Signing in to Feedly with Reeder 4 on iOS

Reeder 4 works with Feedly but only if the account is already authenticated, it seems unlikely Reeder 4 will see an update to fix this. It is possible to copy the authentication from another session and add it manually to the Keychain. There are options with and without a jailbreak.

Get Feedly Authentication

The authentication can be obtained from the macOS Keychain or an iOS backup.

Option 1: macOS Keychain

1. Download Reeder 5 for macOS

2. Sign in to Feedly

3. Dump Keychain:

   security dump-keychain -d login.keychain

   It should include something like this:

   keychain: "/Users/dave/Library/Keychains/login.keychain-db"
   version: 512
   class: "genp"
   attributes:
       0x00000007 <blob>="com.reederapp.Feedly"
       0x00000008 <blob>=<NULL>
       "acct"<blob>="<account>"
       "cdat"<timedate>=0x32303231313033303135323432315A00  "20211030152421Z\000"
       "crtr"<uint32>=<NULL>
       "cusi"<sint32>=<NULL>
       "desc"<blob>=<NULL>
       "gena"<blob>=<NULL>
       "icmt"<blob>=<NULL>
       "invi"<sint32>=<NULL>
       "mdat"<timedate>=0x32303231313033303135323432315A00  "20211030152421Z\000"
       "nega"<sint32>=<NULL>
       "prot"<blob>=<NULL>
       "scrp"<sint32>=<NULL>
       "svce"<blob>="com.reederapp.Feedly"
       "type"<uint32>=<NULL>
   data:
   "{"consumerSecret":"","oauthTokenExpiresAt":657905061.65287197,"oauthRefreshToken":"<oauthRefreshToken>:reeder4","oauthToken":"<oauthToken>:reeder4","version":2,"consumerKey":"","oauthTokenSecret":"","oauthVerifier":""}"
   

Option 2: iOS Backup

1. Backup iOS device

2. Install a fork of iOS Backup Extraction:

   go install github.com/dnicolson/ios/cmd/irestore@master

3. Run irestore <device> dumpkeys out.json

4. The object with com.reederapp.Feedly as the value for svce will contain the base 64 encoded data for the v_Data key

Add Feedly Account

With an Unencrypted Backup

1. Backup iOS device

2. Open Manifest.db in the backup which can be found in ~/Library/Application Support/MobileSync/Backup and run the following query:

   SELECT fileID FROM "Files" where relativePath = 'Documents/users.json'

3. The fileID represents the users.json file in the backup, add the following to the JSON array:

   {
       "username": "<email>",
       "id": "Feedly\/<account>",
       "serviceId": "Feedly",
       "extId": "<account>",
       "title": "Feedly",
       "sharingOnly": false
   }
   

4. Restore iOS device with modified backup

With an Encrypted Backup

1. Backup iOS device

2. In iMazing copy the document from this path to the Finder: Apps > Reeder > Documents > users.json

3. Edit users.json by adding the following to the JSON array:

   {
       "username": "<email>",
       "id": "Feedly\/<account>",
       "serviceId": "Feedly",
       "extId": "<account>",
       "title": "Feedly",
       "sharingOnly": false
   }
   

4. Copy users.json back into iMazing replacing the original file

5. Restore iOS device with modified backup

Add Keychain Item

Option 1: Modifying a Backup

1. Add a new account to Reeder on an iOS device (in this case Pocket)

2. Use iMazing to create a backup

3. Copy the backup from ~/Library/Application Support/iMazing/Backups to ~/Library/Application Support/MobileSync/Backup/

4. Run irestore <device> dumpkeys keys.json

5. Edit keys.json replacing the svce and v_Data keys with Feedly Pocket equivalents

6. Run irestore <device> encryptkeys keys.json keys.plist

7. In iMazing copy the document from this path to the Finder: File System > KeychainDomain > keychain-backup.plist

8. Copy the v_Data block from keys.plist to keychain-backup.plist where the v_PersistentRef value matches the _ref value in the original com.reederapp.Pocket object

9. Copy keychain-backup.plist back into iMazing replacing the original file

10. Sync backup

Option 2: Theos

1. Jailbreak iOS 12.5.5 device with Checkra1n

2. Install Theos https://github.com/theos/theos/wiki/Installation-macOS

3. Create new Theos instance:

   $THEOS/bin/nic.pl

   Choose iphone/tool_swift

   Enter KeychainAdd as the project name

   cd keychainadd

4. Add the following to the entitlements.plist file:

   <key>keychain-access-groups</key>
   <array>
       <string>66JC38RDUD.com.reederapp</string>
   </array>

5. Add the following to the main.swift file:

   import Foundation
   
   let auth = "{\"consumerSecret\":\"\",\"oauthTokenExpiresAt\":657905061.65287197,\"oauthRefreshToken\":\"<oauthRefreshToken>:reeder4\",\"oauthToken\":\"oauthToken:reeder4\",\"version\":2,\"consumerKey\":\"\",\"oauthTokenSecret\":\"\",\"oauthVerifier\":\"\"}".data(using: .utf8)!
   
   let attributes: [String: Any] = [
       kSecClass as String: kSecClassGenericPassword,
       kSecAttrAccessGroup as String: "66JC38RDUD.com.reederapp",
       kSecAttrAccount as String: "<account>",
       kSecAttrService as String: "com.reederapp.Feedly",
       kSecAttrAccessible as String: kSecAttrAccessibleAfterFirstUnlock,
       kSecValueData as String: auth
   ]
   
   var result: CFTypeRef?
   let status = SecItemAdd(attributes as CFDictionary, &result)
   if status == errSecSuccess {
       print("Feedly authentication added to Keychain.")
   } else {
       print("Error:", status)
   }

6. Run make

7. Copy binary to device:

   scp .theos/obj/debug/KeychainAdd root@<ip>:/KeychainAdd

8. Run /KeychainAdd on the device

9. Optionally remove the binary with rm /KeychainAdd

Option 3: keychaineditor (iOS 13.5+)

1. Jailbreak iOS 13.5 device with Unc0ver or Checkra1n

2. Add https://miro92.com/repo/ to Cydia sources

3. Install Keychain Editor (arm64) 2.5.1

4. Add 66JC38RDUD.com.reederapp entitlement:

   scp root@<ip>:/usr/local/bin/keychaineditor keychaineditor
   ldid -e keychaineditor > ent.xml
   plutil -insert keychain-access-groups.0 -string 66JC38RDUD.com.reederapp ent.xml
   ldid -Sent.xml keychaineditor
   scp keychaineditor root@<ip>:/usr/local/bin/keychaineditor
   

5. Add Keychain item on the device:

   keychaineditor -a --account <account> --service com.reederapp.Feedly --agroup 66JC38RDUD.com.reederapp --data <base64 encoded data>