wine/gecko
0
0
Fork 0
mirror of https://gitlab.winehq.org/wine/wine-gecko.git synced 2024-09-13 09:24:08 -07:00
Code Issues Packages Projects Releases Wiki Activity
142af36a13
gecko/dom/cache/DBSchema.cpp
Ehsan Akhgari f2a66701c9 Bug 1142269 - Auto-vacuum the DOM Cache database; r=bkelly 
It's easiest if we use auto_vaccum for now.  In the future if this
proves to be insufficient we can look into more sophisticated
vacuuming strategies.
2015-03-13 19:21:13 -04:00

1334 lines
40 KiB
C++
Raw Blame History

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#include "mozilla/dom/cache/DBSchema.h"
#include "ipc/IPCMessageUtils.h"
#include "mozilla/dom/InternalHeaders.h"
#include "mozilla/dom/cache/PCacheTypes.h"
#include "mozilla/dom/cache/SavedTypes.h"
#include "mozIStorageConnection.h"
#include "mozIStorageStatement.h"
#include "nsCOMPtr.h"
#include "nsTArray.h"
namespace mozilla {
namespace dom {
namespace cache {
const int32_t DBSchema::kMaxWipeSchemaVersion = 3;
const int32_t DBSchema::kLatestSchemaVersion = 3;
const int32_t DBSchema::kMaxEntriesPerStatement = 255;
using mozilla::void_t;
// static
nsresult
DBSchema::CreateSchema(mozIStorageConnection* aConn)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
nsAutoCString pragmas(
#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
// Switch the journaling mode to TRUNCATE to avoid changing the directory
// structure at the conclusion of every transaction for devices with slower
// file systems.
"PRAGMA journal_mode = TRUNCATE; "
#endif
"PRAGMA foreign_keys = ON; "
// Enable auto-vaccum but in incremental mode in order to avoid doing a lot
// of work at the end of each transaction.
"PRAGMA auto_vacuum = INCREMENTAL; "
// Note, the default encoding of UTF-8 is preferred. mozStorage does all
// the work necessary to convert UTF-16 nsString values for us. We don't
// need ordering and the binary equality operations are correct. So, do
// NOT set PRAGMA encoding to UTF-16.
);
nsresult rv = aConn->ExecuteSimpleSQL(pragmas);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
int32_t schemaVersion;
rv = aConn->GetSchemaVersion(&schemaVersion);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
if (schemaVersion == kLatestSchemaVersion) {
// We already have the correct schema, so just do an incremental vaccum and
// get started.
rv = aConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"PRAGMA incremental_vacuum;"));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
return rv;
}
if (!schemaVersion) {
// The caches table is the single source of truth about what Cache
// objects exist for the origin. The contents of the Cache are stored
// in the entries table that references back to caches.
//
// The caches table is also referenced from storage. Rows in storage
// represent named Cache objects. There are cases, however, where
// a Cache can still exist, but not be in a named Storage. For example,
// when content is still using the Cache after CacheStorage::Delete()
// has been run.
//
// For now, the caches table mainly exists for data integrity with
// foreign keys, but could be expanded to contain additional cache object
// information.
rv = aConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE caches ("
"id INTEGER NOT NULL PRIMARY KEY "
");"
));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = aConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE entries ("
"id INTEGER NOT NULL PRIMARY KEY, "
"request_method TEXT NOT NULL, "
"request_url TEXT NOT NULL, "
"request_url_no_query TEXT NOT NULL, "
"request_referrer TEXT NOT NULL, "
"request_headers_guard INTEGER NOT NULL, "
"request_mode INTEGER NOT NULL, "
"request_credentials INTEGER NOT NULL, "
"request_body_id TEXT NULL, "
"response_type INTEGER NOT NULL, "
"response_url TEXT NOT NULL, "
"response_status INTEGER NOT NULL, "
"response_status_text TEXT NOT NULL, "
"response_headers_guard INTEGER NOT NULL, "
"response_body_id TEXT NULL, "
"response_security_info BLOB NULL, "
"cache_id INTEGER NOT NULL REFERENCES caches(id) ON DELETE CASCADE"
");"
));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
// TODO: see if we can remove these indices on TEXT columns (bug 1110458)
rv = aConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX entries_request_url_index "
"ON entries (request_url);"
));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = aConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX entries_request_url_no_query_index "
"ON entries (request_url_no_query);"
));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = aConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE request_headers ("
"name TEXT NOT NULL, "
"value TEXT NOT NULL, "
"entry_id INTEGER NOT NULL REFERENCES entries(id) ON DELETE CASCADE"
");"
));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = aConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE response_headers ("
"name TEXT NOT NULL, "
"value TEXT NOT NULL, "
"entry_id INTEGER NOT NULL REFERENCES entries(id) ON DELETE CASCADE"
");"
));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
// We need an index on response_headers, but not on request_headers,
// because we quickly need to determine if a VARY header is present.
