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full implementation of draft-murchison-webdav-prefer-05, incl. return=representation for 412 conflicts

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This commit is contained in:
Ralf Becker 2013-09-25 07:09:44 +00:00
parent 8d5c4138bc
commit 86649cd1e1
2 changed files with 16 additions and 1 deletions
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4
calendar/inc/class.calendar_groupdav.inc.php
View File

@ -774,6 +774,8 @@ class calendar_groupdav extends groupdav_handler
if ($schedule_tag_match !== $schedule_tag) if ($schedule_tag_match !== $schedule_tag)
{ {
if ($this->debug) error_log(__METHOD__."(,,$user) schedule_tag missmatch: given '$schedule_tag_match' != '$schedule_tag'"); if ($this->debug) error_log(__METHOD__."(,,$user) schedule_tag missmatch: given '$schedule_tag_match' != '$schedule_tag'");
// honor Prefer: return=representation for 412 too (no need for client to explicitly reload)
$this->check_return_representation($options, $id, $user);
return '412 Precondition Failed'; return '412 Precondition Failed';
} }
} }
@ -891,6 +893,8 @@ class calendar_groupdav extends groupdav_handler
} }
elseif ($cal_id === 0) // etag failure elseif ($cal_id === 0) // etag failure
{ {
// honor Prefer: return=representation for 412 too (no need for client to explicitly reload)
$this->check_return_representation($options, $id, $user);
return '412 Precondition Failed'; return '412 Precondition Failed';
} }
else else

13
phpgwapi/inc/class.groupdav_handler.inc.php
View File

@ -309,6 +309,8 @@ abstract class groupdav_handler
if ($this->http_if_match !== $etag) if ($this->http_if_match !== $etag)
{ {
if ($this->debug) error_log(__METHOD__."($method,path=$options[path],$id) HTTP_IF_MATCH='$_SERVER[HTTP_IF_MATCH]', etag='$etag': 412 Precondition failed".array2string($entry)); if ($this->debug) error_log(__METHOD__."($method,path=$options[path],$id) HTTP_IF_MATCH='$_SERVER[HTTP_IF_MATCH]', etag='$etag': 412 Precondition failed".array2string($entry));
// honor Prefer: return=representation for 412 too (no need for client to explicitly reload)
$this->check_return_representation($options, $id);
return '412 Precondition Failed'; return '412 Precondition Failed';
} }
} }
@ -327,6 +329,8 @@ abstract class groupdav_handler
if ($method == 'PUT' && ($if_none_match == '*' || $if_none_match == $etag)) if ($method == 'PUT' && ($if_none_match == '*' || $if_none_match == $etag))
{ {
if ($this->debug) error_log(__METHOD__."($method,,$id) HTTP_IF_NONE_MATCH='$_SERVER[HTTP_IF_NONE_MATCH]', etag='$etag': 412 Precondition failed"); if ($this->debug) error_log(__METHOD__."($method,,$id) HTTP_IF_NONE_MATCH='$_SERVER[HTTP_IF_NONE_MATCH]', etag='$etag': 412 Precondition failed");
// honor Prefer: return=representation for 412 too (no need for client to explicitly reload)
$this->check_return_representation($options, $id);
return '412 Precondition Failed'; return '412 Precondition Failed';
} }
} }
@ -344,7 +348,8 @@ abstract class groupdav_handler
*/ */
public function check_return_representation($options, $id, $user=null) public function check_return_representation($options, $id, $user=null)
{ {
if (isset($_SERVER['HTTP_PREFER']) && in_array('return=representation', explode(',', $_SERVER['HTTP_PREFER']))) //error_log(__METHOD__."(, $id, $user) start ".function_backtrace());
if (isset($_SERVER['HTTP_PREFER']) && in_array('return=representation', preg_split('/, ?/', $_SERVER['HTTP_PREFER'])))
{ {
if ($_SERVER['REQUEST_METHOD'] == 'POST') if ($_SERVER['REQUEST_METHOD'] == 'POST')
{ {
@ -355,6 +360,11 @@ abstract class groupdav_handler
} }
header('Content-Location: '.$location); header('Content-Location: '.$location);
} }
// remove If-Match or If-None-Match headers, otherwise HTTP status 412 goes into endless loop!
unset($_SERVER['HTTP_IF_MATCH']);
unset($_SERVER['HTTP_IF_NONE_MATCH']);
if (($ret = $this->get($options, $id ? $id : $this->new_id, $user)) && !empty($options['data'])) if (($ret = $this->get($options, $id ? $id : $this->new_id, $user)) && !empty($options['data']))
{ {
header('Content-Length: '.$this->groupdav->bytes($options['data'])); header('Content-Length: '.$this->groupdav->bytes($options['data']));
@ -362,6 +372,7 @@ abstract class groupdav_handler
echo $options['data']; echo $options['data'];
} }
} }
//error_log(__METHOD__."(, $id, $user) returning ".array2string($ret));
return $ret; return $ret;
} }