From 4c06cc5df2b6cdea99dbac1da827608904a88eb9 Mon Sep 17 00:00:00 2001
From: nemanja <nemanja@micropsi-industries.com>
Date: Fri, 1 Sep 2017 15:44:19 +0200
Subject: [PATCH 1/2] adding webagg.address parameter to rcParams

---
 lib/matplotlib/backends/backend_webagg.py |  9 +++++++--
 lib/matplotlib/rcsetup.py                 | 10 ++++++++++
 lib/matplotlib/style/core.py              |  2 +-
 matplotlibrc.template                     |  3 +++
 4 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/lib/matplotlib/backends/backend_webagg.py b/lib/matplotlib/backends/backend_webagg.py
index e39bf2cb2bab..8b92e16311ba 100644
--- a/lib/matplotlib/backends/backend_webagg.py
+++ b/lib/matplotlib/backends/backend_webagg.py
@@ -229,7 +229,7 @@ def __init__(self, url_prefix=''):
             template_path=core.FigureManagerWebAgg.get_static_file_path())
 
     @classmethod
-    def initialize(cls, url_prefix='', port=None):
+    def initialize(cls, url_prefix='', port=None, address=None):
         if cls.initialized:
             return
 
@@ -253,10 +253,15 @@ def random_ports(port, n):
                 yield port + random.randint(-2 * n, 2 * n)
 
         success = None
+
+        if address is None:
+            cls.address = rcParams['webagg.address']
+        else:
+            cls.address = address
         cls.port = rcParams['webagg.port']
         for port in random_ports(cls.port, rcParams['webagg.port_retries']):
             try:
-                app.listen(port)
+                app.listen(port, cls.address)
             except socket.error as e:
                 if e.errno != errno.EADDRINUSE:
                     raise
diff --git a/lib/matplotlib/rcsetup.py b/lib/matplotlib/rcsetup.py
index ae60b108f541..429c778a21be 100644
--- a/lib/matplotlib/rcsetup.py
+++ b/lib/matplotlib/rcsetup.py
@@ -885,6 +885,15 @@ def validate_animation_writer_path(p):
         modules["matplotlib.animation"].writers.set_dirty()
     return p
 
+def validate_webagg_address(s):
+    if s is not None:
+        import socket
+        try:
+            socket.inet_aton(s)
+        except socket.error as e:
+            raise ValueError("'webagg.address' is not a valid IP address")
+    return s
+
 # A validator dedicated to the named line styles, based on the items in
 # ls_mapper, and a list of possible strings read from Line2D.set_linestyle
 _validate_named_linestyle = ValidateInStrings('linestyle',
@@ -943,6 +952,7 @@ def _validate_linestyle(ls):
     'backend.qt4':       ['PyQt4', validate_qt4],
     'backend.qt5':       ['PyQt5', validate_qt5],
     'webagg.port':       [8988, validate_int],
+    'webagg.address':    ['127.0.0.1', validate_webagg_address],
     'webagg.open_in_browser': [True, validate_bool],
     'webagg.port_retries': [50, validate_int],
     'nbagg.transparent':       [True, validate_bool],
diff --git a/lib/matplotlib/style/core.py b/lib/matplotlib/style/core.py
index 45ac249bc07b..0d5fff2b7010 100644
--- a/lib/matplotlib/style/core.py
+++ b/lib/matplotlib/style/core.py
@@ -37,7 +37,7 @@
 
 # A list of rcParams that should not be applied from styles
 STYLE_BLACKLIST = {
-    'interactive', 'backend', 'backend.qt4', 'webagg.port',
+    'interactive', 'backend', 'backend.qt4', 'webagg.port', 'webagg.address',
     'webagg.port_retries', 'webagg.open_in_browser', 'backend_fallback',
     'toolbar', 'timezone', 'datapath', 'figure.max_open_warning',
     'savefig.directory', 'tk.window_focus', 'docstring.hardcopy'}
diff --git a/matplotlibrc.template b/matplotlibrc.template
index 2a6e8b273fb5..fd592af89558 100644
--- a/matplotlibrc.template
+++ b/matplotlibrc.template
@@ -53,6 +53,9 @@ backend      : $TEMPLATE_BACKEND
 # The port to use for the web server in the WebAgg backend.
 # webagg.port : 8888
 
+# The address on which the WebAgg web server should be reachable
+# webagg.address : 127.0.0.1
+
 # If webagg.port is unavailable, a number of other random ports will
 # be tried until one that is available is found.
 # webagg.port_retries : 50

From 5b8c4c13c7c3e395bd38140086e9049f0975115f Mon Sep 17 00:00:00 2001
From: nemanja <nemanja@micropsi-industries.com>
Date: Wed, 6 Sep 2017 10:29:15 +0200
Subject: [PATCH 2/2] adding webagg.address parameter to rcParams

---
 lib/matplotlib/rcsetup.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/matplotlib/rcsetup.py b/lib/matplotlib/rcsetup.py
index 429c778a21be..5ef97c079235 100644
--- a/lib/matplotlib/rcsetup.py
+++ b/lib/matplotlib/rcsetup.py
@@ -892,7 +892,8 @@ def validate_webagg_address(s):
             socket.inet_aton(s)
         except socket.error as e:
             raise ValueError("'webagg.address' is not a valid IP address")
-    return s
+        return s
+    raise ValueError("'webagg.address' is not a valid IP address")
 
 # A validator dedicated to the named line styles, based on the items in
 # ls_mapper, and a list of possible strings read from Line2D.set_linestyle