rv = aConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE INDEX response_headers_name_index "
"ON response_headers (name);"
));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = aConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TABLE storage ("
"namespace INTEGER NOT NULL, "
"key TEXT NOT NULL, "
"cache_id INTEGER NOT NULL REFERENCES caches(id), "
"PRIMARY KEY(namespace, key) "
");"
));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = aConn->SetSchemaVersion(kLatestSchemaVersion);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = aConn->GetSchemaVersion(&schemaVersion);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
}
if (schemaVersion != kLatestSchemaVersion) {
return NS_ERROR_FAILURE;
}
return rv;
}
// static
nsresult
DBSchema::CreateCache(mozIStorageConnection* aConn, CacheId* aCacheIdOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
MOZ_ASSERT(aCacheIdOut);
nsresult rv = aConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT INTO caches DEFAULT VALUES;"
));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
nsCOMPtr<mozIStorageStatement> state;
rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT last_insert_rowid()"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
bool hasMoreData = false;
rv = state->ExecuteStep(&hasMoreData);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
if (NS_WARN_IF(!hasMoreData)) { return NS_ERROR_UNEXPECTED; }
rv = state->GetInt32(0, aCacheIdOut);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
return rv;
}
// static
nsresult
DBSchema::DeleteCache(mozIStorageConnection* aConn, CacheId aCacheId,
nsTArray<nsID>& aDeletedBodyIdListOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
// Delete the bodies explicitly as we need to read out the body IDs
// anyway. These body IDs must be deleted one-by-one as content may
// still be referencing them invidivually.
nsAutoTArray<EntryId, 256> matches;
nsresult rv = QueryAll(aConn, aCacheId, matches);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = DeleteEntries(aConn, matches, aDeletedBodyIdListOut);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
// Delete the remainder of the cache using cascade semantics.
nsCOMPtr<mozIStorageStatement> state;
rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM caches WHERE id=?1;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aCacheId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
return rv;
}
// static
nsresult
DBSchema::IsCacheOrphaned(mozIStorageConnection* aConn,
CacheId aCacheId, bool* aOrphanedOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
MOZ_ASSERT(aOrphanedOut);
// err on the side of not deleting user data
*aOrphanedOut = false;
nsCOMPtr<mozIStorageStatement> state;
nsresult rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT COUNT(*) FROM storage WHERE cache_id=?1;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aCacheId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
bool hasMoreData = false;
rv = state->ExecuteStep(&hasMoreData);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
MOZ_ASSERT(hasMoreData);
int32_t refCount;
rv = state->GetInt32(0, &refCount);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
*aOrphanedOut = refCount == 0;
return rv;
}
// static
nsresult
DBSchema::CacheMatch(mozIStorageConnection* aConn, CacheId aCacheId,
const PCacheRequest& aRequest,
const PCacheQueryParams& aParams,
bool* aFoundResponseOut,
SavedResponse* aSavedResponseOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
MOZ_ASSERT(aFoundResponseOut);
MOZ_ASSERT(aSavedResponseOut);
*aFoundResponseOut = false;
nsAutoTArray<EntryId, 1> matches;
nsresult rv = QueryCache(aConn, aCacheId, aRequest, aParams, matches, 1);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
if (matches.IsEmpty()) {
return rv;
}
rv = ReadResponse(aConn, matches[0], aSavedResponseOut);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedResponseOut->mCacheId = aCacheId;
