1 files changed, 0 insertions, 204 deletions
diff --git a/services/sync/modules/collection_validator.js b/services/sync/modules/collection_validator.js
deleted file mode 100644
index 41141bba30..0000000000
--- a/services/sync/modules/collection_validator.js
+++ /dev/null
@@ -1,204 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-const Cu = Components.utils;
-
-Cu.import("resource://services-sync/record.js");
-Cu.import("resource://services-sync/main.js");
-
-this.EXPORTED_SYMBOLS = ["CollectionValidator", "CollectionProblemData"];
-
-class CollectionProblemData {
-  constructor() {
-    this.missingIDs = 0;
-    this.duplicates = [];
-    this.clientMissing = [];
-    this.serverMissing = [];
-    this.serverDeleted = [];
-    this.serverUnexpected = [];
-    this.differences = [];
-  }
-
-  /**
-   * Produce a list summarizing problems found. Each entry contains {name, count},
-   * where name is the field name for the problem, and count is the number of times
-   * the problem was encountered.
-   *
-   * Validation has failed if all counts are not 0.
-   */
-  getSummary() {
-    return [
-      { name: "clientMissing", count: this.clientMissing.length },
-      { name: "serverMissing", count: this.serverMissing.length },
-      { name: "serverDeleted", count: this.serverDeleted.length },
-      { name: "serverUnexpected", count: this.serverUnexpected.length },
-      { name: "differences", count: this.differences.length },
-      { name: "missingIDs", count: this.missingIDs },
-      { name: "duplicates", count: this.duplicates.length }
-    ];
-  }
-}
-
-class CollectionValidator {
-  // Construct a generic collection validator. This is intended to be called by
-  // subclasses.
-  // - name: Name of the engine
-  // - idProp: Property that identifies a record. That is, if a client and server
-  //   record have the same value for the idProp property, they should be
-  //   compared against eachother.
-  // - props: Array of properties that should be compared
-  constructor(name, idProp, props) {
-    this.name = name;
-    this.props = props;
-    this.idProp = idProp;
-  }
-
-  // Should a custom ProblemData type be needed, return it here.
-  emptyProblemData() {
-    return new CollectionProblemData();
-  }
-
-  getServerItems(engine) {
-    let collection = engine.itemSource();
-    let collectionKey = engine.service.collectionKeys.keyForCollection(engine.name);
-    collection.full = true;
-    let items = [];
-    collection.recordHandler = function(item) {
-      item.decrypt(collectionKey);
-      items.push(item.cleartext);
-    };
-    let resp = collection.getBatched();
-    if (!resp.success) {
-      throw resp;
-    }
-    return items;
-  }
-
-  // Should return a promise that resolves to an array of client items.
-  getClientItems() {
-    return Promise.reject("Must implement");
-  }
-
-  // Turn the client item into something that can be compared with the server item,
-  // and is also safe to mutate.
-  normalizeClientItem(item) {
-    return Cu.cloneInto(item, {});
-  }
-
-  // Turn the server item into something that can be easily compared with the client
-  // items.
-  normalizeServerItem(item) {
-    return item;
-  }
-
-  // Return whether or not a server item should be present on the client. Expected
-  // to be overridden.
-  clientUnderstands(item) {
-    return true;
-  }
-
-  // Return whether or not a client item should be present on the server. Expected
-  // to be overridden
-  syncedByClient(item) {
-    return true;
-  }
-
-  // Compare the server item and the client item, and return a list of property
-  // names that are different. Can be overridden if needed.
-  getDifferences(client, server) {
-    let differences = [];
-    for (let prop of this.props) {
-      let clientProp = client[prop];
-      let serverProp = server[prop];
-      if ((clientProp || "") !== (serverProp || "")) {
-        differences.push(prop);
-      }
-    }
-    return differences;
-  }
-
-  // Returns an object containing
-  //   problemData: an instance of the class returned by emptyProblemData(),
-  //   clientRecords: Normalized client records
-  //   records: Normalized server records,
-  //   deletedRecords: Array of ids that were marked as deleted by the server.
-  compareClientWithServer(clientItems, serverItems) {
-    clientItems = clientItems.map(item => this.normalizeClientItem(item));
-    serverItems = serverItems.map(item => this.normalizeServerItem(item));
-    let problems = this.emptyProblemData();
-    let seenServer = new Map();
-    let serverDeleted = new Set();
-    let allRecords = new Map();
-
-    for (let record of serverItems) {
-      let id = record[this.idProp];
-      if (!id) {
-        ++problems.missingIDs;
-        continue;
-      }
-      if (record.deleted) {
-        serverDeleted.add(record);
-      } else {
-        let possibleDupe = seenServer.get(id);
-        if (possibleDupe) {
-          problems.duplicates.push(id);
-        } else {
-          seenServer.set(id, record);
-          allRecords.set(id, { server: record, client: null, });
-        }
-        record.understood = this.clientUnderstands(record);
-      }
-    }
-
-    let recordPairs = [];
-    let seenClient = new Map();
-    for (let record of clientItems) {
-      let id = record[this.idProp];
-      record.shouldSync = this.syncedByClient(record);
-      seenClient.set(id, record);
-      let combined = allRecords.get(id);
-      if (combined) {
-        combined.client = record;
-      } else {
-        allRecords.set(id,  { client: record, server: null });
-      }
-    }
-
-    for (let [id, { server, client }] of allRecords) {
-      if (!client && !server) {
-        throw new Error("Impossible: no client or server record for " + id);
-      } else if (server && !client) {
-        if (server.understood) {
-          problems.clientMissing.push(id);
-        }
-      } else if (client && !server) {
-        if (client.shouldSync) {
-          problems.serverMissing.push(id);
-        }
-      } else {
-        if (!client.shouldSync) {
-          if (!problems.serverUnexpected.includes(id)) {
-            problems.serverUnexpected.push(id);
-          }
-          continue;
-        }
-        let differences = this.getDifferences(client, server);
-        if (differences && differences.length) {
-          problems.differences.push({ id, differences });
-        }
-      }
-    }
-    return {
-      problemData: problems,
-      clientRecords: clientItems,
-      records: serverItems,
-      deletedRecords: [...serverDeleted]
-    };
-  }
-}
-
-// Default to 0, some engines may override.
-CollectionValidator.prototype.version = 0;