From d191876ea9f3786798266eceb82c894153968d1d Mon Sep 17 00:00:00 2001
From: haad <haad@headbanggames.com>
Date: Sat, 17 Mar 2018 08:11:02 +0200
Subject: [PATCH] Use ipfs-pubsub-1on1 to exchange heads between connected
 peers

---
 package-lock.json                    | 1672 ++++++++++++++++----------
 package.json                         |   11 +-
 src/OrbitDB.js                       |   42 +-
 test/replicate-automatically.test.js |   13 +-
 4 files changed, 1081 insertions(+), 657 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 7f4186d..6c3b582 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,13 +4,6 @@
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-      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
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       "dev": true,
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       "version": "1.5.5",
       "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-1.5.5.tgz",
       "integrity": "sha512-mQdgLPc/Vjfr3VWqWbfxW8yQNiJCbAZ+Gf6GDu1Cy0bdb33ofyiNGBtAY96jHFhDuivCwgW1H9DgTON+INiXgg==",
       "requires": {
-        "bl": "1.2.1",
+        "bl": "1.2.2",
         "end-of-stream": "1.4.1",
         "readable-stream": "2.3.5",
         "xtend": "4.0.1"
@@ -10099,25 +10552,6 @@
         }
       }
     },
-    "tough-cookie": {
-      "version": "2.3.4",
-      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.4.tgz",
-      "integrity": "sha512-TZ6TTfI5NtZnuyy/Kecv+CnoROnyXn2DN97LontgQpCwsX2XyLYCC0ENhYkehSOwAp8rTQKc/NUIF7BkQ5rKLA==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "punycode": "1.4.1"
-      },
-      "dependencies": {
-        "punycode": {
-          "version": "1.4.1",
-          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
-          "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
-          "dev": true,
-          "optional": true
-        }
-      }
-    },
     "traverse": {
       "version": "0.6.6",
       "resolved": "https://registry.npmjs.org/traverse/-/traverse-0.6.6.tgz",
@@ -10231,13 +10665,6 @@
         }
       }
     },
-    "uid-number": {
-      "version": "0.0.6",
-      "resolved": "https://registry.npmjs.org/uid-number/-/uid-number-0.0.6.tgz",
-      "integrity": "sha1-DqEOgDXo61uOREnwbaHHMGY7qoE=",
-      "dev": true,
-      "optional": true
-    },
     "ultron": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
@@ -10530,18 +10957,6 @@
         "safe-buffer": "5.1.1"
       }
     },
-    "verror": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
-      "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "assert-plus": "1.0.0",
-        "core-util-is": "1.0.2",
-        "extsprintf": "1.3.0"
-      }
-    },
     "vise": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/vise/-/vise-2.0.2.tgz",
@@ -10574,7 +10989,7 @@
       "integrity": "sha512-RSlipNQB1u48cq0wH/BNfCu1tD/cJ8ydFIkNYhp9o+3d+8unClkIovpW5qpFPgmL9OE48wfAnlZydXByWP82AA==",
       "dev": true,
       "requires": {
-        "chokidar": "2.0.2",
+        "chokidar": "2.0.3",
         "graceful-fs": "4.1.11",
         "neo-async": "2.5.0"
       }
@@ -10591,7 +11006,7 @@
       "requires": {
         "acorn": "5.5.3",
         "acorn-dynamic-import": "2.0.2",
-        "ajv": "6.2.1",
+        "ajv": "6.3.0",
         "ajv-keywords": "3.1.0",
         "async": "2.6.0",
         "enhanced-resolve": "3.4.1",
@@ -10613,17 +11028,6 @@
         "yargs": "8.0.2"
       },
       "dependencies": {
-        "ajv": {
-          "version": "6.2.1",
-          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.2.1.tgz",
-          "integrity": "sha1-KKarxJOiq+D7TIUHrK7bQ/pVBnE=",
-          "dev": true,
-          "requires": {
-            "fast-deep-equal": "1.1.0",
-            "fast-json-stable-stringify": "2.0.0",
-            "json-schema-traverse": "0.3.1"
-          }
-        },
         "ansi-regex": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
diff --git a/package.json b/package.json
index 9a08605..ece6ce1 100644
--- a/package.json
+++ b/package.json
@@ -13,15 +13,16 @@
   },
   "main": "src/OrbitDB.js",
   "dependencies": {
+    "ipfs-pubsub-1on1": "~0.0.2",
     "logplease": "^1.2.14",
     "multihashes": "^0.4.12",
     "orbit-db-cache": "~0.2.2",
-    "orbit-db-counterstore": "~1.2.0",
-    "orbit-db-docstore": "~1.2.0",
-    "orbit-db-eventstore": "~1.2.0",
-    "orbit-db-feedstore": "~1.2.0",
+    "orbit-db-counterstore": "~1.3.0",
+    "orbit-db-docstore": "~1.3.0",
+    "orbit-db-eventstore": "~1.3.0",
+    "orbit-db-feedstore": "~1.3.0",
     "orbit-db-keystore": "~0.1.0",
-    "orbit-db-kvstore": "~1.2.0",
+    "orbit-db-kvstore": "~1.3.0",
     "orbit-db-pubsub": "~0.4.0"
   },
   "devDependencies": {
diff --git a/src/OrbitDB.js b/src/OrbitDB.js
index c81b9dd..2b30f7d 100644
--- a/src/OrbitDB.js
+++ b/src/OrbitDB.js
@@ -7,6 +7,7 @@ const KeyValueStore = require('orbit-db-kvstore')
 const CounterStore = require('orbit-db-counterstore')
 const DocumentStore = require('orbit-db-docstore')
 const Pubsub = require('orbit-db-pubsub')
+const Channel = require('ipfs-pubsub-1on1')
 const Cache = require('orbit-db-cache')
 const Keystore = require('orbit-db-keystore')
 const AccessController = require('./ipfs-access-controller')
@@ -37,6 +38,7 @@ class OrbitDB {
     this.directory = directory || './orbitdb'
     this.keystore = options.keystore || Keystore.create(path.join(this.directory, this.id, '/keystore'))
     this.key = this.keystore.getKey(this.id) || this.keystore.createKey(this.id)
+    this._directConnections = {}
   }
 
