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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef __nsSiteSecurityService_h__
#define __nsSiteSecurityService_h__
#include "mozilla/DataStorage.h"
#include "nsCOMPtr.h"
#include "nsIObserver.h"
#include "nsISiteSecurityService.h"
#include "nsString.h"
#include "nsTArray.h"
#include "pkix/pkixtypes.h"
#include "prtime.h"
class nsIURI;
class nsISSLStatus;
// {16955eee-6c48-4152-9309-c42a465138a1}
#define NS_SITE_SECURITY_SERVICE_CID \
{0x16955eee, 0x6c48, 0x4152, \
{0x93, 0x09, 0xc4, 0x2a, 0x46, 0x51, 0x38, 0xa1} }
/**
* SecurityPropertyState: A utility enum for representing the different states
* a security property can be in.
* SecurityPropertySet and SecurityPropertyUnset correspond to indicating
* a site has or does not have the security property in question, respectively.
* SecurityPropertyKnockout indicates a value on a preloaded list is being
* overridden, and the associated site does not have the security property
* in question.
*/
enum SecurityPropertyState {
SecurityPropertyUnset = 0,
SecurityPropertySet = 1,
SecurityPropertyKnockout = 2,
SecurityPropertyNegative = 3,
};
/**
* SiteHPKPState: A utility class that encodes/decodes a string describing
* the public key pins of a site.
* HPKP state consists of:
* - Expiry time (PRTime (aka int64_t) in milliseconds)
* - A state flag (SecurityPropertyState, default SecurityPropertyUnset)
* - An include subdomains flag (bool, default false)
* - An array of sha-256 hashed base 64 encoded fingerprints of required keys
*/
class SiteHPKPState
{
public:
SiteHPKPState();
explicit SiteHPKPState(nsCString& aStateString);
SiteHPKPState(PRTime aExpireTime, SecurityPropertyState aState,
bool aIncludeSubdomains, nsTArray<nsCString>& SHA256keys);
PRTime mExpireTime;
SecurityPropertyState mState;
bool mIncludeSubdomains;
nsTArray<nsCString> mSHA256keys;
bool IsExpired(mozilla::pkix::Time aTime)
{
if (aTime > mozilla::pkix::TimeFromEpochInSeconds(mExpireTime /
PR_MSEC_PER_SEC)) {
return true;
}
return false;
}
void ToString(nsCString& aString);
};
/**
* SiteHSTSState: A utility class that encodes/decodes a string describing
* the security state of a site. Currently only handles HSTS.
* HSTS state consists of:
* - Expiry time (PRTime (aka int64_t) in milliseconds)
* - A state flag (SecurityPropertyState, default SecurityPropertyUnset)
* - An include subdomains flag (bool, default false)
*/
class SiteHSTSState
{
public:
explicit SiteHSTSState(nsCString& aStateString);
SiteHSTSState(PRTime aHSTSExpireTime, SecurityPropertyState aHSTSState,
bool aHSTSIncludeSubdomains);
PRTime mHSTSExpireTime;
SecurityPropertyState mHSTSState;
bool mHSTSIncludeSubdomains;
bool IsExpired(uint32_t aType)
{
// If mHSTSExpireTime is 0, this entry never expires (this is the case for
// knockout entries).
if (mHSTSExpireTime == 0) {
return false;
}
PRTime now = PR_Now() / PR_USEC_PER_MSEC;
if (now > mHSTSExpireTime) {
return true;
}
return false;
}
void ToString(nsCString &aString);
};
class nsSTSPreload;
class nsSiteSecurityService : public nsISiteSecurityService
, public nsIObserver
{
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIOBSERVER
NS_DECL_NSISITESECURITYSERVICE
nsSiteSecurityService();
nsresult Init();
protected:
virtual ~nsSiteSecurityService();
private:
nsresult GetHost(nsIURI *aURI, nsACString &aResult);
nsresult SetHSTSState(uint32_t aType, nsIURI* aSourceURI, int64_t maxage,
bool includeSubdomains, uint32_t flags,
SecurityPropertyState aHSTSState);
nsresult ProcessHeaderInternal(uint32_t aType, nsIURI* aSourceURI,
const char* aHeader, nsISSLStatus* aSSLStatus,
uint32_t aFlags, uint64_t* aMaxAge,
bool* aIncludeSubdomains,
uint32_t* aFailureResult);
nsresult ProcessSTSHeader(nsIURI* aSourceURI, const char* aHeader,
uint32_t flags, uint64_t* aMaxAge,
bool* aIncludeSubdomains, uint32_t* aFailureResult);
nsresult ProcessPKPHeader(nsIURI* aSourceURI, const char* aHeader,
nsISSLStatus* aSSLStatus, uint32_t flags,
uint64_t* aMaxAge, bool* aIncludeSubdomains,
uint32_t* aFailureResult);
nsresult SetHPKPState(const char* aHost, SiteHPKPState& entry, uint32_t flags,
bool aIsPreload);
const nsSTSPreload *GetPreloadListEntry(const char *aHost);
uint64_t mMaxMaxAge;
bool mUsePreloadList;
bool mUseStsService;
int64_t mPreloadListTimeOffset;
bool mHPKPEnabled;
bool mProcessPKPHeadersFromNonBuiltInRoots;
RefPtr<mozilla::DataStorage> mSiteStateStorage;
RefPtr<mozilla::DataStorage> mPreloadStateStorage;
};
#endif // __nsSiteSecurityService_h__
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