Files
gowebmail/internal/handlers/auth.go
2026-03-15 19:33:51 +00:00

734 lines
25 KiB
Go

package handlers
import (
"crypto/rand"
"encoding/base64"
"encoding/json"
"fmt"
"html"
"log"
"net"
"net/http"
"strings"
"time"
"github.com/ghostersk/gowebmail/config"
goauth "github.com/ghostersk/gowebmail/internal/auth"
"github.com/ghostersk/gowebmail/internal/crypto"
"github.com/ghostersk/gowebmail/internal/db"
"github.com/ghostersk/gowebmail/internal/mfa"
"github.com/ghostersk/gowebmail/internal/middleware"
"github.com/ghostersk/gowebmail/internal/models"
"golang.org/x/oauth2"
)
// AuthHandler handles login, register, logout, MFA, and OAuth2 connect flows.
type AuthHandler struct {
db *db.DB
cfg *config.Config
renderer *Renderer
syncer interface{ TriggerReconcile() }
}
// ---- Login ----
func (h *AuthHandler) ShowLogin(w http.ResponseWriter, r *http.Request) {
h.renderer.Render(w, "login", nil)
}
func (h *AuthHandler) Login(w http.ResponseWriter, r *http.Request) {
username := r.FormValue("username")
password := r.FormValue("password")
ip := middleware.ClientIP(r)
ua := r.UserAgent()
if username == "" || password == "" {
http.Redirect(w, r, "/auth/login?error=missing_fields", http.StatusFound)
return
}
// Accept login by username or email
user, err := h.db.GetUserByUsername(username)
if err != nil || user == nil {
user, err = h.db.GetUserByEmail(username)
}
if err != nil || user == nil || !user.IsActive {
h.db.WriteAudit(nil, models.AuditLoginFail, "unknown user: "+username, ip, ua)
http.Redirect(w, r, "/auth/login?error=invalid_credentials", http.StatusFound)
return
}
// Per-user IP access check — evaluated before password to avoid timing leaks
switch h.db.CheckUserIPAccess(user.ID, ip) {
case "deny":
h.db.WriteAudit(&user.ID, models.AuditLoginFail, "IP not in allow-list: "+ip, ip, ua)
http.Redirect(w, r, "/auth/login?error=location_not_authorized", http.StatusFound)
return
case "skip_brute":
// Signal the BruteForceProtect middleware to skip failure counting for this user/IP
w.Header().Set("X-Skip-Brute", "1")
}
if err := crypto.CheckPassword(password, user.PasswordHash); err != nil {
uid := user.ID
h.db.WriteAudit(&uid, models.AuditLoginFail, "bad password for: "+username, ip, ua)
http.Redirect(w, r, "/auth/login?error=invalid_credentials", http.StatusFound)
return
}
token, _ := h.db.CreateSession(user.ID, 7*24*time.Hour)
h.setSessionCookie(w, token)
h.db.TouchLastLogin(user.ID)
uid := user.ID
h.db.WriteAudit(&uid, models.AuditLogin, "login from "+ip, ip, ua)
if user.MFAEnabled {
http.Redirect(w, r, "/auth/mfa", http.StatusFound)
return
}
http.Redirect(w, r, "/", http.StatusFound)
}
func (h *AuthHandler) Logout(w http.ResponseWriter, r *http.Request) {
cookie, err := r.Cookie("gomail_session")
if err == nil {
userID := middleware.GetUserID(r)
if userID > 0 {
h.db.WriteAudit(&userID, models.AuditLogout, "", middleware.ClientIP(r), r.UserAgent())
}
h.db.DeleteSession(cookie.Value)
}
http.SetCookie(w, &http.Cookie{
Name: "gomail_session", Value: "", MaxAge: -1, Path: "/",
Secure: h.cfg.SecureCookie, HttpOnly: true, SameSite: http.SameSiteLaxMode,
})
http.Redirect(w, r, "/auth/login", http.StatusFound)
}
// ---- MFA ----
func (h *AuthHandler) ShowMFA(w http.ResponseWriter, r *http.Request) {
h.renderer.Render(w, "mfa", nil)
}
func (h *AuthHandler) VerifyMFA(w http.ResponseWriter, r *http.Request) {
userID := middleware.GetUserID(r)
code := r.FormValue("code")
ip := middleware.ClientIP(r)
ua := r.UserAgent()
user, err := h.db.GetUserByID(userID)
if err != nil || user == nil {
http.Redirect(w, r, "/auth/login", http.StatusFound)
return
}
if !mfa.Validate(user.MFASecret, code) {
h.db.WriteAudit(&userID, models.AuditMFAFail, "bad TOTP code", ip, ua)
http.Redirect(w, r, "/auth/mfa?error=invalid_code", http.StatusFound)
return
}
cookie, _ := r.Cookie("gomail_session")
h.db.SetSessionMFAVerified(cookie.Value)
h.db.WriteAudit(&userID, models.AuditMFASuccess, "", ip, ua)
