ef6879b617 fix(CW-1638): include transaction notes in history CSV export (#3623)
* fix(CW-1638): include transaction notes in history CSV export

The `note` column of the transaction-history CSV export was always written
as an empty string for transaction rows, so notes a user added to a
transaction never appeared in the exported file.

Index the `TransactionDescription` Hive box once per export and look each
transaction's note up by the same keys the app writes them under
(`<txHash>_<primaryAddress>`, falling back to the legacy bare `<txHash>`),
then write it through the existing `escapeField` so multi-line notes and
notes containing commas or quotes stay valid CSV.

`CsvExportService` now takes the box, so it is resolved through `getIt` at
both export entry points.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q5EdTdWZSvzbKKmd9MCEJh

* perf(CW-1638): resolve the note-key address once per CSV export

`_noteFor` read `balanceViewModel.wallet.walletAddresses.primaryAddress`
once per transaction row. On Monero and Wownero that getter is not a field
read: it calls `getAddress`, which issues an FFI `numSubaddresses` call plus
four `ffiAddress` calls before its address cache is consulted. Since
`buildCsvContent` runs on the main isolate, exporting a wallet with a long
history meant thousands of synchronous FFI round-trips with no yield point.

Every item in one export belongs to the same wallet, so the value is
invariant across rows. Resolve it once in `buildCsvContent` and thread it
through to `_noteFor`. An export holding no transaction rows now skips the
read entirely.

No change to the exported output.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q5EdTdWZSvzbKKmd9MCEJh

* fix(CW-1638): neutralise spreadsheet formulas in CSV export

The note column this PR adds is fed by TransactionDescription.transactionNote,
which is not always authored by the user: a scanned bitcoin: URI carries
tx_description / message straight through payment_request.dart into
Output.note, and an address-resolution result writes Output.note too. Both are
folded into the note persisted by SendViewModel.

escapeField only quoted for , " and \n, so a note beginning with = + - @ TAB or
CR reached the cell untouched and Excel / LibreOffice / Sheets evaluate it as a
formula (=IMPORTDATA to exfiltrate a neighbouring cell, =HYPERLINK for phishing
anchor text, =cmd|… for DDE). trade.memo and the provider-supplied trade/order
strings had the same exposure already.

Neutralise inside escapeField rather than at the two call sites so every column
is covered and a future free-text column cannot forget it. Values starting with
a trigger are prefixed with an apostrophe, the spreadsheet text marker, guarded
by a plain-number test so negative amounts are left alone — formatFixed really
can emit a leading '-'. Also quote on a bare \r, which previously passed through
unquoted and splits rows in many CSV parsers.

Tests cover the escaping rules, the neutralisation, a row built end to end, and
the note column itself, including the two lookup keys and the payment-request
injection path.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* perf(CW-1638): bound the CSV note lookup to the exported rows

Review feedback: the note index copied every entry in the shared
transactionDescriptionBox, including notes belonging to other wallets,
so its memory scaled with the box rather than with the export.

Collect the keys the exported rows can ask for first — for each
transaction row both `<txHash>_<primaryAddress>` and the bare
`<txHash>` — then walk the box once and keep only matching notes.
Lookups stay O(1) per row and first-wins/key-preference behaviour is
unchanged; a box walk is skipped entirely when the export has no
transaction rows.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q5EdTdWZSvzbKKmd9MCEJh

* refactor(CW-1638): simplify the CSV note lookup to a plain scan

Notes are written into the TransactionDescriptions box with `add`
(send_view_model.dart:1257,1263 and transaction_details_view_model.dart:299),
so entries carry auto-incrementing integer keys and `box.get(descriptionKey)`
cannot find them. Drop the prebuilt lookup map and the wanted-key set in
favour of a per-row scan that mirrors the app's own read path in
`TransactionDetailsViewModel.note`.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q5EdTdWZSvzbKKmd9MCEJh

* docs(CW-1638): drop the explanatory comments from the CSV note lookup [skip ci]

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Q5EdTdWZSvzbKKmd9MCEJh

---------

Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Omar <omarh.ismail1@gmail.com>
2026-09-14 14:43:12 +02:00
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logo

Cake Wallet

Cake Wallet is an open-source, non-custodial, and private multi-currency crypto wallet for Android, iOS, macOS, and Linux.

Cake Wallet includes support for several cryptocurrencies, including:

  • Monero (XMR)
  • Bitcoin (BTC)
  • Ethereum (ETH)
  • Litecoin (LTC)
  • Bitcoin Cash (BCH)
  • Polygon (POL)
  • Base (BASE)
  • Arbitrum (ARB)
  • Solana (SOL)
  • Tron (TRX)
  • Nano (XNO)
  • Zano (ZANO)
  • Decred (DCR)

