Issues (843)

Security Analysis    not enabled

This project does not seem to handle request data directly as such no vulnerable execution paths were found.

  Cross-Site Scripting
Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.
  File Exposure
File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.
  File Manipulation
File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.
  Object Injection
Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.
  Code Injection
Code Injection enables an attacker to execute arbitrary code on the server.
  Response Splitting
Response Splitting can be used to send arbitrary responses.
  File Inclusion
File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.
  Command Injection
Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.
  SQL Injection
SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.
  XPath Injection
XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.
  LDAP Injection
LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.
  Header Injection
  Other Vulnerability
This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.
  Regex Injection
Regex Injection enables an attacker to execute arbitrary code in your PHP process.
  XML Injection
XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.
  Variable Injection
Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.
Unfortunately, the security analysis is currently not available for your project. If you are a non-commercial open-source project, please contact support to gain access.

require/libs/geoPHP/lib/adapters/GeoRSS.class.php (11 issues)

Upgrade to new PHP Analysis Engine

These results are based on our legacy PHP analysis, consider migrating to our new PHP analysis engine instead. Learn more

1
<?php
2
/*
3
 * Copyright (c) Patrick Hayes
4
 *
5
 * This code is open-source and licenced under the Modified BSD License.
6
 * For the full copyright and license information, please view the LICENSE
7
 * file that was distributed with this source code.
8
 */
9
10
/**
11
 * PHP Geometry/GeoRSS encoder/decoder
12
 */
13
class GeoRSS extends GeoAdapter
14
{
15
  private $namespace = FALSE;
16
  private $nss = ''; // Name-space string. eg 'georss:'
17
  
18
  /**
19
   * Read GeoRSS string into geometry objects
20
   *
21
   * @param string $georss - an XML feed containing geoRSS
0 ignored issues
show
There is no parameter named $georss. Was it maybe removed?

This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.

Consider the following example. The parameter $italy is not defined by the method finale(...).

/**
 * @param array $germany
 * @param array $island
 * @param array $italy
 */
function finale($germany, $island) {
    return "2:1";
}

The most likely cause is that the parameter was removed, but the annotation was not.

Loading history...
22
   *
23
   * @return Geometry|GeometryCollection
24
   */
25
  public function read($gpx) {
26
    return $this->geomFromText($gpx);
27
  }
28
29
  /**
30
   * Serialize geometries into a GeoRSS string.
31
   *
32
   * @param Geometry $geometry
33
   *
34
   * @return string The georss string representation of the input geometries
35
   */
36
  public function write(Geometry $geometry, $namespace = FALSE) {
37
    if ($namespace) {
38
      $this->namespace = $namespace;
39
      $this->nss = $namespace.':';    
40
    }
41
    return $this->geometryToGeoRSS($geometry);
42
  }
43
  
44
  public function geomFromText($text) {
45
    // Change to lower-case, strip all CDATA, and de-namespace
46
    $text = strtolower($text);
47
    $text = preg_replace('/<!\[cdata\[(.*?)\]\]>/s','',$text);
48
        
49
    // Load into DOMDOcument
50
    $xmlobj = new DOMDocument();
51
    @$xmlobj->loadXML($text);
0 ignored issues
show
Security Best Practice introduced by
It seems like you do not handle an error condition here. This can introduce security issues, and is generally not recommended.

If you suppress an error, we recommend checking for the error condition explicitly:

// For example instead of
@mkdir($dir);

// Better use
if (@mkdir($dir) === false) {
    throw new \RuntimeException('The directory '.$dir.' could not be created.');
}
Loading history...
52
    if ($xmlobj === false) {
53
      throw new Exception("Invalid GeoRSS: ". $text);
54
    }
55
    
56
    $this->xmlobj = $xmlobj;
0 ignored issues
show
The property xmlobj does not exist. Did you maybe forget to declare it?

