Collaboration diagram for ContentSecurityPolicy:

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Public Member Functions
	__construct ( $nonce, WebResponse $response, Config $mwConfig)

	sendCSPHeader ( $csp, $reportOnly)
	Send a single CSP header based on a given policy config.

Static Public Member Functions
static	falsePositiveBrowser ( $ua)
	Does this browser give false positive reports?

static	isNonceRequired (Config $config)
	Should we set nonce attribute.

static	sendHeaders (IContextSource $context)
	Send CSP headers based on wiki config.

Public Attributes
const	FULL_MODE = 2

const	REPORT_ONLY_MODE = 1

Private Member Functions
	escapeUrlForCSP ( $url)
	CSP spec says ',' and ';' are not allowed to appear in urls.

	getAdditionalSelfUrls ()
	Get additional host names for the wiki (e.g.

	getAdditionalSelfUrlsScript ()
	Get additional script sources.

	getCORSSources ()
	include domains that are allowed to send us CORS requests.

	getHeaderName ( $reportOnly)
	Get the name of the HTTP header to use.

	getReportUri ( $mode)
	Get the default report uri.

	makeCSPDirectives ( $policyConfig, $mode)
	Determine what CSP policies to set for this page.

	prepareUrlForCSP ( $url)
	Given a url, convert to form needed for CSP.

Private Attributes
Config	$mwConfig
	The site configuration object.

string	$nonce
	The nonce to use for inline scripts (from OutputPage)

WebResponse	$response

Detailed Description

Definition at line 27 of file ContentSecurityPolicy.php.

Constructor & Destructor Documentation

◆ __construct()

ContentSecurityPolicy::__construct	(		$nonce,
		WebResponse	$response,
		Config	$mwConfig
	)

Parameters

string	$nonce
WebResponse	$response
Config	$mwConfig

Definition at line 43 of file ContentSecurityPolicy.php.

References $mwConfig, $nonce, and $response.

Member Function Documentation

◆ escapeUrlForCSP()

ContentSecurityPolicy::escapeUrlForCSP ( $url )

private

CSP spec says ',' and ';' are not allowed to appear in urls.

Note: This assumes that normal escaping has been applied to the url

Parameters

string $url URL (or possibly just part of one)

Returns: string

Definition at line 452 of file ContentSecurityPolicy.php.

Referenced by getReportUri(), makeCSPDirectives(), and prepareUrlForCSP().

◆ falsePositiveBrowser()

static ContentSecurityPolicy::falsePositiveBrowser ( $ua )

static

Does this browser give false positive reports?

Some versions of firefox (40-42) incorrectly report a csp violation for nonce sources, despite allowing them.

See also: https://bugzilla.mozilla.org/show_bug.cgi?id=1026520

Parameters

string $ua User-agent header

Returns: bool

Definition at line 470 of file ContentSecurityPolicy.php.

Referenced by ApiCSPReport\getFlags().

◆ getAdditionalSelfUrls()

ContentSecurityPolicy::getAdditionalSelfUrls ( )

private

Get additional host names for the wiki (e.g.

if static content loaded elsewhere)

Note: These are general load sources, not script sources

Returns: array Array of other urls for wiki (for use in default-src)

Definition at line 369 of file ContentSecurityPolicy.php.

References $path, $urls, and prepareUrlForCSP().

Referenced by makeCSPDirectives().

◆ getAdditionalSelfUrlsScript()

ContentSecurityPolicy::getAdditionalSelfUrlsScript ( )

private

Get additional script sources.

Returns: array Additional sources for loading scripts from

Definition at line 338 of file ContentSecurityPolicy.php.

References $path, and prepareUrlForCSP().

Referenced by makeCSPDirectives().

◆ getCORSSources()

ContentSecurityPolicy::getCORSSources ( )

private

include domains that are allowed to send us CORS requests.

Technically, $wgCrossSiteAJAXdomains lists things that are allowed to talk to us not things that we are allowed to talk to - but if something is allowed to talk to us, then there is a good chance that we should probably be allowed to talk to it.

This is configurable with the 'includeCORS' key in the CSP config, and enabled by default.

Note: CORS domains with single character ('?') wildcards, are not included.

Returns: array Additional hosts

Definition at line 429 of file ContentSecurityPolicy.php.

References $source, and prepareUrlForCSP().

Referenced by makeCSPDirectives().

◆ getHeaderName()

ContentSecurityPolicy::getHeaderName ( $reportOnly )

private

Get the name of the HTTP header to use.

Parameters

int $reportOnly Either self::REPORT_ONLY_MODE or self::FULL_MODE

Returns: string Name of http header

Exceptions

UnexpectedValueException

Definition at line 103 of file ContentSecurityPolicy.php.

Referenced by sendCSPHeader().

