Doxygen include/attach.php

Some Doxygen as far as I understood and some styleguides.
This commit is contained in:
Klaus 2014-02-19 21:04:20 +01:00
parent aa44d3abab
commit d755fb83a7

View File

@ -1,7 +1,8 @@
<?php /** @file */
<?php
/*
* File/attach API with the potential for revision control.
/** @file
*
* @brief File/attach API with the potential for revision control.
*
* TODO: a filesystem storage abstraction which maintains security (and 'data' contains a system filename
* which is inaccessible from the web). This could get around PHP storage limits and store videos and larger
@ -12,6 +13,15 @@
require_once('include/permissions.php');
require_once('include/security.php');
/**
* @brief Guess the mimetype from file ending.
*
* This function takes a file name and guess the mimetype from the
* filename extension.
*
* @param $filename a string filename
* @return string The mimetype according to a file ending.
*/
function z_mime_content_type($filename) {
$mime_types = array(
@ -80,8 +90,6 @@ function z_mime_content_type($filename) {
if (array_key_exists($ext, $mime_types)) {
return $mime_types[$ext];
}
}
return 'application/octet-stream';
@ -89,7 +97,20 @@ function z_mime_content_type($filename) {
}
/**
* @brief Count files/attachments.
*
*
* @param $channel_id
* @param $observer
* @param $hash (optional)
* @param $filename (optional)
* @param $filetype (optional)
* @return array
* $ret['success'] boolean
* $ret['results'] amount of found results, or false
* $ret['message'] string with error messages if any
*/
function attach_count_files($channel_id, $observer, $hash = '', $filename = '', $filetype = '') {
$ret = array('success' => false);
@ -121,6 +142,22 @@ function attach_count_files($channel_id, $observer, $hash = '', $filename = '',
}
/**
* @brief Returns a list of files/attachments.
*
* @param $channel_id
* @param $observer
* @param $hash (optional)
* @param $filename (optional)
* @param $filetype (optional)
* @param $orderby
* @param $start
* @param $entries
* @return array
* $ret['success'] boolean
* $ret['results'] array with results, or false
* $ret['message'] string with error messages if any
*/
function attach_list_files($channel_id, $observer, $hash = '', $filename = '', $filetype = '', $orderby = 'created desc', $start = 0, $entries = 0) {
$ret = array('success' => false);
@ -157,9 +194,16 @@ function attach_list_files($channel_id, $observer, $hash = '', $filename = '', $
}
// Find an attachment by hash and revision. Returns the entire attach structure including data.
// This could exhaust memory so most useful only when immediately sending the data.
/**
* @brief Find an attachment by hash and revision.
*
* Returns the entire attach structure including data.
*
* This could exhaust memory so most useful only when immediately sending the data.
*
* @param $hash
* @param $rev
*/
function attach_by_hash($hash, $rev = 0) {
$ret = array('success' => false);
@ -190,7 +234,6 @@ function attach_by_hash($hash,$rev = 0) {
// Now we'll see if we can access the attachment
$r = q("SELECT * FROM attach WHERE hash = '%s' and uid = %d $sql_extra LIMIT 1",
dbesc($hash),
intval($r[0]['uid'])
@ -207,8 +250,15 @@ function attach_by_hash($hash,$rev = 0) {
}
/**
* @brief Find an attachment by hash and revision.
*
* Returns the entire attach structure excluding data.
*
* @see attach_by_hash()
* @param $hash
* @param $ref
*/
function attach_by_hash_nodata($hash, $rev = 0) {
$ret = array('success' => false);
@ -254,12 +304,16 @@ function attach_by_hash_nodata($hash,$rev = 0) {
}
/**
* @brief
*
* @param $channel channel array of owner
* @param $observer_hash hash of current observer
* @param $options (optional)
* @param $arr (optional)
*/
function attach_store($channel, $observer_hash, $options = '', $arr = null) {
$ret = array('success' => false);
$channel_id = $channel['channel_id'];
$sql_options = '';
@ -379,7 +433,6 @@ function attach_store($channel,$observer_hash,$options = '',$arr = null) {
dbesc($x[0]['deny_gid'])
);
}
elseif($options === 'update') {
$r = q("update attach set filename = '%s', filetype = '%s', edited = '%s',
allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s' where id = %d and uid = %d limit 1",
@ -394,7 +447,6 @@ function attach_store($channel,$observer_hash,$options = '',$arr = null) {
intval($x[0]['uid'])
);
}
else {
