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|
package main
import (
"bytes"
"errors"
"io/ioutil"
"os"
"path/filepath"
"strings"
"time"
log "github.com/sirupsen/logrus"
"gitlab.com/gitlab-org/gitlab-pages/metrics"
)
type domains map[string]*domain
type domainsUpdater func(domains domains)
func (d domains) addDomain(rootDomain, group, projectName string, config *domainConfig) error {
newDomain := &domain{
Group: group,
ProjectName: projectName,
Config: config,
}
var domainName string
domainName = strings.ToLower(config.Domain)
d[domainName] = newDomain
return nil
}
func (d domains) updateGroupDomain(rootDomain, group, projectName string, httpsOnly bool) error {
domainName := strings.ToLower(group + "." + rootDomain)
groupDomain := d[domainName]
if groupDomain == nil {
groupDomain = &domain{
Group: group,
Projects: make(projects),
}
}
groupDomain.Projects[projectName] = &project{
HTTPSOnly: httpsOnly,
}
d[domainName] = groupDomain
return nil
}
func (d domains) readProjectConfig(rootDomain, group, projectName string) (err error) {
var config domainsConfig
err = config.Read(group, projectName)
if err != nil {
// This is necessary to preserve the previous behaviour where a
// group domain is created even if no config.json files are
// loaded successfully. Is it safe to remove this?
d.updateGroupDomain(rootDomain, group, projectName, false)
return
}
d.updateGroupDomain(rootDomain, group, projectName, config.HTTPSOnly)
for _, domainConfig := range config.Domains {
config := domainConfig // domainConfig is reused for each loop iteration
if domainConfig.Valid(rootDomain) {
d.addDomain(rootDomain, group, projectName, &config)
}
}
return
}
func (d domains) readProject(rootDomain, group, projectName string) error {
if strings.HasPrefix(projectName, ".") {
return errors.New("hidden project")
}
// Ignore projects that have .deleted in name
if strings.HasSuffix(projectName, ".deleted") {
return errors.New("deleted project")
}
_, err := os.Lstat(filepath.Join(group, projectName, "public"))
if err != nil {
return errors.New("missing public/ in project")
}
d.readProjectConfig(rootDomain, group, projectName)
return nil
}
func (d domains) readProjects(rootDomain, group string) (count int) {
projects, err := os.Open(group)
if err != nil {
return
}
defer projects.Close()
fis, err := projects.Readdir(0)
if err != nil {
log.WithError(err).WithFields(log.Fields{
"group": group,
}).Print("readdir failed")
}
for _, project := range fis {
// Ignore non directories
if !project.IsDir() {
continue
}
err := d.readProject(rootDomain, group, project.Name())
if err == nil {
count++
}
}
return
}
func (d domains) ReadGroups(rootDomain string) error {
groups, err := os.Open(".")
if err != nil {
return err
}
defer groups.Close()
fis, err := groups.Readdir(0)
if err != nil {
log.WithError(err).Print("readdir failed")
}
for _, group := range fis {
if !group.IsDir() {
continue
}
if strings.HasPrefix(group.Name(), ".") {
continue
}
d.readProjects(rootDomain, group.Name())
}
return nil
}
func watchDomains(rootDomain string, updater domainsUpdater, interval time.Duration) {
lastUpdate := []byte("no-update")
for {
// Read the update file
update, err := ioutil.ReadFile(".update")
if err != nil && !os.IsNotExist(err) {
log.WithError(err).Print("failed to read update timestamp")
time.Sleep(interval)
continue
}
// If it's the same ignore
if bytes.Equal(lastUpdate, update) {
time.Sleep(interval)
continue
}
lastUpdate = update
started := time.Now()
domains := make(domains)
domains.ReadGroups(rootDomain)
duration := time.Since(started).Seconds()
log.WithFields(log.Fields{
"domains": len(domains),
"duration": duration,
"hash": update,
}).Print("updated domains")
if updater != nil {
updater(domains)
}
// Update prometheus metrics
metrics.DomainLastUpdateTime.Set(float64(time.Now().UTC().Unix()))
metrics.DomainsServed.Set(float64(len(domains)))
metrics.DomainUpdates.Inc()
time.Sleep(interval)
}
}
|