http.Redirect(w, r, "/", http.StatusFound)
}
// ---- MFA Setup (user settings) ----
func (h *AuthHandler) MFASetupBegin(w http.ResponseWriter, r *http.Request) {
userID := middleware.GetUserID(r)
user, err := h.db.GetUserByID(userID)
if err != nil || user == nil {
writeJSONError(w, http.StatusUnauthorized, "not authenticated")
return
}
secret, err := mfa.GenerateSecret()
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "failed to generate secret")
return
}
if err := h.db.SetMFAPending(userID, secret); err != nil {
writeJSONError(w, http.StatusInternalServerError, "failed to store pending secret")
return
}
qr := mfa.QRCodeURL("GoWebMail", user.Email, secret)
otpURL := mfa.OTPAuthURL("GoWebMail", user.Email, secret)
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(map[string]string{
"qr_url": qr,
"otp_url": otpURL,
"secret": secret,
})
}
func (h *AuthHandler) MFASetupConfirm(w http.ResponseWriter, r *http.Request) {
userID := middleware.GetUserID(r)
var req struct {
Code string `json:"code"`
}
json.NewDecoder(r.Body).Decode(&req)
user, _ := h.db.GetUserByID(userID)
if user == nil || user.MFAPending == "" {
writeJSONError(w, http.StatusBadRequest, "no pending MFA setup")
return
}
if !mfa.Validate(user.MFAPending, req.Code) {
writeJSONError(w, http.StatusBadRequest, "invalid code — try again")
return
}
if err := h.db.EnableMFA(userID, user.MFAPending); err != nil {
writeJSONError(w, http.StatusInternalServerError, "failed to enable MFA")
return
}
h.db.WriteAudit(&userID, models.AuditMFAEnable, "", middleware.ClientIP(r), r.UserAgent())
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(map[string]bool{"ok": true})
}
func (h *AuthHandler) MFADisable(w http.ResponseWriter, r *http.Request) {
userID := middleware.GetUserID(r)
var req struct {
Code string `json:"code"`
}
json.NewDecoder(r.Body).Decode(&req)
user, _ := h.db.GetUserByID(userID)
if user == nil || !user.MFAEnabled {
writeJSONError(w, http.StatusBadRequest, "MFA not enabled")
return
}
if !mfa.Validate(user.MFASecret, req.Code) {
writeJSONError(w, http.StatusBadRequest, "invalid code")
return
}
h.db.DisableMFA(userID)
h.db.WriteAudit(&userID, models.AuditMFADisable, "", middleware.ClientIP(r), r.UserAgent())
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(map[string]bool{"ok": true})
}
// ---- Change password ----
func (h *AuthHandler) ChangePassword(w http.ResponseWriter, r *http.Request) {
userID := middleware.GetUserID(r)
var req struct {
CurrentPassword string `json:"current_password"`
NewPassword string `json:"new_password"`
}
json.NewDecoder(r.Body).Decode(&req)
user, _ := h.db.GetUserByID(userID)
if user == nil {
writeJSONError(w, http.StatusUnauthorized, "not authenticated")
return
}
if crypto.CheckPassword(req.CurrentPassword, user.PasswordHash) != nil {
writeJSONError(w, http.StatusBadRequest, "current password incorrect")
return
}
if len(req.NewPassword) < 8 {
writeJSONError(w, http.StatusBadRequest, "password must be at least 8 characters")
return
}
if err := h.db.UpdateUserPassword(userID, req.NewPassword); err != nil {
writeJSONError(w, http.StatusInternalServerError, "failed to update password")
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(map[string]bool{"ok": true})
}
// ---- Me ----
func (h *AuthHandler) Me(w http.ResponseWriter, r *http.Request) {
userID := middleware.GetUserID(r)
user, _ := h.db.GetUserByID(userID)
if user == nil {
writeJSONError(w, http.StatusUnauthorized, "not authenticated")
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(map[string]interface{}{
"id": user.ID,
"email": user.Email,
"username": user.Username,
"role": user.Role,
"mfa_enabled": user.MFAEnabled,
"compose_popup": user.ComposePopup,
"sync_interval": user.SyncInterval,
})
}
// ---- Gmail OAuth2 ----
func (h *AuthHandler) GmailConnect(w http.ResponseWriter, r *http.Request) {
if h.cfg.GoogleClientID == "" {
writeJSONError(w, http.StatusServiceUnavailable, "Google OAuth2 not configured.")
