euscanwww: Added ansi to html helper

Signed-off-by: volpino <fox91@anche.no>

euscanwww/djeuscan/templates/euscan/package.html

@@ -160,7 +160,7 @@
   <dd>
     <p>Date: {{ log.datetime }}
     <pre class="log">
-      {{ log.result }}
+      {{ log.result|ansi_to_html|safe }}
     </pre>
   </dd>
   {% endif %}

euscanwww/djeuscan/templatetags/djeuscan_helpers.py

@@ -3,8 +3,11 @@ from django.conf import settings
 
 from euscan.version import is_version_type_stable, get_version_type
 
+from djeuscan.utils import plaintext2html
+
 register = template.Library()
 
+
 @register.inclusion_tag('euscan/_packages.html', takes_context=True)
 def packages(context, pkgs):
     context['packages'] = pkgs
@@ -66,3 +69,8 @@ def is_stable(version_type):
 @register.filter
 def version_type(version):
     return get_version_type(version)
+
+
+@register.filter
+def ansi_to_html(text):
+    return plaintext2html(text)

euscanwww/djeuscan/utils.py

@@ -0,0 +1,89 @@
+import re
+import cgi
+
+colorcodes = {
+    'bold': ('\033[1m', '\033[22m'),
+    'cyan': ('\033[36m', '\033[39m'),
+    'blue': ('\033[34m', '\033[39m'),
+    'red': ('\033[31m', '\033[39m'),
+    'magenta': ('\033[35m', '\033[39m'),
+    'green': ('\033[32m', '\033[39m'),
+    'underline': ('\033[4m', '\033[24m'),
+}
+
+
+def recolor(color, text):
+    regexp = "(?:%s)(.*?)(?:%s)" % colorcodes[color]
+    regexp = regexp.replace('[', r'\[')
+    return re.sub(
+        regexp, r'''<span style="color: %s">\1</span>''' % color, text
+    )
+
+
+def bold(text):
+    regexp = "(?:%s)(.*?)(?:%s)" % colorcodes['bold']
+    regexp = regexp.replace('[', r'\[')
+    return re.sub(regexp, r'<span style="font-weight:bold">\1</span>', text)
+
+
+def underline(text):
+    regexp = "(?:%s)(.*?)(?:%s)" % colorcodes['underline']
+    regexp = regexp.replace('[', r'\[')
+    return re.sub(
+        regexp, r'<span style="text-decoration: underline">\1</span>', text
+    )
+
+
+def removebells(text):
+    return text.replace('\07', '')
+
+
+def removebackspaces(text):
+    backspace_or_eol = r'(.\010)|(\033\[K)'
+    n = 1
+    while n > 0:
+        text, n = re.subn(backspace_or_eol, '', text, 1)
+    return text
+
+
+def plaintext2html(text, tabstop=4):
+    def do_sub(m):
+        c = m.groupdict()
+        if c['htmlchars']:
+            return cgi.escape(c['htmlchars'])
+        if c['lineend']:
+            return '<br>'
+        elif c['space']:
+            t = m.group().replace('\t', '&nbsp;' * tabstop)
+            t = t.replace(' ', '&nbsp;')
+            return t
+        elif c['space'] == '\t':
+            return ' ' * tabstop
+        else:
+            url = m.group('protocal')
+            if url.startswith(' '):
+                prefix = ' '
+                url = url[1:]
+            else:
+                prefix = ''
+            last = m.groups()[-1]
+            if last in ['\n', '\r', '\r\n']:
+                last = '<br>'
+            return '%s%s' % (prefix, url)
+    re_string = re.compile(
+        r'(?P<htmlchars>[<&>])|(?P<space>^[ \t]+)|(?P<lineend>\r\n|\r|\n)|'
+        r'(?P<protocal>(^|\s)((http|ftp)://.*?))(\s|$)',
+        re.S | re.M | re.I
+    )
+    result = re.sub(re_string, do_sub, text)
+    result = recolor('cyan', result)
+    result = recolor('blue', result)
+    result = recolor('red', result)
+    result = recolor('magenta', result)
+    result = recolor('green', result)
+    result = bold(result)
+    result = underline(result)
+    result = removebells(result)
+    result = removebackspaces(result)
+
+    return result