773 lines
19 KiB
Go
773 lines
19 KiB
Go
// TODO: unit test critical error should shutdown the browser
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// TODO: shutdown procedure (also close reducer)
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// TODO: migrate ff commands to ff module
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// TODO: handle flag management from this package
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// TODO: * Implement Init() and Load() for firefox
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// TODO: move sql files to mozilla
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package firefox
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import (
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"database/sql"
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"errors"
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"fmt"
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"path"
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"path/filepath"
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"strings"
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"time"
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"git.sp4ke.xyz/sp4ke/gomark/mozilla"
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"git.sp4ke.xyz/sp4ke/gomark/browsers"
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"git.sp4ke.xyz/sp4ke/gomark/database"
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"git.sp4ke.xyz/sp4ke/gomark/logging"
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"git.sp4ke.xyz/sp4ke/gomark/tree"
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"git.sp4ke.xyz/sp4ke/gomark/utils"
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"git.sp4ke.xyz/sp4ke/gomark/watch"
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"github.com/fsnotify/fsnotify"
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"github.com/jmoiron/sqlx"
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sqlite3 "github.com/mattn/go-sqlite3"
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)
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var (
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ErrInitFirefox = errors.New("could not start Firefox watcher")
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log = logging.GetLogger("FF")
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)
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const (
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WatchMinJobInterval = 1500 * time.Millisecond
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TagsBranchName = mozilla.TagsBranchName // name of the `tags` branch in the node tree
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)
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//TODO!: delete
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// moz_bookmarks.type
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const (
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_ = iota
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BkTypeURL
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BkTypeTagFolder
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)
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type sqlid = mozilla.Sqlid
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type AutoIncr struct {
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ID sqlid
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}
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// TODO!: remove
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type FFPlace struct {
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URL string `db:"url"`
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Description sql.NullString `db:"description"`
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Title sql.NullString `db:"title"`
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AutoIncr
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}
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// TODO!: replace by MergedPlaceBokmark and MozBookmark below
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type FFBookmark struct {
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btype sqlid
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parent sqlid
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fk sqlid
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title string
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id sqlid
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}
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type MozBookmark = mozilla.MozBookmark
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type MozFolder = mozilla.MozFolder
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// scan all folders from moz_bookmarks and load them into the node tree
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func (ff *Firefox) scanFolders() ([]*MozFolder, error) {
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var folders []*MozFolder
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ff.folderScanMap = make(map[sqlid]*MozFolder)
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err := ff.places.Handle.Select(&folders, mozilla.QFolders)
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// store all folders in a hashmap for easier tree construction
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for _, folder := range folders {
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ff.folderScanMap[folder.Id] = folder
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}
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for _, folder := range folders {
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// Ignore the `tags` virtual folder
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if folder.Id != 4 {
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ff.addFolderNode(*folder)
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}
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}
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return folders, err
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}
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// scans bookmarks from places.sqlite and loads them into the node tree
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func (ff *Firefox) scanBookmarks() ([]*MozBookmark, error) {
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// scan folders and load them into node tree
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folders, err := ff.scanFolders()
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if err != nil {
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return nil, err
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}
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utils.UseVar(folders)
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var bookmarks []*MozBookmark
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dotx, err := database.DotxQueryEmbedFS(mozilla.EmbeddedSqlQueries, mozilla.MozBookmarkQueryFile)
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if err != nil {
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return nil, err
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}
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err = dotx.Select(ff.places.Handle, &bookmarks, mozilla.MozBookmarkQuery)
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// load bookmarks and tags into the node tree
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// then attach them to their assigned folder hierarchy
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for _, bkEntry := range bookmarks {
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// Create/Update URL node and apply tag node
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ok, urlNode := ff.addUrlNode(bkEntry.Url, bkEntry.Title, bkEntry.PlDesc)
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if !ok {
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log.Infof("url <%s> already in url index", bkEntry.Url)
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}
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/*
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* Iterate through bookmark tags and synchronize new tags with
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* the node tree.
