Allows client to provide epub for faster decrypt

.vscode/settings.json

@@ -4,10 +4,5 @@
   "debug.node.autoAttach": "on",
   "editor.formatOnSave": true,
   "editor.defaultFormatter": "esbenp.prettier-vscode",
-  "cSpell.words": [
-    "Epub",
-    "ISEA",
-    "PUBKEY",
-    "Reqs"
-  ]
+  "cSpell.words": ["Epub", "GUNRPC", "ISEA", "PUBKEY", "Reqs", "uuidv"]
 }

services/gunDB/rpc/index.js

@@ -27,9 +27,10 @@ const PATH_SEPARATOR = '>'
 /**
  * @param {ValidDataValue} value
  * @param {string} publicKey
+ * @param {string=} epubForDecryption
  * @returns {Promise<ValidDataValue>}
  */
-const deepDecryptIfNeeded = async (value, publicKey) => {
+const deepDecryptIfNeeded = async (value, publicKey, epubForDecryption) => {
   if (Schema.isObj(value)) {
     return Bluebird.props(
       mapValues(value, o => deepDecryptIfNeeded(o, publicKey))
@@ -49,7 +50,15 @@ const deepDecryptIfNeeded = async (value, publicKey) => {
     if (user.is.pub === publicKey || 'me' === publicKey) {
       sec = getMySecret()
     } else {
-      sec = await SEA.secret(await pubToEpub(publicKey), user._.sea)
+      sec = await SEA.secret(
+        await (() => {
+          if (epubForDecryption) {
+            return epubForDecryption
+          }
+          return pubToEpub(publicKey)
+        })(),
+        user._.sea
+      )
     }
 
     const decrypted = SEA.decrypt(value, sec)

services/gunDB/sockets/index.js

@@ -121,13 +121,15 @@ const executeGunQuery = (query, method, listener) => {
  * @param {string} queryData.publicKeyForDecryption
  * @param {string} queryData.subscriptionId
  * @param {string} queryData.deviceId
+ * @param {string=} queryData.epubForDecryption
  * @returns {GunListener}
  */
 const queryListenerCallback = ({
   emit,
   publicKeyForDecryption,
   subscriptionId,
-  deviceId
+  deviceId,
+  epubForDecryption
 }) => async (data, key, _msg, event) => {
   try {
     const subscription = Subscriptions.get({
@@ -142,8 +144,13 @@ const queryListenerCallback = ({
       })
     }
     const eventName = `query:data`
-    if (publicKeyForDecryption) {
-      const decData = await deepDecryptIfNeeded(data, publicKeyForDecryption)
+
+    if (publicKeyForDecryption?.length > 15) {
+      const decData = await deepDecryptIfNeeded(
+        data,
+        publicKeyForDecryption,
+        epubForDecryption
+      )
       emit(eventName, { subscriptionId, response: { data: decData, key } })
       return
     }
@@ -250,7 +257,8 @@ const startSocket = socket => {
       })
     }
 
-    on('subscribe:query', ({ $shock, publicKey }, response) => {
+    on('subscribe:query', (query, response) => {
+      const { $shock, publicKey, epubForDecryption } = query
       const subscriptionId = uuidv4()
       try {
         if (!isAuthenticated()) {
@@ -277,7 +285,8 @@ const startSocket = socket => {
           emit,
           publicKeyForDecryption: publicKey,
           subscriptionId,
-          deviceId: encryptionId
+          deviceId: encryptionId,
+          epubForDecryption
         })
 
         socketCallback(null, {

src/routes.js

@@ -3112,6 +3112,7 @@ module.exports = async (
      * @prop {string} path
      * @prop {string=} publicKey
      * @prop {string=} publicKeyForDecryption
+     * @prop {string=} epubForDecryption
      */
     /**
      * @param {HandleGunFetchParams} args0
@@ -3122,7 +3123,8 @@ module.exports = async (
       startFromUserGraph,
       path,
       publicKey,
-      publicKeyForDecryption
+      publicKeyForDecryption,
+      epubForDecryption
     }) => {
       const keys = path.split('>')
       const { tryAndWait } = require('../services/gunDB/contact-api/utils')
@@ -3141,7 +3143,8 @@ module.exports = async (
               res(
                 await GunWriteRPC.deepDecryptIfNeeded(
                   data,
-                  publicKeyForDecryption
+                  publicKeyForDecryption,
+                  epubForDecryption
                 )
               )
             } else {
@@ -3159,114 +3162,75 @@ module.exports = async (
      * Used decryption of incoming data.
      */
     const PUBKEY_FOR_DECRYPT_HEADER = 'public-key-for-decryption'
+    /**
+     * Used decryption of incoming data.
+     */
+    const EPUB_FOR_DECRYPT_HEADER = 'epub-for-decryption'
 
