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Bug 1501206 - Introduce a new function ReferrerPolicyToString() r=ckerschb

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We may need this function to convert ReferrerPolicy enum to string then
we can display referrer policy applied to a request.

MozReview-Commit-ID: B3xPAiykcOV

Differential Revision: https://phabricator.services.mozilla.com/D9664

--HG--
extra : moz-landing-system : lando
This commit is contained in:
Thomas Nguyen 2018-10-25 13:53:21 +00:00
parent feb5e5a4da
commit 59d59ec231
2 changed files with 75 additions and 71 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
dom/html/nsGenericHTMLElement.cpp
View File

@ -1128,14 +1128,38 @@ nsGenericHTMLElement::ParseReferrerAttribute(const nsAString& aString,
nsAttrValue& aResult)
{
static const nsAttrValue::EnumTable kReferrerTable[] = {
{ net::kRPS_No_Referrer, static_cast<int16_t>(net::RP_No_Referrer) },
{ net::kRPS_Origin, static_cast<int16_t>(net::RP_Origin) },
{ net::kRPS_Origin_When_Cross_Origin, static_cast<int16_t>(net::RP_Origin_When_Crossorigin) },
{ net::kRPS_No_Referrer_When_Downgrade, static_cast<int16_t>(net::RP_No_Referrer_When_Downgrade) },
{ net::kRPS_Unsafe_URL, static_cast<int16_t>(net::RP_Unsafe_URL) },
{ net::kRPS_Strict_Origin, static_cast<int16_t>(net::RP_Strict_Origin) },
{ net::kRPS_Same_Origin, static_cast<int16_t>(net::RP_Same_Origin) },
{ net::kRPS_Strict_Origin_When_Cross_Origin, static_cast<int16_t>(net::RP_Strict_Origin_When_Cross_Origin) },
{
ReferrerPolicyToString(net::RP_No_Referrer),
static_cast<int16_t>(net::RP_No_Referrer)
},
{
ReferrerPolicyToString(net::RP_Origin),
static_cast<int16_t>(net::RP_Origin)
},
{
ReferrerPolicyToString(net::RP_Origin_When_Crossorigin),
static_cast<int16_t>(net::RP_Origin_When_Crossorigin)
},
{
ReferrerPolicyToString(net::RP_No_Referrer_When_Downgrade),
static_cast<int16_t>(net::RP_No_Referrer_When_Downgrade)
},
{
ReferrerPolicyToString(net::RP_Unsafe_URL),
static_cast<int16_t>(net::RP_Unsafe_URL)
},
{
ReferrerPolicyToString(net::RP_Strict_Origin),
static_cast<int16_t>(net::RP_Strict_Origin)
},
{
ReferrerPolicyToString(net::RP_Same_Origin),
static_cast<int16_t>(net::RP_Same_Origin)
},
{
ReferrerPolicyToString(net::RP_Strict_Origin_When_Cross_Origin),
static_cast<int16_t>(net::RP_Strict_Origin_When_Cross_Origin)
},
{ nullptr, 0 }
};
return aResult.ParseEnumValue(aString, kReferrerTable, false);