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*/
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for _, tagName := range strings.Split(bkEntry.Tags, ",") {
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if tagName == "" { continue }
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seen, tagNode := ff.addTagNode(tagName)
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if !seen {
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log.Infof("tag <%s> already in tag map", tagNode.Name)
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}
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// Add tag name to urlnode tags
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urlNode.Tags = utils.Extends(urlNode.Tags, tagNode.Name)
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// Add URL node as child of Tag node
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// Parent will be a folder or nothing?
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tree.AddChild(ff.tagMap[tagNode.Name], urlNode)
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ff.CurrentUrlCount++
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}
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// Link this URL node to its corresponding folder node if it exists.
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//TODO: add all parent folders in the tags list of this url node
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folderNode, fOk := ff.folderMap[bkEntry.ParentId]
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if fOk {
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tree.AddChild(folderNode, urlNode)
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}
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}
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return bookmarks, err
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}
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//WIP
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type Firefox struct {
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*FirefoxConfig
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// sqlite con to places.sqlite
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places *database.DB
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// All elements stored in URLIndex
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URLIndexList []string
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// Map from moz_bookmarks tag ids to a tree node
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// tagMap is used as a quick lookup table into the node tree
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tagMap map[string]*tree.Node
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// map from moz_bookmarks folder id to a folder node in the tree
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folderMap map[sqlid]*tree.Node
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// internal folder map used for scanning
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folderScanMap map[sqlid]*MozFolder
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lastRunTime time.Time
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}
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func init() {
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browsers.RegisterBrowser(Firefox{FirefoxConfig: FFConfig})
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//TIP: cmd.RegisterModCommand(BrowserName, &cli.Command{
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// Name: "test",
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// })
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// cmd.RegisterModCommand(BrowserName, &cli.Command{
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// Name: "test2",
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// })
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}
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func NewFirefox() *Firefox {
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return &Firefox{
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FirefoxConfig: FFConfig,
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places: &database.DB{},
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URLIndexList: []string{},
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tagMap: map[string]*tree.Node{},
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folderMap: map[sqlid]*tree.Node{},
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}
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}
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func (f Firefox) ModInfo() browsers.ModInfo {
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return browsers.ModInfo{
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ID: browsers.ModID(f.Name),
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//HACK: duplicate instance with init().RegisterBrowser ??
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New: func() browsers.Module {
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return NewFirefox()
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},
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}
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}
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// TEST:
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// Implements browser.Initializer interface
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func (f *Firefox) Init() error {
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log.Infof("initializing <%s>", f.Name)
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bookmarkPath, err := f.BookmarkPath()
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if err != nil {
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return err
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}
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log.Debugf("bookmark path is: %s", bookmarkPath)
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err = f.initPlacesCopy()
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if err != nil {
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return err
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}
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// Setup watcher
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expandedBaseDir, err := filepath.EvalSymlinks(f.BkDir)
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if err != nil {
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return err
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}
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w := &watch.Watch{
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Path: expandedBaseDir,
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EventTypes: []fsnotify.Op{fsnotify.Write},
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EventNames: []string{filepath.Join(expandedBaseDir, "places.sqlite-wal")},
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ResetWatch: false,
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}
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browsers.SetupWatchersWithReducer(f.BrowserConfig, browsers.ReducerChanLen, w)
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/*
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*Run reducer to avoid duplicate jobs when a batch of events is received
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*/
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// TODO!: make a new copy of places for every new event change
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// Add a reducer to the watcher
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go watch.ReduceEvents(WatchMinJobInterval, f)
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return nil
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}
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func (f *Firefox) Watcher() *watch.WatchDescriptor {
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return f.BrowserConfig.Watcher()
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}
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func (f Firefox) Config() *browsers.BrowserConfig {
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return f.BrowserConfig
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}
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// Firefox custom logic for preloading the bookmarks when the browser module
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// starts. Implements browsers.Loader interface.
