"""
cgitb.py
By Ka-Ping Yee <ping@lfw.org> http://web.lfw.org/python/
Modified for Webware by Ian Bicking <ianb@colorstudy.com>
"""
import sys, os, types, string, keyword, linecache, tokenize
# We include a copy of pydoc but since it's in the Python 2.1
# standard library, we'll try to import it there first.
try:
import pydoc
except ImportError:
from MiscUtils import pydoc
# But we need to use a fixed version of inspect, so we won't use the one that comes with Python 2.1.
from MiscUtils import inspect
DefaultOptions = {
'table.bgcolor': '#F0F0F0',
'default.fgcolor': '#000000',
'row.location.fgcolor': '#0000AA',
'row.code.fgcolor': '#FF0000',
'header.fgcolor': '#ffffff',
'header.bgcolor': '#a00000',
'subheader.fgcolor': '#000000',
'subheader.bgcolor': '#ccccff',
'code.accent.bgcolor': '#ddeeff',
'code.unaccent.fgcolor':'#909090',
}
def breaker():
return ('<body bgcolor="#f0f0ff">' +
'<font color="#f0f0ff" size="-5"> > </font> ' +
'</table>' * 5)
def html(context=5, options = None):
if options:
opt = DefaultOptions.copy()
opt.update(options)
else:
opt = DefaultOptions
etype, evalue = sys.exc_info()[:2]
if type(etype) is types.ClassType:
etype = etype.__name__
inspect_trace = inspect.trace(context)
inspect_trace.reverse()
pyver = 'Python ' + string.split(sys.version)[0] + '<br>' + sys.executable
javascript = """
<script language="JavaScript"><!--
function popup_repr(title, value) {
var w = window.open('', '_blank',
'directories=no,height=200,width=400,location=no,menubar=yes,scrollbars=yes,status=no,toolbar=no');
w.document.write('<html><head><title>' + title + '</title></head><body bgcolor="#ffffff">');
w.document.write(value);
w.document.write('<form><input type="button" onClick="window.close()" value="close window"></form></body></html>');
}
// --></script>"""
traceback_summary = []
for frame, file, lnum, func, lines, index in inspect_trace:
traceback_summary.append('<a href="#%s%i"><font color="%s">%s</font></a><font color="%s">:<tt style="font-family: Courier, sans-serif">%s</tt></font>' %
(string.replace(file, "/", "_"),
lnum,
opt["header.fgcolor"],
os.path.splitext(os.path.basename(file))[0],
opt["header.fgcolor"],
string.replace("%5i" % lnum, " ", " ")))
head = '<table bgcolor="%s" cellspacing=0 border=0><tr><td valign=top align=left><font color="%s"><big><big><strong>%s</strong></big></big>: %s</font></td><td rowspan=2 valign=top align=right>%s</td></tr>' % \
(opt['header.bgcolor'], opt['header.fgcolor'], str(etype),
pydoc.html.escape(str(evalue)),
string.join(traceback_summary, "<br>\n"))
head = head + '<tr><td valign=top bgcolor="#ffffff"><br>\n'
head = head + ('<p>A problem occurred while running a Python script. '
'Here is the sequence of function calls leading up to '
'the error, with the most recent (innermost) call first.')
