1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
<?php
require_once "database.php";
require_once "user.php";
class Node
{
public $node_id;
public $is_directory;
public $relative_path;
public $type;
public $code;
}
/*path is in terms of the simulated filesystem*/
/*returns NULL on error*/
function get_directory(string $abstract_path,User $user)
{
global $database;
if($abstract_path[0] != "/")
{
return NULL;
}
$component = strtok($abstract_path,"/");
$current_dir = $user->home_directory;
while($component)
{
$current_dir = $database->get_node_id($component, $current_dir);
$component = strtok("/");
}
return $current_dir;
}
/*returns an assoc arrat of Node-s*/
/*path is in terms of the simulated filesystem*/
function get_directory_contents(string $abstract_path,User $user)
{
global $database;
$dir_id=get_directory($abstract_path,$user);
if($dir_id==NULL)
return NULL;
return $database->get_links_of($dir_id);
}
/*path is in terms of the simulated filesystem*/
function create_directory(string $abstract_path,string $directory_name,string $note,User $user)
{
global $database;
$parent_dir_id=get_directory($abstract_path,$user);
if($database->check_if_name_is_taken($directory_name,$parent_dir_id))
{
return NULL;
}else
{
$dir_id=$database->create_dangling_directory();
$database->link_nodes($parent_dir_id,$dir_id,$directory_name,$note);
$database->give_view_access($dir_id, $user->user_id);
$database->give_edit_access($dir_id, $user->user_id);
return $dir_id;
}
}
function unlink_from_folder(string $abstract_path,string $filename,User $user)
{
global $database;
$parent_dir_id=get_directory($abstract_path,$user);
$database->unlink_nodes($parent_dir_id,$filename);
}
function create_share_link(string $abstract_path,string $filename,string $password,User $user,bool $can_read,bool $can_write)
{
global $database;
global $domain_name;
global $use_https;
$dir_id=get_directory($abstract_path,$user);
if($dir_id==NULL)
{
return NULL;
}
$node_id=get_node_id($filename,$dir_id);
if($node_id==NULL)
{
return NULL;
}
if($database->create_shared_node($password,$node_id)==false)
{
return NULL;
}
$code=$database->get_code_of_node($node_id);
if($code==NULL)
{
return NULL;
}
if($use_https)
{
return "https://".$domain_name."/share?file=".$code;
}else
{
return "http://".$domain_name."/share?file=".$code;
}
}
?>
|