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func (f *Firefox) Load() error {
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// load all bookmarks
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start := time.Now()
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f.scanBookmarks()
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f.LastFullTreeParseTime = time.Since(start)
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f.lastRunTime = time.Now().UTC()
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log.Debugf("parsed %d bookmarks and %d nodes in %s",
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f.CurrentUrlCount,
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f.CurrentNodeCount,
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f.LastFullTreeParseTime)
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f.Reset()
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// Sync the URLIndex to the buffer
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// We do not use the NodeTree here as firefox tags are represented
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// as a flat tree which is not efficient, we use the go hashmap instead
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database.SyncURLIndexToBuffer(f.URLIndexList, f.URLIndex, f.BufferDB)
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// Handle empty cache
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if empty, err := database.Cache.DB.IsEmpty(); empty {
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if err != nil {
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return err
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}
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log.Info("cache empty: loading buffer to Cachedb")
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f.BufferDB.CopyTo(database.Cache.DB)
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log.Debugf("syncing <%s> to disk", database.Cache.DB.Name)
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} else {
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f.BufferDB.SyncTo(database.Cache.DB)
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}
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database.Cache.DB.SyncToDisk(database.GetDBFullPath())
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//DEBUG:
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// tree.PrintTree(f.NodeTree)
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// Close the copy places.sqlite
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err := f.places.Close()
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return err
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}
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// Implement browsers.Runner interface
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func (f *Firefox) Run() {
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startRun := time.Now()
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err := f.initPlacesCopy()
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if err != nil {
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log.Error(err)
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}
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log.Debugf("Checking changes since <%d> %s",
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f.lastRunTime.UTC().UnixNano()/1000,
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f.lastRunTime.Local().Format("Mon Jan 2 15:04:05 MST 2006"))
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queryArgs := map[string]interface{}{
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"not_root_tags": []int{mozilla.RootID, mozilla.TagsID},
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"last_runtime_utc": f.lastRunTime.UTC().UnixNano() / 1000,
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}
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query, args, err := sqlx.Named(
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mozilla.QBookmarksChanged,
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queryArgs,
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)
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if err != nil {
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log.Error(err)
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}
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query, args, err = sqlx.In(query, args...)
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if err != nil {
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log.Error(err)
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}
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query = f.places.Handle.Rebind(query)
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utils.PrettyPrint(query)
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rows, err := f.places.Handle.Query(query, args...)
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if err != nil {
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log.Error(err)
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}
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// Found new results in places db since last time we had changes
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// database.DebugPrintRows(rows) // WARN: This will disable reading rows
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// TEST: implement this in a func and unit test it
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// NOTE: this looks like a lot of code reuse in fetchUrlChanges()
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for rows.Next() {
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// next := rows.Next()
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// log.Debug("next rows is: ", next)
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// if !next {
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// break
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// }
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changedURLS := make([]string, 0)
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log.Debugf("Found changes since: %s",
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f.lastRunTime.Local().Format("Mon Jan 2 15:04:05 MST 2006"))
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// extract bookmarks to this map
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bookmarks := make(map[sqlid]*FFBookmark)
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// record new places to this map
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places := make(map[sqlid]*FFPlace)
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// Fetch all changes into bookmarks and places maps
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f.fetchUrlChanges(rows, bookmarks, places)
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// utils.PrettyPrint(places)
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// For each url
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for urlId, place := range places {
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var urlNode *tree.Node
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changedURLS = utils.Extends(changedURLS, place.URL)
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ok, urlNode := f.addUrlNode(place.URL, place.Title.String, place.Description.String)
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if !ok {
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log.Infof("url <%s> already in url index", place.URL)
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}
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// First get any new bookmarks
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for bkId, bk := range bookmarks {
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// if bookmark type is folder or tag
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if bk.btype == BkTypeTagFolder &&
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// Ignore root directories
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// NOTE: TagsID change time shows last time bookmark tags
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// whre changed ?
