+────────────────────────────────────────
+Rejoindre la réunion ${APP_NAME}
+
+${url}${telephonyBlock}
+────────────────────────────────────────`;
+
+ return { url, message };
+}
+
+module.exports = { buildMeetingMessage };
diff --git a/src/addons/outlook/src/common/polling.js b/src/addons/outlook/src/common/polling.js
new file mode 100644
index 00000000..c606b379
--- /dev/null
+++ b/src/addons/outlook/src/common/polling.js
@@ -0,0 +1,47 @@
+const { pollSession } = require("./api");
+
+const POLLING_INTERVAL_MS = 1000;
+const POLLING_TIMEOUT_MS = 3 * 60 * 1000;
+const POLLING_MAX_ATTEMPTS = POLLING_TIMEOUT_MS / POLLING_INTERVAL_MS;
+
+function isPollAuthenticated(sessionData) {
+ return sessionData.state === "authenticated" && sessionData.access_token;
+}
+
+function startPolling(csrfToken, { onSuccess, onTimeout, onError }) {
+ let pollCount = 0;
+ let timeoutId = null;
+ let cancelled = false;
+
+ const poll = () => {
+ if (pollCount++ >= POLLING_MAX_ATTEMPTS) {
+ onTimeout?.();
+ return;
+ }
+
+ pollSession(csrfToken)
+ .then((sessionData) => {
+ if (cancelled) return;
+ if (isPollAuthenticated(sessionData)) {
+ onSuccess?.(sessionData);
+ return;
+ }
+ timeoutId = setTimeout(poll, POLLING_INTERVAL_MS);
+ })
+ .catch((err) => {
+ if (cancelled) return;
+ onError?.(err);
+ });
+ };
+
+ poll();
+
+ return () => {
+ cancelled = true;
+ if (timeoutId) clearTimeout(timeoutId);
+ };
+}
+
+module.exports = {
+ startPolling,
+};
diff --git a/src/addons/outlook/src/common/session.js b/src/addons/outlook/src/common/session.js
new file mode 100644
index 00000000..5d5a6505
--- /dev/null
+++ b/src/addons/outlook/src/common/session.js
@@ -0,0 +1,104 @@
+const { isOfficeReady } = require("./helpers");
+
+const SESSION_KEY = "meetSession";
+
+// DEV NOTE:
+// Office.context.roamingSettings persists data in the user's mailbox and
+// synchronizes it via Exchange across all Outlook clients (desktop, web, mobile)
+// where the user signs in. This means anything stored here (including tokens)
+// leaves the local device boundary and is replicated across environments.
+//
+// Microsoft guidance explicitly advises NOT storing secrets (e.g., OAuth access
+// tokens, refresh tokens, or other sensitive credentials) in roamingSettings,
+// as it is not a secure storage mechanism and lacks OS-level protections.
+//
+// That said, for the current alpha version we accept this trade-off for simplicity,
+// with the expectation that a more secure approach (e.g., in-memory tokens) will replace this.
+function saveSession(data) {
+ if (!isOfficeReady()) {
+ return Promise.reject(new Error("Office not ready"));
+ }
+
+ if (!data || !data.access_token) {
+ return Promise.reject(new Error("Missing access_token"));
+ }
+
+ const expiresInSeconds = Number(data.expires_in);
+ const expiresAt =
+ Number.isFinite(expiresInSeconds) && expiresInSeconds > 0
+ ? new Date(Date.now() + expiresInSeconds * 1000).toISOString()
+ : null;
+
+ const payload = JSON.stringify({
+ ...data,
+ expiresAt,
+ savedAt: new Date().toISOString(),
+ });
+
+ return new Promise((resolve, reject) => {
+ const rs = Office.context.roamingSettings;
+ rs.set(SESSION_KEY, payload);
+ rs.saveAsync((result) => {
+ if (result.status === Office.AsyncResultStatus.Succeeded) {
+ resolve();
+ } else {
+ reject(new Error(result.error?.message || "saveAsync failed"));
+ }
+ });
+ });
+}
+
+function loadSession() {
+ if (!isOfficeReady()) {
+ return null;
+ }
+
+ let session = null;
+ try {
+ const stored = Office.context.roamingSettings.get(SESSION_KEY);
+ if (stored) session = JSON.parse(stored);
+ } catch (e) {
+ clearSession();
+ return null;
+ }
+
+ if (!session) return null;
+
+ // Fail closed if expiry is missing — backend is expected to send expires_in.
