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-rw-r--r--storage/mozStorageBindingParams.cpp431
1 files changed, 431 insertions, 0 deletions
diff --git a/storage/mozStorageBindingParams.cpp b/storage/mozStorageBindingParams.cpp
new file mode 100644
index 0000000000..1cd50c7a6f
--- /dev/null
+++ b/storage/mozStorageBindingParams.cpp
@@ -0,0 +1,431 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
+ * 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 <limits.h>
+
+#include "mozilla/UniquePtrExtensions.h"
+#include "nsString.h"
+
+#include "mozStorageError.h"
+#include "mozStoragePrivateHelpers.h"
+#include "mozStorageBindingParams.h"
+#include "Variant.h"
+
+namespace mozilla::storage {
+
+////////////////////////////////////////////////////////////////////////////////
+//// Local Helper Objects
+
+namespace {
+
+struct BindingColumnData {
+ BindingColumnData(sqlite3_stmt* aStmt, int aColumn)
+ : stmt(aStmt), column(aColumn) {}
+ sqlite3_stmt* stmt;
+ int column;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+//// Variant Specialization Functions (variantToSQLiteT)
+
+int sqlite3_T_int(BindingColumnData aData, int aValue) {
+ return ::sqlite3_bind_int(aData.stmt, aData.column + 1, aValue);
+}
+
+int sqlite3_T_int64(BindingColumnData aData, sqlite3_int64 aValue) {
+ return ::sqlite3_bind_int64(aData.stmt, aData.column + 1, aValue);
+}
+
+int sqlite3_T_double(BindingColumnData aData, double aValue) {
+ return ::sqlite3_bind_double(aData.stmt, aData.column + 1, aValue);
+}
+
+int sqlite3_T_text(BindingColumnData aData, const nsCString& aValue) {
+ return ::sqlite3_bind_text(aData.stmt, aData.column + 1, aValue.get(),
+ aValue.Length(), SQLITE_TRANSIENT);
+}
+
+int sqlite3_T_text16(BindingColumnData aData, const nsString& aValue) {
+ return ::sqlite3_bind_text16(
+ aData.stmt, aData.column + 1, aValue.get(),
+ aValue.Length() * sizeof(char16_t), // Length in bytes!
+ SQLITE_TRANSIENT);
+}
+
+int sqlite3_T_null(BindingColumnData aData) {
+ return ::sqlite3_bind_null(aData.stmt, aData.column + 1);
+}
+
+int sqlite3_T_blob(BindingColumnData aData, const void* aBlob, int aSize) {
+ return ::sqlite3_bind_blob(aData.stmt, aData.column + 1, aBlob, aSize, free);
+}
+
+#include "variantToSQLiteT_impl.h"
+
+} // namespace
+
+////////////////////////////////////////////////////////////////////////////////
+//// BindingParams
+
+BindingParams::BindingParams(mozIStorageBindingParamsArray* aOwningArray,
+ Statement* aOwningStatement)
+ : mLocked(false),
+ mOwningArray(aOwningArray),
+ mOwningStatement(aOwningStatement),
+ mParamCount(0) {
+ (void)mOwningStatement->GetParameterCount(&mParamCount);
+ mParameters.SetCapacity(mParamCount);
+}
+
+BindingParams::BindingParams(mozIStorageBindingParamsArray* aOwningArray)
+ : mLocked(false),
+ mOwningArray(aOwningArray),
+ mOwningStatement(nullptr),
+ mParamCount(0) {}
+
+AsyncBindingParams::AsyncBindingParams(
+ mozIStorageBindingParamsArray* aOwningArray)
+ : BindingParams(aOwningArray) {}
+
+void BindingParams::lock() {
+ NS_ASSERTION(mLocked == false, "Parameters have already been locked!");
+ mLocked = true;
+
+ // We no longer need to hold a reference to our statement or our owning array.
+ // The array owns us at this point, and it will own a reference to the
+ // statement.
