Move images, and add SSL page

doc/source/index.rst

@@ -15,6 +15,7 @@ Contents:
     themes
     commands
     dev/index
+    misc/index
 
 ..
     configure

doc/source/misc/index.rst

@@ -0,0 +1,22 @@
+Miscellaneous topics
+====================
+
+Contents:
+
+.. toctree::
+    :maxdepth: 2
+
+    ssl
+
+
+..
+    configure
+    ssl
+    usage
+    themes
+    keys
+    plugins
+    misc
+    xep
+    dev
+

doc/source/misc/ssl.rst

@@ -0,0 +1,60 @@
+SSL Management
+==============
+
+Starting from version 0.7.5, poezio offers some options to check the validity
+of a X.509 certificate.
+
+TOFU
+----
+
+The default handling method is the `TOFU/TUFU`_
+method. At your first connection, poezio will save the hash of the certificate
+received, and will compare the received one and the first one for the next
+connections.
+
+
+If you are paranoid (or run poezio for the first time in an unsafe
+environment), you can set the _certificate_ value of your config file yourself
+(the hash, not colon-separated).
+
+
+If the certificate is not the same, poezio will show an error message and wait
+for confirmation:
+
+.. figure:: ../images/ssl_warning.png
+    :alt: Warning message
+
+If you press y, the change is validated an poezio will match the next certs
+with the accepted one.
+
+If you press n, you will get the confirmation that the change has been
+refused, and you will be disconnected.
+
+CA-Based
+--------
+
+If you are connecting to a large server that has several front-facing
+endpoints, you might be bothered by having to validate the change each time,
+and you may want to check only if it the same authority delivered the
+certificate.
+
+You can then set the *ca_cert_path* option to the path of a file containing
+the validation chain in `PEM format`_ ; those certificates are usually in
+/usr/share/ca-certificates/ but it may vary depending of your distribution.
+
+
+If the authority does not match when connecting, you should be disconnected.
+
+None
+----
+
+If you do not want to bother with certificate validation at all (which can be
+the case when you run poezio on the same computer as your jabber server), you
+can set the *ignore_certificate* value to true, and let the *ca_cert_path*
+option empty (or even remove it).
+
+.. warning:: Only do this if you know what you are doing, or you will be open
+            to Man in The Middle attacks!
+
+.. _TOFU/TUFU: https://en.wikipedia.org/wiki/User:Dotdotike/Trust_Upon_First_Use
+.. _PEM format: https://tools.ietf.org/html/rfc1422.html

doc/source/themes.rst

@@ -69,7 +69,7 @@ text white on black by default, a fg_color of -1 is white, and a bg_color
 of -1 is black). If it’s between 0 and 256 it represents one of the colors
 on the image:
 
-.. figure:: ../images/theme_256_colors.png
+.. figure:: ./images/theme_256_colors.png
     :alt: The list of all 256 colors
 
     The list of all 256 colors