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bkId != mozilla.TagsID {
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log.Debugf("adding tag node %s", bk.title)
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ok, tagNode := f.addTagNode(bk.title)
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if !ok {
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log.Infof("tag <%s> already in tag map", tagNode.Name)
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}
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}
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}
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// link tags(moz_bookmark) to urls (moz_places)
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for _, bk := range bookmarks {
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// This effectively applies the tag to the URL
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// The tag link should have a parent over 6 and fk->urlId
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log.Debugf("Bookmark parent %d", bk.parent)
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if bk.fk == urlId &&
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bk.parent > mozilla.MobileID {
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// The tag node should have already been created
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// tagNode, tagNodeExists := f.tagMap[bk.parent]
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tagNode, tagNodeExists := f.tagMap["bk.parent"]
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if tagNodeExists && urlNode != nil {
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log.Debugf("URL has tag %s", tagNode.Name)
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urlNode.Tags = utils.Extends(urlNode.Tags, tagNode.Name)
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tree.AddChild(f.tagMap["bk.parent"], urlNode)
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//TEST: remove after testing this code section
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// urlNode.Parent = f.tagMap[bk.parent]
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// tree.Insert(f.tagMap[bk.parent].Children, urlNode)
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f.CurrentUrlCount++
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}
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}
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}
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}
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database.SyncURLIndexToBuffer(changedURLS, f.URLIndex, f.BufferDB)
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f.BufferDB.SyncTo(database.Cache.DB)
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database.Cache.DB.SyncToDisk(database.GetDBFullPath())
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}
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err = rows.Close()
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if err != nil {
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log.Error(err)
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}
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f.LastWatchRunTime = time.Since(startRun)
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// log.Debugf("execution time %s", time.Since(startRun))
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// tree.PrintTree(f.NodeTree) // debugging
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err = f.places.Close()
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if err != nil {
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log.Error(err)
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}
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f.lastRunTime = time.Now().UTC()
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}
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// Implement browsers.Shutdowner
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func (f *Firefox) Shutdown() {
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log.Debugf("shutting down ... ")
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if f.places != nil {
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err := f.places.Close()
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if err != nil {
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log.Critical(err)
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}
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}
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}
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func (f *Firefox) copyPlacesToTmp() error {
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err := utils.CopyFilesToTmpFolder(path.Join(f.BkDir, f.BkFile+"*"))
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if err != nil {
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return err
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}
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return nil
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}
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func (ff *Firefox) getPathToPlacesCopy() string {
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return path.Join(utils.TMPDIR, ff.BkFile)
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}
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// TEST:
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// HACK: addUrl and addTag share a lot of code, find a way to reuse shared code
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// and only pass extra details about tag/url along in some data structure
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// PROBLEM: tag nodes use IDs and URL nodes use URL as hashes
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func (f *Firefox) addUrlNode(url, title, desc string) (bool, *tree.Node) {
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var urlNode *tree.Node
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iUrlNode, exists := f.URLIndex.Get(url)
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if !exists {
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urlNode := &tree.Node{
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Name: title,
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Type: tree.URLNode,
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URL: url,
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Desc: desc,
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}
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log.Debugf("inserting url %s in url index", url)
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f.URLIndex.Insert(url, urlNode)
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f.URLIndexList = append(f.URLIndexList, url)
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f.CurrentNodeCount++
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return true, urlNode
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} else {
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urlNode = iUrlNode.(*tree.Node)
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}
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return false, urlNode
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}
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// adds a new tagNode if it is not yet in the tagMap
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// returns true if tag added or false if already existing
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// returns the created tagNode
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func (ff *Firefox) addTagNode(tagName string) (bool, *tree.Node) {
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// Check if "tags" branch exists or create it
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var branchOk bool
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var tagsBranch *tree.Node
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for _, c := range ff.NodeTree.Children {
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if c.Name == TagsBranchName {
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branchOk = true
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tagsBranch = c
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}
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}
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if !branchOk {
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tagsBranch = &tree.Node{
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Name: TagsBranchName,
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}
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tree.AddChild(ff.NodeTree, tagsBranch)
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}
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// node, exists :=
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node, exists := ff.tagMap[tagName]
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if exists {
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return false, node
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}
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tagNode := &tree.Node{
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Name: tagName,
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Type: tree.TagNode,
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Parent: ff.NodeTree, // root node
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}
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tree.AddChild(tagsBranch, tagNode)
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ff.tagMap[tagName] = tagNode
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ff.CurrentNodeCount++
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return true, tagNode
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}
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|
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// add a folder node to the parsed node tree under the specified folder parent
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// returns true if a new folder is created and false if folder already exists
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//TEST: add folder node tests
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func (ff *Firefox) addFolderNode(folder MozFolder) (bool, *tree.Node){
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|
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// use hashmap.RBTree to keep an index of scanned folders pointing
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// to their corresponding nodes in the tree
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folderNode, seen := ff.folderMap[folder.Id]
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|
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if seen {
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return false, folderNode
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}
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|
|
// TODO: do not forget to attach children back to their parents after
|
|
// finishing to scan all folders.