return
}
userID := middleware.GetUserID(r)
state := encodeOAuthState(userID, "gmail")
cfg := goauth.NewGmailConfig(h.cfg.GoogleClientID, h.cfg.GoogleClientSecret, h.cfg.GoogleRedirectURL)
url := cfg.AuthCodeURL(state, oauth2.AccessTypeOffline, oauth2.ApprovalForce)
http.Redirect(w, r, url, http.StatusFound)
}
func (h *AuthHandler) GmailCallback(w http.ResponseWriter, r *http.Request) {
state := r.URL.Query().Get("state")
code := r.URL.Query().Get("code")
userID, provider := decodeOAuthState(state)
if userID == 0 || provider != "gmail" {
http.Redirect(w, r, "/?error=oauth_state_mismatch", http.StatusFound)
return
}
oauthCfg := goauth.NewGmailConfig(h.cfg.GoogleClientID, h.cfg.GoogleClientSecret, h.cfg.GoogleRedirectURL)
token, err := oauthCfg.Exchange(r.Context(), code)
if err != nil {
http.Redirect(w, r, "/?error=oauth_exchange_failed", http.StatusFound)
return
}
userInfo, err := goauth.GetGoogleUserInfo(r.Context(), token, oauthCfg)
if err != nil {
http.Redirect(w, r, "/?error=userinfo_failed", http.StatusFound)
return
}
colors := []string{"#EA4335", "#4285F4", "#34A853", "#FBBC04", "#FF6D00", "#9C27B0"}
accounts, _ := h.db.ListAccountsByUser(userID)
color := colors[len(accounts)%len(colors)]
account := &models.EmailAccount{
UserID: userID, Provider: models.ProviderGmail,
EmailAddress: userInfo.Email, DisplayName: userInfo.Name,
AccessToken: token.AccessToken, RefreshToken: token.RefreshToken,
TokenExpiry: token.Expiry, Color: color, IsActive: true,
}
created, err := h.db.UpsertOAuthAccount(account)
if err != nil {
http.Redirect(w, r, "/?error=account_save_failed", http.StatusFound)
return
}
uid := userID
action := "gmail:" + userInfo.Email
if !created {
action = "gmail-reconnect:" + userInfo.Email
}
h.db.WriteAudit(&uid, models.AuditAccountAdd, action, middleware.ClientIP(r), r.UserAgent())
if h.syncer != nil {
h.syncer.TriggerReconcile()
}
http.Redirect(w, r, "/?connected=gmail", http.StatusFound)
}
// ---- Outlook OAuth2 ----
func (h *AuthHandler) OutlookConnect(w http.ResponseWriter, r *http.Request) {
if h.cfg.MicrosoftClientID == "" {
writeJSONError(w, http.StatusServiceUnavailable, "Microsoft OAuth2 not configured.")
return
}
userID := middleware.GetUserID(r)
state := encodeOAuthState(userID, "outlook")
cfg := goauth.NewOutlookConfig(h.cfg.MicrosoftClientID, h.cfg.MicrosoftClientSecret,
h.cfg.MicrosoftTenantID, h.cfg.MicrosoftRedirectURL)
log.Printf("[oauth:outlook] starting auth flow tenant=%s redirectURL=%s",
h.cfg.MicrosoftTenantID, h.cfg.MicrosoftRedirectURL)
// ApprovalForce + prompt=consent ensures Microsoft always returns a refresh_token.
url := cfg.AuthCodeURL(state, oauth2.AccessTypeOffline, oauth2.ApprovalForce,
oauth2.SetAuthURLParam("prompt", "consent"))
http.Redirect(w, r, url, http.StatusFound)
}
func (h *AuthHandler) OutlookCallback(w http.ResponseWriter, r *http.Request) {
state := r.URL.Query().Get("state")
code := r.URL.Query().Get("code")
// Microsoft returns ?error=...&error_description=... instead of ?code=...