   /* Databases */
@@ -85,6 +87,12 @@ class OrbitDB {
       delete this.stores[db.address.toString()]
     }
 
+    // Close all direct connections to peers
+    Object.keys(this._directConnections).forEach(e => {
+      this._directConnections[e].close()
+      delete this._directConnections[e]
+    })
+
     // Disconnect from pubsub
     if (this._pubsub) 
       this._pubsub.disconnect()
@@ -118,11 +126,11 @@ class OrbitDB {
       accessController: accessController, 
       keystore: this.keystore,
       cache: cache,
+      onClose: this._onClose.bind(this),
     })
 
     const store = new Store(this._ipfs, this.id, address, opts)
     store.events.on('write', this._onWrite.bind(this))
-    store.events.on('closed', this._onClosed.bind(this))
 
     // ID of the store is the address as a string
     const addr = address.toString()
@@ -145,33 +153,49 @@ class OrbitDB {
     const store = this.stores[address]
     try {
       logger.debug(`Received ${heads.length} heads for '${address}':\n`, JSON.stringify(heads.map(e => e.hash), null, 2))
-      await store.sync(heads)
+      if (store)
+        await store.sync(heads)
     } catch (e) {
       logger.error(e)
     }
   }
 
   // Callback for when a peer connected to a database
-  _onPeerConnected (address, peer, room) {
+  async _onPeerConnected (address, peer, room) {
     logger.debug(`New peer '${peer}' connected to '${address}'`)
     const store = this.stores[address]
     if (store) {
+      // Create a direct channel to the connected peer
+      let channel = this._directConnections[peer]
+      if (!channel) {
+        try {
+          logger.debug(`Create a channel`)
+          channel = await Channel.open(this._ipfs, peer)
+          channel.on('message', (message) => this._onMessage(address, JSON.parse(message.data)))
+          this._directConnections[peer] = channel
+          logger.debug(`Channel created`)
+        } catch (e) {
+          console.error(e)
+          logger.error(e)
+        }
+      }
       // Send the newly connected peer our latest heads
       let heads = store._oplog.heads
       if (heads.length > 0) {
+        // Wait for the direct channel to be fully connected
+        await channel.connect()
         logger.debug(`Send latest heads of '${address}':\n`, JSON.stringify(heads.map(e => e.hash), null, 2))
-        room.sendTo(peer, JSON.stringify(heads))
+        channel.send(JSON.stringify(heads))
       }
       store.events.emit('peer', peer)
+    } else {
+      logger.error(`Database '${address}' is not open!`)
     }
   }
 
   // Callback when database was closed
-  _onClosed (address) {
-    logger.debug(`Database '${address}' was closed`)
-
-    // Remove the callback from the database
-    this.stores[address].events.removeAllListeners('closed')
+  _onClose (address) {
+    logger.debug(`Close ${address}`)
 
     // Unsubscribe from pubsub
     if(this._pubsub)
diff --git a/test/replicate-automatically.test.js b/test/replicate-automatically.test.js
index 74a32ff..40751aa 100644
--- a/test/replicate-automatically.test.js
+++ b/test/replicate-automatically.test.js
@@ -41,16 +41,11 @@ describe('orbit-db - Automatic Replication', function() {
     if(orbitdb2) 
       await orbitdb2.stop()
 
-    return new Promise((resolve) => {
-      setTimeout(async () => {
-        if (ipfs1)
-          await ipfs1.stop()
+    if (ipfs1)
+      await ipfs1.stop()
 
-        if (ipfs2)
-          await ipfs2.stop()
-        resolve()
-      }, 2000)
-    })
+    if (ipfs2)
+      await ipfs2.stop()
   })
 
   beforeEach(async () => {