In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:

class MyClass { }

$x = new MyClass();
$x->foo = true;

Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion:

class MyClass {
    public $foo;
}

$x = new MyClass();
$x->foo = true;
Loading history...
57
    try {
58
      $geom = $this->geomFromXML();
59
    } catch(InvalidText $e) {
0 ignored issues
show
The class InvalidText does not exist. Did you forget a USE statement, or did you not list all dependencies?

Scrutinizer analyzes your composer.json/composer.lock file if available to determine the classes, and functions that are defined by your dependencies.

It seems like the listed class was neither found in your dependencies, nor was it found in the analyzed files in your repository. If you are using some other form of dependency management, you might want to disable this analysis.

Loading history...
60
        throw new Exception("Cannot Read Geometry From GeoRSS: ". $text);
61
    } catch(Exception $e) {
62
        throw $e;
63
    }
64
65
    return $geom;
66
  }
67
  
68
  protected function geomFromXML() {
69
    $geometries = array();
70
    $geometries = array_merge($geometries, $this->parsePoints());
71
    $geometries = array_merge($geometries, $this->parseLines());
72
    $geometries = array_merge($geometries, $this->parsePolygons());
73
    $geometries = array_merge($geometries, $this->parseBoxes());
74
    $geometries = array_merge($geometries, $this->parseCircles());
75
    
76
    if (empty($geometries)) {
77
      throw new Exception("Invalid / Empty GeoRSS");
78
    }
79
    
80
    return geoPHP::geometryReduce($geometries); 
81
  }
82
  
83
  protected function getPointsFromCoords($string) {
84
    $coords = array();
85
    $latlon = explode(' ',$string);
86
    foreach ($latlon as $key => $item) {
87
      if (!($key % 2)) {
88
        // It's a latitude
89
        $lat = $item;
90
      }
91
      else {
92
        // It's a longitude
93
        $lon = $item;
94
        $coords[] = new Point($lon, $lat);
0 ignored issues
show
The variable $lat does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
95
      }
96
    }
97
    return $coords;
98
  }
99
  
100
  protected function parsePoints() {
101
    $points = array();
102
    $pt_elements = $this->xmlobj->getElementsByTagName('point');
103
    foreach ($pt_elements as $pt) {
104
      $point_array = $this->getPointsFromCoords(trim($pt->firstChild->nodeValue));
105
      $points[] = $point_array[0];
106
    }
107
    return $points;
108
  }
109
  
110
  protected function parseLines() {
111
    $lines = array();
112
    $line_elements = $this->xmlobj->getElementsByTagName('line');
113
    foreach ($line_elements as $line) {
114
      $components = $this->getPointsFromCoords(trim($line->firstChild->nodeValue));
115
      $lines[] = new LineString($components);
116
    }
117
    return $lines;
118
  }
119
  
120
  protected function parsePolygons() {
121
    $polygons = array();
122
    $poly_elements = $this->xmlobj->getElementsByTagName('polygon');
123
    foreach ($poly_elements as $poly) {
124
      if ($poly->hasChildNodes()) {
125
        $points = $this->getPointsFromCoords(trim($poly->firstChild->nodeValue));
126
        $exterior_ring = new LineString($points);
127
        $polygons[] = new Polygon(array($exterior_ring));
128
      }
129
      else {
130
        // It's an EMPTY polygon
131
        $polygons[] = new Polygon(); 
132
      }
133
    }
134
    return $polygons;
135
  }
136
  
137
  // Boxes are rendered into polygons
138
  protected function parseBoxes() {
139
    $polygons = array();
140
    $box_elements = $this->xmlobj->getElementsByTagName('box');
141
    foreach ($box_elements as $box) {
142
      $parts = explode(' ',trim($box->firstChild->nodeValue));
143
      $components = array(
144
        new Point($parts[3], $parts[2]),
145
        new Point($parts[3], $parts[0]),
146
        new Point($parts[1], $parts[0]),
147
        new Point($parts[1], $parts[2]),
148
        new Point($parts[3], $parts[2]),
149
      );
150
      $exterior_ring = new LineString($components);
151
      $polygons[] = new Polygon(array($exterior_ring));
152
    }
153
    return $polygons;
154
  }
155
156
  // Circles are rendered into points
157
  // @@TODO: Add good support once we have circular-string geometry support
158
  protected function parseCircles() {
159
    $points = array();
160
    $circle_elements = $this->xmlobj->getElementsByTagName('circle');
161
    foreach ($circle_elements as $circle) {
162
      $parts = explode(' ',trim($circle->firstChild->nodeValue));
163
      $points[] = new Point($parts[1], $parts[0]);
164
    }
165
    return $points;
166
  }
167
  