|
|
|
|
|
|
folderNode = &tree.Node{
|
|
// Name: folder.Title,
|
|
Type: tree.FolderNode,
|
|
}
|
|
|
|
// keeping the same folder structure as Firefox
|
|
|
|
// If this folders' is a Firefox root folder use the appropriate title
|
|
// then add it to the root node
|
|
if utils.Inlist([]int{2,3,5,6}, int(folder.Id)) {
|
|
folderNode.Name = mozilla.RootFolders[folder.Id]
|
|
tree.AddChild(ff.NodeTree, folderNode)
|
|
} else {
|
|
folderNode.Name = folder.Title
|
|
}
|
|
|
|
// check if folder's parent is already in the tree
|
|
fParent, ok := ff.folderMap[folder.Parent]
|
|
|
|
// if we already saw folder's parent add it underneath
|
|
if ok {
|
|
tree.AddChild(fParent, folderNode)
|
|
|
|
// if we never saw this folders' parent
|
|
} else if folder.Parent != 1 { // recursively build the parent of this folder
|
|
_, newParentNode := ff.addFolderNode(*ff.folderScanMap[folder.Parent])
|
|
tree.AddChild(newParentNode, folderNode)
|
|
}
|
|
|
|
// Store a pointer to this folder
|
|
ff.folderMap[folder.Id] = folderNode
|
|
ff.CurrentNodeCount++
|
|
|
|
return true, folderNode
|
|
}
|
|
|
|
|
|
//TODO: retire this function after scanBookmarks() is implemented
|
|
// load all bookmarks from `places.sqlite` and store them in BaseBrowser.NodeTree
|
|
// this method is used the first time gomark is started or to extract bookmarks
|
|
// using a command
|
|
func loadBookmarks(f *Firefox) {
|
|
log.Debugf("root tree children len is %d", len(f.NodeTree.Children))
|
|
//QGetTags := "SELECT id,title from moz_bookmarks WHERE parent = %d"
|
|
//
|
|
|
|
rows, err := f.places.Handle.Query(mozilla.QgetBookmarks, mozilla.TagsID)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
// Locked database is critical
|
|
if e, ok := err.(sqlite3.Error); ok {
|
|
if e.Code == sqlite3.ErrBusy {
|
|
log.Critical(err)
|
|
f.Shutdown()
|
|
return
|
|
}
|
|
}
|
|
if err != nil {
|
|
log.Errorf("%s: %s", f.places.Name, err)
|
|
return
|
|
}
|
|
|
|
// Rebuilding node tree
|
|
// Note: the node tree is built only for compatilibity with tree based
|
|
// bookmark parsing and might later be useful for debug/UI features.
|
|
// For efficiency reading after the initial Load() from
|
|
// places.sqlite should be done using a loop instad of tree traversal.
|
|
|
|
/*
|
|
*This pass is used only for fetching bookmarks from firefox.
