EmptyContentSecurityPolicy::disallowFormActionDomain() - Code Metrics - Inspection of "Merge pull request #16618 from nextcloud/enh/csp/f..." - nextcloud/server - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( f1066f...5f6ac5 )

by Roeland

created 2019-07-31 17:42 UTC

disallowFormActionDomain() A

↳ Parent: EmptyContentSecurityPolicy

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	2
nc	1
nop	1
dl	0
loc	3
rs	10
c	1
b	0
f	0

<?php
/**
 * @copyright Copyright (c) 2016, ownCloud, Inc.
 *
 * @author Lukas Reschke <[email protected]>
 * @author Pierre Rudloff <[email protected]>
 * @author Roeland Jago Douma <[email protected]>
 * @author Thomas Citharel <[email protected]>
 *
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OCP\AppFramework\Http;

/**
 * Class EmptyContentSecurityPolicy is a simple helper which allows applications
 * to modify the Content-Security-Policy sent by ownCloud. Per default the policy
 * is forbidding everything.
 *
 * As alternative with sane exemptions look at ContentSecurityPolicy
 *
 * @see \OCP\AppFramework\Http\ContentSecurityPolicy
 * @package OCP\AppFramework\Http
 * @since 9.0.0
 */
class EmptyContentSecurityPolicy {
	/** @var bool Whether inline JS snippets are allowed */
	protected $inlineScriptAllowed = null;
	/** @var string Whether JS nonces should be used */
	protected $useJsNonce = null;
	/**
	 * @var bool Whether eval in JS scripts is allowed
	 * TODO: Disallow per default
	 * @link https://github.com/owncloud/core/issues/11925
	 */
	protected $evalScriptAllowed = null;
	/** @var array Domains from which scripts can get loaded */
	protected $allowedScriptDomains = null;
	/**
	 * @var bool Whether inline CSS is allowed
	 * TODO: Disallow per default
	 * @link https://github.com/owncloud/core/issues/13458
	 */
	protected $inlineStyleAllowed = null;
	/** @var array Domains from which CSS can get loaded */
	protected $allowedStyleDomains = null;
	/** @var array Domains from which images can get loaded */
	protected $allowedImageDomains = null;
	/** @var array Domains to which connections can be done */
	protected $allowedConnectDomains = null;
	/** @var array Domains from which media elements can be loaded */
	protected $allowedMediaDomains = null;
	/** @var array Domains from which object elements can be loaded */
	protected $allowedObjectDomains = null;
	/** @var array Domains from which iframes can be loaded */
	protected $allowedFrameDomains = null;
	/** @var array Domains from which fonts can be loaded */
	protected $allowedFontDomains = null;
	/** @var array Domains from which web-workers and nested browsing content can load elements */
	protected $allowedChildSrcDomains = null;
	/** @var array Domains which can embed this Nextcloud instance */
	protected $allowedFrameAncestors = null;
	/** @var array Domains from which web-workers can be loaded */
	protected $allowedWorkerSrcDomains = null;
	/** @var array Domains which can be used as target for forms */
	protected $allowedFormActionDomains = null;

	/** @var array Locations to report violations to */
	protected $reportTo = null;

	/**
	 * Whether inline JavaScript snippets are allowed or forbidden
	 * @param bool $state
	 * @return $this
	 * @since 8.1.0
	 * @deprecated 10.0 CSP tokens are now used
	 */
	public function allowInlineScript($state = false) {
		$this->inlineScriptAllowed = $state;
		return $this;
	}

	/**
	 * Use the according JS nonce
	 *
	 * @param string $nonce
	 * @return $this
	 * @since 11.0.0
	 */
	public function useJsNonce($nonce) {
		$this->useJsNonce = $nonce;
		return $this;
	}

	/**
	 * Whether eval in JavaScript is allowed or forbidden
	 * @param bool $state
	 * @return $this
	 * @since 8.1.0
	 */
	public function allowEvalScript($state = true) {
		$this->evalScriptAllowed = $state;
		return $this;
	}

	/**
	 * Allows to execute JavaScript files from a specific domain. Use * to
	 * allow JavaScript from all domains.
	 * @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
	 * @return $this
	 * @since 8.1.0
	 */
	public function addAllowedScriptDomain($domain) {
		$this->allowedScriptDomains[] = $domain;
		return $this;
	}