     ap.get('/api/gun/once/:path', async (req, res) => {
       const publicKeyForDecryption = req.header(PUBKEY_FOR_DECRYPT_HEADER)
+      const epubForDecryption = req.header(EPUB_FOR_DECRYPT_HEADER)
       const { path } = req.params
-      try {
-        const data = await handleGunFetch({
+      res.status(200).json({
+        data: await handleGunFetch({
           path,
           startFromUserGraph: false,
           type: 'once',
-          publicKeyForDecryption
+          publicKeyForDecryption,
+          epubForDecryption
         })
-        res.status(200).json({
-          data
       })
-      } catch (err) {
-        logger.error('error in rpc once')
-        logger.error(err)
-        res
-          .status(
-            err.message === Common.Constants.ErrorCode.NOT_AUTH ? 401 : 500
-          )
-          .json({
-            errorMessage: err.message
-          })
-      }
     })
 
     ap.get('/api/gun/load/:path', async (req, res) => {
       const publicKeyForDecryption = req.header(PUBKEY_FOR_DECRYPT_HEADER)
+      const epubForDecryption = req.header(EPUB_FOR_DECRYPT_HEADER)
       const { path } = req.params
-      try {
-        const data = await handleGunFetch({
+      res.status(200).json({
+        data: await handleGunFetch({
           path,
           startFromUserGraph: false,
           type: 'load',
-          publicKeyForDecryption
+          publicKeyForDecryption,
+          epubForDecryption
         })
-        res.status(200).json({
-          data
       })
-      } catch (err) {
-        logger.error('error in rpc load')
-        logger.error(err)
-        res
-          .status(
-            err.message === Common.Constants.ErrorCode.NOT_AUTH ? 401 : 500
-          )
-          .json({
-            errorMessage: err.message
-          })
-      }
     })
 
     ap.get('/api/gun/user/once/:path', async (req, res) => {
       const publicKeyForDecryption = req.header(PUBKEY_FOR_DECRYPT_HEADER)
+      const epubForDecryption = req.header(EPUB_FOR_DECRYPT_HEADER)
       const { path } = req.params
-      try {
-        const data = await handleGunFetch({
+      res.status(200).json({
+        data: await handleGunFetch({
           path,
           startFromUserGraph: true,
           type: 'once',
-          publicKeyForDecryption
+          publicKeyForDecryption,
+          epubForDecryption
         })
-        res.status(200).json({
-          data
       })
-      } catch (err) {
-        logger.error('error in rpc once user')
-        logger.error(err)
-        res
-          .status(
-            err.message === Common.Constants.ErrorCode.NOT_AUTH ? 401 : 500
-          )
-          .json({
-            errorMessage: err.message
-          })
-      }
     })
 
     ap.get('/api/gun/user/load/:path', async (req, res) => {
       const publicKeyForDecryption = req.header(PUBKEY_FOR_DECRYPT_HEADER)
+      const epubForDecryption = req.header(EPUB_FOR_DECRYPT_HEADER)
       const { path } = req.params
-      try {
-        const data = await handleGunFetch({
+      res.status(200).json({
+        data: await handleGunFetch({
           path,
           startFromUserGraph: true,
           type: 'load',
-          publicKeyForDecryption
+          publicKeyForDecryption,
+          epubForDecryption
         })
-        res.status(200).json({
-          data
       })
-      } catch (err) {
-        logger.error('error in rpc load user')
-        logger.error(err)
-        res
-          .status(
-            err.message === Common.Constants.ErrorCode.NOT_AUTH ? 401 : 500
-          )
-          .json({
-            errorMessage: err.message
-          })
-      }
     })
 
     ap.get('/api/gun/otheruser/:publicKey/:type/:path', async (req, res) => {
       const allowedTypes = ['once', 'load', 'open']
       const publicKeyForDecryption = req.header(PUBKEY_FOR_DECRYPT_HEADER)
+      const epubForDecryption = req.header(EPUB_FOR_DECRYPT_HEADER)
       const { path /*:rawPath*/, publicKey, type } = req.params
       console.log(path)
       // const path = decodeURI(rawPath)
@@ -3290,7 +3254,8 @@ module.exports = async (
             startFromUserGraph: false,
             type,
             publicKey,
-            publicKeyForDecryption
+            publicKeyForDecryption,
+            epubForDecryption
           })
         })
       } catch (err) {