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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
<?php
/**
* @file repository.php
* @brief OpenGnsys Repository REST API manager.
* @warning All input and output messages are formatted in JSON.
* @note Some ideas are based on article "How to create REST API for Android app using PHP, Slim and MySQL" by Ravi Tamada, thanx.
* @license GNU GPLv3+
* @author Juan Manuel Bardallo SIC Universidad de Huelva
* @version 1.0
* @date 2016-04-06
*/
// Auxiliar functions.
/**
* @brief Validate API key included in "Authorization" HTTP header.
* @return JSON response on error.
*/
function validateRepositoryApiKey() {
$response = array();
$app = \Slim\Slim::getInstance();
// Read Authorization HTTP header.
$headers = apache_request_headers();
if (! empty($headers['Authorization'])) {
// Assign user id. that match this key to global variable.
$apikey = htmlspecialchars($headers['Authorization']);
// El repositorio recupera el token desde el fichero de configuracion ogAdmRepo.cfg
$confFile = fopen("../../etc/ogAdmRepo.cfg", "r");
// Leemos cada linea hasta encontrar la clave "ApiToken"
if ($confFile) {
$found = false;
while(!feof($confFile)){
$line = fgets($confFile);
$key = strtok($line,"=");
if($key == "ApiToken"){
$token = trim(strtok("="));
if(strcmp($apikey,$token) == 0){
$found = true;
}
}
}
if (!$found){
// Credentials error.
$response['message'] = 'Login failed. Incorrect credentials';
jsonResponse(401, $response);
$app->stop();
}
} else {
// Access error.
$response['message'] = "An error occurred, please try again";
jsonResponse(500, $response);
}
} else {
// Error: missing API key.
$response['message'] = 'Missing Repository API key';
jsonResponse(400, $response);
$app->stop();
}
}
function commandExist($cmd) {
$returnVal = shell_exec("which $cmd");
return (empty($returnVal) ? false : true);
}
function humanSize($bytes)
{
$si_prefix = array( 'B', 'KB', 'MB', 'GB', 'TB', 'EB', 'ZB', 'YB' );
$base = 1024;
$class = min((int)log($bytes , $base) , count($si_prefix) - 1);
return sprintf('%1.2f' , $bytes / pow($base,$class)) . ' ' . $si_prefix[$class];
}
// Define REST routes.
/**
* @brief List all images in the repository
* @note Route: /repository/images, Method: GET
* @param no
* @return JSON object with directory, images array, ous array and disk data.
*/
$app->get('/repository/images(/)', 'validateRepositoryApiKey',
function() use ($app) {
$response = array();
// Read repository information file.
$cfgFile = '/opt/opengnsys/etc/repoinfo.json';
$response = json_decode(@file_get_contents($cfgFile), true);
// Check if directory exists.
$imgPath = @$response['directory'];
if (is_dir($imgPath)) {
// Complete global image information.
for ($i=0; $i<sizeof(@$response['images']); $i++) {
$img = $response['images'][$i];
$file = $imgPath."/".($img['type']==="dir" ? $img["name"] : $img["name"].".".$img["type"]);
$response['images'][$i]['size'] = @stat($file)['size'];
$response['images'][$i]['modified'] = date("Y-m-d H:i:s", @stat($file)['mtime']);
$response['images'][$i]['mode'] = substr(decoct(@stat($file)['mode']), -4);
$backupfile = $file.".ant";
if (file_exists($backupfile)) {
$response['images'][$i]['backedup'] = true;
$response['images'][$i]['backupsize'] = @stat($backupfile)['size'];
} else {
$response['images'][$i]['backedup'] = false;
}
}
// Complete image in OUs information.
for ($j=0; $j<sizeof(@$response['ous']); $j++) {
for ($i=0; $i<sizeof(@$response['ous'][$j]['images']); $i++) {
$img = $response['ous'][$j]['images'][$i];
$file = $imgPath."/".$response['ous'][$j]['subdir']."/".($img['type']==="dir" ? $img["name"] : $img["name"].".".$img["type"]);
$response['ous'][$j]['images'][$i]['size'] = @stat($file)['size'];
$response['ous'][$j]['images'][$i]['modified'] = date("Y-m-d H:i:s", @stat($file)['mtime']);
$response['ous'][$j]['images'][$i]['mode'] = substr(decoct(@stat($file)['mode']), -4);
}
}
// Retrieve disk information.
$total = disk_total_space($imgPath);
$free = disk_free_space($imgPath);
$response['disk']['total'] = humanSize($total);
$response['disk']['used'] = humanSize($total - $free);
$response['disk']['free'] = humanSize($free);
$response['disk']['percent'] = 100 - floor(100 * $free / $total) . " %";
// JSON response.
jsonResponse(200, $response);
} else {
// Print error message.
$response['message'] = 'Images directory not found';
jsonResponse(404, $response);
}
$app->stop();
}
);
/**
* @brief Power on a pc or group of pcs with the MAC specified in POST parameters
* @note Route: /poweron, Method: POST
* @param macs OU id.
* @return JSON string ok if the power on command was sent
*/
$app->post('/repository/poweron', 'validateRepositoryApiKey',
function() {
$app = \Slim\Slim::getInstance();
// Debe venir el parametro macs en el post (objeto JSON con array de MACs)
$data = $app->request()->post();
if(empty($data->macs)){
// Print error message.
$response['message'] = 'Required param macs not found';
jsonResponse(400, $response);
}
else{
$macs = $data->macs;
$strMacs = "";
foreach($macs as $mac){
$strMacs .= " ".$mac;
}
// Ejecutar comando wakeonlan, debe estar disponible en el sistema operativo
if(commandExist("wakeonlan")){
$response["output"] = "Executing wakeonlan ".trim($strMacs)."\n";
$response["output"] .= shell_exec("wakeonlan ".trim($strMacs));
// Comprobar si el comando se ejecutórrectamente
jsonResponse(200, $response);
}
else{
// Print error message.
$response['message'] = 'Wakeonlan command not found in this repository';
jsonResponse(404, $response);
}
}
}
);
?>
|
