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service.go
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service.go
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// Copyright 2015 tsuru authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package service
import (
"errors"
"net/http"
"regexp"
"github.com/tsuru/tsuru/auth"
"github.com/tsuru/tsuru/db"
"gopkg.in/mgo.v2/bson"
)
type Service struct {
Name string `bson:"_id"`
Username string
Password string
Endpoint map[string]string
OwnerTeams []string `bson:"owner_teams"`
Teams []string
Doc string
IsRestricted bool `bson:"is_restricted"`
}
var (
ErrServiceAlreadyExists = errors.New("Service already exists.")
)
func (s *Service) Get() error {
conn, err := db.Conn()
if err != nil {
return err
}
defer conn.Close()
query := bson.M{"_id": s.Name}
return conn.Services().Find(query).One(&s)
}
func (s *Service) Create() error {
conn, err := db.Conn()
if err != nil {
return err
}
defer conn.Close()
n, err := conn.Services().Find(bson.M{"_id": s.Name}).Count()
if err != nil {
return err
}
if n != 0 {
return ErrServiceAlreadyExists
}
return conn.Services().Insert(s)
}
func (s *Service) Update() error {
conn, err := db.Conn()
if err != nil {
return err
}
defer conn.Close()
return conn.Services().Update(bson.M{"_id": s.Name}, s)
}
func (s *Service) Delete() error {
conn, err := db.Conn()
if err != nil {
return err
}
defer conn.Close()
_, err = conn.Services().RemoveAll(bson.M{"_id": s.Name})
return err
}
func (s *Service) getClient(endpoint string) (cli *Client, err error) {
if e, ok := s.Endpoint[endpoint]; ok {
if p, _ := regexp.MatchString("^https?://", e); !p {
e = "http://" + e
}
cli = &Client{endpoint: e, username: s.GetUsername(), password: s.Password}
} else {
err = errors.New("Unknown endpoint: " + endpoint)
}
return
}
func (s *Service) GetUsername() string {
if s.Username != "" {
return s.Username
}
return s.Name
}
func (s *Service) findTeam(team *auth.Team) int {
for i, t := range s.Teams {
if team.Name == t {
return i
}
}
return -1
}
func (s *Service) HasTeam(team *auth.Team) bool {
return s.findTeam(team) > -1
}
func (s *Service) GrantAccess(team *auth.Team) error {
if s.HasTeam(team) {
return errors.New("This team already has access to this service")
}
s.Teams = append(s.Teams, team.Name)
return nil
}
func (s *Service) RevokeAccess(team *auth.Team) error {
index := s.findTeam(team)
if index < 0 {
return errors.New("This team does not have access to this service")
}
copy(s.Teams[index:], s.Teams[index+1:])
s.Teams = s.Teams[:len(s.Teams)-1]
return nil
}
func GetServicesNames(services []Service) []string {
sNames := make([]string, len(services))
for i, s := range services {
sNames[i] = s.Name
}
return sNames
}
func GetServicesByFilter(filter bson.M) ([]Service, error) {
conn, err := db.Conn()
if err != nil {
return nil, err
}
defer conn.Close()
var services []Service
err = conn.Services().Find(filter).All(&services)
return services, err
}
func GetServicesByTeamsAndServices(teams []string, services []string) ([]Service, error) {
var filter bson.M
if teams != nil || services != nil {
filter = bson.M{
"$or": []bson.M{
{"teams": bson.M{"$in": teams}},
{"_id": bson.M{"$in": services}},
{"is_restricted": false},
},
}
}
return GetServicesByFilter(filter)
}
func GetServicesByOwnerTeamsAndServices(teams []string, services []string) ([]Service, error) {
var filter bson.M
if teams != nil || services != nil {
filter = bson.M{
"$or": []bson.M{
{"owner_teams": bson.M{"$in": teams}},
{"_id": bson.M{"$in": services}},
},
}
}
return GetServicesByFilter(filter)
}
type ServiceModel struct {
Service string `json:"service"`
Instances []string `json:"instances"`
Plans []string `json:"plans"`
}
// Proxy is a proxy between tsuru and the service.
// This method allow customized service methods.
func Proxy(service *Service, path string, w http.ResponseWriter, r *http.Request) error {
endpoint, err := service.getClient("production")
if err != nil {
return err
}
return endpoint.Proxy(path, w, r)
}