Add Nextcloud integration tools
- CLI tools: nextcloud-client, nextcloud-contacts, nextcloud-calendar, nextcloud-mail - Build script with compile-time credentials - Skills for all four tools - Email tool supports IMAP/SMTP with attachment download
This commit is contained in:
WLTBAgent
436
tools/go/nextcloud-contacts/main.go
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436
tools/go/nextcloud-contacts/main.go
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package main
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import (
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"encoding/xml"
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"flag"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"os"
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"strings"
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"time"
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)
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// Build-time configuration (set via ldflags at compile time)
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var (
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BuildServerURL string
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BuildUsername string
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BuildToken string
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)
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// Config holds Nextcloud connection configuration
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type Config struct {
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URL string
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User string
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Token string
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CardDAV string
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}
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// Client is a Nextcloud CardDAV client
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type Client struct {
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Config Config
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HTTPClient *http.Client
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}
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// MultiStatus represents WebDAV multistatus response
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type MultiStatus struct {
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XMLName xml.Name `xml:"multistatus"`
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Responses []Response `xml:"response"`
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}
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// Response represents a single WebDAV response
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type Response struct {
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Href string `xml:"href"`
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PropStats []PropStat `xml:"propstat"`
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}
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// PropStat represents a WebDAV propstat element
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type PropStat struct {
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Prop Prop `xml:"prop"`
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Status string `xml:"status"`
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}
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// Prop represents WebDAV properties
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type Prop struct {
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DisplayName string `xml:"displayname"`
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GetETag string `xml:"getetag"`
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}
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// AddressBook represents a CardDAV address book
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type AddressBook struct {
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Href string
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DisplayName string
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ETag string
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}
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// Contact represents a vCard contact
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type Contact struct {
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UID string
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FormattedName string
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Email string
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Phone string
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Company string
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Title string
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VCard string // Raw vCard content
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}
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func main() {
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// Parse flags (with build-time defaults)
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serverURL := flag.String("url", BuildServerURL, "Nextcloud server URL (e.g., https://cloud.example.com)")
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username := flag.String("user", BuildUsername, "Nextcloud username")
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token := flag.String("token", BuildToken, "Nextcloud app token")
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operation := flag.String("op", "list-books", "Operation: list-books, list-contacts, get-contact, create-contact, delete-contact")
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bookName := flag.String("book", "contacts", "Address book name (default: contacts)")
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contactUID := flag.String("uid", "", "Contact UID for get/delete-contact operation")
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vcardPath := flag.String("vcard", "", "Path to vCard file for create-contact operation")
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name := flag.String("name", "", "Contact name (for create-contact)")
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email := flag.String("email", "", "Contact email (for create-contact)")
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phone := flag.String("phone", "", "Contact phone (for create-contact)")
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flag.Parse()
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// Use environment variables as fallback if not set at build time or via flags
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if *serverURL == "" {
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*serverURL = os.Getenv("NEXTCLOUD_URL")
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}
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if *username == "" {
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*username = os.Getenv("NEXTCLOUD_USER")
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}
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if *token == "" {
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*token = os.Getenv("NEXTCLOUD_TOKEN")
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}
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if serverURL == nil || username == nil || token == nil || *serverURL == "" || *username == "" || *token == "" {
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fmt.Println("Error: URL, user, and token are required (set via ldflags, flags, or env vars)")
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os.Exit(1)
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}
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// Build config
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encodedUsername := url.PathEscape(*username)
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config := Config{
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URL: *serverURL,
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User: *username,
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Token: *token,
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CardDAV: fmt.Sprintf("%s/remote.php/dav/addressbooks/users/%s", strings.TrimSuffix(*serverURL, "/"), encodedUsername),
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}
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// Create client
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client := &Client{
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Config: config,
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HTTPClient: &http.Client{},
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}
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var err error
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switch *operation {
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case "list-books":
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err = client.listAddressBooks()
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case "list-contacts":
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err = client.listContacts(*bookName)
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case "get-contact":
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if *contactUID == "" {
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fmt.Println("Error: --uid is required for get-contact operation")