	/**
	 * Remove the specified allowed script domain from the allowed domains.
	 *
	 * @param string $domain
	 * @return $this
	 * @since 8.1.0
	 */
	public function disallowScriptDomain($domain) {
		$this->allowedScriptDomains = array_diff($this->allowedScriptDomains, [$domain]);
		return $this;
	}

	/**
	 * Whether inline CSS snippets are allowed or forbidden
	 * @param bool $state
	 * @return $this
	 * @since 8.1.0
	 */
	public function allowInlineStyle($state = true) {
		$this->inlineStyleAllowed = $state;
		return $this;
	}

	/**
	 * Allows to execute CSS files from a specific domain. Use * to allow
	 * CSS from all domains.
	 * @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
	 * @return $this
	 * @since 8.1.0
	 */
	public function addAllowedStyleDomain($domain) {
		$this->allowedStyleDomains[] = $domain;
		return $this;
	}

	/**
	 * Remove the specified allowed style domain from the allowed domains.
	 *
	 * @param string $domain
	 * @return $this
	 * @since 8.1.0
	 */
	public function disallowStyleDomain($domain) {
		$this->allowedStyleDomains = array_diff($this->allowedStyleDomains, [$domain]);
		return $this;
	}

	/**
	 * Allows using fonts from a specific domain. Use * to allow
	 * fonts from all domains.
	 * @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
	 * @return $this
	 * @since 8.1.0
	 */
	public function addAllowedFontDomain($domain) {
		$this->allowedFontDomains[] = $domain;
		return $this;
	}

	/**
	 * Remove the specified allowed font domain from the allowed domains.
	 *
	 * @param string $domain
	 * @return $this
	 * @since 8.1.0
	 */
	public function disallowFontDomain($domain) {
		$this->allowedFontDomains = array_diff($this->allowedFontDomains, [$domain]);
		return $this;
	}

	/**
	 * Allows embedding images from a specific domain. Use * to allow
	 * images from all domains.
	 * @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
	 * @return $this
	 * @since 8.1.0
	 */
	public function addAllowedImageDomain($domain) {
		$this->allowedImageDomains[] = $domain;
		return $this;
	}

	/**
	 * Remove the specified allowed image domain from the allowed domains.
	 *
	 * @param string $domain
	 * @return $this
	 * @since 8.1.0
	 */
	public function disallowImageDomain($domain) {
		$this->allowedImageDomains = array_diff($this->allowedImageDomains, [$domain]);
		return $this;
	}

	/**
	 * To which remote domains the JS connect to.
	 * @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
	 * @return $this
	 * @since 8.1.0
	 */
	public function addAllowedConnectDomain($domain) {
		$this->allowedConnectDomains[] = $domain;
		return $this;
	}

	/**
	 * Remove the specified allowed connect domain from the allowed domains.
	 *
	 * @param string $domain
	 * @return $this
	 * @since 8.1.0
	 */
	public function disallowConnectDomain($domain) {
		$this->allowedConnectDomains = array_diff($this->allowedConnectDomains, [$domain]);
		return $this;
	}

	/**
	 * From which domains media elements can be embedded.
	 * @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
	 * @return $this
	 * @since 8.1.0
	 */
	public function addAllowedMediaDomain($domain) {
		$this->allowedMediaDomains[] = $domain;
		return $this;
	}

	/**
	 * Remove the specified allowed media domain from the allowed domains.
	 *
	 * @param string $domain
	 * @return $this
	 * @since 8.1.0
	 */
	public function disallowMediaDomain($domain) {
		$this->allowedMediaDomains = array_diff($this->allowedMediaDomains, [$domain]);
		return $this;
	}

	/**
	 * From which domains objects such as <object>, <embed> or <applet> are executed
	 * @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
	 * @return $this
	 * @since 8.1.0
	 */
	public function addAllowedObjectDomain($domain) {
		$this->allowedObjectDomains[] = $domain;
		return $this;
	}