*aFoundResponseOut = true;
return rv;
}
// static
nsresult
DBSchema::CacheMatchAll(mozIStorageConnection* aConn, CacheId aCacheId,
const PCacheRequestOrVoid& aRequestOrVoid,
const PCacheQueryParams& aParams,
nsTArray<SavedResponse>& aSavedResponsesOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
nsresult rv;
nsAutoTArray<EntryId, 256> matches;
if (aRequestOrVoid.type() == PCacheRequestOrVoid::Tvoid_t) {
rv = QueryAll(aConn, aCacheId, matches);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
} else {
rv = QueryCache(aConn, aCacheId, aRequestOrVoid, aParams, matches);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
}
// TODO: replace this with a bulk load using SQL IN clause (bug 1110458)
for (uint32_t i = 0; i < matches.Length(); ++i) {
SavedResponse savedResponse;
rv = ReadResponse(aConn, matches[i], &savedResponse);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
savedResponse.mCacheId = aCacheId;
aSavedResponsesOut.AppendElement(savedResponse);
}
return rv;
}
// static
nsresult
DBSchema::CachePut(mozIStorageConnection* aConn, CacheId aCacheId,
const PCacheRequest& aRequest,
const nsID* aRequestBodyId,
const PCacheResponse& aResponse,
const nsID* aResponseBodyId,
nsTArray<nsID>& aDeletedBodyIdListOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
PCacheQueryParams params(false, false, false, false,
NS_LITERAL_STRING(""));
nsAutoTArray<EntryId, 256> matches;
nsresult rv = QueryCache(aConn, aCacheId, aRequest, params, matches);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = DeleteEntries(aConn, matches, aDeletedBodyIdListOut);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = InsertEntry(aConn, aCacheId, aRequest, aRequestBodyId, aResponse,
aResponseBodyId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
return rv;
}
// static
nsresult
DBSchema::CacheDelete(mozIStorageConnection* aConn, CacheId aCacheId,
const PCacheRequest& aRequest,
const PCacheQueryParams& aParams,
nsTArray<nsID>& aDeletedBodyIdListOut, bool* aSuccessOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
MOZ_ASSERT(aSuccessOut);
*aSuccessOut = false;
nsAutoTArray<EntryId, 256> matches;
nsresult rv = QueryCache(aConn, aCacheId, aRequest, aParams, matches);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
if (matches.IsEmpty()) {
return rv;
}
rv = DeleteEntries(aConn, matches, aDeletedBodyIdListOut);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
*aSuccessOut = true;
return rv;
}
// static
nsresult
DBSchema::CacheKeys(mozIStorageConnection* aConn, CacheId aCacheId,
const PCacheRequestOrVoid& aRequestOrVoid,
const PCacheQueryParams& aParams,
nsTArray<SavedRequest>& aSavedRequestsOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
nsresult rv;
nsAutoTArray<EntryId, 256> matches;
if (aRequestOrVoid.type() == PCacheRequestOrVoid::Tvoid_t) {
rv = QueryAll(aConn, aCacheId, matches);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
} else {
rv = QueryCache(aConn, aCacheId, aRequestOrVoid, aParams, matches);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
}
// TODO: replace this with a bulk load using SQL IN clause (bug 1110458)
for (uint32_t i = 0; i < matches.Length(); ++i) {
SavedRequest savedRequest;
rv = ReadRequest(aConn, matches[i], &savedRequest);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
savedRequest.mCacheId = aCacheId;
aSavedRequestsOut.AppendElement(savedRequest);
}
return rv;
}
// static
nsresult
DBSchema::StorageMatch(mozIStorageConnection* aConn,
Namespace aNamespace,
const PCacheRequest& aRequest,
const PCacheQueryParams& aParams,
bool* aFoundResponseOut,
SavedResponse* aSavedResponseOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
MOZ_ASSERT(aFoundResponseOut);
MOZ_ASSERT(aSavedResponseOut);
*aFoundResponseOut = false;
nsresult rv;
// If we are given a cache to check, then simply find its cache ID
// and perform the match.