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os.Exit(1)
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}
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err = client.getContact(*bookName, *contactUID)
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case "create-contact":
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contact := &Contact{
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FormattedName: *name,
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Email: *email,
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Phone: *phone,
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}
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if *vcardPath != "" {
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vcardContent, readErr := os.ReadFile(*vcardPath)
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if readErr != nil {
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fmt.Printf("Error reading vCard file: %v\n", readErr)
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os.Exit(1)
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}
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contact.VCard = string(vcardContent)
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}
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err = client.createContact(*bookName, contact)
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case "delete-contact":
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if *contactUID == "" {
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fmt.Println("Error: --uid is required for delete-contact operation")
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os.Exit(1)
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}
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err = client.deleteContact(*bookName, *contactUID)
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default:
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fmt.Printf("Unknown operation: %s\n", *operation)
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os.Exit(1)
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}
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if err != nil {
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fmt.Printf("Error: %v\n", err)
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os.Exit(1)
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}
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}
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func (c *Client) listAddressBooks() error {
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// PROPFIND body
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body := fmt.Sprintf(`<?xml version="1.0" encoding="UTF-8"?>
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<d:propfind xmlns:d="DAV:">
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<d:prop>
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<d:displayname />
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<d:getetag />
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</d:prop>
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</d:propfind>`)
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req, err := http.NewRequest("PROPFIND", c.Config.CardDAV+"/", strings.NewReader(body))
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if err != nil {
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return fmt.Errorf("request failed: %v", err)
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}
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req.SetBasicAuth(c.Config.User, c.Config.Token)
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req.Header.Set("Content-Type", "application/xml; charset=utf-8")
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req.Header.Set("Depth", "1")
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resp, err := c.HTTPClient.Do(req)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode != 207 {
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return fmt.Errorf("unexpected status: %d (expected 207 Multi-Status)", resp.StatusCode)
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}
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var multiStatus MultiStatus
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decoder := xml.NewDecoder(resp.Body)
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if err := decoder.Decode(&multiStatus); err != nil {
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return fmt.Errorf("xml decode failed: %v", err)
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}
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// Print address books
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fmt.Println("Address Books:")
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fmt.Println("--------------")
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for _, response := range multiStatus.Responses {
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relPath := strings.TrimPrefix(response.Href, c.Config.CardDAV)
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if relPath == "" || !strings.HasSuffix(relPath, "/") {
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continue
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}
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// Skip root directory (no additional path after CardDAV base)
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if relPath == "/" || strings.TrimSuffix(relPath, "/") == "" {
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continue
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}
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// Only show actual address books (have a displayname property)
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var mergedProp Prop
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hasDisplayName := false
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for _, propStat := range response.PropStats {
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if strings.Contains(propStat.Status, "200") {
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if propStat.Prop.DisplayName != "" {
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mergedProp.DisplayName = propStat.Prop.DisplayName
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hasDisplayName = true
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}
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if propStat.Prop.GetETag != "" {
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mergedProp.GetETag = propStat.Prop.GetETag
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}
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}
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}
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if !hasDisplayName {
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continue
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}
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bookName := strings.TrimSuffix(relPath, "/")
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bookName = strings.TrimPrefix(bookName, "/")
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fmt.Printf("Name: %s\n", mergedProp.DisplayName)
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fmt.Printf("Path: %s\n", bookName)
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fmt.Printf("ETag: %s\n", mergedProp.GetETag)
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fmt.Println()
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}
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return nil
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}
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func (c *Client) listContacts(bookName string) error {
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bookPath := fmt.Sprintf("%s/%s/", c.Config.CardDAV, bookName)
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// PROPFIND body
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body := fmt.Sprintf(`<?xml version="1.0" encoding="UTF-8"?>
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<d:propfind xmlns:d="DAV:">
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<d:prop>
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<d:getetag />
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</d:prop>
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</d:propfind>`)
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req, err := http.NewRequest("PROPFIND", bookPath, strings.NewReader(body))
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if err != nil {
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return fmt.Errorf("request failed: %v", err)
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}
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req.SetBasicAuth(c.Config.User, c.Config.Token)
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req.Header.Set("Content-Type", "application/xml; charset=utf-8")
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req.Header.Set("Depth", "1")
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resp, err := c.HTTPClient.Do(req)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode != 207 {
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return fmt.Errorf("unexpected status: %d (expected 207 Multi-Status)", resp.StatusCode)
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}
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var multiStatus MultiStatus