	/**
	 * Remove the specified allowed object domain from the allowed domains.
	 *
	 * @param string $domain
	 * @return $this
	 * @since 8.1.0
	 */
	public function disallowObjectDomain($domain) {
		$this->allowedObjectDomains = array_diff($this->allowedObjectDomains, [$domain]);
		return $this;
	}

	/**
	 * Which domains can be embedded in an iframe
	 * @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
	 * @return $this
	 * @since 8.1.0
	 */
	public function addAllowedFrameDomain($domain) {
		$this->allowedFrameDomains[] = $domain;
		return $this;
	}

	/**
	 * Remove the specified allowed frame domain from the allowed domains.
	 *
	 * @param string $domain
	 * @return $this
	 * @since 8.1.0
	 */
	public function disallowFrameDomain($domain) {
		$this->allowedFrameDomains = array_diff($this->allowedFrameDomains, [$domain]);
		return $this;
	}

	/**
	 * Domains from which web-workers and nested browsing content can load elements
	 * @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
	 * @return $this
	 * @since 8.1.0
	 * @deprecated 15.0.0 use addAllowedWorkerSrcDomains or addAllowedFrameDomain
	 */
	public function addAllowedChildSrcDomain($domain) {
		$this->allowedChildSrcDomains[] = $domain;
		return $this;
	}

	/**
	 * Remove the specified allowed child src domain from the allowed domains.
	 *
	 * @param string $domain
	 * @return $this
	 * @since 8.1.0
	 * @deprecated 15.0.0 use the WorkerSrcDomains or FrameDomain
	 */
	public function disallowChildSrcDomain($domain) {
		$this->allowedChildSrcDomains = array_diff($this->allowedChildSrcDomains, [$domain]);
		return $this;
	}

	/**
	 * Domains which can embed an iFrame of the Nextcloud instance
	 *
	 * @param string $domain
	 * @return $this
	 * @since 13.0.0
	 */
	public function addAllowedFrameAncestorDomain($domain) {
		$this->allowedFrameAncestors[] = $domain;
		return $this;
	}

	/**
	 * Domains which can embed an iFrame of the Nextcloud instance
	 *
	 * @param string $domain
	 * @return $this
	 * @since 13.0.0
	 */
	public function disallowFrameAncestorDomain($domain) {
		$this->allowedFrameAncestors = array_diff($this->allowedFrameAncestors, [$domain]);
		return $this;
	}

	/**
	 * Domain from which workers can be loaded
	 *
	 * @param string $domain
	 * @return $this
	 * @since 15.0.0
	 */
	public function addAllowedWorkerSrcDomain(string $domain) {
		$this->allowedWorkerSrcDomains[] = $domain;
		return $this;
	}

	/**
	 * Remove domain from which workers can be loaded
	 *
	 * @param string $domain
	 * @return $this
	 * @since 15.0.0
	 */
	public function disallowWorkerSrcDomain(string $domain) {
		$this->allowedWorkerSrcDomains = array_diff($this->allowedWorkerSrcDomains, [$domain]);
		return $this;
	}

	/**
	 * Domain to where forms can submit
	 *
	 * @since 17.0.0
	 *
	 * @return $this
	 */
	public function addAllowedFormActionDomain(string $domain) {
		$this->allowedFormActionDomains[] = $domain;
		return $this;
	}

	/**
	 * Remove domain to where forms can submit
	 *
	 * @return $this
	 * @since 17.0.0
	 */
	public function disallowFormActionDomain(string $domain) {
		$this->allowedFormActionDomains = array_diff($this->allowedFormActionDomains, [$domain]);
		return $this;
	}

	/**
	 * Add location to report CSP violations to
	 *
	 * @param string $location
	 * @return $this
	 * @since 15.0.0
	 */
	public function addReportTo(string $location) {
		$this->reportTo[] = $location;
		return $this;
	}

	/**
	 * Get the generated Content-Security-Policy as a string
	 * @return string
	 * @since 8.1.0
	 */
	public function buildPolicy() {
		$policy = "default-src 'none';";
		$policy .= "base-uri 'none';";
		$policy .= "manifest-src 'self';";

		if(!empty($this->allowedScriptDomains) || $this->inlineScriptAllowed || $this->evalScriptAllowed) {
			$policy .= 'script-src ';
			if(is_string($this->useJsNonce)) {