if (!aParams.cacheName().EqualsLiteral("")) {
bool foundCache = false;
// no invalid CacheId, init to least likely real value
CacheId cacheId = INT32_MAX;
rv = StorageGetCacheId(aConn, aNamespace, aParams.cacheName(), &foundCache,
&cacheId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
if (!foundCache) { return NS_ERROR_DOM_NOT_FOUND_ERR; }
rv = CacheMatch(aConn, cacheId, aRequest, aParams, aFoundResponseOut,
aSavedResponseOut);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
return rv;
}
// Otherwise we need to get a list of all the cache IDs in this namespace.
nsCOMPtr<mozIStorageStatement> state;
rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT cache_id FROM storage WHERE namespace=?1 ORDER BY rowid;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aNamespace);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
nsAutoTArray<CacheId, 32> cacheIdList;
bool hasMoreData = false;
while (NS_SUCCEEDED(state->ExecuteStep(&hasMoreData)) && hasMoreData) {
CacheId cacheId = INT32_MAX;
rv = state->GetInt32(0, &cacheId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
cacheIdList.AppendElement(cacheId);
}
// Now try to find a match in each cache in order
for (uint32_t i = 0; i < cacheIdList.Length(); ++i) {
rv = CacheMatch(aConn, cacheIdList[i], aRequest, aParams, aFoundResponseOut,
aSavedResponseOut);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
if (*aFoundResponseOut) {
aSavedResponseOut->mCacheId = cacheIdList[i];
return rv;
}
}
return NS_OK;
}
// static
nsresult
DBSchema::StorageGetCacheId(mozIStorageConnection* aConn, Namespace aNamespace,
const nsAString& aKey, bool* aFoundCacheOut,
CacheId* aCacheIdOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
MOZ_ASSERT(aFoundCacheOut);
MOZ_ASSERT(aCacheIdOut);
*aFoundCacheOut = false;
nsCOMPtr<mozIStorageStatement> state;
nsresult rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT cache_id FROM storage WHERE namespace=?1 AND key=?2 ORDER BY rowid;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aNamespace);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindStringParameter(1, aKey);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
bool hasMoreData = false;
rv = state->ExecuteStep(&hasMoreData);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
if (!hasMoreData) {
return rv;
}
rv = state->GetInt32(0, aCacheIdOut);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
*aFoundCacheOut = true;
return rv;
}
// static
nsresult
DBSchema::StoragePutCache(mozIStorageConnection* aConn, Namespace aNamespace,
const nsAString& aKey, CacheId aCacheId)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
nsCOMPtr<mozIStorageStatement> state;
nsresult rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"INSERT INTO storage (namespace, key, cache_id) VALUES(?1, ?2, ?3);"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aNamespace);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindStringParameter(1, aKey);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(2, aCacheId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
return rv;
}
// static
nsresult
DBSchema::StorageForgetCache(mozIStorageConnection* aConn, Namespace aNamespace,
const nsAString& aKey)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
nsCOMPtr<mozIStorageStatement> state;
nsresult rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM storage WHERE namespace=?1 AND key=?2;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aNamespace);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindStringParameter(1, aKey);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
return rv;
}
// static
nsresult
DBSchema::StorageGetKeys(mozIStorageConnection* aConn, Namespace aNamespace,
nsTArray<nsString>& aKeysOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
nsCOMPtr<mozIStorageStatement> state;
nsresult rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT key FROM storage WHERE namespace=?1 ORDER BY rowid;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aNamespace);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
bool hasMoreData = false;
while (NS_SUCCEEDED(state->ExecuteStep(&hasMoreData)) && hasMoreData) {
nsAutoString key;
rv = state->GetString(0, key);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aKeysOut.AppendElement(key);
}
return rv;
}
// static
nsresult
DBSchema::QueryAll(mozIStorageConnection* aConn, CacheId aCacheId,
nsTArray<EntryId>& aEntryIdListOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
nsCOMPtr<mozIStorageStatement> state;
