alps/plugins/carddav/routes.go

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package alpscarddav
import (
"fmt"
"net/http"
"net/url"
"path"
"strings"
"git.sr.ht/~migadu/alps"
"github.com/emersion/go-vcard"
"github.com/emersion/go-webdav/carddav"
"github.com/google/uuid"
"github.com/labstack/echo/v4"
)
type AddressBookRenderData struct {
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alps.BaseRenderData
AddressBook *carddav.AddressBook
AddressObjects []AddressObject
Query string
}
type AddressObjectRenderData struct {
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alps.BaseRenderData
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AddressBook *carddav.AddressBook
AddressObject AddressObject
}
type UpdateAddressObjectRenderData struct {
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alps.BaseRenderData
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AddressBook *carddav.AddressBook
AddressObject *carddav.AddressObject // nil if creating a new contact
Card vcard.Card
}
func parseObjectPath(s string) (string, error) {
p, err := url.PathUnescape(s)
if err != nil {
err = fmt.Errorf("failed to parse path: %v", err)
return "", echo.NewHTTPError(http.StatusBadRequest, err)
}
return string(p), nil
}
func registerRoutes(p *plugin) {
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p.GET("/contacts", func(ctx *alps.Context) error {
queryText := ctx.QueryParam("query")
c, addressBook, err := p.clientWithAddressBook(ctx.Session)
if err != nil {
return err
}
query := carddav.AddressBookQuery{
DataRequest: carddav.AddressDataRequest{
Props: []string{
vcard.FieldFormattedName,
vcard.FieldEmail,
vcard.FieldUID,
},
},
PropFilters: []carddav.PropFilter{{
Name: vcard.FieldFormattedName,
}},
}
if queryText != "" {
query.PropFilters = []carddav.PropFilter{
{
Name: vcard.FieldFormattedName,
TextMatches: []carddav.TextMatch{{Text: queryText}},
},
{
Name: vcard.FieldEmail,
TextMatches: []carddav.TextMatch{{Text: queryText}},
},
}
}
aos, err := c.QueryAddressBook(addressBook.Path, &query)
if err != nil {
return fmt.Errorf("failed to query CardDAV addresses: %v", err)
}
return ctx.Render(http.StatusOK, "address-book.html", &AddressBookRenderData{
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BaseRenderData: *alps.NewBaseRenderData(ctx),
AddressBook: addressBook,
AddressObjects: newAddressObjectList(aos),
Query: queryText,
})
})
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p.GET("/contacts/:path", func(ctx *alps.Context) error {
path, err := parseObjectPath(ctx.Param("path"))
if err != nil {
return err
}
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c, addressBook, err := p.clientWithAddressBook(ctx.Session)
if err != nil {
return err
}
multiGet := carddav.AddressBookMultiGet{
DataRequest: carddav.AddressDataRequest{
Props: []string{
vcard.FieldFormattedName,
vcard.FieldEmail,
vcard.FieldUID,
},
},
}
aos, err := c.MultiGetAddressBook(path, &multiGet)
if err != nil {
return fmt.Errorf("failed to query CardDAV address: %v", err)
}
if len(aos) != 1 {
return fmt.Errorf("expected exactly one address object with path %q, got %v", path, len(aos))
}
ao := &aos[0]
return ctx.Render(http.StatusOK, "address-object.html", &AddressObjectRenderData{
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BaseRenderData: *alps.NewBaseRenderData(ctx),
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AddressBook: addressBook,
AddressObject: AddressObject{ao},
})
})
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updateContact := func(ctx *alps.Context) error {
addressObjectPath, err := parseObjectPath(ctx.Param("path"))
if err != nil {
return err
}
c, addressBook, err := p.clientWithAddressBook(ctx.Session)
if err != nil {
return err
}
var ao *carddav.AddressObject
var card vcard.Card
if addressObjectPath != "" {
ao, err := c.GetAddressObject(addressObjectPath)
if err != nil {
return fmt.Errorf("failed to query CardDAV address: %v", err)
}
card = ao.Card
} else {
card = make(vcard.Card)
}
if ctx.Request().Method == "POST" {
fn := ctx.FormValue("fn")
emails := strings.Split(ctx.FormValue("emails"), ",")
if _, ok := card[vcard.FieldVersion]; !ok {
// Some CardDAV servers (e.g. Google) don't support vCard 4.0
var version = "4.0"
if !addressBook.SupportsAddressData(vcard.MIMEType, version) {
version = "3.0"
}
if !addressBook.SupportsAddressData(vcard.MIMEType, version) {
return fmt.Errorf("upstream CardDAV server doesn't support vCard %v", version)
}
card.SetValue(vcard.FieldVersion, version)
}
if field := card.Preferred(vcard.FieldFormattedName); field != nil {
field.Value = fn
} else {
card.Add(vcard.FieldFormattedName, &vcard.Field{Value: fn})
}
// TODO: Google wants a "N" field, fails with a 400 otherwise
// TODO: params are lost here
var emailFields []*vcard.Field
for _, email := range emails {
emailFields = append(emailFields, &vcard.Field{
Value: strings.TrimSpace(email),
})
}
card[vcard.FieldEmail] = emailFields
id := uuid.New()
if _, ok := card[vcard.FieldUID]; !ok {
card.SetValue(vcard.FieldUID, id.URN())
}
var p string
if ao != nil {
p = ao.Path
} else {
p = path.Join(addressBook.Path, id.String()+".vcf")
}
ao, err = c.PutAddressObject(p, card)
if err != nil {
return fmt.Errorf("failed to put address object: %v", err)
}
return ctx.Redirect(http.StatusFound, AddressObject{ao}.URL())
}
return ctx.Render(http.StatusOK, "update-address-object.html", &UpdateAddressObjectRenderData{
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BaseRenderData: *alps.NewBaseRenderData(ctx),
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AddressBook: addressBook,
AddressObject: ao,
Card: card,
})
}
p.GET("/contacts/create", updateContact)
p.POST("/contacts/create", updateContact)
p.GET("/contacts/:path/edit", updateContact)
p.POST("/contacts/:path/edit", updateContact)
p.POST("/contacts/:path/delete", func(ctx *alps.Context) error {
path, err := parseObjectPath(ctx.Param("path"))
if err != nil {
return err
}
c, err := p.client(ctx.Session)
if err != nil {
return err
}
if err := c.RemoveAll(path); err != nil {
return fmt.Errorf("failed to delete address object: %v", err)
}
return ctx.Redirect(http.StatusFound, "/contacts")
})
}