Merge pull request #194 from ipfs/refactor/core

refactor(core): split IPFS into multiple files

Author: dignifiedquire

src/core/index.js

@@ -0,0 +1,26 @@
+'use strict'
+
+module.exports = function block (self) {
+  return {
+    get: (multihash, callback) => {
+      self._blockS.getBlock(multihash, callback)
+    },
+    put: (block, callback) => {
+      self._blockS.addBlock(block, callback)
+    },
+    del: (multihash, callback) => {
+      self._blockS.deleteBlock(multihash, callback)
+    },
+    stat: (multihash, callback) => {
+      self._blockS.getBlock(multihash, (err, block) => {
+        if (err) {
+          return callback(err)
+        }
+        callback(null, {
+          Key: multihash,
+          Size: block.data.length
+        })
+      })
+    }
+  }
+}

src/core/init.js

@@ -0,0 +1,39 @@
+'use strict'
+
+module.exports = function bootstrap (self) {
+  return {
+    list: (callback) => {
+      self._repo.config.get((err, config) => {
+        if (err) {
+          return callback(err)
+        }
+        callback(null, config.Bootstrap)
+      })
+    },
+    add: (multiaddr, callback) => {
+      self._repo.config.get((err, config) => {
+        if (err) {
+          return callback(err)
+        }
+        config.Bootstrap.push(multiaddr)
+        self._repo.config.set(config, callback)
+      })
+    },
+    rm: (multiaddr, callback) => {
+      self._repo.config.get((err, config) => {
+        if (err) {
+          return callback(err)
+        }
+
+        config.Bootstrap = config.Bootstrap.filter((mh) => {
+          if (mh === multiaddr) {
+            return false
+          } else {
+            return true
+          }
+        })
+        self._repo.config.set(config, callback)
+      })
+    }
+  }
+}

src/core/ipfs/block.js

@@ -0,0 +1,14 @@
+'use strict'
+
+module.exports = function config (self) {
+  return {
+    // cli only feature built with show and replace
+    // edit: (callback) => {},
+    replace: (config, callback) => {
+      self._repo.config.set(config, callback)
+    },
+    show: (callback) => {
+      self._repo.config.get(callback)
+    }
+  }
+}

src/core/ipfs/bootstrap.js

@@ -0,0 +1,13 @@
+'use strict'
+
+const importer = require('ipfs-data-importing').import
+
+module.exports = function libp2p (self) {
+  return {
+    add: (path, options, callback) => {
+      options.path = path
+      options.dagService = self._dagS
+      importer(options, callback)
+    }
+  }
+}

src/core/ipfs/config.js

@@ -0,0 +1,25 @@
+'use strict'
+
+module.exports = function id (self) {
+  return (opts, callback) => {
+    if (typeof opts === 'function') {
+      callback = opts
+      opts = {}
+    }
+    if (!self._peerInfo) { // because of split second warmup
+      setTimeout(ready, 100)
+    } else {
+      ready()
+    }
+
+    function ready () {
+      callback(null, {
+        ID: self._peerInfo.id.toB58String(),
+        PublicKey: self._peerInfo.id.pubKey.toString('base64'),
+        Addresses: self._peerInfo.multiaddrs.map((ma) => { return ma.toString() }),
+        AgentVersion: 'js-ipfs',
+        ProtocolVersion: '9000'
+      })
+    }
+  }
+}