nsresult rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT id FROM entries WHERE cache_id=?1 ORDER BY id;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aCacheId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
bool hasMoreData = false;
while (NS_SUCCEEDED(state->ExecuteStep(&hasMoreData)) && hasMoreData) {
EntryId entryId = INT32_MAX;
rv = state->GetInt32(0, &entryId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aEntryIdListOut.AppendElement(entryId);
}
return rv;
}
// static
nsresult
DBSchema::QueryCache(mozIStorageConnection* aConn, CacheId aCacheId,
const PCacheRequest& aRequest,
const PCacheQueryParams& aParams,
nsTArray<EntryId>& aEntryIdListOut,
uint32_t aMaxResults)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
MOZ_ASSERT(aMaxResults > 0);
if (!aParams.ignoreMethod() && !aRequest.method().LowerCaseEqualsLiteral("get")
&& !aRequest.method().LowerCaseEqualsLiteral("head"))
{
return NS_OK;
}
nsAutoCString query(
"SELECT id, COUNT(response_headers.name) AS vary_count "
"FROM entries "
"LEFT OUTER JOIN response_headers ON entries.id=response_headers.entry_id "
"AND response_headers.name='vary' "
"WHERE entries.cache_id=?1 "
"AND entries."
);
nsAutoString urlToMatch;
if (aParams.ignoreSearch()) {
urlToMatch = aRequest.urlWithoutQuery();
query.AppendLiteral("request_url_no_query");
} else {
urlToMatch = aRequest.url();
query.AppendLiteral("request_url");
}
query.AppendLiteral("=?2 GROUP BY entries.id ORDER BY entries.id;");
nsCOMPtr<mozIStorageStatement> state;
nsresult rv = aConn->CreateStatement(query, getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aCacheId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindStringParameter(1, urlToMatch);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
bool hasMoreData = false;
while (NS_SUCCEEDED(state->ExecuteStep(&hasMoreData)) && hasMoreData) {
// no invalid EntryId, init to least likely real value
EntryId entryId = INT32_MAX;
rv = state->GetInt32(0, &entryId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
int32_t varyCount;
rv = state->GetInt32(1, &varyCount);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
if (!aParams.ignoreVary() && varyCount > 0) {
bool matchedByVary = false;
rv = MatchByVaryHeader(aConn, aRequest, entryId, &matchedByVary);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
if (!matchedByVary) {
continue;
}
}
aEntryIdListOut.AppendElement(entryId);
if (aEntryIdListOut.Length() == aMaxResults) {
return NS_OK;
}
}
return rv;
}
// static
nsresult
DBSchema::MatchByVaryHeader(mozIStorageConnection* aConn,
const PCacheRequest& aRequest,
EntryId entryId, bool* aSuccessOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
*aSuccessOut = false;
nsCOMPtr<mozIStorageStatement> state;
nsresult rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT value FROM response_headers "
"WHERE name='vary' AND entry_id=?1;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, entryId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
nsAutoTArray<nsCString, 8> varyValues;
bool hasMoreData = false;
while (NS_SUCCEEDED(state->ExecuteStep(&hasMoreData)) && hasMoreData) {
nsAutoCString value;
rv = state->GetUTF8String(0, value);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
varyValues.AppendElement(value);
}
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
// Should not have called this function if this was not the case
MOZ_ASSERT(!varyValues.IsEmpty());
state->Reset();
rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT name, value FROM request_headers "
"WHERE entry_id=?1;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, entryId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
nsRefPtr<InternalHeaders> cachedHeaders = new InternalHeaders(HeadersGuardEnum::None);
ErrorResult errorResult;
while (NS_SUCCEEDED(state->ExecuteStep(&hasMoreData)) && hasMoreData) {
nsAutoCString name;
nsAutoCString value;
rv = state->GetUTF8String(0, name);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->GetUTF8String(1, value);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
cachedHeaders->Append(name, value, errorResult);
if (errorResult.Failed()) { return errorResult.ErrorCode(); };
}
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
nsRefPtr<InternalHeaders> queryHeaders = new InternalHeaders(aRequest.headers());
// Assume the vary headers match until we find a conflict
bool varyHeadersMatch = true;
for (uint32_t i = 0; i < varyValues.Length(); ++i) {
if (varyValues[i].EqualsLiteral("*")) {
continue;
