plugins/caldav: new plugin
For now it can only list events for the current month. References: https://todo.sr.ht/~sircmpwn/koushin/60
This commit is contained in:
Simon Ser
parent
1bd930f043
commit
5b78cdc104
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@ -3,5 +3,6 @@
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!/public/themes/sourcehut
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/plugins/*
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!/plugins/base
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!/plugins/caldav
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!/plugins/carddav
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!/plugins/lua
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@ -13,6 +13,7 @@ import (
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"github.com/labstack/gommon/log"
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_ "git.sr.ht/~emersion/koushin/plugins/base"
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_ "git.sr.ht/~emersion/koushin/plugins/caldav"
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_ "git.sr.ht/~emersion/koushin/plugins/carddav"
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_ "git.sr.ht/~emersion/koushin/plugins/lua"
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)
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2
go.mod
2
go.mod
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@ -13,7 +13,7 @@ require (
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github.com/emersion/go-sasl v0.0.0-20191210011802-430746ea8b9b
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github.com/emersion/go-smtp v0.12.1
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github.com/emersion/go-vcard v0.0.0-20191221110513-5f81fa0d3cc7
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github.com/emersion/go-webdav v0.2.0
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github.com/emersion/go-webdav v0.2.1-0.20200205170548-baf63fb1b759
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github.com/gorilla/css v1.0.0 // indirect
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github.com/labstack/echo/v4 v4.1.15-0.20200203180927-504f39abaf32
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github.com/labstack/gommon v0.3.0
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11
go.sum
11
go.sum
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@ -6,6 +6,7 @@ github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWR
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github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
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github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
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github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
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@ -28,14 +29,16 @@ github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe h1:40SWqY0
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github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe/go.mod h1:aqO8z8wPrjkscevZJFVE1wXJrLpC5LtJG7fqLOsPb2U=
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github.com/emersion/go-vcard v0.0.0-20191221110513-5f81fa0d3cc7 h1:SE+tcd+0kn0cT4MqTo66gmkjqWHF1Z+Yha5/rhLs/H8=
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github.com/emersion/go-vcard v0.0.0-20191221110513-5f81fa0d3cc7/go.mod h1:HMJKR5wlh/ziNp+sHEDV2ltblO4JD2+IdDOWtGcQBTM=
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github.com/emersion/go-webdav v0.2.0 h1:w6S3ebKLPa49uqzi5CZgV13Bxb8gPXPcaI6D3bfzcXQ=
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github.com/emersion/go-webdav v0.2.0/go.mod h1:5xPS/W9bnqkHMLtgygkgGFvm6uAsbeVRSIZk0ewu4d4=
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github.com/emersion/go-webdav v0.2.1-0.20200205170548-baf63fb1b759 h1:8joXUXgdaV935H/AUKhnyvUf754VcjmQAenNsakT4pA=
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github.com/emersion/go-webdav v0.2.1-0.20200205170548-baf63fb1b759/go.mod h1:dfzmdPRkPLLUQU00fDfwPJomgFmdblZpMoh3CaUsGCc=
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github.com/gorilla/css v1.0.0 h1:BQqNyPTi50JCFMTw/b67hByjMVXZRwGha6wxVGkeihY=
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github.com/gorilla/css v1.0.0/go.mod h1:Dn721qIggHpt4+EFCcTLTU/vk5ySda2ReITrtgBl60c=
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github.com/labstack/echo/v4 v4.1.15-0.20200203180927-504f39abaf32 h1:UiIEDYxPPmjl6mMIY4QPDguD/QAtK+gR4IRMSrjWmeA=
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github.com/labstack/echo/v4 v4.1.15-0.20200203180927-504f39abaf32/go.mod h1:mbsytw7LXzfWxMLdvzjjeERCwTL3PI03GIPpUpaMnfQ=
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github.com/labstack/gommon v0.3.0 h1:JEeO0bvc78PKdyHxloTKiF8BD5iGrH8T6MSeGvSgob0=
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github.com/labstack/gommon v0.3.0/go.mod h1:MULnywXg0yavhxWKc+lOruYdAhDwPK9wf0OL7NoOu+k=
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github.com/luxifer/ical v0.0.0-20191105105432-84b768eb6395 h1:H7Rbug09BDCzr6k/PASDjSMjbJGzXswwqesaDiBNJz8=
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github.com/luxifer/ical v0.0.0-20191105105432-84b768eb6395/go.mod h1:TGCe94U3u9fXQl4yHJ8W87z1czj057aVLxYnFYTDC08=
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github.com/martinlindhe/base36 v1.0.0 h1:eYsumTah144C0A8P1T/AVSUk5ZoLnhfYFM3OGQxB52A=
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github.com/martinlindhe/base36 v1.0.0/go.mod h1:+AtEs8xrBpCeYgSLoY/aJ6Wf37jtBuR0s35750M27+8=
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github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
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@ -48,9 +51,11 @@ github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHX
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github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
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github.com/microcosm-cc/bluemonday v1.0.2 h1:5lPfLTTAvAbtS0VqT+94yOtFnGfUWYyx0+iToC3Os3s=
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github.com/microcosm-cc/bluemonday v1.0.2/go.mod h1:iVP4YcDBq+n/5fb23BhYFvIMq/leAFZyRl6bYmGDlGc=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
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github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
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github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
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github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
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github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
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@ -83,7 +88,9 @@ golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
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golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
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golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
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gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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layeh.com/gopher-luar v1.0.7 h1:53iv6CCkRs5wyofZ+qVXcyAYQOIG52s6pt4xkqZdq7k=
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layeh.com/gopher-luar v1.0.7/go.mod h1:TPnIVCZ2RJBndm7ohXyaqfhzjlZ+OA2SZR/YwL8tECk=