// when the user denies consent or the app has misconfigured permissions.
if msErr := r.URL.Query().Get("error"); msErr != "" {
msDesc := r.URL.Query().Get("error_description")
log.Printf("[oauth:outlook] Microsoft returned error: %s — %s", msErr, msDesc)
w.Header().Set("Content-Type", "text/html; charset=utf-8")
w.WriteHeader(http.StatusBadGateway)
fmt.Fprintf(w, `<!DOCTYPE html><html><head><title>Outlook OAuth Error</title>
<style>body{font-family:monospace;background:#111;color:#eee;padding:40px;max-width:900px;margin:auto}
pre{background:#1e1e1e;padding:20px;border-radius:8px;white-space:pre-wrap;word-break:break-all;color:#f87171}
h2{color:#f87171}a{color:#6b8afd}li{margin:6px 0}</style></head><body>
<h2>Microsoft returned: %s</h2>
<pre>%s</pre>
<hr><p><strong>Most likely cause:</strong> the Azure app is missing the correct API permissions.</p>
<ul>
<li>In Azure portal → API Permissions → Add a permission</li>
<li>Click <strong>"APIs my organization uses"</strong> tab</li>
<li>Search: <strong>Office 365 Exchange Online</strong></li>
<li>Delegated permissions → add <code>IMAP.AccessAsUser.All</code> and <code>SMTP.Send</code></li>
<li>Then click <strong>Grant admin consent</strong></li>
<li>Do NOT use Microsoft Graph versions of these scopes</li>
</ul>
<p><a href="/">← Back to GoWebMail</a></p>
</body></html>`, html.EscapeString(msErr), html.EscapeString(msDesc))
return
}
if code == "" {
log.Printf("[oauth:outlook] callback received with no code and no error — possible state mismatch")
http.Redirect(w, r, "/?error=oauth_no_code", http.StatusFound)
return
}
userID, provider := decodeOAuthState(state)
if userID == 0 || provider != "outlook" {
http.Redirect(w, r, "/?error=oauth_state_mismatch", http.StatusFound)
return
}
oauthCfg := goauth.NewOutlookConfig(h.cfg.MicrosoftClientID, h.cfg.MicrosoftClientSecret,
h.cfg.MicrosoftTenantID, h.cfg.MicrosoftRedirectURL)
token, err := oauthCfg.Exchange(r.Context(), code)
if err != nil {
log.Printf("[oauth:outlook] token exchange failed (tenant=%s clientID=%s redirectURL=%s): %v",
h.cfg.MicrosoftTenantID, h.cfg.MicrosoftClientID, h.cfg.MicrosoftRedirectURL, err)
// Show the raw error in the browser so the user can diagnose the problem
// (redirect URI mismatch, wrong secret, wrong tenant, missing permissions, etc.)
