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149 lines
3.2 KiB
Go
149 lines
3.2 KiB
Go
package auth
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"log"
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"net/http"
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urlpkg "net/url"
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"git.phc.dm.unipi.it/phc/website/model"
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)
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// ldapUser represents an LDAP User, most fields are inherited from [auth.User]
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type ldapUser struct {
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Uid string `json:"username"`
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NumericId int `json:"id"`
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Name string `json:"name"`
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Surname string `json:"surname"`
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Email string `json:"email"`
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Role string `json:"role"`
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Gecos string `json:"gecos"`
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}
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// AsUser converts an [ldapUser] to an instance of [auth.User]
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func (u ldapUser) AsUser() *model.User {
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return &model.User{
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Username: u.Uid,
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Name: u.Name,
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Surname: u.Surname,
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Email: u.Email,
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FullName: u.Gecos,
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}
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}
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// ldapAuthService just holds the remote host of the HTTP LDAP service to make requests to
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type ldapAuthService struct {
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Host string
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}
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func newLDAPAuthService(host string) Service {
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return &ldapAuthService{host}
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}
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// doGetRequest is a utility to make HTTP GET requests
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func (a *ldapAuthService) doGetRequest(url string, response interface{}) error {
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u, err := urlpkg.JoinPath(a.Host, "poisson-ldap", url)
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if err != nil {
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return err
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}
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req, err := http.NewRequest(
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"GET", u, bytes.NewBuffer([]byte("")),
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)
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log.Printf(`%q`, a.Host)
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if err != nil {
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log.Printf(`GET %q resulted in %v`, url, err)
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return err
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}
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res, err := http.DefaultClient.Do(req)
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if err != nil {
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log.Printf(`GET %q resulted in %v`, url, err)
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return err
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}
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if err := json.NewDecoder(res.Body).Decode(response); err != nil {
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log.Printf(`GET %q resulted in %v`, url, err)
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return err
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}
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return nil
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}
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// doPostRequest is a utility to make HTTP POST requests
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func (a *ldapAuthService) doPostRequest(url string, request interface{}, response interface{}) error {
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jsonStr, err := json.Marshal(request)
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if err != nil {
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return err
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}
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u, err := urlpkg.JoinPath(a.Host, "ldap", url)
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if err != nil {
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return err
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}
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req, err := http.NewRequest("POST", u, bytes.NewBuffer(jsonStr))
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if err != nil {
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return err
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}
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req.Header.Set("Content-Type", "application/json")
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res, err := http.DefaultClient.Do(req)
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if err != nil {
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return err
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}
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return json.NewDecoder(res.Body).Decode(response)
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}
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func (a *ldapAuthService) GetUser(username string) (*model.User, error) {
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var user ldapUser
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if err := a.doGetRequest(fmt.Sprintf("/user/%s", username), &user); err != nil {
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return nil, err
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}
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return user.AsUser(), nil
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}
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func (a *ldapAuthService) GetUsers() ([]*model.User, error) {
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ldapUsers := []*ldapUser{}
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if err := a.doGetRequest("/users", &ldapUsers); err != nil {
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return nil, err
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}
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users := make([]*model.User, len(ldapUsers))
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for i, u := range ldapUsers {
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users[i] = u.AsUser()
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}
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return users, nil
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}
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func (a *ldapAuthService) GetSession(token string) (*model.Session, error) {
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var response model.Session
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if err := a.doGetRequest(fmt.Sprintf("/session/%s", token), &response); err != nil {
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return nil, err
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}
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return &response, nil
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}
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func (a *ldapAuthService) Login(username, password string) (*model.Session, error) {
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reqBody := map[string]interface{}{
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"username": username,
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"password": password,
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}
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var response model.Session
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if err := a.doPostRequest("/login", reqBody, &response); err != nil {
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return nil, err
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}
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return &response, nil
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}
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