[IMP] POS: add info for iOS devices

task-3388561

closes #5761

Signed-off-by: Xavier Platteau (xpl) <xpl@odoo.com>

content/applications/sales/point_of_sale/configuration/epos_ssc.rst

@@ -176,13 +176,83 @@ it into your browser.
 
    .. tab:: Mac OS
 
-      To secure the connection on a Mac:
+      On Mac OS, you can secure the connection for all browsers by following these steps:
 
       #. open Safari and navigate to your printer's IP address. Doing so leads to a warning page;
       #. on the warning page,  go to :menuselection:`Show Details --> visit this website --> Visit
          Website`, validate;
       #. reboot the printer so you can use it with any other browser.
 
+      To generate and export an SSL certificate and send it to IOS devices, open **Google Chrome**
+      or **Mozilla Firefox**. Then,
+
+      .. tabs::
+
+         .. tab:: Generate a self-signed certificate
+
+            Navigate to the ePOS' IP address (e.g., `https://192.168.1.25`) and force the
+            connection by clicking :guilabel:`Advanced` and :guilabel:`Proceed to [IP address]
+            (unsafe)`.
+
+            .. figure:: epos_ssc/browser-https-insecure.png
+               :scale: 75%
+               :alt: Warning page about the connection privacy on Google Chrome
+
+               Warning page on Google Chrome, Windows 10
+
+            Then, sign in using your printer credentials to access the ePOS printer settings. To
+            sign in, enter `epson` in the :guilabel:`ID` field and your printer serial number in the
+            :guilabel:`Password` field.
+
+            Click :guilabel:`Certificate List` in the :guilabel:`Authentication` section, and click
+            :guilabel:`create` to generate a new **Self-Signed Certificate**. The :guilabel:`Common
+            Name` should be automatically filled out. If not, fill it in with the printer IP address
+            number. Select the years the certificate will be valid in the :guilabel:`Validity
+            Period` field, click :guilabel:`Create`, and :guilabel:`Reset` or manually restart the
+            printer.
+
+            The self-signed certificate is generated. Reload the page and click :guilabel:`SSL/TLS`
+            in the :guilabel:`Security` section to ensure **Selfsigned Certificate** is correctly
+            selected in the :guilabel:`Server Certificate` section.
+
+         .. tab:: Export a self-signed certificate
+
+            The export process is heavily dependent on the :abbr:`OS (Operating System)` and the
+            browser. Start by accessing your ePOS printer settings on your web browser by navigating
+            to its IP address (e.g., `https://192.168.1.25`). Then, force the connection as
+            explained in the **Generate a self-signed certificate tab**.
+
+            If you are using **Google Chrome**,
+
+            #. click :guilabel:`Not secure` next to the search bar, and :guilabel:`Certificate is
+               not valid`;
+
+               .. image:: epos_ssc/browser-warning.png
+                  :alt: Connection to the printer not secure button in Google Chrome
+
+            #. go to the :guilabel:`Details` tab and click :guilabel:`Export`;
+            #. add `.crt` at the end of the file name to ensure it has the correct extension;
+            #. select :guilabel:`Base64-encoded ASCII, single certificate`, at the bottom of the
+               pop-up window;
+            #. save, and the certificate is exported.
+
+            .. warning::
+               Make sure that the certificate ends with the extension `.crt`. Otherwise, some
+               browsers might not find the file during the import process.
+
+            If you are using **Mozilla Firefox**,
+
+            #. click the **lock-shaped** icon on the left of the address bar;
+            #. go to :menuselection:`Connection not secure --> More information --> Security tab
+               --> View certificate`;
+
+               .. image:: epos_ssc/mozilla-not-secure.png
+                  :alt: Connection is not secure button in Mozilla Firefox
+
+            #. scroll down to the :guilabel:`Miscellaneous` section;
+            #. click :guilabel:`PEM (cert)` in the :guilabel:`Download` section;
+            #. save, and the certificate is exported.
+
    .. tab:: Android OS
 
       To import an SSL certificate into an Android device, first create and export it from a
@@ -197,8 +267,33 @@ it into your browser.
          The specific steps for installing a certificate may vary depending on the version of
          Android and the device manufacturer.
 
-.. important::
+   .. tab:: iOS
+
+      To import an SSL certificate into an iOS device, first create and export it from a computer.
+      Then, transfer the `.crt` file to the device using email, Bluetooth, or any file-sharing
+      service.
+
+      Downloading this file triggers a warning pop-up window. Click :guilabel:`Allow` to download
+      the configuration profile, and close the second pop-up window. Then,
+
+      #. go to the **Settings App** on the iOS device;
+      #. click :guilabel:`Profile Downloaded` under the user's details box;
+      #. locate the downloaded `.crt` file and select it;
+      #. click :guilabel:`Install` on the top right of the screen;
+      #. if a passcode is set on the device, enter the passcode;
+      #. click :guilabel:`Install` on the top right of the certificate warning screen and the pop-up
+         window;
+      #. click :guilabel:`Done`.
 
+      .. image:: epos_ssc/ssl-ios-verified.png
+
+      The certificate is installed, but it still needs to be authenticated. To do so,
+
+      #. go to :menuselection:`Settings --> General --> About > Certificate Trust Settings`;
+      #. enable the installed certificate using the **slide button**;
+      #. click :guilabel:`Continue` on the pop-up window.
+
+.. important::
    - If you need to export SSL certificates from an operating system or web browser that has not
      been mentioned, search for `export SSL certificate` + `the name of your browser or operating
      system` in your preferred search engine.