w.Header().Set("Content-Type", "text/html; charset=utf-8")
w.WriteHeader(http.StatusBadGateway)
fmt.Fprintf(w, `<!DOCTYPE html><html><head><title>Outlook OAuth Error</title>
<style>body{font-family:monospace;background:#111;color:#eee;padding:40px;max-width:900px;margin:auto}
pre{background:#1e1e1e;padding:20px;border-radius:8px;overflow-x:auto;white-space:pre-wrap;word-break:break-all;color:#f87171}
h2{color:#f87171} a{color:#6b8afd}</style></head><body>
<h2>Outlook OAuth Token Exchange Failed</h2>
<p>Microsoft returned an error when exchanging the auth code for a token.</p>
<pre>%s</pre>
<hr>
<p><strong>Things to check:</strong></p>
<ul>
<li>Redirect URI in Azure must exactly match: <code>%s</code></li>
<li>Tenant ID in config: <code>%s</code> — must match your app's "Supported account types"</li>
<li>MICROSOFT_CLIENT_SECRET must be the <strong>Value</strong> column, not the Secret ID</li>
<li>In Azure API Permissions, IMAP/SMTP scopes must be from <strong>Office 365 Exchange Online</strong> (under "APIs my organization uses"), not Microsoft Graph</li>
<li>Admin consent must be granted (green checkmarks in API Permissions)</li>
</ul>
<p><a href="/">← Back to GoWebMail</a></p>
</body></html>`, html.EscapeString(err.Error()), h.cfg.MicrosoftRedirectURL, h.cfg.MicrosoftTenantID)
return
}
userInfo, err := goauth.GetMicrosoftUserInfo(r.Context(), token, oauthCfg)
if err != nil {
log.Printf("[oauth:outlook] userinfo fetch failed: %v", err)
http.Redirect(w, r, "/?error=userinfo_failed", http.StatusFound)
return
}
log.Printf("[oauth:outlook] auth successful for %s, getting IMAP token...", userInfo.Email())
// Exchange initial token for one scoped to https://outlook.office.com
// so IMAP auth succeeds (aud must be outlook.office.com not graph/live)
imapToken, err := goauth.ExchangeForIMAPToken(
r.Context(),
h.cfg.MicrosoftClientID, h.cfg.MicrosoftClientSecret,
h.cfg.MicrosoftTenantID, token.RefreshToken,
)
if err != nil {
log.Printf("[oauth:outlook] IMAP token exchange failed: %v — falling back to initial token", err)
imapToken = token
} else {
log.Printf("[oauth:outlook] IMAP token obtained, aud should be https://outlook.office.com")
if imapToken.RefreshToken == "" {
imapToken.RefreshToken = token.RefreshToken
}
}
accounts, _ := h.db.ListAccountsByUser(userID)
colors := []string{"#0078D4", "#EA4335", "#34A853", "#FBBC04", "#FF6D00", "#9C27B0"}
color := colors[len(accounts)%len(colors)]
account := &models.EmailAccount{
UserID: userID, Provider: models.ProviderOutlook,
EmailAddress: userInfo.Email(), DisplayName: userInfo.BestName(),
AccessToken: imapToken.AccessToken, RefreshToken: imapToken.RefreshToken,
TokenExpiry: imapToken.Expiry, Color: color, IsActive: true,
}
created, err := h.db.UpsertOAuthAccount(account)
if err != nil {
http.Redirect(w, r, "/?error=account_save_failed", http.StatusFound)
return
}
uid := userID
action := "outlook:" + userInfo.Email()
if !created {
action = "outlook-reconnect:" + userInfo.Email()
}
h.db.WriteAudit(&uid, models.AuditAccountAdd, action, middleware.ClientIP(r), r.UserAgent())
if h.syncer != nil {
h.syncer.TriggerReconcile()
}
http.Redirect(w, r, "/?connected=outlook", http.StatusFound)
}
// ---- Helpers ----
type oauthStatePayload struct {
UserID int64 `json:"u"`
Provider string `json:"p"`
Nonce string `json:"n"`
}
func encodeOAuthState(userID int64, provider string) string {
nonce := make([]byte, 16)
rand.Read(nonce)
payload := oauthStatePayload{UserID: userID, Provider: provider,
Nonce: base64.URLEncoding.EncodeToString(nonce)}
b, _ := json.Marshal(payload)
return base64.URLEncoding.EncodeToString(b)
}
func decodeOAuthState(state string) (int64, string) {
b, err := base64.URLEncoding.DecodeString(state)
if err != nil {
return 0, ""
}
var payload oauthStatePayload
if err := json.Unmarshal(b, &payload); err != nil {
return 0, ""
}
return payload.UserID, payload.Provider
}
func (h *AuthHandler) setSessionCookie(w http.ResponseWriter, token string) {
http.SetCookie(w, &http.Cookie{