168
  protected function geometryToGeoRSS($geom) {
169
    $type = strtolower($geom->getGeomType());
170
    switch ($type) {
171
      case 'point':
172
        return $this->pointToGeoRSS($geom);
173
        break;
0 ignored issues
show
break is not strictly necessary here and could be removed.

The break statement is not necessary if it is preceded for example by a return statement:

switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}

If you would like to keep this construct to be consistent with other case statements, you can safely mark this issue as a false-positive.

Loading history...
174
      case 'linestring':
175
        return $this->linestringToGeoRSS($geom);
176
        break;
0 ignored issues
show
break is not strictly necessary here and could be removed.

The break statement is not necessary if it is preceded for example by a return statement:

switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}

If you would like to keep this construct to be consistent with other case statements, you can safely mark this issue as a false-positive.

Loading history...
177
      case 'polygon':
178
        return $this->PolygonToGeoRSS($geom);
179
        break;
0 ignored issues
show
break is not strictly necessary here and could be removed.

The break statement is not necessary if it is preceded for example by a return statement:

switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}

If you would like to keep this construct to be consistent with other case statements, you can safely mark this issue as a false-positive.

Loading history...
180
      case 'multipoint':
181
      case 'multilinestring':
182
      case 'multipolygon':
183
      case 'geometrycollection':
184
        return $this->collectionToGeoRSS($geom);
185
        break;
0 ignored issues
show
break is not strictly necessary here and could be removed.

The break statement is not necessary if it is preceded for example by a return statement:

switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}

If you would like to keep this construct to be consistent with other case statements, you can safely mark this issue as a false-positive.

Loading history...
186
    }
187
    return $output;
0 ignored issues
show
The variable $output does not exist. Did you forget to declare it?

This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.

Loading history...
188
  }
189
  
190
  private function pointToGeoRSS($geom) {
191
    return '<'.$this->nss.'point>'.$geom->getY().' '.$geom->getX().'</'.$this->nss.'point>';
192
  }
193
  
194
195
  private function linestringToGeoRSS($geom) {
196
    $output = '<'.$this->nss.'line>';
197
    foreach ($geom->getComponents() as $k => $point) {
198
      $output .= $point->getY().' '.$point->getX();
199
      if ($k < ($geom->numGeometries() -1)) $output .= ' ';
200
    }
201
    $output .= '</'.$this->nss.'line>';
202
    return $output;
203
  }
204
205
  private function polygonToGeoRSS($geom) {
206
    $output = '<'.$this->nss.'polygon>';
207
    $exterior_ring = $geom->exteriorRing();
208
    foreach ($exterior_ring->getComponents() as $k => $point) {
209
      $output .= $point->getY().' '.$point->getX();
210
      if ($k < ($exterior_ring->numGeometries() -1)) $output .= ' ';
211
    }
212
    $output .= '</'.$this->nss.'polygon>';
213
    return $output;
214
  }
215
  
216
  public function collectionToGeoRSS($geom) {
217
    $georss = '<'.$this->nss.'where>';
218
    $components = $geom->getComponents();
0 ignored issues
show
$components is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

Loading history...
219
    foreach ($geom->getComponents() as $comp) {
220
      $georss .= $this->geometryToGeoRSS($comp);
221
    }
222
    
223
    $georss .= '</'.$this->nss.'where>';
224
    
225
    return $georss;
226
  }
227
228
}
229