96 lines
2.3 KiB
Go
96 lines
2.3 KiB
Go
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package maildir
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import (
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"errors"
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"os"
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"path/filepath"
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"sort"
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"strings"
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"github.com/amalfra/maildir/lib"
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)
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// Maildir implements maildir format and it's operations
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type Maildir struct {
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path string
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}
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// NewMaildir will create new maildir at specified path
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func NewMaildir(path string) *Maildir {
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maildir := new(Maildir)
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maildir.path = path
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_, dCur := os.Stat(path + "/cur")
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_, dTmp := os.Stat(path + "/tmp")
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_, dNew := os.Stat(path + "/new")
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if os.IsNotExist(dCur) || os.IsNotExist(dTmp) || os.IsNotExist(dNew) {
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maildir.createDirectories()
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}
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return maildir
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}
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// createDirectories will the sub directories required by maildir
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func (m *Maildir) createDirectories() {
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for _, subDir := range lib.Subdirs {
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os.MkdirAll(filepath.Join(m.path, subDir), os.ModePerm)
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}
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}
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// Add writes data out as a new message. Returns Message instance
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func (m *Maildir) Add(data string) (*lib.Message, error) {
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msg, err := lib.NewMessage(m.path)
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if err != nil {
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return nil, errors.New("failed to create message")
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}
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err = msg.Write(data)
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if err != nil {
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return nil, errors.New("failed to write message")
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}
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return msg, nil
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}
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// Get returns a message object for key
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func (m *Maildir) Get(key string) *lib.Message {
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return lib.LoadMessage(m.path, key)
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}
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// List returns an array of messages from new or cur directory, sorted by key
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func (m *Maildir) List(dir string) (map[string]*lib.Message, error) {
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if !lib.StringInSlice(dir, lib.Subdirs) {
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return nil, errors.New("dir must be :new, :cur, or :tmp")
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}
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keys, err := m.getDirListing(dir)
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if err != nil {
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return nil, errors.New("failed to get directory listing")
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}
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sort.Sort(sort.StringSlice(keys))
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// map keys to message objects
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keyMap := make(map[string]*lib.Message)
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for _, key := range keys {
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keyMap[key] = m.Get(key)
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}
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return keyMap, nil
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}
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// getDirListing returns an array of keys in dir
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func (m *Maildir) getDirListing(dir string) ([]string, error) {
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filter := "*"
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searchPath := filepath.Join(m.path, dir, filter)
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filePaths, err := filepath.Glob(searchPath)
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// remove maildir path so that only key remains
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for i, filePath := range filePaths {
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filePaths[i] = strings.TrimPrefix(filePath, m.path)
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}
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return filePaths, err
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}
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// Delete a message by key
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func (m *Maildir) Delete(key string) error {
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return m.Get(key).Destroy()
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}
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