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@ -0,0 +1,61 @@
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package koushincaldav
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import (
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"fmt"
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"net/http"
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"net/url"
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"git.sr.ht/~emersion/koushin"
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"github.com/emersion/go-webdav/caldav"
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)
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var errNoCalendar = fmt.Errorf("caldav: no calendar found")
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type authRoundTripper struct {
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upstream http.RoundTripper
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session *koushin.Session
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}
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func (rt *authRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
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rt.session.SetHTTPBasicAuth(req)
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return rt.upstream.RoundTrip(req)
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}
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func newClient(u *url.URL, session *koushin.Session) (*caldav.Client, error) {
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rt := authRoundTripper{
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upstream: http.DefaultTransport,
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session: session,
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}
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c, err := caldav.NewClient(&http.Client{Transport: &rt}, u.String())
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if err != nil {
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return nil, fmt.Errorf("failed to create CalDAV client: %v", err)
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}
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return c, nil
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}
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func getCalendar(u *url.URL, session *koushin.Session) (*caldav.Client, *caldav.Calendar, error) {
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c, err := newClient(u, session)
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if err != nil {
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return nil, nil, err
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}
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principal, err := c.FindCurrentUserPrincipal()
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if err != nil {
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return nil, nil, fmt.Errorf("failed to query CalDAV principal: %v", err)
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}
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calendarHomeSet, err := c.FindCalendarHomeSet(principal)
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if err != nil {
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return nil, nil, fmt.Errorf("failed to query CalDAV calendar home set: %v", err)
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}
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calendars, err := c.FindCalendars(calendarHomeSet)
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if err != nil {
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return nil, nil, fmt.Errorf("failed to find calendars: %v", err)
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}
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if len(calendars) == 0 {
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return nil, nil, errNoCalendar
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}
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return c, &calendars[0], nil
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}
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@ -0,0 +1,71 @@
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package koushincaldav
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import (
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"fmt"
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"net/http"
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"net/url"
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"git.sr.ht/~emersion/koushin"
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)
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func sanityCheckURL(u *url.URL) error {
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req, err := http.NewRequest(http.MethodOptions, u.String(), nil)
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if err != nil {
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return err
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}
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resp, err := http.DefaultClient.Do(req)
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if err != nil {
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return err
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}
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resp.Body.Close()
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// Servers might require authentication to perform an OPTIONS request
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if resp.StatusCode/100 != 2 && resp.StatusCode != http.StatusUnauthorized {
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return fmt.Errorf("HTTP request failed: %v %v", resp.StatusCode, resp.Status)
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}
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return nil
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}
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func newPlugin(srv *koushin.Server) (koushin.Plugin, error) {
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u, err := srv.Upstream("caldavs", "caldav+insecure", "https", "http+insecure")
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if _, ok := err.(*koushin.NoUpstreamError); ok {
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return nil, nil
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} else if err != nil {
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return nil, fmt.Errorf("caldav: failed to parse upstream caldav server: %v", err)
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}
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switch u.Scheme {
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case "caldavs":
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u.Scheme = "https"
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case "caldav+insecure", "http+insecure":
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u.Scheme = "http"
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}
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if u.Scheme == "" {
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return nil, fmt.Errorf("caldav: discovery not yet implemented") // TODO
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}
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if err := sanityCheckURL(u); err != nil {
