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-rw-r--r--include/reddav.php138
1 files changed, 62 insertions, 76 deletions
diff --git a/include/reddav.php b/include/reddav.php
index 17bca790d..543cdfeac 100644
--- a/include/reddav.php
+++ b/include/reddav.php
@@ -5,73 +5,6 @@ require_once('vendor/autoload.php');
require_once('include/attach.php');
-class RedInode implements DAV\INode {
-
- private $attach;
-
- function __construct($attach) {
- $this->attach = $attach;
- }
-
-
- function delete() {
- if(! perm_is_allowed($this->channel_id,'','view_storage'))
- return;
-
- /**
- * Since I don't believe this is documented elsewhere -
- * ATTACH_FLAG_OS means that the file contents are stored in the OS
- * rather than in the DB - as is the case for attachments.
- * Exactly how they are stored (what path and filename) are still
- * TBD. We will probably not be using the original filename but
- * instead the attachment 'hash' as this will prevent folks from
- * uploading PHP code onto misconfigured servers and executing it.
- * It's easy to misconfigure servers because we can provide a
- * rule for Apache, but folks using nginx will then be susceptible.
- * Then there are those who don't understand these kinds of exploits
- * and don't have any idea allowing uploaded PHP files to be executed
- * by the server could be a problem. We also don't have any idea what
- * executable types are served on their system - like .py, .pyc, .pl, .sh
- * .cgi, .exe, .bat, .net, whatever.
- */
-
- if($this->attach['flags'] & ATTACH_FLAG_OS) {
- // FIXME delete physical file
- }
- if($this->attach['flags'] & ATTACH_FLAG_DIR) {
- // FIXME delete contents (recursive?)
- }
-
- q("delete from attach where id = %d limit 1",
- intval($this->attach['id'])
- );
-
- }
-
- function getName() {
- return $this->attach['filename'];
- }
-
- function setName($newName) {
-
- if((! $newName) || (! perm_is_allowed($this->channel_id,'','view_storage')))
- return;
-
- $this->attach['filename'] = $newName;
- $r = q("update attach set filename = '%s' where id = %d limit 1",
- dbesc($this->attach['filename']),
- intval($this->attach['id'])
- );
-
- }
-
- function getLastModified() {
- return $this->attach['edited'];
- }
-
-}
-
-
class RedDirectory extends DAV\Node implements DAV\ICollection {
private $red_path;
@@ -79,7 +12,7 @@ class RedDirectory extends DAV\Node implements DAV\ICollection {
private $ext_path;
private $root_dir = '';
private $auth;
-
+ private $os_path = '';
function __construct($ext_path,&$auth_plugin) {
logger('RedDirectory::__construct() ' . $ext_path);
@@ -158,8 +91,6 @@ class RedDirectory extends DAV\Node implements DAV\ICollection {
logger('RedDirectory::createFile : ' . $name);
logger('RedDirectory::createFile : ' . print_r($this,true));
-// logger('createFile():' . stream_get_contents($data));
-
if(! $this->auth->owner_id) {
logger('createFile: permission denied');
@@ -324,6 +255,7 @@ class RedDirectory extends DAV\Node implements DAV\ICollection {
$path = '/' . $channel_name;
$folder = '';
+ $os_path = '';
for($x = 1; $x < count($path_arr); $x ++) {
@@ -336,10 +268,15 @@ class RedDirectory extends DAV\Node implements DAV\ICollection {
if($r && ( $r[0]['flags'] & ATTACH_FLAG_DIR)) {
$folder = $r[0]['hash'];
+ if(strlen($os_path))
+ $os_path .= '/';
+ $os_path .= $folder;
+
$path = $path . '/' . $r[0]['filename'];
}
}
$this->folder_hash = $folder;
+ $this->os_path = $os_path;
return;
}
@@ -394,7 +331,6 @@ class RedFile extends DAV\Node implements DAV\IFile {
function put($data) {
logger('RedFile::put: ' . basename($this->name));
-// logger('put():' . stream_get_contents($data));
$r = q("update attach set data = '%s' where hash = '%s' and uid = %d limit 1",
dbesc(stream_get_contents($data)),
@@ -471,6 +407,23 @@ class RedFile extends DAV\Node implements DAV\IFile {
}
+ function delete() {
+
+ if($this->data['flags'] & ATTACH_FLAG_OS) {
+ // FIXME delete physical file
+ }
+ if($this->data['flags'] & ATTACH_FLAG_DIR) {
+ // FIXME delete contents (recursive?)
