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240 lines
9.5 KiB
Plaintext
240 lines
9.5 KiB
Plaintext
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISerializable.idl"
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interface nsIURI;
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interface nsIChannel;
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interface nsIDocShell;
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interface nsIPrincipal;
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/**
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* nsIContentSecurityPolicy
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* Describes an XPCOM component used to model and enforce CSPs. Instances of
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* this class may have multiple policies within them, but there should only be
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* one of these per document/principal.
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*/
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[scriptable, uuid(8b91f829-b1bf-4327-8ece-4000aa823394)]
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interface nsIContentSecurityPolicy : nsISerializable
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{
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/**
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* Set to true when the CSP has been read in and parsed and is ready to
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* enforce. This is a barrier for the nsDocument so it doesn't load any
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* sub-content until either it knows that a CSP is ready or will not be used.
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*/
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attribute boolean isInitialized;
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/**
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* Accessor method for a read-only string version of the policy at a given
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* index.
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*/
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AString getPolicy(in unsigned long index);
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/**
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* Returns the number of policies attached to this CSP instance. Useful with
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* getPolicy().
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*/
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attribute long policyCount;
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/**
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* Remove a policy associated with this CSP context.
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* @throws NS_ERROR_FAILURE if the index is out of bounds or invalid.
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*/
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void removePolicy(in unsigned long index);
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/**
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* Parse and install a CSP policy.
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* @param aPolicy
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* String representation of the policy (e.g., header value)
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* @param selfURI
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* the URI of the protected document/principal
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* @param reportOnly
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* Should this policy affect content, script and style processing or
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* just send reports if it is violated?
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* @param specCompliant
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* Whether or not the policy conforms to the W3C specification.
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* If this is false, that indicates this policy is from the older
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* implementation with different semantics and directive names.
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*/
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void appendPolicy(in AString policyString, in nsIURI selfURI,
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in boolean reportOnly, in boolean specCompliant);
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/**
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* Whether this policy allows in-page script.
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* @param shouldReportViolations
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* Whether or not the use of inline script should be reported.
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* This function always returns "true" for report-only policies, but when
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* any policy (report-only or otherwise) is violated,
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* shouldReportViolations is true as well.
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* @return
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* Whether or not the effects of the inline script should be allowed
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* (block the compilation if false).
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*/
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boolean getAllowsInlineScript(out boolean shouldReportViolations);
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/**
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* whether this policy allows eval and eval-like functions
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* such as setTimeout("code string", time).
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* @param shouldReportViolations
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* Whether or not the use of eval should be reported.
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* This function returns "true" when violating report-only policies, but
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* when any policy (report-only or otherwise) is violated,
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* shouldReportViolations is true as well.
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* @return
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* Whether or not the effects of the eval call should be allowed
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* (block the call if false).
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*/
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boolean getAllowsEval(out boolean shouldReportViolations);
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/**
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* Whether this policy allows in-page styles.
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* This includes <style> tags with text content and style="" attributes in
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* HTML elements.
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* @param shouldReportViolations
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* Whether or not the use of inline style should be reported.
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* If there are report-only policies, this function may return true
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* (don't block), but one or more policy may still want to send
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* violation reports so shouldReportViolations will be true even if the
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* inline style should be permitted.
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* @return
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* Whether or not the effects of the inline style should be allowed
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* (block the rules if false).
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*/
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boolean getAllowsInlineStyle(out boolean shouldReportViolations);
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/**
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* Whether this policy accepts the given nonce
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* @param aNonce
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* The nonce string to check against the policy
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* @param aContentType
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* The type of element on which we encountered this nonce
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* @param shouldReportViolation
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* Whether or not the use of an incorrect nonce should be reported.
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* This function always returns "true" for report-only policies, but when
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* the report-only policy is violated, shouldReportViolation is true as
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* well.
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* @return
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* Whether or not this nonce is valid
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*/
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boolean getAllowsNonce(in AString aNonce,
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in unsigned long aContentType,
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out boolean shouldReportViolation);
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/**
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* Whether this policy accepts the given inline resource based on the hash
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* of its content.
