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125 lines
3.0 KiB
C++
125 lines
3.0 KiB
C++
//* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* 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 "nsIEffectiveTLDService.h"
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#include "nsIMemoryReporter.h"
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#include "nsTHashtable.h"
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#include "nsString.h"
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#include "nsCOMPtr.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/MemoryReporting.h"
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class nsIIDNService;
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#define ETLD_ENTRY_N_INDEX_BITS 30
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// struct for static data generated from effective_tld_names.dat
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struct ETLDEntry {
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uint32_t strtab_index : ETLD_ENTRY_N_INDEX_BITS;
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uint32_t exception : 1;
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uint32_t wild : 1;
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};
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// hash entry class
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class nsDomainEntry : public PLDHashEntryHdr
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{
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friend class nsEffectiveTLDService;
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public:
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// Hash methods
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typedef const char* KeyType;
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typedef const char* KeyTypePointer;
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nsDomainEntry(KeyTypePointer aEntry)
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{
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}
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nsDomainEntry(const nsDomainEntry& toCopy)
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{
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// if we end up here, things will break. nsTHashtable shouldn't
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// allow this, since we set ALLOW_MEMMOVE to true.
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NS_NOTREACHED("nsDomainEntry copy constructor is forbidden!");
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}
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~nsDomainEntry()
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{
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}
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KeyType GetKey() const
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{
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return GetEffectiveTLDName(mData->strtab_index);
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}
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bool KeyEquals(KeyTypePointer aKey) const
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{
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return !strcmp(GetKey(), aKey);
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}
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static KeyTypePointer KeyToPointer(KeyType aKey)
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{
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return aKey;
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}
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static PLDHashNumber HashKey(KeyTypePointer aKey)
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{
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// PL_DHashStringKey doesn't use the table parameter, so we can safely
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// pass nullptr
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return PL_DHashStringKey(nullptr, aKey);
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}
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enum { ALLOW_MEMMOVE = true };
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void SetData(const ETLDEntry* entry) { mData = entry; }
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bool IsNormal() { return mData->wild || !mData->exception; }
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bool IsException() { return mData->exception; }
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bool IsWild() { return mData->wild; }
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static const char *GetEffectiveTLDName(size_t idx)
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{
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return strings.strtab + idx;
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}
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private:
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const ETLDEntry* mData;
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#define ETLD_STR_NUM_1(line) str##line
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#define ETLD_STR_NUM(line) ETLD_STR_NUM_1(line)
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struct etld_string_list {
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#define ETLD_ENTRY(name, ex, wild) char ETLD_STR_NUM(__LINE__)[sizeof(name)];
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#include "etld_data.inc"
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#undef ETLD_ENTRY
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};
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static const union etld_strings {
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struct etld_string_list list;
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char strtab[1];
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} strings;
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static const ETLDEntry entries[];
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void FuncForStaticAsserts(void);
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#undef ETLD_STR_NUM
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#undef ETLD_STR_NUM1
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};
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class nsEffectiveTLDService MOZ_FINAL : public nsIEffectiveTLDService
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIEFFECTIVETLDSERVICE
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nsEffectiveTLDService();
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nsresult Init();
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf);
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private:
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nsresult GetBaseDomainInternal(nsCString &aHostname, int32_t aAdditionalParts, nsACString &aBaseDomain);
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nsresult NormalizeHostname(nsCString &aHostname);
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~nsEffectiveTLDService();
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nsCOMPtr<nsIMemoryReporter> mReporter;
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nsTHashtable<nsDomainEntry> mHash;
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nsCOMPtr<nsIIDNService> mIDNService;
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};
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