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return nil, fmt.Errorf("caldav: failed to connect to CalDAV server %q: %v", u, err)
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}
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srv.Logger().Printf("Configured upstream CalDAV server: %v", u)
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p := koushin.GoPlugin{Name: "caldav"}
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registerRoutes(&p, u)
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return p.Plugin(), nil
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}
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func init() {
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koushin.RegisterPluginLoader(func(s *koushin.Server) ([]koushin.Plugin, error) {
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p, err := newPlugin(s)
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if err != nil {
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return nil, err
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}
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if p == nil {
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return nil, nil
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}
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return []koushin.Plugin{p}, err
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})
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}
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@ -0,0 +1,25 @@
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{{template "head.html"}}
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<h1>koushin</h1>
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<p>
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<a href="/">Back</a>
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</p>
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<h2>Calendar: {{.Calendar.Name}}</h2>
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{{if .Events}}
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<ul>
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{{range .Events}}
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{{$event := index .Data.Events 0}}
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<li>
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<a href="/calendar/{{$event.UID | pathescape}}">{{$event.Summary}}</a>
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({{$event.StartDate | formatdate}} — {{$event.EndDate | formatdate}})
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</li>
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{{end}}
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</ul>
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{{else}}
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<p>No events.</p>
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{{end}}
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{{template "foot.html"}}
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@ -0,0 +1,66 @@
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package koushincaldav
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import (
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"fmt"
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"net/http"
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"net/url"
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"time"
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"git.sr.ht/~emersion/koushin"
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"github.com/emersion/go-webdav/caldav"
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)
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type CalendarRenderData struct {
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koushin.BaseRenderData
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Calendar *caldav.Calendar
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Events []caldav.CalendarObject
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}
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func registerRoutes(p *koushin.GoPlugin, u *url.URL) {
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p.GET("/calendar", func(ctx *koushin.Context) error {
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// TODO: multi-calendar support
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c, calendar, err := getCalendar(u, ctx.Session)
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if err != nil {
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return err
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}
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now := time.Now()
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start := time.Date(now.Year(), now.Month(), 1, 0, 0, 0, 0, now.Location())
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end := start.AddDate(0, 1, 0)
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query := caldav.CalendarQuery{
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CompRequest: caldav.CalendarCompRequest{
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Name: "VCALENDAR",
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Props: []string{"VERSION"},
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Comps: []caldav.CalendarCompRequest{{
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Name: "VEVENT",
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Props: []string{
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"SUMMARY",
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"UID",
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"DTSTART",
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"DTEND",
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"DURATION",
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},
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}},
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},
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CompFilter: caldav.CompFilter{
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Name: "VCALENDAR",
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Comps: []caldav.CompFilter{{
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Name: "VEVENT",
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Start: start,
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End: end,
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}},
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},
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}
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events, err := c.QueryCalendar(calendar.Path, &query)
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if err != nil {
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return fmt.Errorf("failed to query calendar: %v", err)
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}
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return ctx.Render(http.StatusOK, "calendar.html", &CalendarRenderData{
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BaseRenderData: *koushin.NewBaseRenderData(ctx),
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Calendar: calendar,
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Events: events,
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})
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})
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}
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Reference in New Issue