				$policy .= '\'nonce-'.base64_encode($this->useJsNonce).'\'';
				$allowedScriptDomains = array_flip($this->allowedScriptDomains);
				unset($allowedScriptDomains['\'self\'']);
				$this->allowedScriptDomains = array_flip($allowedScriptDomains);
				if(count($allowedScriptDomains) !== 0) {
					$policy .= ' ';
				}
			}
			if(is_array($this->allowedScriptDomains)) {
				$policy .= implode(' ', $this->allowedScriptDomains);
			}
			if($this->inlineScriptAllowed) {
				$policy .= ' \'unsafe-inline\'';
			}
			if($this->evalScriptAllowed) {
				$policy .= ' \'unsafe-eval\'';
			}
			$policy .= ';';
		}

		if(!empty($this->allowedStyleDomains) || $this->inlineStyleAllowed) {
			$policy .= 'style-src ';
			if(is_array($this->allowedStyleDomains)) {
				$policy .= implode(' ', $this->allowedStyleDomains);
			}
			if($this->inlineStyleAllowed) {
				$policy .= ' \'unsafe-inline\'';
			}
			$policy .= ';';
		}

		if(!empty($this->allowedImageDomains)) {
			$policy .= 'img-src ' . implode(' ', $this->allowedImageDomains);
			$policy .= ';';
		}

		if(!empty($this->allowedFontDomains)) {
			$policy .= 'font-src ' . implode(' ', $this->allowedFontDomains);
			$policy .= ';';
		}

		if(!empty($this->allowedConnectDomains)) {
			$policy .= 'connect-src ' . implode(' ', $this->allowedConnectDomains);
			$policy .= ';';
		}

		if(!empty($this->allowedMediaDomains)) {
			$policy .= 'media-src ' . implode(' ', $this->allowedMediaDomains);
			$policy .= ';';
		}

		if(!empty($this->allowedObjectDomains)) {
			$policy .= 'object-src ' . implode(' ', $this->allowedObjectDomains);
			$policy .= ';';
		}

		if(!empty($this->allowedFrameDomains)) {
			$policy .= 'frame-src ';
			if(is_string($this->useJsNonce)) {

				$policy .= '\'nonce-' . base64_encode($this->useJsNonce) . '\' ';
			}
			$policy .= implode(' ', $this->allowedFrameDomains);
			$policy .= ';';
		}

		if(!empty($this->allowedChildSrcDomains)) {
			$policy .= 'child-src ' . implode(' ', $this->allowedChildSrcDomains);
			$policy .= ';';
		}

		if(!empty($this->allowedFrameAncestors)) {
			$policy .= 'frame-ancestors ' . implode(' ', $this->allowedFrameAncestors);
			$policy .= ';';
		}

		if (!empty($this->allowedWorkerSrcDomains)) {
			$policy .= 'worker-src ' . implode(' ', $this->allowedWorkerSrcDomains);
			$policy .= ';';
		}

		if (!empty($this->allowedFormActionDomains)) {
			$policy .= 'form-action ' . implode(' ', $this->allowedFormActionDomains);
			$policy .= ';';
		}

		if (!empty($this->reportTo)) {
			$policy .= 'report-uri ' . implode(' ', $this->reportTo);
			$policy .= ';';
		}