+ mOwningStatement = nullptr;
+ mOwningArray = nullptr;
+}
+
+void BindingParams::unlock(Statement* aOwningStatement) {
+ NS_ASSERTION(mLocked == true, "Parameters were not yet locked!");
+ mLocked = false;
+ mOwningStatement = aOwningStatement;
+}
+
+const mozIStorageBindingParamsArray* BindingParams::getOwner() const {
+ return mOwningArray;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//// nsISupports
+
+NS_IMPL_ISUPPORTS(BindingParams, mozIStorageBindingParams,
+ IStorageBindingParamsInternal)
+
+////////////////////////////////////////////////////////////////////////////////
+//// IStorageBindingParamsInternal
+
+already_AddRefed<mozIStorageError> BindingParams::bind(
+ sqlite3_stmt* aStatement) {
+ // Iterate through all of our stored data, and bind it.
+ for (size_t i = 0; i < mParameters.Length(); i++) {
+ int rc = variantToSQLiteT(BindingColumnData(aStatement, i), mParameters[i]);
+ if (rc != SQLITE_OK) {
+ // We had an error while trying to bind. Now we need to create an error
+ // object with the right message. Note that we special case
+ // SQLITE_MISMATCH, but otherwise get the message from SQLite.
+ const char* msg = "Could not covert nsIVariant to SQLite type.";
+ if (rc != SQLITE_MISMATCH)
+ msg = ::sqlite3_errmsg(::sqlite3_db_handle(aStatement));
+
+ nsCOMPtr<mozIStorageError> err(new Error(rc, msg));
+ return err.forget();
+ }
+ }
+
+ return nullptr;
+}
+
+already_AddRefed<mozIStorageError> AsyncBindingParams::bind(
+ sqlite3_stmt* aStatement) {
+ // We should bind by index using the super-class if there is nothing in our
+ // hashtable.
+ if (!mNamedParameters.Count()) return BindingParams::bind(aStatement);
+
+ nsCOMPtr<mozIStorageError> err;
+
+ for (const auto& entry : mNamedParameters) {
+ const nsACString& key = entry.GetKey();
+
+ // We do not accept any forms of names other than ":name", but we need to
+ // add the colon for SQLite.
+ nsAutoCString name(":");
+ name.Append(key);
+ int oneIdx = ::sqlite3_bind_parameter_index(aStatement, name.get());
+
+ if (oneIdx == 0) {
+ nsAutoCString errMsg(key);
+ errMsg.AppendLiteral(" is not a valid named parameter.");
+ err = new Error(SQLITE_RANGE, errMsg.get());
+ break;
+ }
+
+ // XPCVariant's AddRef and Release are not thread-safe and so we must not
+ // do anything that would invoke them here on the async thread. As such we
+ // can't cram aValue into mParameters using ReplaceObjectAt so that
+ // we can freeload off of the BindingParams::Bind implementation.
+ int rc = variantToSQLiteT(BindingColumnData(aStatement, oneIdx - 1),
+ entry.GetWeak());
+ if (rc != SQLITE_OK) {
+ // We had an error while trying to bind. Now we need to create an error
+ // object with the right message. Note that we special case
+ // SQLITE_MISMATCH, but otherwise get the message from SQLite.
+ const char* msg = "Could not covert nsIVariant to SQLite type.";
+ if (rc != SQLITE_MISMATCH) {
+ msg = ::sqlite3_errmsg(::sqlite3_db_handle(aStatement));
+ }
+ err = new Error(rc, msg);
+ break;
+ }
+ }
+
+ return err.forget();
+}
+
+///////////////////////////////////////////////////////////////////////////////
+//// mozIStorageBindingParams
+
+NS_IMETHODIMP
+BindingParams::BindByName(const nsACString& aName, nsIVariant* aValue) {
+ NS_ENSURE_FALSE(mLocked, NS_ERROR_UNEXPECTED);
+
+ // Get the column index that we need to store this at.
