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package domain
import (
"crypto/tls"
"errors"
"net/http"
"sync"
"gitlab.com/gitlab-org/gitlab-pages/internal/httperrors"
"gitlab.com/gitlab-org/gitlab-pages/internal/serving"
)
// Domain is a domain that gitlab-pages can serve.
type Domain struct {
Name string
Location string
CertificateCert string
CertificateKey string
Customized bool // TODO we should get rid of this
Resolver Resolver
lookupPaths map[string]*Project
serving serving.Serving
certificate *tls.Certificate
certificateError error
certificateOnce sync.Once
}
// String implements Stringer.
func (d *Domain) String() string {
return d.Name
}
func (d *Domain) isCustomDomain() bool {
if d.isUnconfigured() {
panic("project config and group config should not be nil at the same time")
}
return d.Customized
}
func (d *Domain) isUnconfigured() bool {
if d == nil {
return true
}
return d.Resolver == nil
}
func (d *Domain) resolve(r *http.Request) (*Project, string) {
// TODO use lookupPaths first
project, subpath, _ := d.Resolver.Resolve(r)
// current implementation does not return errors in any case
if project == nil {
return nil, ""
}
return project, subpath
}
func (d *Domain) getProject(r *http.Request) *Project {
project, _ := d.resolve(r)
return project
}
// Serving returns domain serving driver
func (d *Domain) Serving() serving.Serving {
if d.serving == nil {
d.serving = serving.NewDiskServing(d.Name, d.Location)
}
return d.serving
}
func (d *Domain) toHandler(w http.ResponseWriter, r *http.Request) *handler {
project, subpath := d.resolve(r)
return &handler{
writer: w,
request: r,
project: project,
subpath: subpath,
}
}
func (d *Domain) hasProject(r *http.Request) bool {
return d.getProject(r) != nil
}
// IsHTTPSOnly figures out if the request should be handled with HTTPS
// only by looking at group and project level config.
func (d *Domain) IsHTTPSOnly(r *http.Request) bool {
if d.isUnconfigured() {
return false
}
if project := d.getProject(r); project != nil {
return project.IsHTTPSOnly
}
return false
}
// IsAccessControlEnabled figures out if the request is to a project that has access control enabled
func (d *Domain) IsAccessControlEnabled(r *http.Request) bool {
if d.isUnconfigured() {
return false
}
if project := d.getProject(r); project != nil {
return project.HasAccessControl
}
return false
}
// HasAcmeChallenge checks domain directory contains particular acme challenge
func (d *Domain) HasAcmeChallenge(r *http.Request, token string) bool {
if d.isUnconfigured() || !d.isCustomDomain() || !d.hasProject(r) {
return false
}
return d.Serving().HasAcmeChallenge(d.toHandler(nil, r), token) // TODO
}
// IsNamespaceProject figures out if the request is to a namespace project
func (d *Domain) IsNamespaceProject(r *http.Request) bool {
if d.isUnconfigured() {
return false
}
// If request is to a custom domain, we do not handle it as a namespace project
// as there can't be multiple projects under the same custom domain
if d.isCustomDomain() { // TODO do we need a separate path for this
return false
}
if project := d.getProject(r); project != nil {
return project.IsNamespaceProject
}
return false
}
// GetID figures out what is the ID of the project user tries to access
func (d *Domain) GetID(r *http.Request) uint64 {
if d.isUnconfigured() {
return 0
}
if project := d.getProject(r); project != nil {
return project.ID
}
return 0
}
// HasProject figures out if the project exists that the user tries to access
func (d *Domain) HasProject(r *http.Request) bool {
if d.isUnconfigured() {
return false
}
if project := d.getProject(r); project != nil {
return true
}
return false
}
// EnsureCertificate parses the PEM-encoded certificate for the domain
func (d *Domain) EnsureCertificate() (*tls.Certificate, error) {
// TODO check len certificates instead of custom domain!
if d.isUnconfigured() || !d.isCustomDomain() {
return nil, errors.New("tls certificates can be loaded only for pages with configuration")
}
d.certificateOnce.Do(func() {
var cert tls.Certificate
cert, d.certificateError = tls.X509KeyPair(
[]byte(d.CertificateCert),
[]byte(d.CertificateKey),
)
if d.certificateError == nil {
d.certificate = &cert
}
})
return d.certificate, d.certificateError
}
// ServeFileHTTP returns true if something was served, false if not.
func (d *Domain) ServeFileHTTP(w http.ResponseWriter, r *http.Request) bool {
if d.isUnconfigured() || !d.hasProject(r) {
httperrors.Serve404(w)
return true
}
return d.Serving().ServeFileHTTP(d.toHandler(w, r))
}
// ServeNotFoundHTTP serves the not found pages from the projects.
func (d *Domain) ServeNotFoundHTTP(w http.ResponseWriter, r *http.Request) {
if d.isUnconfigured() || !d.hasProject(r) {
httperrors.Serve404(w)
return
}
d.Serving().ServeNotFoundHTTP(d.toHandler(w, r))
}
|