		return rtrim($policy, ';');
	}
}


1			<?php
2			/**
3			* @copyright Copyright (c) 2016, ownCloud, Inc.
4			*
5			* @author Lukas Reschke <[email protected]>
6			* @author Pierre Rudloff <[email protected]>
7			* @author Roeland Jago Douma <[email protected]>
8			* @author Thomas Citharel <[email protected]>
9			*
10			* @license AGPL-3.0
11			*
12			* This code is free software: you can redistribute it and/or modify
13			* it under the terms of the GNU Affero General Public License, version 3,
14			* as published by the Free Software Foundation.
15			*
16			* This program is distributed in the hope that it will be useful,
17			* but WITHOUT ANY WARRANTY; without even the implied warranty of
18			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19			* GNU Affero General Public License for more details.
20			*
21			* You should have received a copy of the GNU Affero General Public License, version 3,
22			* along with this program. If not, see <http://www.gnu.org/licenses/>
23			*
24			*/
25
26			namespace OCP\AppFramework\Http;
27
28			/**
29			* Class EmptyContentSecurityPolicy is a simple helper which allows applications
30			* to modify the Content-Security-Policy sent by ownCloud. Per default the policy
31			* is forbidding everything.
32			*
33			* As alternative with sane exemptions look at ContentSecurityPolicy
34			*
35			* @see \OCP\AppFramework\Http\ContentSecurityPolicy
36			* @package OCP\AppFramework\Http
37			* @since 9.0.0
38			*/
39			class EmptyContentSecurityPolicy {
40			/** @var bool Whether inline JS snippets are allowed */
41			protected $inlineScriptAllowed = null;
42			/** @var string Whether JS nonces should be used */
43			protected $useJsNonce = null;
44			/**
45			* @var bool Whether eval in JS scripts is allowed
46			* TODO: Disallow per default
47			* @link https://github.com/owncloud/core/issues/11925
48			*/
49			protected $evalScriptAllowed = null;
50			/** @var array Domains from which scripts can get loaded */
51			protected $allowedScriptDomains = null;
52			/**
53			* @var bool Whether inline CSS is allowed
54			* TODO: Disallow per default
55			* @link https://github.com/owncloud/core/issues/13458
56			*/
57			protected $inlineStyleAllowed = null;
58			/** @var array Domains from which CSS can get loaded */
59			protected $allowedStyleDomains = null;
60			/** @var array Domains from which images can get loaded */
61			protected $allowedImageDomains = null;
62			/** @var array Domains to which connections can be done */
63			protected $allowedConnectDomains = null;
64			/** @var array Domains from which media elements can be loaded */
65			protected $allowedMediaDomains = null;
66			/** @var array Domains from which object elements can be loaded */
67			protected $allowedObjectDomains = null;
68			/** @var array Domains from which iframes can be loaded */
69			protected $allowedFrameDomains = null;
70			/** @var array Domains from which fonts can be loaded */
71			protected $allowedFontDomains = null;
72			/** @var array Domains from which web-workers and nested browsing content can load elements */
73			protected $allowedChildSrcDomains = null;
74			/** @var array Domains which can embed this Nextcloud instance */
75			protected $allowedFrameAncestors = null;
76			/** @var array Domains from which web-workers can be loaded */
77			protected $allowedWorkerSrcDomains = null;
78			/** @var array Domains which can be used as target for forms */
79			protected $allowedFormActionDomains = null;
80
81			/** @var array Locations to report violations to */
82			protected $reportTo = null;
83
84			/**
85			* Whether inline JavaScript snippets are allowed or forbidden
86			* @param bool $state
87			* @return $this
88			* @since 8.1.0
89			* @deprecated 10.0 CSP tokens are now used
90			*/
91			public function allowInlineScript($state = false) {
92			$this->inlineScriptAllowed = $state;
93			return $this;
94			}
95
96			/**
97			* Use the according JS nonce
98			*
99			* @param string $nonce
100			* @return $this
101			* @since 11.0.0
102			*/
103			public function useJsNonce($nonce) {
104			$this->useJsNonce = $nonce;
105			return $this;
106			}
107
108			/**
109			* Whether eval in JavaScript is allowed or forbidden
110			* @param bool $state
111			* @return $this
112			* @since 8.1.0