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decoder := xml.NewDecoder(resp.Body)
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if err := decoder.Decode(&multiStatus); err != nil {
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return fmt.Errorf("xml decode failed: %v", err)
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}
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// Print contacts
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fmt.Printf("Contacts in '%s':\n", bookName)
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fmt.Println("--------------")
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contactCount := 0
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for _, response := range multiStatus.Responses {
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relPath := strings.TrimPrefix(response.Href, bookPath)
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if relPath == "" || strings.HasSuffix(relPath, "/") {
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continue
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}
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contactCount++
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var etag string
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for _, propStat := range response.PropStats {
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if strings.Contains(propStat.Status, "200") {
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etag = propStat.Prop.GetETag
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}
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}
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// Extract UID from filename (just the filename part, not full path)
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filename := relPath
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if idx := strings.LastIndex(relPath, "/"); idx != -1 {
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filename = relPath[idx+1:]
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}
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contactUID := strings.TrimSuffix(filename, ".vcf")
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fmt.Printf("UID: %s\n", contactUID)
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fmt.Printf("ETag: %s\n", etag)
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fmt.Println()
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}
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if contactCount == 0 {
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fmt.Println("(No contacts found)")
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}
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return nil
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}
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func (c *Client) getContact(bookName, contactUID string) error {
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contactPath := fmt.Sprintf("%s/%s/%s.vcf", c.Config.CardDAV, bookName, contactUID)
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req, err := http.NewRequest("GET", contactPath, nil)
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if err != nil {
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return fmt.Errorf("request failed: %v", err)
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}
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req.SetBasicAuth(c.Config.User, c.Config.Token)
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req.Header.Set("Accept", "text/vcard; charset=utf-8")
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resp, err := c.HTTPClient.Do(req)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode != 200 {
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return fmt.Errorf("get contact failed with status: %d", resp.StatusCode)
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}
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content, err := io.ReadAll(resp.Body)
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if err != nil {
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return fmt.Errorf("failed to read response: %v", err)
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}
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fmt.Printf("Contact: %s\n", contactUID)
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fmt.Println("--------------")
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fmt.Println(string(content))
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return nil
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}
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func (c *Client) createContact(bookName string, contact *Contact) error {
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bookPath := fmt.Sprintf("%s/%s/", c.Config.CardDAV, bookName)
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// Generate vCard if not provided
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vcardContent := contact.VCard
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if vcardContent == "" {
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if contact.FormattedName == "" {
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return fmt.Errorf("contact name is required")
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}
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// Generate a simple vCard
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uid := fmt.Sprintf("%d", time.Now().UnixNano())
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vcardContent = fmt.Sprintf(`BEGIN:VCARD
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VERSION:3.0
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UID:%s
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FN:%s`, uid, contact.FormattedName)
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if contact.Email != "" {
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vcardContent += fmt.Sprintf("\nEMAIL;TYPE=INTERNET:%s", contact.Email)
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}
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if contact.Phone != "" {
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vcardContent += fmt.Sprintf("\nTEL;TYPE=VOICE:%s", contact.Phone)
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}
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if contact.Company != "" {
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vcardContent += fmt.Sprintf("\nORG:%s", contact.Company)
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}
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if contact.Title != "" {
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vcardContent += fmt.Sprintf("\nTITLE:%s", contact.Title)
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}
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vcardContent += "\nEND:VCARD"
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}
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contactPath := fmt.Sprintf("%s/%s.vcf", bookPath, fmt.Sprintf("%d", time.Now().UnixNano()))
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req, err := http.NewRequest("PUT", contactPath, strings.NewReader(vcardContent))
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if err != nil {
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return fmt.Errorf("request failed: %v", err)
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}
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req.SetBasicAuth(c.Config.User, c.Config.Token)
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req.Header.Set("Content-Type", "text/vcard; charset=utf-8")
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resp, err := c.HTTPClient.Do(req)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode != 201 && resp.StatusCode != 204 {
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return fmt.Errorf("create contact failed with status: %d", resp.StatusCode)
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}
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fmt.Printf("Contact created successfully\n")
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return nil
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}
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func (c *Client) deleteContact(bookName, contactUID string) error {
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contactPath := fmt.Sprintf("%s/%s/%s.vcf", c.Config.CardDAV, bookName, contactUID)
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req, err := http.NewRequest("DELETE", contactPath, nil)
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if err != nil {
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return fmt.Errorf("request failed: %v", err)
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}
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req.SetBasicAuth(c.Config.User, c.Config.Token)
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resp, err := c.HTTPClient.Do(req)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode != 204 {
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return fmt.Errorf("delete contact failed with status: %d", resp.StatusCode)
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}
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fmt.Printf("Contact deleted: %s\n", contactUID)
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return nil
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}
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