From d7cc883cbb4eff76e8e4a8970b123f45dc2eaa31 Mon Sep 17 00:00:00 2001
From: Andreas Schneider <aksdb@gmx.de>
Date: Sun, 1 Apr 2018 20:02:53 +0200
Subject: [PATCH] * Fix URL for CalDAV if necessary * Implemented upload and
 delete of CalDAV items

---
 src/calanonsync/caldav.go   | 50 +++++++++++++++++++++++++++++++++++++
 src/calanonsync/settings.go |  6 +++++
 2 files changed, 56 insertions(+)

diff --git a/src/calanonsync/caldav.go b/src/calanonsync/caldav.go
index b44afd9..5253384 100644
--- a/src/calanonsync/caldav.go
+++ b/src/calanonsync/caldav.go
@@ -4,9 +4,11 @@ import (
 	"bufio"
 	"encoding/xml"
 	"errors"
+	"fmt"
 	"io"
 	"log"
 	"net/http"
+	"net/url"
 	"strings"
 	"text/template"
 	"time"
@@ -174,6 +176,54 @@ func (c *CalDAV) GetEvents() ([]CalDAVItem, error) {
 	return result, nil
 }
 
+func (c CalDAV) UploadItem(item CalDAVItem) error {
+	itemURL, _ := url.Parse(item.HRef)
+	base, _ := url.Parse(c.URL)
+
+	// Build the absolute URL for the item
+	itemURL = base.ResolveReference(itemURL)
+
+	req, err := http.NewRequest("PUT", itemURL.String(), strings.NewReader(item.ICal.String()))
+	if err != nil {
+		return err
+	}
+	req.SetBasicAuth(c.Username, c.Password)
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return err
+	}
+
+	if resp.StatusCode >= 300 {
+		return fmt.Errorf("Unexpected result while uploading %s: %d", itemURL.String(), resp.StatusCode)
+	}
+
+	return nil
+}
+
+func (c CalDAV) DeleteItem(item CalDAVItem) error {
+	itemURL, _ := url.Parse(item.HRef)
+	base, _ := url.Parse(c.URL)
+
+	// Build the absolute URL for the item
+	itemURL = base.ResolveReference(itemURL)
+
+	req, err := http.NewRequest("DELETE", itemURL.String(), nil)
+	if err != nil {
+		return err
+	}
+	req.SetBasicAuth(c.Username, c.Password)
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return err
+	}
+
+	if resp.StatusCode >= 300 {
+		return fmt.Errorf("Unexpected result while deleting %s: %d", itemURL.String(), resp.StatusCode)
+	}
+
+	return nil
+}
+
 type MultiStatus struct {
 	Response []PropFindResponse `xml:"response"`
 }
diff --git a/src/calanonsync/settings.go b/src/calanonsync/settings.go
index 19734c8..4c87579 100644
--- a/src/calanonsync/settings.go
+++ b/src/calanonsync/settings.go
@@ -3,6 +3,7 @@ package main
 import (
 	"encoding/json"
 	"os"
+	"strings"
 )
 
 type ServerSettings struct {
@@ -29,5 +30,10 @@ func LoadSettings() Settings {
 	if err != nil {
 		panic(err)
 	}
+
+	if settings.CalDAV.URL != "" && strings.HasSuffix(settings.CalDAV.URL, "/") {
+		settings.CalDAV.URL += "/"
+	}
+
 	return settings
 }