113			*/
114			public function allowEvalScript($state = true) {
115			$this->evalScriptAllowed = $state;
116			return $this;
117			}
118
119			/**
120			* Allows to execute JavaScript files from a specific domain. Use * to
121			* allow JavaScript from all domains.
122			* @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
123			* @return $this
124			* @since 8.1.0
125			*/
126			public function addAllowedScriptDomain($domain) {
127			$this->allowedScriptDomains[] = $domain;
128			return $this;
129			}
130
131			/**
132			* Remove the specified allowed script domain from the allowed domains.
133			*
134			* @param string $domain
135			* @return $this
136			* @since 8.1.0
137			*/
138			public function disallowScriptDomain($domain) {
139			$this->allowedScriptDomains = array_diff($this->allowedScriptDomains, [$domain]);
140			return $this;
141			}
142
143			/**
144			* Whether inline CSS snippets are allowed or forbidden
145			* @param bool $state
146			* @return $this
147			* @since 8.1.0
148			*/
149			public function allowInlineStyle($state = true) {
150			$this->inlineStyleAllowed = $state;
151			return $this;
152			}
153
154			/**
155			* Allows to execute CSS files from a specific domain. Use * to allow
156			* CSS from all domains.
157			* @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
158			* @return $this
159			* @since 8.1.0
160			*/
161			public function addAllowedStyleDomain($domain) {
162			$this->allowedStyleDomains[] = $domain;
163			return $this;
164			}
165
166			/**
167			* Remove the specified allowed style domain from the allowed domains.
168			*
169			* @param string $domain
170			* @return $this
171			* @since 8.1.0
172			*/
173			public function disallowStyleDomain($domain) {
174			$this->allowedStyleDomains = array_diff($this->allowedStyleDomains, [$domain]);
175			return $this;
176			}
177
178			/**
179			* Allows using fonts from a specific domain. Use * to allow
180			* fonts from all domains.
181			* @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
182			* @return $this
183			* @since 8.1.0
184			*/
185			public function addAllowedFontDomain($domain) {
186			$this->allowedFontDomains[] = $domain;
187			return $this;
188			}
189
190			/**
191			* Remove the specified allowed font domain from the allowed domains.
192			*
193			* @param string $domain
194			* @return $this
195			* @since 8.1.0
196			*/
197			public function disallowFontDomain($domain) {
198			$this->allowedFontDomains = array_diff($this->allowedFontDomains, [$domain]);
199			return $this;
200			}
201
202			/**
203			* Allows embedding images from a specific domain. Use * to allow
204			* images from all domains.
205			* @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
206			* @return $this
207			* @since 8.1.0
208			*/
209			public function addAllowedImageDomain($domain) {
210			$this->allowedImageDomains[] = $domain;
211			return $this;
212			}
213
214			/**
215			* Remove the specified allowed image domain from the allowed domains.
216			*
217			* @param string $domain
218			* @return $this
219			* @since 8.1.0
220			*/
221			public function disallowImageDomain($domain) {
222			$this->allowedImageDomains = array_diff($this->allowedImageDomains, [$domain]);
223			return $this;
224			}
225
226			/**
227			* To which remote domains the JS connect to.
228			* @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
229			* @return $this
230			* @since 8.1.0
231			*/
232			public function addAllowedConnectDomain($domain) {
233			$this->allowedConnectDomains[] = $domain;
234			return $this;
235			}
236
237			/**
238			* Remove the specified allowed connect domain from the allowed domains.
239			*
240			* @param string $domain
241			* @return $this
242			* @since 8.1.0
243			*/
244			public function disallowConnectDomain($domain) {
245			$this->allowedConnectDomains = array_diff($this->allowedConnectDomains, [$domain]);
246			return $this;
247			}
248
249			/**
250			* From which domains media elements can be embedded.
251			* @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
252			* @return $this
253			* @since 8.1.0
254			*/
255			public function addAllowedMediaDomain($domain) {
256			$this->allowedMediaDomains[] = $domain;
257			return $this;
258			}
259
260			/**
261			* Remove the specified allowed media domain from the allowed domains.