src/core/ipfs/files.js

@@ -0,0 +1,88 @@
+'use strict'
+
+const peerId = require('peer-id')
+const BlockService = require('ipfs-block-service')
+const DagService = require('ipfs-merkle-dag').DAGService
+const path = require('path')
+
+module.exports = function init (self) {
+  return (opts, callback) => {
+    opts = opts || {}
+    opts.emptyRepo = opts.emptyRepo || false
+    opts.bits = opts.bits || 2048
+
+    // Pre-set config values.
+    var config = require('../../init-files/default-config.json')
+
+    // Verify repo does not yet exist.
+    self._repo.exists((err, exists) => {
+      if (err) {
+        return callback(err)
+      }
+
+      if (exists === true) {
+        return callback(new Error('repo already exists'))
+      }
+
+      generateAndSetKeypair()
+    })
+
+    // Generate peer identity keypair + transform to desired format + add to config.
+    function generateAndSetKeypair () {
+      var keys = peerId.create({
+        bits: opts.bits
+      })
+      config.Identity = {
+        PeerID: keys.toB58String(),
+        PrivKey: keys.privKey.toString('base64')
+      }
+
+      writeVersion()
+    }
+
+    function writeVersion () {
+      const version = '3'
+
+      self._repo.version.set(version, (err) => {
+        if (err) { return callback(err) }
+
+        writeConfig()
+      })
+    }
+
+    // Write the config to the repo.
+    function writeConfig () {
+      self._repo.config.set(config, (err) => {
+        if (err) { return callback(err) }
+
+        addDefaultAssets()
+      })
+    }
+
+    // Add the default assets to the repo.
+    function addDefaultAssets () {
+      // Skip this step on the browser, or if emptyRepo was supplied.
+      const isNode = !global.window
+      if (!isNode || opts.emptyRepo) {
+        return doneImport(null)
+      }
+
+      const importer = require('ipfs-data-importing')
+      const blocks = new BlockService(self._repo)
+      const dag = new DagService(blocks)
+
+      const initDocsPath = path.join(__dirname, '../../init-files/init-docs')
+
+      importer.import(initDocsPath, dag, {
+        recursive: true
+      }, doneImport)
+
+      function doneImport (err, stat) {
+        if (err) { return callback(err) }
+
+        // All finished!
+        callback(null, true)
+      }
+    }
+  }
+}

src/core/ipfs/id.js

@@ -0,0 +1,87 @@
+'use strict'
+
+const peerId = require('peer-id')
+const PeerInfo = require('peer-info')
+const multiaddr = require('multiaddr')
+const Libp2pNode = require('libp2p-ipfs').Node
+
+module.exports = function libp2p (self) {
+  const OFFLINE_ERROR = new Error('This command must be run in online mode. Try running \'ipfs daemon\' first.')
+
+  return {
+    start: (callback) => {
+      self._libp2pNode = new Libp2pNode(self._peerInfo)
+      self._libp2pNode.start(() => {
+        // TODO connect to bootstrap nodes, it will get us more addrs
+        self._peerInfo.multiaddrs.forEach((ma) => {
+          console.log('Swarm listening on', ma.toString())
+        })
+        callback()
+      })
+    },
+    stop: (callback) => {
+      self._libp2pNode.swarm.close(callback)
+    },
+    swarm: {
+      peers: (callback) => {
+        if (!self._libp2pNode) {
+          return callback(OFFLINE_ERROR)
+        }
+
+        callback(null, self._peerInfoBook.getAll())
+      },
+      // all the addrs we know
+      addrs: (callback) => {
+        if (!self._libp2pNode) {
+          return callback(OFFLINE_ERROR)
+        }
+        // TODO
+        throw new Error('Not implemented')
+      },
+      localAddrs: (callback) => {
+        if (!self._libp2pNode) {
+          return callback(OFFLINE_ERROR)
+        }
+
+        callback(null, self._peerInfo.multiaddrs)
+      },
+      connect: (ma, callback) => {
+        if (!self._libp2pNode) {
+          return callback(OFFLINE_ERROR)
+        }
+
+        const idStr = ma.toString().match(/\/ipfs\/(.*)/)
+        if (!idStr) {
+          return callback(new Error('invalid multiaddr'))
+        }
+        const id = peerId.createFromB58String(idStr[1])
+        const peer = new PeerInfo(id)
+
+        ma = ma.toString().replace(/\/ipfs\/(.*)/, '') // FIXME remove this when multiaddr supports ipfs
+
+        peer.multiaddr.add(multiaddr(ma))
+        self._peerInfoBook.put(peer)
+
+        self._libp2pNode.swarm.dial(peer, (err) => {
+          callback(err, id)
+        })
+      },
+      disconnect: (callback) => {
+        if (!self._libp2pNode) {
+          return callback(OFFLINE_ERROR)
+        }
+
+        throw new Error('Not implemented')
+      },
+      filters: () => {
+        // TODO
+        throw new Error('Not implemented')
+      }
+    },
+    routing: {},
+    records: {},
+    ping: () => {
+      throw new Error('Not implemented')
+    }
+  }
+}