}
nsAutoCString queryValue;
queryHeaders->Get(varyValues[i], queryValue, errorResult);
if (errorResult.Failed()) { return errorResult.ErrorCode(); };
nsAutoCString cachedValue;
cachedHeaders->Get(varyValues[i], cachedValue, errorResult);
if (errorResult.Failed()) { return errorResult.ErrorCode(); };
if (queryValue != cachedValue) {
varyHeadersMatch = false;
break;
}
}
*aSuccessOut = varyHeadersMatch;
return rv;
}
// static
nsresult
DBSchema::DeleteEntries(mozIStorageConnection* aConn,
const nsTArray<EntryId>& aEntryIdList,
nsTArray<nsID>& aDeletedBodyIdListOut,
uint32_t aPos, int32_t aLen)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
if (aEntryIdList.IsEmpty()) {
return NS_OK;
}
MOZ_ASSERT(aPos < aEntryIdList.Length());
if (aLen < 0) {
aLen = aEntryIdList.Length() - aPos;
}
// Sqlite limits the number of entries allowed for an IN clause,
// so split up larger operations.
if (aLen > kMaxEntriesPerStatement) {
uint32_t curPos = aPos;
int32_t remaining = aLen;
while (remaining > 0) {
int32_t max = kMaxEntriesPerStatement;
int32_t curLen = std::min(max, remaining);
nsresult rv = DeleteEntries(aConn, aEntryIdList, aDeletedBodyIdListOut,
curPos, curLen);
if (NS_FAILED(rv)) { return rv; }
curPos += curLen;
remaining -= curLen;
}
return NS_OK;
}
nsCOMPtr<mozIStorageStatement> state;
nsAutoCString query(
"SELECT request_body_id, response_body_id FROM entries WHERE id IN ("
);
AppendListParamsToQuery(query, aEntryIdList, aPos, aLen);
query.AppendLiteral(")");
nsresult rv = aConn->CreateStatement(query, getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = BindListParamsToQuery(state, aEntryIdList, aPos, aLen);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
bool hasMoreData = false;
while (NS_SUCCEEDED(state->ExecuteStep(&hasMoreData)) && hasMoreData) {
// extract 0 to 2 nsID structs per row
for (uint32_t i = 0; i < 2; ++i) {
bool isNull = false;
rv = state->GetIsNull(i, &isNull);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
if (!isNull) {
nsID id;
rv = ExtractId(state, i, &id);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aDeletedBodyIdListOut.AppendElement(id);
}
}
}
// Dependent records removed via ON DELETE CASCADE
query = NS_LITERAL_CSTRING(
"DELETE FROM entries WHERE id IN ("
);
AppendListParamsToQuery(query, aEntryIdList, aPos, aLen);
query.AppendLiteral(")");
rv = aConn->CreateStatement(query, getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = BindListParamsToQuery(state, aEntryIdList, aPos, aLen);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
return rv;
}
// static
nsresult
DBSchema::InsertEntry(mozIStorageConnection* aConn, CacheId aCacheId,
const PCacheRequest& aRequest,
const nsID* aRequestBodyId,
const PCacheResponse& aResponse,
const nsID* aResponseBodyId)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
nsCOMPtr<mozIStorageStatement> state;
nsresult rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"INSERT INTO entries ("
"request_method, "
"request_url, "
"request_url_no_query, "
"request_referrer, "
"request_headers_guard, "
"request_mode, "
"request_credentials, "
"request_body_id, "
"response_type, "
"response_url, "
"response_status, "
"response_status_text, "
"response_headers_guard, "
"response_body_id, "
"response_security_info, "
"cache_id "
") VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11, ?12, ?13, ?14, ?15, ?16)"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindUTF8StringParameter(0, aRequest.method());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindStringParameter(1, aRequest.url());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindStringParameter(2, aRequest.urlWithoutQuery());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindStringParameter(3, aRequest.referrer());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(4,
static_cast<int32_t>(aRequest.headersGuard()));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(5, static_cast<int32_t>(aRequest.mode()));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(6,
static_cast<int32_t>(aRequest.credentials()));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = BindId(state, 7, aRequestBodyId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(8, static_cast<int32_t>(aResponse.type()));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindStringParameter(9, aResponse.url());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(10, aResponse.status());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindUTF8StringParameter(11, aResponse.statusText());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(12,