+ uint32_t index;
+ nsresult rv = mOwningStatement->GetParameterIndex(aName, &index);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ return BindByIndex(index, aValue);
+}
+
+NS_IMETHODIMP
+AsyncBindingParams::BindByName(const nsACString& aName, nsIVariant* aValue) {
+ NS_ENSURE_FALSE(mLocked, NS_ERROR_UNEXPECTED);
+
+ RefPtr<Variant_base> variant = convertVariantToStorageVariant(aValue);
+ if (!variant) return NS_ERROR_UNEXPECTED;
+
+ mNamedParameters.InsertOrUpdate(aName, nsCOMPtr<nsIVariant>{variant});
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+BindingParams::BindUTF8StringByName(const nsACString& aName,
+ const nsACString& aValue) {
+ nsCOMPtr<nsIVariant> value(new UTF8TextVariant(aValue));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByName(aName, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindStringByName(const nsACString& aName,
+ const nsAString& aValue) {
+ nsCOMPtr<nsIVariant> value(new TextVariant(aValue));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByName(aName, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindDoubleByName(const nsACString& aName, double aValue) {
+ nsCOMPtr<nsIVariant> value(new FloatVariant(aValue));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByName(aName, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindInt32ByName(const nsACString& aName, int32_t aValue) {
+ nsCOMPtr<nsIVariant> value(new IntegerVariant(aValue));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByName(aName, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindInt64ByName(const nsACString& aName, int64_t aValue) {
+ nsCOMPtr<nsIVariant> value(new IntegerVariant(aValue));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByName(aName, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindNullByName(const nsACString& aName) {
+ nsCOMPtr<nsIVariant> value(new NullVariant());
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByName(aName, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindBlobByName(const nsACString& aName, const uint8_t* aValue,
+ uint32_t aValueSize) {
+ NS_ENSURE_ARG_MAX(aValueSize, INT_MAX);
+ std::pair<const void*, int> data(static_cast<const void*>(aValue),
+ int(aValueSize));
+ nsCOMPtr<nsIVariant> value(new BlobVariant(data));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByName(aName, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindBlobArrayByName(const nsACString& aName,
+ const nsTArray<uint8_t>& aValue) {
+ return BindBlobByName(aName, aValue.Elements(), aValue.Length());
+}
+
+NS_IMETHODIMP
+BindingParams::BindStringAsBlobByName(const nsACString& aName,
+ const nsAString& aValue) {
+ return DoBindStringAsBlobByName(this, aName, aValue);
+}
+
+NS_IMETHODIMP
+BindingParams::BindUTF8StringAsBlobByName(const nsACString& aName,
+ const nsACString& aValue) {
+ return DoBindStringAsBlobByName(this, aName, aValue);
+}
+
+NS_IMETHODIMP
+BindingParams::BindAdoptedBlobByName(const nsACString& aName, uint8_t* aValue,
+ uint32_t aValueSize) {
+ UniqueFreePtr<uint8_t> uniqueValue(aValue);
+ NS_ENSURE_ARG_MAX(aValueSize, INT_MAX);
+ std::pair<uint8_t*, int> data(uniqueValue.release(), int(aValueSize));
+ nsCOMPtr<nsIVariant> value(new AdoptedBlobVariant(data));
+
+ return BindByName(aName, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindByIndex(uint32_t aIndex, nsIVariant* aValue) {
+ NS_ENSURE_FALSE(mLocked, NS_ERROR_UNEXPECTED);
+ ENSURE_INDEX_VALUE(aIndex, mParamCount);
+
+ // Store the variant for later use.
