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Move PreconditionFailed and MalformedRequest into $request methods.

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This commit is contained in:
Andrew McMillan 2010-03-07 20:58:31 +13:00
parent b1919850a1
commit 606e7d6338
2 changed files with 41 additions and 30 deletions
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29
inc/CalDAVRequest.php
View File

@ -1052,6 +1052,35 @@ EOSQL;
}
/**
* Send an error response for a failed precondition.
*
* @param int $status The status code for the failed precondition. Normally 403
* @param string $precondition The namespaced precondition tag.
* @param string $explanation An optional text explanation for the failure.
*/
function PreconditionFailed( $status, $precondition, $explanation = '') {
$xmldoc = sprintf('<?xml version="1.0" encoding="utf-8" ?>
<error xmlns="DAV:">
<%s/>%s
</error>', $precondition, $explanation );
$request->DoResponse( $status, $xmldoc, 'text/xml; charset="utf-8"' );
exit(0); // Unecessary, but might clarify things
}
/**
* Send a simple error informing the client that was a malformed request
*
* @param string $text An optional text description of the failure.
*/
function MalformedRequest( $text = 'Bad request' ) {
$this->DoResponse( 400, $text );
exit(0); // Unecessary, but might clarify things
}
/**
* Send an XML Response. This function will never return.
*

42
inc/caldav-ACL.php
View File

@ -88,24 +88,6 @@ $resource = new DAVResource( $request->path );
would allow unauthenticated access to resources.
*/
function precondition_failed($precondition, $explanation = '') {
global $request;
$xmldoc = sprintf('<?xml version="1.0" encoding="utf-8" ?>
<error xmlns="DAV:">
<%s/>%s
</error>', $precondition, $explanation );
$request->DoResponse( 403, $xmldoc, 'text/xml; charset="utf-8"' );
exit(0); // Unecessary, but might clarify things
}
function malformed_request( $text = 'Bad request' ) {
global $request;
$request->DoResponse( 400, $text );
exit(0); // Unecessary, but might clarify things
}
$position = 0;
$xmltree = BuildXMLTree( $request->xml_tags, $position);
$aces = $xmltree->GetPath("/DAV::acl/*");
@ -116,7 +98,7 @@ $by_principal = null;
$by_collection = null;
if ( $grantor->IsPrincipal() ) $by_principal = $grantor->GetProperty('principal_id');
else if ( $grantor->IsCollection() ) $by_collection = $grantor->GetProperty('collection_id');
else precondition_failed('not-supported-privilege','ACLs may only be applied to Principals or Collections');
else $request->PreconditionFailed(403,'not-supported-privilege','ACLs may only be applied to Principals or Collections');
$qry = new AwlQuery('BEGIN');
$qry->Exec('ACL',__LINE__,__FILE__);
@ -125,11 +107,11 @@ foreach( $aces AS $k => $ace ) {
$elements = $ace->GetContent();
$principal = $elements[0];
$grant = $elements[1];
if ( $principal->GetTag() != 'DAV::principal' ) malformed_request('ACL request must contain a principal, not '.$principal->GetTag());
if ( $principal->GetTag() != 'DAV::principal' ) $request->MalformedRequest('ACL request must contain a principal, not '.$principal->GetTag());
$grant_tag = $grant->GetTag();
if ( $grant_tag == 'DAV::deny' ) precondition_failed('grant-only');
if ( $grant_tag == 'DAV::invert' ) precondition_failed('no-invert');
if ( $grant->GetTag() != 'DAV::grant' ) malformed_request('ACL request must contain a principal for each ACE');
if ( $grant_tag == 'DAV::deny' ) $request->PreconditionFailed(403,'grant-only');
if ( $grant_tag == 'DAV::invert' ) $request->PreconditionFailed(403,'no-invert');
if ( $grant->GetTag() != 'DAV::grant' ) $request->MalformedRequest('ACL request must contain a principal for each ACE');
$privilege_names = array();
$xml_privs = $grant->GetPath("/DAV::grant/DAV::privilege/*");
@ -139,27 +121,27 @@ foreach( $aces AS $k => $ace ) {
$privileges = privilege_to_bits($privilege_names);
$principal_content = $principal->GetContent();
if ( count($principal_content) != 1 ) malformed_request('ACL request must contain exactly one principal per ACE');
if ( count($principal_content) != 1 ) $request->MalformedRequest('ACL request must contain exactly one principal per ACE');
$principal_content = $principal_content[0];
switch( $principal_content->GetTag() ) {
case 'DAV::property':
$principal_property = $principal_content->GetContent();
if ( $principal_property[0]->GetTag() != 'DAV::owner' ) precondition_failed( 'recognized-principal' );
if ( $principal_property[0]->GetTag() != 'DAV::owner' ) $request->PreconditionFailed(403, 'recognized-principal' );
if ( privilege_to_bits('all') != $privileges ) {
precondition_failed( 'no-protected-ace-conflict', 'Owner must always have all permissions' );
$request->PreconditionFailed(403, 'no-protected-ace-conflict', 'Owner must always have all permissions' );
}
continue; // and then we ignore it, since it's protected
break;
case 'DAV::unauthenticated':
precondition_failed( 'allowed-principal', 'May not set privileges for unauthenticated users' );
$request->PreconditionFailed(403, 'allowed-principal', 'May not set privileges for unauthenticated users' );
break;
case 'DAV::href':
$principal_type = 'href';
$principal = new DAVResource( DeconstructURL($principal_content->GetContent()) );
if ( ! $principal->Exists() || !$principal->IsPrincipal() )
precondition_failed('recognized-principal', 'Principal "' + $principal_content->GetContent() + '" not found.');
$request->PreconditionFailed(403,'recognized-principal', 'Principal "' + $principal_content->GetContent() + '" not found.');
$sqlparms = array( ':to_principal' => $principal->GetProperty('principal_id') );
$where = 'WHERE to_principal=:to_principal AND ';
if ( isset($by_principal) ) {
@ -202,11 +184,11 @@ foreach( $aces AS $k => $ace ) {
case 'DAV::all':
// $principal_type = 'all';
precondition_failed( 'allowed-principal', 'May not set privileges for unauthenticated users' );
$request->PreconditionFailed(403, 'allowed-principal', 'May not set privileges for unauthenticated users' );
break;
default:
precondition_failed( 'recognized-principal' );
$request->PreconditionFailed(403, 'recognized-principal' );
break;
}