+ }
+
+// q("delete from attach where id = %d limit 1",
+// intval($this->data['id'])
+// );
+
+
+
+ }
+
}
function RedChannelList(&$auth) {
@@ -507,7 +460,6 @@ logger('RedCollectionData: ' . $file);
if((! $file) || ($file === '/')) {
return RedChannelList($auth);
-
}
$file = trim($file,'/');
@@ -528,25 +480,54 @@ logger('dbg1: ' . print_r($r,true));
return null;
$channel_id = $r[0]['channel_id'];
+ $perms = permissions_sql($channel_id);
+
$auth->owner_id = $channel_id;
$path = '/' . $channel_name;
$folder = '';
+ $errors = false;
+ $permission_error = false;
for($x = 1; $x < count($path_arr); $x ++) {
- $r = q("select id, hash, filename, flags from attach where folder = '%s' and filename = '%s' and (flags & %d)",
+ $r = q("select id, hash, filename, flags from attach where folder = '%s' and filename = '%s' and (flags & %d) $perms limit 1",
dbesc($folder),
dbesc($path_arr[$x]),
intval(ATTACH_FLAG_DIR)
);
+ if(! $r) {
+ // path wasn't found. Try without permissions to see if it was the result of permissions.
+ $errors = true;
+ $r = q("select id, hash, filename, flags from attach where folder = '%s' and filename = '%s' and (flags & %d) limit 1",
+ dbesc($folder),
+ basename($path_arr[$x]),
+ intval(ATTACH_FLAG_DIR)
+ );
+ if($r) {
+ $permission_error = true;
+ }
+ break;
+ }
+
if($r && ( $r[0]['flags'] & ATTACH_FLAG_DIR)) {
$folder = $r[0]['hash'];
$path = $path . '/' . $r[0]['filename'];
}
}
-logger('dbg2: ' . print_r($r,true));
+ if($errors) {
+ if($permission_error) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ return;
+ }
+ else {
+ throw new DAV\Exception\NotFound('A component of the request file path could not be found');
+ return;
+ }
+ }
+
+ logger('dbg2: ' . print_r($r,true));
if($path !== '/' . $file) {
logger("RedCollectionData: Path mismatch: $path !== /$file");
@@ -555,8 +536,7 @@ logger('dbg2: ' . print_r($r,true));
$ret = array();
-
- $r = q("select id, uid, hash, filename, filetype, filesize, revision, folder, flags, created, edited from attach where folder = '%s' and uid = %d group by filename",
+ $r = q("select id, uid, hash, filename, filetype, filesize, revision, folder, flags, created, edited from attach where folder = '%s' and uid = %d $perms group by filename",
dbesc($folder),
intval($channel_id)
);
@@ -776,6 +756,12 @@ class RedBrowser extends DAV\Browser\Plugin {
}
+ // The DAV browser is instantiated after the auth module and directory classes but before we know the current
+ // directory and who the owner and observer are. So we add a pointer to the browser into the auth module and vice
+ // versa. Then when we've figured out what directory is actually being accessed, we call the following function
+ // to decide whether or not to show web elements which include writeable objects.
+
+
function set_writeable() {
logger('RedBrowser: ' . print_r($this->auth,true));
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-04 18:46:07 +0000