Name: "gomail_session", Value: token, Path: "/",
MaxAge: 7 * 24 * 3600, Secure: h.cfg.SecureCookie,
HttpOnly: true, SameSite: http.SameSiteLaxMode,
})
}
func writeJSONError(w http.ResponseWriter, status int, msg string) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(status)
json.NewEncoder(w).Encode(map[string]string{"error": msg})
}
// ---- Profile Updates ----
func (h *AuthHandler) UpdateProfile(w http.ResponseWriter, r *http.Request) {
userID := middleware.GetUserID(r)
user, err := h.db.GetUserByID(userID)
if err != nil || user == nil {
writeJSONError(w, http.StatusUnauthorized, "not authenticated")
return
}
var req struct {
Field string `json:"field"` // "email" | "username"
Value string `json:"value"`
Password string `json:"password"` // current password required for confirmation
}
json.NewDecoder(r.Body).Decode(&req)
if req.Value == "" {
writeJSONError(w, http.StatusBadRequest, "value required")
return
}
if req.Password == "" {
writeJSONError(w, http.StatusBadRequest, "current password required to confirm profile changes")
return
}
if err := crypto.CheckPassword(req.Password, user.PasswordHash); err != nil {
writeJSONError(w, http.StatusForbidden, "incorrect password")
return
}
switch req.Field {
case "email":
// Check uniqueness
existing, _ := h.db.GetUserByEmail(req.Value)
if existing != nil && existing.ID != userID {
writeJSONError(w, http.StatusConflict, "email already in use")
return
}
if err := h.db.UpdateUserEmail(userID, req.Value); err != nil {
writeJSONError(w, http.StatusInternalServerError, "failed to update email")
return
}
case "username":
existing, _ := h.db.GetUserByUsername(req.Value)
if existing != nil && existing.ID != userID {
writeJSONError(w, http.StatusConflict, "username already in use")
return
}
if err := h.db.UpdateUserUsername(userID, req.Value); err != nil {
writeJSONError(w, http.StatusInternalServerError, "failed to update username")
return
}
default:
writeJSONError(w, http.StatusBadRequest, "field must be 'email' or 'username'")
return
}
ip := middleware.ClientIP(r)
h.db.WriteAudit(&userID, models.AuditUserUpdate, "profile update: "+req.Field, ip, r.UserAgent())
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(map[string]bool{"ok": true})
}
// ---- Per-User IP Rules ----
func (h *AuthHandler) GetUserIPRule(w http.ResponseWriter, r *http.Request) {
userID := middleware.GetUserID(r)
rule, err := h.db.GetUserIPRule(userID)
if err != nil {
writeJSONError(w, http.StatusInternalServerError, "db error")
return
}
if rule == nil {
rule = &db.UserIPRule{UserID: userID, Mode: "disabled", IPList: ""}
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(rule)
}
func (h *AuthHandler) SetUserIPRule(w http.ResponseWriter, r *http.Request) {
userID := middleware.GetUserID(r)
var req struct {
Mode string `json:"mode"` // "disabled" | "brute_skip" | "allow_only"
IPList string `json:"ip_list"` // comma-separated
}
json.NewDecoder(r.Body).Decode(&req)
validModes := map[string]bool{"disabled": true, "brute_skip": true, "allow_only": true}
if !validModes[req.Mode] {
writeJSONError(w, http.StatusBadRequest, "mode must be disabled, brute_skip, or allow_only")
return
}
// Validate IPs
for _, rawIP := range db.SplitIPList(req.IPList) {
if net.ParseIP(rawIP) == nil {
writeJSONError(w, http.StatusBadRequest, "invalid IP address: "+rawIP)
return
}
}
if req.Mode == "disabled" {
h.db.DeleteUserIPRule(userID)
} else {
if err := h.db.SetUserIPRule(userID, req.Mode, req.IPList); err != nil {
writeJSONError(w, http.StatusInternalServerError, "failed to save rule")
return
}
}
ip := middleware.ClientIP(r)
h.db.WriteAudit(&userID, models.AuditUserUpdate, "IP rule updated: "+req.Mode, ip, r.UserAgent())
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(map[string]bool{"ok": true})
}
// ---- Outlook Personal (Graph API) OAuth2 ----
func (h *AuthHandler) OutlookPersonalConnect(w http.ResponseWriter, r *http.Request) {
if h.cfg.MicrosoftClientID == "" {
writeJSONError(w, http.StatusServiceUnavailable, "Microsoft OAuth2 not configured.")