262			*
263			* @param string $domain
264			* @return $this
265			* @since 8.1.0
266			*/
267			public function disallowMediaDomain($domain) {
268			$this->allowedMediaDomains = array_diff($this->allowedMediaDomains, [$domain]);
269			return $this;
270			}
271
272			/**
273			* From which domains objects such as <object>, <embed> or <applet> are executed
274			* @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
275			* @return $this
276			* @since 8.1.0
277			*/
278			public function addAllowedObjectDomain($domain) {
279			$this->allowedObjectDomains[] = $domain;
280			return $this;
281			}
282
283			/**
284			* Remove the specified allowed object domain from the allowed domains.
285			*
286			* @param string $domain
287			* @return $this
288			* @since 8.1.0
289			*/
290			public function disallowObjectDomain($domain) {
291			$this->allowedObjectDomains = array_diff($this->allowedObjectDomains, [$domain]);
292			return $this;
293			}
294
295			/**
296			* Which domains can be embedded in an iframe
297			* @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
298			* @return $this
299			* @since 8.1.0
300			*/
301			public function addAllowedFrameDomain($domain) {
302			$this->allowedFrameDomains[] = $domain;
303			return $this;
304			}
305
306			/**
307			* Remove the specified allowed frame domain from the allowed domains.
308			*
309			* @param string $domain
310			* @return $this
311			* @since 8.1.0
312			*/
313			public function disallowFrameDomain($domain) {
314			$this->allowedFrameDomains = array_diff($this->allowedFrameDomains, [$domain]);
315			return $this;
316			}
317
318			/**
319			* Domains from which web-workers and nested browsing content can load elements
320			* @param string $domain Domain to whitelist. Any passed value needs to be properly sanitized.
321			* @return $this
322			* @since 8.1.0
323			* @deprecated 15.0.0 use addAllowedWorkerSrcDomains or addAllowedFrameDomain
324			*/
325			public function addAllowedChildSrcDomain($domain) {
326			$this->allowedChildSrcDomains[] = $domain;
327			return $this;
328			}
329
330			/**
331			* Remove the specified allowed child src domain from the allowed domains.
332			*
333			* @param string $domain
334			* @return $this
335			* @since 8.1.0
336			* @deprecated 15.0.0 use the WorkerSrcDomains or FrameDomain
337			*/
338			public function disallowChildSrcDomain($domain) {
339			$this->allowedChildSrcDomains = array_diff($this->allowedChildSrcDomains, [$domain]);
340			return $this;
341			}
342
343			/**
344			* Domains which can embed an iFrame of the Nextcloud instance
345			*
346			* @param string $domain
347			* @return $this
348			* @since 13.0.0
349			*/
350			public function addAllowedFrameAncestorDomain($domain) {
351			$this->allowedFrameAncestors[] = $domain;
352			return $this;
353			}
354
355			/**
356			* Domains which can embed an iFrame of the Nextcloud instance
357			*
358			* @param string $domain
359			* @return $this
360			* @since 13.0.0
361			*/
362			public function disallowFrameAncestorDomain($domain) {
363			$this->allowedFrameAncestors = array_diff($this->allowedFrameAncestors, [$domain]);
364			return $this;
365			}
366
367			/**
368			* Domain from which workers can be loaded
369			*
370			* @param string $domain
371			* @return $this
372			* @since 15.0.0
373			*/
374			public function addAllowedWorkerSrcDomain(string $domain) {
375			$this->allowedWorkerSrcDomains[] = $domain;
376			return $this;
377			}
378
379			/**
380			* Remove domain from which workers can be loaded
381			*
382			* @param string $domain
383			* @return $this
384			* @since 15.0.0
385			*/
386			public function disallowWorkerSrcDomain(string $domain) {
387			$this->allowedWorkerSrcDomains = array_diff($this->allowedWorkerSrcDomains, [$domain]);
388			return $this;
389			}
390
391			/**
392			* Domain to where forms can submit
393			*
394			* @since 17.0.0
395			*
396			* @return $this
397			*/
398			public function addAllowedFormActionDomain(string $domain) {
399			$this->allowedFormActionDomains[] = $domain;
400			return $this;
401			}
402
403			/**
404			* Remove domain to where forms can submit
405			*
406			* @return $this
407			* @since 17.0.0
408			*/
409			public function disallowFormActionDomain(string $domain) {