$r = q("INSERT INTO attach ( aid, uid, hash, creator, filename, filetype, filesize, revision, data, created, edited, allow_cid, allow_gid,deny_cid, deny_gid )
VALUES ( %d, %d, '%s', '%s', '%s', '%s', %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s' ) ",
@ -441,12 +493,11 @@ function attach_store($channel,$observer_hash,$options = '',$arr = null) {
return $ret;
}
/**
* Read a virtual directory and return contents, checking permissions of all parent components.
* @function z_readdir
* @param integer $channel_id
* @param string $observer_hash
* @param string $observer_hash hash of current observer
* @param string $pathname
* @param string $parent_hash (optional)
*
@ -455,7 +506,6 @@ function attach_store($channel,$observer_hash,$options = '',$arr = null) {
* $ret['message'] = error message if success is false
* $ret['data'] = array of attach DB entries without data component
*/
function z_readdir($channel_id, $observer_hash, $pathname, $parent_hash = '') {
$ret = array('success' => false);
@ -464,7 +514,6 @@ function z_readdir($channel_id,$observer_hash,$pathname, $parent_hash = '') {
return $ret;
}
if(strpos($pathname, '/')) {
$paths = explode('/', $pathname);
if(count($paths) > 1) {
@ -501,20 +550,17 @@ function z_readdir($channel_id,$observer_hash,$pathname, $parent_hash = '') {
return $ret;
}
/**
* @function attach_mkdir($channel,$observer_hash,$arr);
*
* Create directory
* @brief Create directory.
*
* @param $channel channel array of owner
* @param $observer_hash hash of current observer
* @param $arr parameter array to fulfil request
*
* Required:
* $arr['filename']
* $arr['folder'] // hash of parent directory, empty string for root directory
*
* Optional:
* $arr['hash'] // precumputed hash for this node
* $arr['allow_cid']
@ -522,7 +568,6 @@ function z_readdir($channel_id,$observer_hash,$pathname, $parent_hash = '') {
* $arr['deny_cid']
* $arr['deny_gid']
*/
function attach_mkdir($channel, $observer_hash, $arr = null) {
$ret = array('success' => false);
@ -536,7 +581,6 @@ function attach_mkdir($channel,$observer_hash,$arr = null) {
if(! is_dir($basepath))
mkdir($basepath,STORAGE_DEFAULT_PERMISSIONS, true);
if(! perm_is_allowed($channel_id, $observer_hash, 'write_storage')) {
$ret['message'] = t('Permission denied.');
return $ret;
@ -547,10 +591,8 @@ function attach_mkdir($channel,$observer_hash,$arr = null) {
return $ret;
}
$arr['hash'] = (($arr['hash']) ? $arr['hash'] : random_string());
// Check for duplicate name.
// Check both the filename and the hash as we will be making use of both.
@ -576,7 +618,6 @@ function attach_mkdir($channel,$observer_hash,$arr = null) {
$sql_options = permissions_sql($channel['channel_id']);
do {
$r = q("select filename, hash, flags, folder from attach where uid = %d and hash = '%s' and ( flags & %d )
$sql_options limit 1",
intval($channel['channel_id']),
@ -594,7 +635,6 @@ function attach_mkdir($channel,$observer_hash,$arr = null) {
$lfile = $r[0]['folder'];
} while ( ($r[0]['folder']) && ($r[0]['flags'] & ATTACH_FLAG_DIR)) ;
$path = $basepath . '/' . $lpath;
}
else
$path = $basepath . '/';
@ -641,8 +681,17 @@ function attach_mkdir($channel,$observer_hash,$arr = null) {
}
/**
* @brief Changes permissions of a file.
*
* @param $channel_id
* @param $resource
* @param $allow_cid
* @param $allow_gid
* @param $deny_cid
* @param $deny_gid
* @param $recurse
*/
function attach_change_permissions($channel_id, $resource, $allow_cid, $allow_gid, $deny_cid, $deny_gid, $recurse = false) {
$r = q("select hash, flags from attach where hash = '%s' and uid = %d limit 1",
@ -679,8 +728,12 @@ function attach_change_permissions($channel_id,$resource,$allow_cid,$allow_gid,$
return;
}
/**
* @brief Delete a file.
*
* @param $channel_id
* @param $resource
*/
function attach_delete($channel_id, $resource) {
@ -733,8 +786,12 @@ function attach_delete($channel_id,$resource) {
return;
}
/**
* @brief Returns path to file in cloud/.
*
* @param $arr
* @return string with the path the file to cloud/
*/
function get_cloudpath($arr) {
$basepath = 'cloud/';
@ -746,7 +803,6 @@ function get_cloudpath($arr) {
$basepath .= $r[0]['channel_address'] . '/';
}
$path = $basepath;
if($arr['folder']) {
@ -772,17 +828,17 @@ function get_cloudpath($arr) {
} while ( ($r[0]['folder']) && ($r[0]['flags'] & ATTACH_FLAG_DIR)) ;
$path .= $lpath;
}
$path .= $arr['filename'];
return $path;
}
/**
*
* @param $in
* @param $out
*/
function pipe_streams($in, $out) {
$size = 0;
while (!feof($in))