|
|
*Checking against the URLIndex should not be done here
|
|
*/
|
|
for rows.Next() {
|
|
var url, title, tagTitle, desc string
|
|
var tagId sqlid
|
|
|
|
err = rows.Scan(&url, &title, &desc, &tagId, &tagTitle)
|
|
// log.Debugf("%s|%s|%s|%d|%s", url, title, desc, tagId, tagTitle)
|
|
if err != nil {
|
|
log.Error(err)
|
|
}
|
|
|
|
/*
|
|
* If this is the first time we see this tag
|
|
* add it to the tagMap and create its node
|
|
*/
|
|
ok, tagNode := f.addTagNode(tagTitle)
|
|
if !ok {
|
|
log.Infof("tag <%s> already in tag map", tagNode.Name)
|
|
}
|
|
|
|
// Add the url to the tag
|
|
// NOTE: this call is responsible for updating URLIndexList
|
|
ok, urlNode := f.addUrlNode(url, title, desc)
|
|
if !ok {
|
|
log.Infof("url <%s> already in url index", url)
|
|
}
|
|
|
|
// Add tag name to urlnode tags
|
|
urlNode.Tags = append(urlNode.Tags, tagNode.Name)
|
|
|
|
// Set tag as parent to urlnode
|
|
tree.AddChild(f.tagMap[tagTitle], urlNode)
|
|
|
|
f.CurrentUrlCount++
|
|
}
|
|
|
|
log.Debugf("root tree children len is %d", len(f.NodeTree.Children))
|
|
}
|
|
|
|
// fetchUrlChanges method
|
|
// scan rows from a firefox `places.sqlite` db and extract all bookmarks and
|
|
// places (moz_bookmarks, moz_places tables) that changed/are new since the browser.lastRunTime
|
|
// using the QBookmarksChanged query
|
|
func (f *Firefox) fetchUrlChanges(rows *sql.Rows,
|
|
bookmarks map[sqlid]*FFBookmark,
|
|
places map[sqlid]*FFPlace,
|
|
) {
|
|
bk := &FFBookmark{}
|
|
|
|
// Get the URL that changed
|
|
err := rows.Scan(&bk.id, &bk.btype, &bk.fk, &bk.parent, &bk.title)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
// database.DebugPrintRow(rows)
|
|
|
|
// We found URL change, urls are specified by
|
|
// type == 1
|
|
// fk -> id of url in moz_places
|
|
// parent == tag id
|
|
//
|
|
// Each tag on a url generates 2 or 3 entries in moz_bookmarks
|
|
// 1. If not existing, a (type==2) entry for the tag itself
|
|
// 2. A (type==1) entry for the bookmakred url with (fk -> moz_places.id)
|
|
// 3. A (type==1) (fk-> moz_places.id) (parent == idOf(tag))
|
|
|
|
if bk.btype == BkTypeURL {
|
|
var place FFPlace
|
|
|
|
// Use unsafe db to ignore non existant columns in
|
|
// dest field
|
|
udb := f.places.Handle.Unsafe()
|
|
err := udb.QueryRowx(mozilla.QGetBookmarkPlace, bk.fk).StructScan(&place)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
log.Debugf("Changed URL: %s", place.URL)
|
|
log.Debugf("%v", place)
|
|
|
|
// put url in the places map
|
|
places[place.ID] = &place
|
|
}
|
|
|
|
// This is the tag link
|
|
if bk.btype == BkTypeURL &&
|
|
// ignore original tags/folder from mozilla
|
|
bk.parent > mozilla.MobileID {
|
|
|
|
bookmarks[bk.id] = bk
|
|
}
|
|
|
|
// Tags are specified by:
|
|
// type == 2
|
|
// parent == (Id of root )
|
|
|
|
if bk.btype == BkTypeTagFolder {
|
|
bookmarks[bk.id] = bk
|
|
}
|
|
|
|
for rows.Next() {
|
|
f.fetchUrlChanges(rows, bookmarks, places)
|
|
}
|
|
log.Debugf("fetching changes done !")
|
|
}
|
|
|
|
// Copies places.sqlite to a tmp dir to read a VFS lock sqlite db
|
|
func (f *Firefox) initPlacesCopy() error {
|
|
err := f.copyPlacesToTmp()
|
|
if err != nil {
|
|
return fmt.Errorf("could not copy places.sqlite to tmp folder: %s",
|
|
err)
|
|
}
|
|
|
|
opts := FFConfig.PlacesDSN
|
|
|
|
f.places, err = database.NewDB("places",
|
|
// using the copied places file instead of the original to avoid
|
|
// sqlite vfs lock errors
|
|
f.getPathToPlacesCopy(),
|
|
database.DBTypeFileDSN, opts).Init()
|
|
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|