410			$this->allowedFormActionDomains = array_diff($this->allowedFormActionDomains, [$domain]);
411			return $this;
412			}
413
414			/**
415			* Add location to report CSP violations to
416			*
417			* @param string $location
418			* @return $this
419			* @since 15.0.0
420			*/
421			public function addReportTo(string $location) {
422			$this->reportTo[] = $location;
423			return $this;
424			}
425
426			/**
427			* Get the generated Content-Security-Policy as a string
428			* @return string
429			* @since 8.1.0
430			*/
431			public function buildPolicy() {
432			$policy = "default-src 'none';";
433			$policy .= "base-uri 'none';";
434			$policy .= "manifest-src 'self';";
435
436			if(!empty($this->allowedScriptDomains) \|\| $this->inlineScriptAllowed \|\| $this->evalScriptAllowed) {
437			$policy .= 'script-src ';
438			if(is_string($this->useJsNonce)) {
			0 ignored issues – show introduced 2018-10-24 12:40 UTC by Report Bug Copy Issue Report The condition `is_string($this->useJsNonce)` is always `true`. Loading history...
439			$policy .= '\'nonce-'.base64_encode($this->useJsNonce).'\'';
440			$allowedScriptDomains = array_flip($this->allowedScriptDomains);
441			unset($allowedScriptDomains['\'self\'']);
442			$this->allowedScriptDomains = array_flip($allowedScriptDomains);
443			if(count($allowedScriptDomains) !== 0) {
444			$policy .= ' ';
445			}
446			}
447			if(is_array($this->allowedScriptDomains)) {
448			$policy .= implode(' ', $this->allowedScriptDomains);
449			}
450			if($this->inlineScriptAllowed) {
451			$policy .= ' \'unsafe-inline\'';
452			}
453			if($this->evalScriptAllowed) {
454			$policy .= ' \'unsafe-eval\'';
455			}
456			$policy .= ';';
457			}
458
459			if(!empty($this->allowedStyleDomains) \|\| $this->inlineStyleAllowed) {
460			$policy .= 'style-src ';
461			if(is_array($this->allowedStyleDomains)) {
462			$policy .= implode(' ', $this->allowedStyleDomains);
463			}
464			if($this->inlineStyleAllowed) {
465			$policy .= ' \'unsafe-inline\'';
466			}
467			$policy .= ';';
468			}
469
470			if(!empty($this->allowedImageDomains)) {
471			$policy .= 'img-src ' . implode(' ', $this->allowedImageDomains);
472			$policy .= ';';
473			}
474
475			if(!empty($this->allowedFontDomains)) {
476			$policy .= 'font-src ' . implode(' ', $this->allowedFontDomains);
477			$policy .= ';';
478			}
479
480			if(!empty($this->allowedConnectDomains)) {
481			$policy .= 'connect-src ' . implode(' ', $this->allowedConnectDomains);
482			$policy .= ';';
483			}
484
485			if(!empty($this->allowedMediaDomains)) {
486			$policy .= 'media-src ' . implode(' ', $this->allowedMediaDomains);
487			$policy .= ';';
488			}
489
490			if(!empty($this->allowedObjectDomains)) {
491			$policy .= 'object-src ' . implode(' ', $this->allowedObjectDomains);
492			$policy .= ';';
493			}
494
495			if(!empty($this->allowedFrameDomains)) {
496			$policy .= 'frame-src ';
497			if(is_string($this->useJsNonce)) {
			0 ignored issues – show introduced 2019-03-18 15:27 UTC by Report Bug Copy Issue Report The condition `is_string($this->useJsNonce)` is always `true`. Loading history...
498			$policy .= '\'nonce-' . base64_encode($this->useJsNonce) . '\' ';
499			}
500			$policy .= implode(' ', $this->allowedFrameDomains);
501			$policy .= ';';
502			}
503
504			if(!empty($this->allowedChildSrcDomains)) {
505			$policy .= 'child-src ' . implode(' ', $this->allowedChildSrcDomains);
506			$policy .= ';';
507			}
508
509			if(!empty($this->allowedFrameAncestors)) {
510			$policy .= 'frame-ancestors ' . implode(' ', $this->allowedFrameAncestors);
511			$policy .= ';';
512			}
513
514			if (!empty($this->allowedWorkerSrcDomains)) {
515			$policy .= 'worker-src ' . implode(' ', $this->allowedWorkerSrcDomains);
516			$policy .= ';';
517			}
518
519			if (!empty($this->allowedFormActionDomains)) {
520			$policy .= 'form-action ' . implode(' ', $this->allowedFormActionDomains);
521			$policy .= ';';
522			}
523
524			if (!empty($this->reportTo)) {
525			$policy .= 'report-uri ' . implode(' ', $this->reportTo);
526			$policy .= ';';
527			}
528
529			return rtrim($policy, ';');
530			}
531			}
532

nextcloud / server

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disallowFormActionDomain() A

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