Features

App-Wide Features

  • Completely noncustodial. Your keys, your coins.
  • Built-in exchange for dozens of pairs
  • Easily pay cryptocurrency invoices with fixed rate exchanges
  • Buy cryptocurrency (BTC/LTC/XMR/ETH) with credit/debit/bank
  • Sell cryptocurrency by bank transfer
  • Scan QR codes for easy cryptocurrency transfers
  • Create several wallets
  • Select your own custom nodes/servers
  • Address book
  • Backup to an external location or iCloud
  • Send to OpenAlias, Unstoppable Domains, Yats, and FIO Crypto Handles
  • Set desired network fee level
  • Store local transaction notes
  • Extremely simple user experience
  • Convenient exchange and sending templates for recurring payments
  • Create donation links and invoices in the receive screen
  • Robust privacy settings (eg: Tor-only connections)
  • Robust security settings (eg: Cake 2FA)

Monero Specific Features

  • The Monero view key is retained on the device for maximum privacy
  • Full support for Monero subaddresses and accounts
  • Specify restore height for faster syncing
  • Specify multiple recipients for batch sending
  • Optionally set Monero nodes as trusted for faster syncing
  • Specify a proxy for Monero nodes, compatible with Tor and i2p

Bitcoin Specific Features

  • Bitcoin coin control (specify specific outputs to spend)
  • Automatically generate new addresses
  • Specify multiple recipients for batch sending

Ethereum Specific Features

  • Store ETH and all ERC-20 tokens
  • Add custom tokens by contract address
  • Enable or disable Etherscan for transaction history

Litecoin Specific Features

  • Litecoin coin control (specify specific outputs to spend)
  • Automatically generate new addresses
  • Specify multiple recipients for batch sending

Monero.com by Cake Wallet for Android and iOS

Open Source Monero-Only Wallet

Exchanging to/from other assets is also supported.

APK Verification

APK releases on GitHub, Accrescent, and F-Droid use the same key. They can easily be verified using apksigner or AppVerifier.

See below for Cake Wallet's SHA-256 signing certificate hash:

com.cakewallet.cake_wallet
C5:40:53:AB:0F:10:D9:54:17:62:A3:DA:76:65:AE:3D:BA:5E:7C:74:3A:B4:F1:08:A5:34:9D:62:AC:10:6E:F5

Support

We have 24/7 free support. Please contact support@cakewallet.com

We have excellent user guides, which are also open-source and open for contributions: https://docs.cakewallet.com

Build Instructions

Building Cake Wallet for each platform is covered in the platform-specific guides under docs/builds/:

Contributing

Improving translations

Edit the applicable strings_XX.arb file in res/values/ and open a pull request with the changes.

Current list of language files:

  • English
  • Spanish
  • French
  • German
  • Italian
  • Portuguese
  • Dutch
  • Polish
  • Croatian
  • Russian
  • Ukrainian
  • Hindi
  • Japanese
  • Chinese
  • Korean
  • Thai
  • Arabic
  • Turkish
  • Burmese
  • Urdu
  • Bulgarian
  • Czech
  • Indonesian
  • Hausa
  • Yoruba

Add a new language

  1. Create a new strings_XX.arb file in res/values/, replacing XX with the language's ISO 639-1 code.

  2. Edit the strings in this file, replacing XXX below with the translation for each string.

"welcome": "Welcome to", -> "welcome": "XXX",

  1. For strings where there is a variable, denoted by a $ symbol and braces, such as ${status}, the string in braces should not be translated. For example, when editing line 106:

"time" : "${minutes}m ${seconds}s"

The only parts to be translated, if needed, are the values m and s after the variables.

  1. Add the language to lib/entities/language_service.dart under both supportedLocales and localeCountryCode. Use the name of the language in the local language and in English in parentheses after for supportedLocales. Use the ISO 3166-1 alpha-3 code for localeCountryCode. You must choose one country, so choose the country with the most native speakers of this language or is otherwise best associated with this language.

  2. Add a relevant flag to assets/images/flags/XXXX.png, replacing XXXX with the 3 letters localeCountryCode. The image must be 42x26 pixels with 3 pixels of transparent margin on all 4 sides. You can resize the flag with paint.net to 36x20 pixels, expand the canvas to 42x26 pixels with the flag anchored in the middle, and then manually delete the 3 pixels on each side to make it transparent. Or you can use another program like Photoshop.

  3. Add the new language code to tool/utils/translation/translation_constants.dart

Add a new fiat currency

  1. Check with Cake Wallet support to see if the desired new fiat currency is available through our fiat API. Not all fiat currencies are.

  2. If the currency is associated strongly with a specific issuing country, map the ISO 4217 currency code with the applicable ISO 3166-1 alpha-3 code in lib/entities/fiat_currency.dart. If the currency is used in a whole region or organization, then map with a reasonable interpretation of this (eg: eur countryCode for EUR symbol).

  3. Add the raw mapping underneath in lib/entities/fiat_currency.dart following the same format as the others.

  4. Add a flag of the issuing country or organization to assets/images/flags/XXXX.png, replacing XXXX with the ISO 3166-1 alpha-3 code used above (eg: usa.png, eur.png). Do not add this if the flag with the same name already exists. The image must be 42x26 pixels with a 3 pixels of transparent margin on all 4 sides.


Copyright (C) 2018-2025 Cake Labs LLC

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