vikunja-api/pkg/caldav/parsing.go
2021-07-11 15:03:50 +02:00

134 lines
3.4 KiB
Go

// Vikunja is a to-do list application to facilitate your life.
// Copyright 2018-2021 Vikunja and contributors. All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public Licensee as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public Licensee for more details.
//
// You should have received a copy of the GNU Affero General Public Licensee
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package caldav
import (
"strconv"
"strings"
"time"
"code.vikunja.io/api/pkg/log"
"code.vikunja.io/api/pkg/models"
"github.com/laurent22/ical-go"
)
func GetCaldavTodosForTasks(list *models.List, listTasks []*models.Task) string {
// Make caldav todos from Vikunja todos
var caldavtodos []*Todo
for _, t := range listTasks {
duration := t.EndDate.Sub(t.StartDate)
caldavtodos = append(caldavtodos, &Todo{
Timestamp: t.Updated,
UID: t.UID,
Summary: t.Title,
Description: t.Description,
Completed: t.DoneAt,
// Organizer: &t.CreatedBy, // Disabled until we figure out how this works
Priority: t.Priority,
Start: t.StartDate,
End: t.EndDate,
Created: t.Created,
Updated: t.Updated,
DueDate: t.DueDate,
Duration: duration,
})
}
caldavConfig := &Config{
Name: list.Title,
ProdID: "Vikunja Todo App",
}
return ParseTodos(caldavConfig, caldavtodos)
}
func ParseTaskFromVTODO(content string) (vTask *models.Task, err error) {
parsed, err := ical.ParseCalendar(content)
if err != nil {
return nil, err
}
// We put the task details in a map to be able to handle them more easily
task := make(map[string]string)
for _, c := range parsed.Children {
if c.Name == "VTODO" {
for _, entry := range c.Children {
task[entry.Name] = entry.Value
}
// Breaking, to only process the first task
break
}
}
// Parse the priority
var priority int64
if _, ok := task["PRIORITY"]; ok {
priorityParsed, err := strconv.ParseInt(task["PRIORITY"], 10, 64)
if err != nil {
return nil, err
}
priority = parseVTODOPriority(priorityParsed)
}
// Parse the enddate
duration, _ := time.ParseDuration(task["DURATION"])
vTask = &models.Task{
UID: task["UID"],
Title: task["SUMMARY"],
Description: task["DESCRIPTION"],
Priority: priority,
DueDate: caldavTimeToTimestamp(task["DUE"]),
Updated: caldavTimeToTimestamp(task["DTSTAMP"]),
StartDate: caldavTimeToTimestamp(task["DTSTART"]),
DoneAt: caldavTimeToTimestamp(task["COMPLETED"]),
}
if task["STATUS"] == "COMPLETED" {
vTask.Done = true
}
if duration > 0 && !vTask.StartDate.IsZero() {
vTask.EndDate = vTask.StartDate.Add(duration)
}
return
}
// https://tools.ietf.org/html/rfc5545#section-3.3.5
func caldavTimeToTimestamp(tstring string) time.Time {
if tstring == "" {
return time.Time{}
}
format := DateFormat
if strings.HasSuffix(tstring, "Z") {
format = `20060102T150405Z`
}
t, err := time.Parse(format, tstring)
if err != nil {
log.Warningf("Error while parsing caldav time %s to TimeStamp: %s", tstring, err)
return time.Time{}
}
return t
}