static_cast<int32_t>(aResponse.headersGuard()));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = BindId(state, 13, aResponseBodyId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindBlobParameter(14, reinterpret_cast<const uint8_t*>
(aResponse.securityInfo().get()),
aResponse.securityInfo().Length());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(15, aCacheId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT last_insert_rowid()"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
bool hasMoreData = false;
rv = state->ExecuteStep(&hasMoreData);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
int32_t entryId;
rv = state->GetInt32(0, &entryId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"INSERT INTO request_headers ("
"name, "
"value, "
"entry_id "
") VALUES (?1, ?2, ?3)"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
const nsTArray<PHeadersEntry>& requestHeaders = aRequest.headers();
for (uint32_t i = 0; i < requestHeaders.Length(); ++i) {
rv = state->BindUTF8StringParameter(0, requestHeaders[i].name());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindUTF8StringParameter(1, requestHeaders[i].value());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(2, entryId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
}
rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"INSERT INTO response_headers ("
"name, "
"value, "
"entry_id "
") VALUES (?1, ?2, ?3)"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
const nsTArray<PHeadersEntry>& responseHeaders = aResponse.headers();
for (uint32_t i = 0; i < responseHeaders.Length(); ++i) {
rv = state->BindUTF8StringParameter(0, responseHeaders[i].name());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindUTF8StringParameter(1, responseHeaders[i].value());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(2, entryId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->Execute();
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
}
return rv;
}
// static
nsresult
DBSchema::ReadResponse(mozIStorageConnection* aConn, EntryId aEntryId,
SavedResponse* aSavedResponseOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
MOZ_ASSERT(aSavedResponseOut);
nsCOMPtr<mozIStorageStatement> state;
nsresult rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT "
"response_type, "
"response_url, "
"response_status, "
"response_status_text, "
"response_headers_guard, "
"response_body_id, "
"response_security_info "
"FROM entries "
"WHERE id=?1;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aEntryId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
bool hasMoreData = false;
rv = state->ExecuteStep(&hasMoreData);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
int32_t type;
rv = state->GetInt32(0, &type);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedResponseOut->mValue.type() = static_cast<ResponseType>(type);
rv = state->GetString(1, aSavedResponseOut->mValue.url());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
int32_t status;
rv = state->GetInt32(2, &status);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedResponseOut->mValue.status() = status;
rv = state->GetUTF8String(3, aSavedResponseOut->mValue.statusText());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
int32_t guard;
rv = state->GetInt32(4, &guard);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedResponseOut->mValue.headersGuard() =
static_cast<HeadersGuardEnum>(guard);
bool nullBody = false;
rv = state->GetIsNull(5, &nullBody);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedResponseOut->mHasBodyId = !nullBody;
if (aSavedResponseOut->mHasBodyId) {
rv = ExtractId(state, 5, &aSavedResponseOut->mBodyId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
}
uint8_t* data = nullptr;
uint32_t dataLength = 0;
rv = state->GetBlob(6, &dataLength, &data);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedResponseOut->mValue.securityInfo().Adopt(
reinterpret_cast<char*>(data), dataLength);
rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT "
"name, "
"value "
"FROM response_headers "
"WHERE entry_id=?1;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aEntryId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
while (NS_SUCCEEDED(state->ExecuteStep(&hasMoreData)) && hasMoreData) {
PHeadersEntry header;
rv = state->GetUTF8String(0, header.name());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->GetUTF8String(1, header.value());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedResponseOut->mValue.headers().AppendElement(header);