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* @param aContent
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* The content of the inline resource to hash (and compare to the
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* hashes listed in the policy)
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* @param aContentType
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* The type of inline element (script or style)
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* @param shouldReportViolation
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* Whether this inline resource should be reported as a hash-source
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* violation. If there are no hash-sources in the policy, this is
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* always false.
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* @return
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* Whether or not this inline resource is whitelisted by a hash-source
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*/
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boolean getAllowsHash(in AString aContent,
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in unsigned short aContentType,
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out boolean shouldReportViolation);
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/**
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* For each violated policy (of type violationType), log policy violation on
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* the Error Console and send a report to report-uris present in the violated
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* policies.
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*
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* @param violationType
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* one of the VIOLATION_TYPE_* constants, e.g. inline-script or eval
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* @param sourceFile
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* name of the source file containing the violation (if available)
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* @param contentSample
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* sample of the violating content (to aid debugging)
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* @param lineNum
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* source line number of the violation (if available)
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* @param aNonce
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* (optional) If this is a nonce violation, include the nonce so we can
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* recheck to determine which policies were violated and send the
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* appropriate reports.
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* @param aContent
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* (optional) If this is a hash violation, include contents of the inline
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* resource in the question so we can recheck the hash in order to
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* determine which policies were violated and send the appropriate
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* reports.
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*/
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void logViolationDetails(in unsigned short violationType,
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in AString sourceFile,
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in AString scriptSample,
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in int32_t lineNum,
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[optional] in AString nonce,
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[optional] in AString content);
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const unsigned short VIOLATION_TYPE_INLINE_SCRIPT = 1;
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const unsigned short VIOLATION_TYPE_EVAL = 2;
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const unsigned short VIOLATION_TYPE_INLINE_STYLE = 3;
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const unsigned short VIOLATION_TYPE_NONCE_SCRIPT = 4;
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const unsigned short VIOLATION_TYPE_NONCE_STYLE = 5;
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const unsigned short VIOLATION_TYPE_HASH_SCRIPT = 6;
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const unsigned short VIOLATION_TYPE_HASH_STYLE = 7;
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/**
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* Called after the CSP object is created to fill in appropriate request
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* context and give it a reference to its owning principal for violation
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* report generation.
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* This will use whatever data is available, choosing earlier arguments first
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* if multiple are available. Either way, it will attempt to obtain the URI,
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* referrer and the principal from whatever is available. If the channel is
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* available, it'll also store that for processing policy-uri directives.
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*/
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void setRequestContext(in nsIURI selfURI,
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in nsIURI referrer,
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in nsIPrincipal documentPrincipal,
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in nsIChannel aChannel);
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/**
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* Verifies ancestry as permitted by the policy.
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*
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* NOTE: Calls to this may trigger violation reports when queried, so this
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* value should not be cached.
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*
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* @param docShell
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* containing the protected resource
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* @return
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* true if the frame's ancestors are all allowed by policy (except for
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* report-only policies, which will send reports and then return true
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* here when violated).
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*/
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boolean permitsAncestry(in nsIDocShell docShell);
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/**
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* Delegate method called by the service when sub-elements of the protected
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* document are being loaded. Given a bit of information about the request,
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* decides whether or not the policy is satisfied.
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*
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* Calls to this may trigger violation reports when queried, so
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* this value should not be cached.
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*/
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short shouldLoad(in unsigned long aContentType,
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in nsIURI aContentLocation,
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in nsIURI aRequestOrigin,
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in nsISupports aContext,
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in ACString aMimeTypeGuess,
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in nsISupports aExtra);
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/**
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* Delegate method called by the service when sub-elements of the protected
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* document are being processed. Given a bit of information about the request,
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* decides whether or not the policy is satisfied.
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*/
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short shouldProcess(in unsigned long aContentType,
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in nsIURI aContentLocation,
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in nsIURI aRequestOrigin,
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in nsISupports aContext,
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in ACString aMimeType,
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in nsISupports aExtra);
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};
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