return
}
redirectURL := h.cfg.BaseURL + "/auth/outlook-personal/callback"
userID := middleware.GetUserID(r)
state := encodeOAuthState(userID, "outlook_personal")
cfg := goauth.NewOutlookPersonalConfig(h.cfg.MicrosoftClientID, h.cfg.MicrosoftClientSecret,
h.cfg.MicrosoftTenantID, redirectURL)
authURL := cfg.AuthCodeURL(state, oauth2.AccessTypeOffline, oauth2.ApprovalForce,
oauth2.SetAuthURLParam("prompt", "consent"))
log.Printf("[oauth:outlook-personal] starting auth flow tenant=%s redirect=%s",
h.cfg.MicrosoftTenantID, redirectURL)
http.Redirect(w, r, authURL, http.StatusFound)
}
func (h *AuthHandler) OutlookPersonalCallback(w http.ResponseWriter, r *http.Request) {
state := r.URL.Query().Get("state")
code := r.URL.Query().Get("code")
if msErr := r.URL.Query().Get("error"); msErr != "" {
msDesc := r.URL.Query().Get("error_description")
log.Printf("[oauth:outlook-personal] error: %s — %s", msErr, msDesc)
w.Header().Set("Content-Type", "text/html; charset=utf-8")
w.WriteHeader(http.StatusBadGateway)
fmt.Fprintf(w, `<!DOCTYPE html><html><head><title>Outlook OAuth Error</title>
<style>body{font-family:monospace;background:#111;color:#eee;padding:40px;max-width:900px;margin:auto}
pre{background:#1e1e1e;padding:20px;border-radius:8px;white-space:pre-wrap;color:#f87171}
h2{color:#f87171}a{color:#6b8afd}</style></head><body>
<h2>Microsoft returned: %s</h2><pre>%s</pre>
<p>Make sure your Azure app has these Microsoft Graph permissions:<br>
Mail.ReadWrite, Mail.Send, User.Read, openid, email, offline_access</p>
<p><a href="/">← Back</a></p></body></html>`,
html.EscapeString(msErr), html.EscapeString(msDesc))
return
}
if code == "" {
http.Redirect(w, r, "/?error=oauth_no_code", http.StatusFound)
return
}
userID, provider := decodeOAuthState(state)
if userID == 0 || provider != "outlook_personal" {
http.Redirect(w, r, "/?error=oauth_state_mismatch", http.StatusFound)
return
}
oauthCfg := goauth.NewOutlookPersonalConfig(h.cfg.MicrosoftClientID, h.cfg.MicrosoftClientSecret,
h.cfg.MicrosoftTenantID, h.cfg.BaseURL+"/auth/outlook-personal/callback")
token, err := oauthCfg.Exchange(r.Context(), code)
if err != nil {
log.Printf("[oauth:outlook-personal] token exchange failed: %v", err)
http.Redirect(w, r, "/?error=oauth_exchange_failed", http.StatusFound)
return
}
// Get user info from ID token
userInfo, err := goauth.GetMicrosoftUserInfo(r.Context(), token, oauthCfg)
if err != nil {
log.Printf("[oauth:outlook-personal] userinfo failed: %v", err)
http.Redirect(w, r, "/?error=userinfo_failed", http.StatusFound)
return
}
// Verify it's a JWT (Graph token for personal accounts should be a JWT)
tokenParts := len(strings.Split(token.AccessToken, "."))
log.Printf("[oauth:outlook-personal] auth successful for %s, token parts: %d",
userInfo.Email(), tokenParts)
accounts, _ := h.db.ListAccountsByUser(userID)
colors := []string{"#0078D4", "#EA4335", "#34A853", "#FBBC04", "#FF6D00", "#9C27B0"}
color := colors[len(accounts)%len(colors)]
account := &models.EmailAccount{
UserID: userID, Provider: models.ProviderOutlookPersonal,
EmailAddress: userInfo.Email(), DisplayName: userInfo.BestName(),
AccessToken: token.AccessToken, RefreshToken: token.RefreshToken,
TokenExpiry: token.Expiry, Color: color, IsActive: true,
}
created, err := h.db.UpsertOAuthAccount(account)
if err != nil {
http.Redirect(w, r, "/?error=account_save_failed", http.StatusFound)
return
}
uid := userID
action := "outlook-personal:" + userInfo.Email()
if !created {
action = "outlook-personal-reconnect:" + userInfo.Email()
}
h.db.WriteAudit(&uid, models.AuditAccountAdd, action, middleware.ClientIP(r), r.UserAgent())
if h.syncer != nil {
h.syncer.TriggerReconcile()
}
http.Redirect(w, r, "/?connected=outlook_personal", http.StatusFound)
}