From a23a068d40b14ffe84efa054b55e1fe5b73faba4 Mon Sep 17 00:00:00 2001
From: jvanbraekel <29703119+jvanbraekel@users.noreply.github.com>
Date: Tue, 23 Jul 2019 15:52:21 +0200
Subject: [PATCH 1/3] Add utf-8 encoding in latex log opening

By default, open use ascii encoding leading to crash when non ascii caracters are present . Fix it by enforcing UTF-8  encoding
---
 gluon/contrib/markmin/markmin2pdf.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gluon/contrib/markmin/markmin2pdf.py b/gluon/contrib/markmin/markmin2pdf.py
index 7e3c2eec..299cb1dc 100644
--- a/gluon/contrib/markmin/markmin2pdf.py
+++ b/gluon/contrib/markmin/markmin2pdf.py
@@ -80,7 +80,7 @@ def latex2pdf(latex, pdflatex='pdflatex', passes=3):
             outfile.close()
         re_errors = re.compile('^\!(.*)$', re.M)
         re_warnings = re.compile('^LaTeX Warning\:(.*)$', re.M)
-        flog = open(logname)
+        flog = open(logname,encoding="utf-8")
         try:
             loglines = flog.read()
         finally:

From 251314ceb89ed63c6fd7a84f76071d26432bf8da Mon Sep 17 00:00:00 2001
From: jvanbraekel <29703119+jvanbraekel@users.noreply.github.com>
Date: Wed, 24 Jul 2019 09:43:03 +0200
Subject: [PATCH 2/3] Only return get_vars after a failing login

Since the redirect is a GET action, there is no reason to return post vars from the failing attempt.
---
 gluon/tools.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/gluon/tools.py b/gluon/tools.py
index aefebbc5..e6421b88 100644
--- a/gluon/tools.py
+++ b/gluon/tools.py
@@ -2638,9 +2638,7 @@ class Auth(AuthAPI):
                         # invalid login
                         session.flash = specific_error if self.settings.login_specify_error else self.messages.invalid_login
                         callback(onfail, None)
-                        if 'password' in request.post_vars:
-                            del request.post_vars['password']
-                        redirect(self.url(args=request.args, vars=request.vars),client_side=settings.client_side)
+                        redirect(self.url(args=request.args, vars=request.get_vars),client_side=settings.client_side)
 
             else:  # use a central authentication server
                 cas = settings.login_form

From 37d1fca32c9ab5571ef29401405d0f479f413a11 Mon Sep 17 00:00:00 2001
From: jvanbraekel <29703119+jvanbraekel@users.noreply.github.com>
Date: Thu, 25 Jul 2019 11:28:37 +0200
Subject: [PATCH 3/3] Enable greek symbols support

Pakage was missing form the template, leading to errors when greeks characters were used
---
 gluon/contrib/markmin/markmin2latex.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gluon/contrib/markmin/markmin2latex.py b/gluon/contrib/markmin/markmin2latex.py
index 8f37e8bb..643e83d5 100755
--- a/gluon/contrib/markmin/markmin2latex.py
+++ b/gluon/contrib/markmin/markmin2latex.py
@@ -237,6 +237,7 @@ WRAPPER = """
 \\usepackage{graphicx}
 \\usepackage{grffile}
 \\usepackage[utf8x]{inputenc}
+\\usepackage{textgreek}
 \\definecolor{lg}{rgb}{0.9,0.9,0.9}
 \\definecolor{dg}{rgb}{0.3,0.3,0.3}
 \\def\\ft{\\small\\tt}