}
return rv;
}
// static
nsresult
DBSchema::ReadRequest(mozIStorageConnection* aConn, EntryId aEntryId,
SavedRequest* aSavedRequestOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aConn);
MOZ_ASSERT(aSavedRequestOut);
nsCOMPtr<mozIStorageStatement> state;
nsresult rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT "
"request_method, "
"request_url, "
"request_url_no_query, "
"request_referrer, "
"request_headers_guard, "
"request_mode, "
"request_credentials, "
"request_body_id "
"FROM entries "
"WHERE id=?1;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aEntryId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
bool hasMoreData = false;
rv = state->ExecuteStep(&hasMoreData);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->GetUTF8String(0, aSavedRequestOut->mValue.method());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->GetString(1, aSavedRequestOut->mValue.url());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->GetString(2, aSavedRequestOut->mValue.urlWithoutQuery());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->GetString(3, aSavedRequestOut->mValue.referrer());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
int32_t guard;
rv = state->GetInt32(4, &guard);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedRequestOut->mValue.headersGuard() =
static_cast<HeadersGuardEnum>(guard);
int32_t mode;
rv = state->GetInt32(5, &mode);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedRequestOut->mValue.mode() = static_cast<RequestMode>(mode);
int32_t credentials;
rv = state->GetInt32(6, &credentials);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedRequestOut->mValue.credentials() =
static_cast<RequestCredentials>(credentials);
bool nullBody = false;
rv = state->GetIsNull(7, &nullBody);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedRequestOut->mHasBodyId = !nullBody;
if (aSavedRequestOut->mHasBodyId) {
rv = ExtractId(state, 7, &aSavedRequestOut->mBodyId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
}
rv = aConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT "
"name, "
"value "
"FROM request_headers "
"WHERE entry_id=?1;"
), getter_AddRefs(state));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->BindInt32Parameter(0, aEntryId);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
while (NS_SUCCEEDED(state->ExecuteStep(&hasMoreData)) && hasMoreData) {
PHeadersEntry header;
rv = state->GetUTF8String(0, header.name());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
rv = state->GetUTF8String(1, header.value());
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
aSavedRequestOut->mValue.headers().AppendElement(header);
}
return rv;
}
// static
void
DBSchema::AppendListParamsToQuery(nsACString& aQuery,
const nsTArray<EntryId>& aEntryIdList,
uint32_t aPos, int32_t aLen)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT((aPos + aLen) <= aEntryIdList.Length());
for (int32_t i = aPos; i < aLen; ++i) {
if (i == 0) {
aQuery.AppendLiteral("?");
} else {
aQuery.AppendLiteral(",?");
}
}
}
// static
nsresult
DBSchema::BindListParamsToQuery(mozIStorageStatement* aState,
const nsTArray<EntryId>& aEntryIdList,
uint32_t aPos, int32_t aLen)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT((aPos + aLen) <= aEntryIdList.Length());
for (int32_t i = aPos; i < aLen; ++i) {
nsresult rv = aState->BindInt32Parameter(i, aEntryIdList[i]);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
// static
nsresult
DBSchema::BindId(mozIStorageStatement* aState, uint32_t aPos, const nsID* aId)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aState);
nsresult rv;
if (!aId) {
rv = aState->BindNullParameter(aPos);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
return rv;
}
char idBuf[NSID_LENGTH];
aId->ToProvidedString(idBuf);
rv = aState->BindUTF8StringParameter(aPos, nsAutoCString(idBuf));
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
return rv;
}
// static
nsresult
DBSchema::ExtractId(mozIStorageStatement* aState, uint32_t aPos, nsID* aIdOut)
{
MOZ_ASSERT(!NS_IsMainThread());
MOZ_ASSERT(aState);
MOZ_ASSERT(aIdOut);
nsAutoCString idString;
nsresult rv = aState->GetUTF8String(aPos, idString);
if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
bool success = aIdOut->Parse(idString.get());
if (NS_WARN_IF(!success)) { return NS_ERROR_UNEXPECTED; }
return rv;
}
} // namespace cache
} // namespace dom
} // namespace mozilla
Reference in New Issue View Git Blame Copy Permalink