+ RefPtr<Variant_base> variant = convertVariantToStorageVariant(aValue);
+ if (!variant) return NS_ERROR_UNEXPECTED;
+ if (mParameters.Length() <= aIndex) {
+ (void)mParameters.SetLength(aIndex);
+ (void)mParameters.AppendElement(variant);
+ } else {
+ mParameters.ReplaceElementAt(aIndex, variant);
+ }
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+AsyncBindingParams::BindByIndex(uint32_t aIndex, nsIVariant* aValue) {
+ NS_ENSURE_FALSE(mLocked, NS_ERROR_UNEXPECTED);
+ // In the asynchronous case we do not know how many parameters there are to
+ // bind to, so we cannot check the validity of aIndex.
+
+ RefPtr<Variant_base> variant = convertVariantToStorageVariant(aValue);
+ if (!variant) return NS_ERROR_UNEXPECTED;
+ if (mParameters.Length() <= aIndex) {
+ mParameters.SetLength(aIndex);
+ mParameters.AppendElement(variant);
+ } else {
+ mParameters.ReplaceElementAt(aIndex, variant);
+ }
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+BindingParams::BindUTF8StringByIndex(uint32_t aIndex,
+ const nsACString& aValue) {
+ nsCOMPtr<nsIVariant> value(new UTF8TextVariant(aValue));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByIndex(aIndex, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindStringByIndex(uint32_t aIndex, const nsAString& aValue) {
+ nsCOMPtr<nsIVariant> value(new TextVariant(aValue));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByIndex(aIndex, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindDoubleByIndex(uint32_t aIndex, double aValue) {
+ nsCOMPtr<nsIVariant> value(new FloatVariant(aValue));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByIndex(aIndex, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindInt32ByIndex(uint32_t aIndex, int32_t aValue) {
+ nsCOMPtr<nsIVariant> value(new IntegerVariant(aValue));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByIndex(aIndex, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindInt64ByIndex(uint32_t aIndex, int64_t aValue) {
+ nsCOMPtr<nsIVariant> value(new IntegerVariant(aValue));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByIndex(aIndex, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindNullByIndex(uint32_t aIndex) {
+ nsCOMPtr<nsIVariant> value(new NullVariant());
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByIndex(aIndex, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindBlobByIndex(uint32_t aIndex, const uint8_t* aValue,
+ uint32_t aValueSize) {
+ NS_ENSURE_ARG_MAX(aValueSize, INT_MAX);
+ std::pair<const void*, int> data(static_cast<const void*>(aValue),
+ int(aValueSize));
+ nsCOMPtr<nsIVariant> value(new BlobVariant(data));
+ NS_ENSURE_TRUE(value, NS_ERROR_OUT_OF_MEMORY);
+
+ return BindByIndex(aIndex, value);
+}
+
+NS_IMETHODIMP
+BindingParams::BindBlobArrayByIndex(uint32_t aIndex,
+ const nsTArray<uint8_t>& aValue) {
+ return BindBlobByIndex(aIndex, aValue.Elements(), aValue.Length());
+}
+
+NS_IMETHODIMP
+BindingParams::BindStringAsBlobByIndex(uint32_t aIndex,
+ const nsAString& aValue) {
+ return DoBindStringAsBlobByIndex(this, aIndex, aValue);
+}
+
+NS_IMETHODIMP
+BindingParams::BindUTF8StringAsBlobByIndex(uint32_t aIndex,
+ const nsACString& aValue) {
+ return DoBindStringAsBlobByIndex(this, aIndex, aValue);
+}
+
+NS_IMETHODIMP
+BindingParams::BindAdoptedBlobByIndex(uint32_t aIndex, uint8_t* aValue,
+ uint32_t aValueSize) {
+ UniqueFreePtr<uint8_t> uniqueValue(aValue);
+ NS_ENSURE_ARG_MAX(aValueSize, INT_MAX);
+ std::pair<uint8_t*, int> data(uniqueValue.release(), int(aValueSize));
+ nsCOMPtr<nsIVariant> value(new AdoptedBlobVariant(data));
+
+ return BindByIndex(aIndex, value);
+}
+
+} // namespace mozilla::storage