head = head + '</td></tr></table>\n'
indent = '<tt><small>%s</small> </tt>' % (' ' * 5)
traceback = []
for frame, file, lnum, func, lines, index in inspect_trace:
if not file: file = "not found"
file = os.path.abspath(file)
try:
file_list = string.split(file, "/")
display_file = string.join(file_list[file_list.index("Webware") + 1:], "/")
except ValueError:
display_file = file
if display_file[-3:] == ".py":
display_file = display_file[:-3]
link = '<a name="%s%i"></a><a href="file:%s">%s</a>' % (string.replace(file, "/", "_"), lnum, file, pydoc.html.escape(display_file))
args, varargs, varkw, locals = inspect.getargvalues(frame)
if func == '?':
call = ''
else:
call = 'in <strong>%s</strong>' % func + inspect.formatargvalues(
args, varargs, varkw, locals,
formatvalue=lambda value: '=' + html_repr(value))
names = []
dotted = [0, []]
def tokeneater(type, token, start, end, line, names=names, dotted=dotted):
if type == tokenize.OP and token == ".":
dotted[0] = 1
if type == tokenize.NAME and token not in keyword.kwlist:
if dotted[0]:
dotted[0] = 0
dotted[1].append(token)
if token not in names:
names.append(dotted[1][:])
elif token not in names:
if token != "self": names.append(token)
dotted[1] = [token]
if type == tokenize.NEWLINE: raise IndexError
def linereader(file=file, lnum=[lnum]):
line = linecache.getline(file, lnum[0])
lnum[0] = lnum[0] + 1
return line
try:
tokenize.tokenize(linereader, tokeneater)
except IndexError: pass
lvals = []
for name in names:
if type(name) is type([]):
if locals.has_key(name[0]) or frame.f_globals.has_key(name[0]):
name_list, name = name, name[0]
if locals.has_key(name_list[0]):
value = locals[name_list[0]]
else:
value = frame.f_globals[name_list[0]]
name = "<em>global</em> %s" % name
for subname in name_list[1:]:
if hasattr(value, subname):
value = getattr(value, subname)
name = name + "." + subname
else:
name = name + "." + "(unknown: %s)" % subname
break
name = '<strong>%s</strong>' % name
if type(value) is types.MethodType and 1:
value = None
else:
value = html_repr(value)
elif name in frame.f_code.co_varnames:
if locals.has_key(name):
value = html_repr(locals[name])
else:
value = '<em>undefined</em>'
name = '<strong>%s</strong>' % name
else:
if frame.f_globals.has_key(name):
value = html_repr(frame.f_globals[name])
else:
value = '<em>undefined</em>'
name = '<em>global</em> <strong>%s</strong>' % name
if value is not None:
lvals.append('%s = %s' % (name, value))
if lvals:
lvals = string.join(lvals, ', ')
lvals = indent + '''
<small><font color="%s">%s</font></small><br>''' % (opt['code.unaccent.fgcolor'], lvals)
else:
lvals = ''
level = '''
<table width="100%%" bgcolor="%s" cellspacing=0 cellpadding=2 border=0>
<tr><td><font color="%s">%s %s</font></td></tr></table>''' % (opt['subheader.bgcolor'], opt['subheader.fgcolor'], link, call)
excerpt = []
try:
i = lnum - index
except TypeError:
i = lnum
lines = lines or ['file not found']
for line in lines:
number = ' ' * (5-len(str(i))) + str(i)
number = '<small><font color="%s">%s</font></small>' % (opt['code.unaccent.fgcolor'], number)
line = '<tt>%s %s</tt>' % (number, pydoc.html.preformat(line))
if i == lnum:
line = '''
<table width="100%%" bgcolor="%s" cellspacing=0 cellpadding=0 border=0>
<tr><td>%s</td></tr></table>''' % (opt['code.accent.bgcolor'], line)
excerpt.append('\n' + line)
if i == lnum:
excerpt.append(lvals)
i = i + 1
traceback.append('<p>' + level + string.join(excerpt, '\n'))
exception = '<p><strong>%s</strong>: %s' % (str(etype), str(evalue))
attribs = []
if type(evalue) is types.InstanceType:
for name in dir(evalue):
value = html_repr(getattr(evalue, name))
attribs.append('<br>%s%s = %s' % (indent, name, value))
return javascript + head + string.join(traceback) + exception + string.join(attribs)
def handler():
print breaker()
print html()
def html_repr(value):
html_repr_instance = pydoc.html._repr_instance
enc_value = pydoc.html.repr(value)
if len(enc_value) > html_repr_instance.maxstring:
plain_value = pydoc.html.escape(repr(value))
return '%s <a href="#" onClick="popup_repr(\'Long repr\', \'Full representation:<br>\\n%s\'); return false">(complete)</a>' \
% (enc_value, string.replace(string.replace(pydoc.html.escape(plain_value), "'", "\\'"), '"', '"'))
else:
return enc_value
if __name__ == '__main__':
try: import tester
except: handler()