2018-11-12 11:19:01 -06:00
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jacob Quant <jacobq@gmail.com>
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2019-11-22 13:35:54 -06:00
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Date: Thu, 31 Oct 2019 14:00:00 -0500
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2018-11-12 11:19:01 -06:00
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Subject: dom_storage_limits.patch
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2019-11-22 13:35:54 -06:00
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This patch increases the DOM storage (e.g. `localStorage`
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and `sessionStorage`) size quota from 10MiB to 100MiB.
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Previous versions of this patch attempted to circumvent
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the restriction altogether.
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However, this can lead to other problems, such as crashing
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the Dev Tools when attempting to read or write values that exceed
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`IPC::Channel::kMaximumMessageSize` (128MiB).
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2018-11-12 11:19:01 -06:00
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2019-11-22 13:35:54 -06:00
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Increasing the quota rather than bypassing it reduces the
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amount of chromium code that needs to be changed for Electron
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as well as keeps these storage areas limited to a bounded
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size meanwhile giving application developers more space to work with.
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2018-11-12 11:19:01 -06:00
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2019-12-10 16:22:35 -08:00
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diff --git a/components/services/storage/dom_storage/dom_storage_constants.cc b/components/services/storage/dom_storage/dom_storage_constants.cc
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2022-10-03 13:21:00 -07:00
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index aa5edd1d07d97bee4912b14996ff804351240e94..8334b7eb6a3293c068f5234508f8dca780ccb262 100644
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2019-12-10 16:22:35 -08:00
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--- a/components/services/storage/dom_storage/dom_storage_constants.cc
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+++ b/components/services/storage/dom_storage/dom_storage_constants.cc
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@@ -6,7 +6,9 @@
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namespace storage {
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2019-01-12 06:30:43 +05:30
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2019-11-22 13:35:54 -06:00
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-const size_t kPerStorageAreaQuota = 10 * 1024 * 1024;
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+// Electron's dom_storage_limits.patch increased this value from 10MiB to 100MiB
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+const size_t kPerStorageAreaQuota = 100 * 1024 * 1024;
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2019-12-10 16:22:35 -08:00
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+
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const size_t kPerStorageAreaOverQuotaAllowance = 100 * 1024;
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2019-01-12 06:30:43 +05:30
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2019-12-10 16:22:35 -08:00
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} // namespace storage
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2019-11-22 13:35:54 -06:00
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diff --git a/third_party/blink/public/mojom/dom_storage/storage_area.mojom b/third_party/blink/public/mojom/dom_storage/storage_area.mojom
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2025-06-26 00:12:49 +09:00
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index 332be0811d86c7a265f440ab7719460160a22617..e3382d843599ef6017e0ac557919b3a41809f17d 100644
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2019-11-22 13:35:54 -06:00
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--- a/third_party/blink/public/mojom/dom_storage/storage_area.mojom
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+++ b/third_party/blink/public/mojom/dom_storage/storage_area.mojom
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2020-03-03 13:35:05 -08:00
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@@ -50,7 +50,8 @@ struct KeyValue {
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2019-11-22 13:35:54 -06:00
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interface StorageArea {
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// The quota for each storage area.
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// This value is enforced in renderer processes and the browser process.
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- const uint32 kPerStorageAreaQuota = 10485760; // 10 MiB
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+ // Electron's dom_storage_limits.patch increased this value from 10MiB to 100MiB
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+ const uint32 kPerStorageAreaQuota = 104857600; // 100 MiB
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2019-01-11 11:48:27 -08:00
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2019-11-22 13:35:54 -06:00
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// In the browser process we allow some overage to
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// accommodate concurrent writes from different renderers
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