106
netwerk/base/ReferrerPolicy.h
View File

@ -41,33 +41,31 @@ enum ReferrerPolicy {
RP_Unset = nsIHttpChannel::REFERRER_POLICY_UNSET,
};
/* spec tokens: never no-referrer */
// Referrer Policy spec tokens. Order matters here, make sure it matches the
// order as in nsIHttpChannel.idl
static const char* kReferrerPolicyString[] = {
"", // REFERRER_POLICY_UNSET
"no-referrer-when-downgrade", // REFERRER_POLICY_NO_REFERRER_WHEN_DOWNGRADE
"no-referrer", // REFERRER_POLICY_NO_REFERRER
"origin", // REFERRER_POLICY_ORIGIN
"origin-when-cross-origin", // REFERRER_POLICY_ORIGIN_WHEN_XORIGIN
"unsafe-url", // REFERRER_POLICY_UNSAFE_URL
"same-origin", // REFERRER_POLICY_SAME_ORIGIN
"strict-origin", // REFERRER_POLICY_STRICT_ORIGIN
"strict-origin-when-cross-origin" // REFERRER_POLICY_STRICT_ORIGIN_WHEN_XORIGIN
};
/* spec tokens: never */
const char kRPS_Never[] = "never";
const char kRPS_No_Referrer[] = "no-referrer";
/* spec tokens: origin */
const char kRPS_Origin[] = "origin";
/* spec tokens: default no-referrer-when-downgrade */
/* spec tokens: default */
const char kRPS_Default[] = "default";
const char kRPS_No_Referrer_When_Downgrade[] = "no-referrer-when-downgrade";
/* spec tokens: origin-when-cross-origin */
const char kRPS_Origin_When_Cross_Origin[] = "origin-when-cross-origin";
/* spec tokens: origin-when-crossorigin */
const char kRPS_Origin_When_Crossorigin[] = "origin-when-crossorigin";
/* spec tokens: same-origin */
const char kRPS_Same_Origin[] = "same-origin";
/* spec tokens: strict-origin */
const char kRPS_Strict_Origin[] = "strict-origin";
/* spec tokens: strict-origin-when-cross-origin */
const char kRPS_Strict_Origin_When_Cross_Origin[] = "strict-origin-when-cross-origin";
/* spec tokens: always unsafe-url */
/* spec tokens: always */
const char kRPS_Always[] = "always";
const char kRPS_Unsafe_URL[] = "unsafe-url";
inline ReferrerPolicy
ReferrerPolicyFromString(const nsAString& content)
@ -80,32 +78,25 @@ ReferrerPolicyFromString(const nsAString& content)
ToLowerCase(lowerContent);
// This is implemented step by step as described in the Referrer Policy
// specification, section "Determine token's Policy".
if (lowerContent.EqualsLiteral(kRPS_Never) ||
lowerContent.EqualsLiteral(kRPS_No_Referrer)) {
uint16_t numStr =
(sizeof(kReferrerPolicyString) / sizeof(kReferrerPolicyString[0]));
for (uint16_t i = 0; i < numStr; i++) {
if (lowerContent.EqualsASCII(kReferrerPolicyString[i])) {
return static_cast<ReferrerPolicy>(i);
}
}
if (lowerContent.EqualsLiteral(kRPS_Never)) {
return RP_No_Referrer;
}
if (lowerContent.EqualsLiteral(kRPS_Origin)) {
return RP_Origin;
}
if (lowerContent.EqualsLiteral(kRPS_Default) ||
lowerContent.EqualsLiteral(kRPS_No_Referrer_When_Downgrade)) {
if (lowerContent.EqualsLiteral(kRPS_Default)) {
return RP_No_Referrer_When_Downgrade;
}
if (lowerContent.EqualsLiteral(kRPS_Origin_When_Cross_Origin) ||
lowerContent.EqualsLiteral(kRPS_Origin_When_Crossorigin)) {
if (lowerContent.EqualsLiteral(kRPS_Origin_When_Crossorigin)) {
return RP_Origin_When_Crossorigin;
}
if (lowerContent.EqualsLiteral(kRPS_Same_Origin)) {
return RP_Same_Origin;
}
if (lowerContent.EqualsLiteral(kRPS_Strict_Origin)) {
return RP_Strict_Origin;
}
if (lowerContent.EqualsLiteral(kRPS_Strict_Origin_When_Cross_Origin)) {
return RP_Strict_Origin_When_Cross_Origin;
}
if (lowerContent.EqualsLiteral(kRPS_Always) ||
lowerContent.EqualsLiteral(kRPS_Unsafe_URL)) {
if (lowerContent.EqualsLiteral(kRPS_Always)) {
return RP_Unsafe_URL;
}
// Spec says if none of the previous match, use empty string.
@ -125,29 +116,12 @@ AttributeReferrerPolicyFromString(const nsAString& content)
nsString lowerContent(content);
ToLowerCase(lowerContent);
if (lowerContent.EqualsLiteral(kRPS_No_Referrer)) {
return RP_No_Referrer;
}
if (lowerContent.EqualsLiteral(kRPS_Origin)) {
return RP_Origin;
}
if (lowerContent.EqualsLiteral(kRPS_No_Referrer_When_Downgrade)) {
return RP_No_Referrer_When_Downgrade;
}
if (lowerContent.EqualsLiteral(kRPS_Origin_When_Cross_Origin)) {
return RP_Origin_When_Crossorigin;
}
if (lowerContent.EqualsLiteral(kRPS_Unsafe_URL)) {
return RP_Unsafe_URL;
}
if (lowerContent.EqualsLiteral(kRPS_Strict_Origin)) {
return RP_Strict_Origin;
}
if (lowerContent.EqualsLiteral(kRPS_Same_Origin)) {
return RP_Same_Origin;
}
if (lowerContent.EqualsLiteral(kRPS_Strict_Origin_When_Cross_Origin)) {
return RP_Strict_Origin_When_Cross_Origin;
uint16_t numStr =
(sizeof(kReferrerPolicyString) / sizeof(kReferrerPolicyString[0]));
for (uint16_t i = 0; i < numStr; i++) {
if (lowerContent.EqualsASCII(kReferrerPolicyString[i])) {
return static_cast<ReferrerPolicy>(i);
}
}
// Spec says invalid value default is empty string state
@ -155,6 +129,12 @@ AttributeReferrerPolicyFromString(const nsAString& content)
return RP_Unset;
}
inline const char*
ReferrerPolicyToString(ReferrerPolicy aPolicy)
{
return kReferrerPolicyString[static_cast<uint32_t>(aPolicy)];
}
} // namespace net
} // namespace mozilla