |
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if ($ok) { |
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if (ref($trust{$command}) eq 'HASH') { |
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my $donechecks; |
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if ($trust{$command}{'anywhere'}) { |
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$donechecks = 1; |
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} elsif ($trust{$command}{'manageronly'}) { |
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unless (&isManager()) { |
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$ok = 0; |
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} |
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$donechecks = 1; |
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} elsif ($trust{$command}{'institutiononly'}) { |
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unless ($clientsameinst) { |
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$ok = 0; |
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} |
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$donechecks = 1; |
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} elsif ($clientsameinst) { |
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$donechecks = 1; |
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} |
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unless ($donechecks) { |
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foreach my $rule (keys(%{$trust{$command}})) { |
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next if ($rule eq 'remote'); |
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if ($trust{$command}{$rule}) { |
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if ($clientprohibited{$rule}) { |
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$ok = 0; |
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} else { |
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$ok = 1; |
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$donechecks = 1; |
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last; |
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} |
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} |
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} |
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} |
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unless ($donechecks) { |
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if ($trust{$command}{'remote'}) { |
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if ($clientremoteok) { |
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$ok = 1; |
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} else { |
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$ok = 0; |
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} |
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} |
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} |
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} |
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} |
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if($ok) { |
if($ok) { |
Debug("Dispatching to handler $command $tail"); |
Debug("Dispatching to handler $command $tail"); |
Line 6262 sub process_request {
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Line 6463 sub process_request {
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Failure($client, "refused\n", $userinput); |
Failure($client, "refused\n", $userinput); |
return 1; |
return 1; |
} |
} |
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} |
} |
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print $client "unknown_cmd\n"; |
print $client "unknown_cmd\n"; |
# -------------------------------------------------------------------- complete |
# -------------------------------------------------------------------- complete |
Line 7020 sub make_new_child {
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Line 7220 sub make_new_child {
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my $clienthost = &Apache::lonnet::hostname($clientname); |
my $clienthost = &Apache::lonnet::hostname($clientname); |
my $clientserverhomeID = &Apache::lonnet::get_server_homeID($clienthost); |
my $clientserverhomeID = &Apache::lonnet::get_server_homeID($clienthost); |
$clienthomedom = &Apache::lonnet::host_domain($clientserverhomeID); |
$clienthomedom = &Apache::lonnet::host_domain($clientserverhomeID); |
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$clientintdom = &Apache::lonnet::internet_dom($clientserverhomeID); |
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$clientsameinst = 0; |
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if ($clientintdom ne '') { |
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my $internet_names = &Apache::lonnet::get_internet_names($currenthostid); |
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if (ref($internet_names) eq 'ARRAY') { |
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if (grep(/^\Q$clientintdom\E$/,@{$internet_names})) { |
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$clientsameinst = 1; |
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} |
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} |
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} |
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$clientremoteok = 0; |
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unless ($clientsameinst) { |
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$clientremoteok = 1; |
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my $defdom = &Apache::lonnet::host_domain($perlvar{'lonHostID'}); |
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%clientprohibited = &get_prohibited($defdom); |
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if ($clientintdom) { |
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my $remsessconf = &get_usersession_config($defdom,'remotesession'); |
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if (ref($remsessconf) eq 'HASH') { |
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if (ref($remsessconf->{'remote'}) eq 'HASH') { |
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if (ref($remsessconf->{'remote'}->{'excludedomain'}) eq 'ARRAY') { |
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if (grep(/^\Q$clientintdom\E$/,@{$remsessconf->{'remote'}->{'excludedomain'}})) { |
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$clientremoteok = 0; |
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} |
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} |
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if (ref($remsessconf->{'remote'}->{'includedomain'}) eq 'ARRAY') { |
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if (grep(/^\Q$clientintdom\E$/,@{$remsessconf->{'remote'}->{'includedomain'}})) { |
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$clientremoteok = 1; |
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} else { |
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$clientremoteok = 0; |
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} |
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} |
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} |
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} |
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} |
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} |
while(($user_input = get_request) && $keep_going) { |
while(($user_input = get_request) && $keep_going) { |
alarm(120); |
alarm(120); |
Debug("Main: Got $user_input\n"); |
Debug("Main: Got $user_input\n"); |
Line 7035 sub make_new_child {
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Line 7270 sub make_new_child {
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&logthis("<font color='blue'>WARNING: " |
&logthis("<font color='blue'>WARNING: " |
."Rejected client $clientip, closing connection</font>"); |
."Rejected client $clientip, closing connection</font>"); |
} |
} |
} |
} |
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# ============================================================================= |
# ============================================================================= |
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Line 7715 sub make_passwd_file {
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Line 7950 sub make_passwd_file {
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my $pf = IO::File->new(">$passfilename"); |
my $pf = IO::File->new(">$passfilename"); |
if($pf) { |
if($pf) { |
print $pf "localauth:$npass\n"; |
print $pf "localauth:$npass\n"; |
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&update_passwd_history($uname,$udom,$umode,$action); |
} else { |
} else { |
$result = "pass_file_failed_error"; |
$result = "pass_file_failed_error"; |
} |
} |
Line 7777 sub get_usersession_config {
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Line 8013 sub get_usersession_config {
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return $usersessionconf; |
return $usersessionconf; |
} else { |
} else { |
my %domconfig = &Apache::lonnet::get_dom('configuration',['usersessions'],$dom); |
my %domconfig = &Apache::lonnet::get_dom('configuration',['usersessions'],$dom); |
if (ref($domconfig{'usersessions'}) eq 'HASH') { |
&Apache::lonnet::do_cache_new($name,$dom,$domconfig{'usersessions'},3600); |
&Apache::lonnet::do_cache_new($name,$dom,$domconfig{'usersessions'},3600); |
return $domconfig{'usersessions'}; |
return $domconfig{'usersessions'}; |
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} |
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} |
} |
return; |
return; |
} |
} |
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sub get_prohibited { |
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my ($dom) = @_; |
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my $name = 'trust'; |
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my ($trustconfig,$cached)=&Apache::lonnet::is_cached_new($name,$dom); |
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unless (defined($cached)) { |
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my %domconfig = &Apache::lonnet::get_dom('configuration',['trust'],$dom); |
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&Apache::lonnet::do_cache_new($name,$dom,$domconfig{'trust'},3600); |
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$trustconfig = $domconfig{'trust'}; |
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} |
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my %prohibited; |
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if (ref($trustconfig)) { |
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foreach my $prefix (keys(%{$trustconfig})) { |
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if (ref($trustconfig->{$prefix}) eq 'HASH') { |
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my $reject; |
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if (ref($trustconfig->{$prefix}->{'exc'}) eq 'ARRAY') { |
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if (grep(/^\Q$clientintdom\E$/,@{$trustconfig->{$prefix}->{'exc'}})) { |
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$reject = 1; |
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} |
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} |
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if (ref($trustconfig->{$prefix}->{'inc'}) eq 'ARRAY') { |
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if (grep(/^\Q$clientintdom\E$/,@{$trustconfig->{$prefix}->{'inc'}})) { |
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$reject = 0; |
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} else { |
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$reject = 1; |
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} |
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} |
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if ($reject) { |
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$prohibited{$prefix} = 1; |
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} |
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} |
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} |
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} |
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return %prohibited; |
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} |
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sub distro_and_arch { |
sub distro_and_arch { |
return $dist.':'.$arch; |
return $dist.':'.$arch; |