+ if (!session.expiresAt) {
+ clearSession();
+ return null;
+ }
+
+ const expiresTs = Date.parse(session.expiresAt);
+ if (!Number.isFinite(expiresTs) || Date.now() >= expiresTs) {
+ clearSession();
+ return null;
+ }
+
+ return session;
+}
+
+function clearSession() {
+ if (!isOfficeReady()) {
+ return Promise.resolve();
+ }
+
+ return new Promise((resolve) => {
+ try {
+ const rs = Office.context.roamingSettings;
+ rs.remove(SESSION_KEY);
+ rs.saveAsync((result) => {
+ resolve();
+ });
+ } catch (e) {
+ resolve();
+ }
+ });
+}
+
+module.exports = {
+ saveSession,
+ loadSession,
+ clearSession,
+};
diff --git a/src/addons/outlook/src/common/transitDialog.js b/src/addons/outlook/src/common/transitDialog.js
new file mode 100644
index 00000000..5595713a
--- /dev/null
+++ b/src/addons/outlook/src/common/transitDialog.js
@@ -0,0 +1,43 @@
+const { URLS } = require("./urls");
+
+const DIALOG_SIGNALS = {
+ ready: "ready",
+ done: "done",
+};
+
+const DIALOG_HEIGHT = 60;
+const DIALOG_WIDTH = 50;
+
+function openTransitDialog(transitToken, { onCancel, onError }) {
+ Office.context.ui.displayDialogAsync(
+ URLS.transitDialog,
+ { height: DIALOG_HEIGHT, width: DIALOG_WIDTH, displayInIframe: false },
+ (asyncResult) => {
+ if (asyncResult.status === Office.AsyncResultStatus.Failed) {
+ onError?.(asyncResult.error);
+ return;
+ }
+
+ const dialog = asyncResult.value;
+
+ dialog.addEventHandler(Office.EventType.DialogMessageReceived, (arg) => {
+ if (arg.message === DIALOG_SIGNALS.ready) {
+ dialog.messageChild(transitToken);
+ return;
+ }
+ if (arg.message === DIALOG_SIGNALS.done) {
+ return;
+ }
+ onCancel?.();
+ dialog.close();
+ });
+
+ return dialog;
+ }
+ );
+}
+
+module.exports = {
+ openTransitDialog,
+ DIALOG_SIGNALS,
+};
diff --git a/src/addons/outlook/src/common/transitToken.js b/src/addons/outlook/src/common/transitToken.js
new file mode 100644
index 00000000..39d655b5
--- /dev/null
+++ b/src/addons/outlook/src/common/transitToken.js
@@ -0,0 +1,18 @@
+const TRANSIT_TOKEN_KEY = "transitToken";
+
+function save(token) {
+ sessionStorage.setItem(TRANSIT_TOKEN_KEY, token);
+}
+
+function consume() {
+ try {
+ const token = sessionStorage.getItem(TRANSIT_TOKEN_KEY);
+ sessionStorage.removeItem(TRANSIT_TOKEN_KEY);
+ return token;
+ } catch (err) {
+ console.error("Failed to read transit token:", err);
+ return null;
+ }
+}
+
+module.exports = { save, consume };
diff --git a/src/addons/outlook/src/common/urls.js b/src/addons/outlook/src/common/urls.js
new file mode 100644
index 00000000..17d0a37e
--- /dev/null
+++ b/src/addons/outlook/src/common/urls.js
@@ -0,0 +1,15 @@
+const { BASE_URL } = require("./index");
+
+const ADDONS_BASE_URL = `${BASE_URL}/api/v1.0/addons/sessions`;
+
+const URLS = {
+ authenticate: `${BASE_URL}/api/v1.0/authenticate/`,
+ successPage: `${BASE_URL}/addons/outlook/success.html`,
+ transitDialog: `${BASE_URL}/addons/outlook/transit.html`,
+ init: `${ADDONS_BASE_URL}/init/`,
+ poll: `${ADDONS_BASE_URL}/poll/`,
+ exchange: `${ADDONS_BASE_URL}/exchange/`,
+ rooms: `${BASE_URL}/external-api/v1.0/rooms/`,
+};
+
+module.exports = { URLS };
diff --git a/src/addons/outlook/src/styles/spinner.css b/src/addons/outlook/src/styles/spinner.css
new file mode 100644
index 00000000..dafb19e9
--- /dev/null
+++ b/src/addons/outlook/src/styles/spinner.css
@@ -0,0 +1,81 @@
+html, body {
+ margin: 0;
+ padding: 0;
+ height: 100%;
+}
+
+body {
+ display: flex;
+ align-items: center;
+ justify-content: center;
+ font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
+}
+
+#sideload-msg {
+ display: none;
+}
+
+#status {
+ display: none;
+}
+
+.spinner-container {
+ display: inline-flex;
+ align-items: center;
+ justify-content: center;
+ width: 56px;
+ height: 56px;
+}
+
+.spinner-svg {
+ width: 56px;
+ height: 56px;
+}
+
+/* Background arc (light gray ring) */
+.spinner-track {
+ stroke: #E5E7EB; /* primary.100 equivalent */
+ fill: none;
+ stroke-width: 3;
+ stroke-linecap: round;
+}
+
+/* Foreground rotating arc */
+.spinner-arc {
+ stroke: #000091; /* primary.800 equivalent */
+ fill: none;
+ stroke-width: 3;
+ stroke-linecap: round;
+ /* circumference = 2 * PI * r where r = 11 -> ~69.115 */
+ /* show 30% -> dashoffset = c - 0.3 * c = ~48.38 */
+ stroke-dasharray: 69.115 69.115;
+ stroke-dashoffset: 48.38;
+ transform-origin: center;
+ animation: spinner-rotate 1s ease-in-out infinite;
+}
+
+@keyframes spinner-rotate {
+ 0% {
+ transform: rotate(0deg);
+ }
+ 100% {
+ transform: rotate(360deg);
+ }
+}
+
+/* Hourglass fallback for reduced motion */
+.spinner-fallback {
+ display: none;
+ color: #000091;
+}
+
+@media (prefers-reduced-motion: reduce) {
+ .spinner-svg {
+ display: none;
+ }
+ .spinner-fallback {
+ display: inline-flex;
+ align-items: center;
+ justify-content: center;
+ }
+}
diff --git a/src/addons/outlook/src/success/success.html b/src/addons/outlook/src/success/success.html
new file mode 100644
index 00000000..2ac114b3
--- /dev/null
+++ b/src/addons/outlook/src/success/success.html
@@ -0,0 +1,44 @@
+
+
+
+
+
+
+ Chargement...
+