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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"
"gitlab.com/gitlab-org/gitlab-pages/internal/serving/disk"
)
// Domain is a domain that gitlab-pages can serve.
type Domain struct {
Name string
CertificateCert string
CertificateKey string
Resolver Resolver
certificate *tls.Certificate
certificateError error
certificateOnce sync.Once
}
// String implements Stringer.
func (d *Domain) String() string {
return d.Name
}
func (d *Domain) isUnconfigured() bool {
if d == nil {
return true
}
return d.Resolver == nil
}
func (d *Domain) resolve(r *http.Request) *serving.Request {
request, _ := d.Resolver.Resolve(r)
// TODO improve code around default serving, when `disk` serving gets removed
// https://gitlab.com/gitlab-org/gitlab-pages/issues/353
if request == nil {
return &serving.Request{Serving: disk.New()}
}
return request
}
// GetLookupPath returns a project details based on the request. If LookupPath
// is nil it means that a project does not exist.
func (d *Domain) GetLookupPath(r *http.Request) *serving.LookupPath {
request := d.resolve(r)
if request == nil {
return nil
}
return request.LookupPath
}
// 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 lookupPath := d.GetLookupPath(r); lookupPath != nil {
return lookupPath.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 lookupPath := d.GetLookupPath(r); lookupPath != nil {
return lookupPath.HasAccessControl
}
return false
}
// 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 lookupPath := d.GetLookupPath(r); lookupPath != nil {
return lookupPath.IsNamespaceProject
}
return false
}
// GetProjectID figures out what is the ID of the project user tries to access
func (d *Domain) GetProjectID(r *http.Request) uint64 {
if d.isUnconfigured() {
return 0
}
if lookupPath := d.GetLookupPath(r); lookupPath != nil {
return lookupPath.ProjectID
}
return 0
}
// HasLookupPath figures out if the project exists that the user tries to access
func (d *Domain) HasLookupPath(r *http.Request) bool {
if d.isUnconfigured() {
return false
}
return d.GetLookupPath(r) != nil
}
// EnsureCertificate parses the PEM-encoded certificate for the domain
func (d *Domain) EnsureCertificate() (*tls.Certificate, error) {
if d.isUnconfigured() || len(d.CertificateKey) == 0 || len(d.CertificateCert) == 0 {
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.HasLookupPath(r) {
// TODO: this seems to be wrong: as we should rather return false, and
// fallback to `ServeNotFoundHTTP` to handle this case
httperrors.Serve404(w)
return true
}
request := d.resolve(r)
return request.ServeFileHTTP(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.HasLookupPath(r) {
httperrors.Serve404(w)
return
}
request := d.resolve(r)
request.ServeNotFoundHTTP(w, r)
}
|