◆ getReportUri()

ContentSecurityPolicy::getReportUri ( $mode )

private

Get the default report uri.

Parameters

int $mode self::*_MODE constant.

Returns: string The URI to send reports to.

Exceptions

UnexpectedValueException if given invalid mode.

Definition at line 272 of file ContentSecurityPolicy.php.

References escapeUrlForCSP(), wfAppendQuery(), and wfScript().

Referenced by makeCSPDirectives().

◆ isNonceRequired()

static ContentSecurityPolicy::isNonceRequired ( Config $config )

static

Should we set nonce attribute.

Parameters

Config $config Configuration object

Returns: bool

Definition at line 480 of file ContentSecurityPolicy.php.

References Config\get().

Referenced by OutputPage\getCSPNonce(), Html\inlineScript(), and Html\linkedScript().

◆ makeCSPDirectives()

ContentSecurityPolicy::makeCSPDirectives	(	$policyConfig,
		$mode
	)

private

Determine what CSP policies to set for this page.

Parameters

array \| bool	$policyConfig	Policy configuration (Either $wgCSPHeader or $wgCSPReportOnlyHeader)
int	$mode	self::REPORT_ONLY_MODE, self::FULL_MODE

Returns: string Policy directives, or empty string for no policy.

Definition at line 122 of file ContentSecurityPolicy.php.

References $mwConfig, escapeUrlForCSP(), Config\get(), getAdditionalSelfUrls(), getAdditionalSelfUrlsScript(), getCORSSources(), getReportUri(), and wfMessage().

Referenced by sendCSPHeader().

◆ prepareUrlForCSP()

ContentSecurityPolicy::prepareUrlForCSP ( $url )

private

Given a url, convert to form needed for CSP.

Currently this does either scheme + host, or if protocol relative, just the host. Future versions could potentially preserve some of the path, if its determined that that would be a good idea.

Note: This does the extra escaping for CSP, but assumes the url has already had normal url escaping applied.; This discards urls same as server name, as 'self' directive takes care of that.

Parameters

string $url

Returns: string|bool Converted url or false on failure

Definition at line 305 of file ContentSecurityPolicy.php.

References escapeUrlForCSP(), and wfParseUrl().

Referenced by getAdditionalSelfUrls(), getAdditionalSelfUrlsScript(), and getCORSSources().

◆ sendCSPHeader()

ContentSecurityPolicy::sendCSPHeader	(	$csp,
		$reportOnly
	)

Send a single CSP header based on a given policy config.

Note: Most callers will probably want ContentSecurityPolicy::sendHeaders() instead.

Parameters

array	$csp	ContentSecurityPolicy configuration
int	$reportOnly	self::*_MODE constant

Definition at line 56 of file ContentSecurityPolicy.php.

References getHeaderName(), and makeCSPDirectives().

◆ sendHeaders()

static ContentSecurityPolicy::sendHeaders ( IContextSource $context )

static

Send CSP headers based on wiki config.

Main method that callers are expected to use

Parameters

IContextSource $context A context object, the associated OutputPage object must be the one that the page in question was generated with.

Definition at line 73 of file ContentSecurityPolicy.php.

References $context.

Referenced by OutputPage\output().

Member Data Documentation

◆ $mwConfig

Config ContentSecurityPolicy::$mwConfig

private

The site configuration object.

Definition at line 34 of file ContentSecurityPolicy.php.

Referenced by __construct(), and makeCSPDirectives().

◆ $nonce

string ContentSecurityPolicy::$nonce

private

The nonce to use for inline scripts (from OutputPage)

Definition at line 32 of file ContentSecurityPolicy.php.

Referenced by __construct().

◆ $response

WebResponse ContentSecurityPolicy::$response

private

Definition at line 36 of file ContentSecurityPolicy.php.

Referenced by __construct().

◆ FULL_MODE

const ContentSecurityPolicy::FULL_MODE = 2

Definition at line 29 of file ContentSecurityPolicy.php.

◆ REPORT_ONLY_MODE

const ContentSecurityPolicy::REPORT_ONLY_MODE = 1

Definition at line 28 of file ContentSecurityPolicy.php.

The documentation for this class was generated from the following file:

includes/ContentSecurityPolicy.php

Public Member Functions

Static Public Member Functions

Public Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ escapeUrlForCSP()

◆ falsePositiveBrowser()

◆ getAdditionalSelfUrls()

◆ getAdditionalSelfUrlsScript()

◆ getCORSSources()

◆ getHeaderName()

◆ getReportUri()

◆ isNonceRequired()

◆ makeCSPDirectives()

◆ prepareUrlForCSP()

◆ sendCSPHeader()

◆ sendHeaders()

Member Data Documentation

◆ $mwConfig

◆ $nonce

◆ $response

◆ FULL_MODE

◆ REPORT_ONLY_MODE