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# -*- test-case-name: twisted.web.test.test_web -*-
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# Copyright (c) 2001-2004 Twisted Matrix Laboratories.
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# See LICENSE for details.
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from cStringIO import StringIO
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from twisted.python import failure
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def redirectTo(URL, request):
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<meta http-equiv=\"refresh\" content=\"0;URL=%(url)s\">
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<body bgcolor=\"#FFFFFF\" text=\"#000000\">
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<a href=\"%(url)s\">click here</a>
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class Redirect(resource.Resource):
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def __init__(self, url):
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resource.Resource.__init__(self)
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def render(self, request):
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return redirectTo(self.url, request)
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def getChild(self, name, request):
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class ChildRedirector(Redirect):
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def __init__(self, url):
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if ((url.find('://') == -1)
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and (not url.startswith('..'))
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and (not url.startswith('/'))):
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raise ValueError("It seems you've given me a redirect (%s) that is a child of myself! That's not good, it'll cause an infinite redirect." % url)
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Redirect.__init__(self, url)
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def getChild(self, name, request):
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if not newUrl.endswith('/'):
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return ChildRedirector(newUrl)
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from twisted.python import urlpath
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class ParentRedirect(resource.Resource):
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I redirect to URLPath.here().
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def render(self, request):
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return redirectTo(urlpath.URLPath.fromRequest(request).here(), request)
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def getChild(self, request):
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class DeferredResource(resource.Resource):
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I wrap up a Deferred that will eventually result in a Resource
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def __init__(self, d):
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resource.Resource.__init__(self)
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def getChild(self, name, request):
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def render(self, request):
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self.d.addCallback(self._cbChild, request).addErrback(
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self._ebChild,request)
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from twisted.web.server import NOT_DONE_YET
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def _cbChild(self, child, request):
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result = resource.getChildForRequest(child, request).render(request)
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from twisted.web.server import NOT_DONE_YET
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if result == NOT_DONE_YET:
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request.write(result)
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def _ebChild(self, reason, request):
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request.processingFailed(reason)
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<style type="text/css">
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font-family: Verdana, Arial, helvetica, sans-serif;
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font-family: Verdana, Arial, helvetica, sans-serif;
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border-bottom: thin black dashed;
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border-top: thin black dashed;
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border-bottom: thin black dashed;
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margin-bottom: 0.5em;
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div.snippetHighlightLine {
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font-family: "Courier New", courier, monotype;
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font-family: "Courier New", courier, monotype;
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border-collapse: collapse;
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padding-right: 0.5em;
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padding-right: 0.5em;
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margin-bottom: 0.5em;
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font-family: "Courier New", courier, monotype;
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return htmlReprTypes.get(type(x), htmlUnknown)(x)
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rx = "<repr failed! %s instance at %s>" % (x.__class__, id(x))
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return '<code>'+html.escape(saferepr(x))+'</code>'
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w('<div class="dict"><span class="heading">Dictionary instance @ %s</span>' % hex(id(d)))
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w('<table class="dict">')
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for k, v in d.items():
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if k == '__builtins__':
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v = 'builtin dictionary'
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w('<tr><td class="dictKey">%s</td><td class="dictValue">%s</td></tr>' % (htmlrepr(k), htmlrepr(v)))
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w('<div class="list"><span class="heading">List instance @ %s</span>' % hex(id(l)))
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w('<div class="listItem">%s</div>' % htmlrepr(i))
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if hasattr(i, "__html__"):
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s = html.escape(saferepr(i))
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return '''<div class="instance"><span class="instanceName">%s instance @ %s</span>
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<span class="instanceRepr">%s</span></div>
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''' % (i.__class__, hex(id(i)), s)
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return html.escape(saferepr(s))
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return ('<div class="function">' +
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html.escape("function %s in file %s at line %s" %
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(f.__name__, f.func_code.co_filename,
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f.func_code.co_firstlineno))+
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htmlReprTypes = {types.DictType: htmlDict,
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types.ListType: htmlList,
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types.InstanceType: htmlInst,
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types.StringType: htmlString,
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types.FunctionType: htmlFunc}
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def htmlIndent(snippetLine):
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ret = string.replace(string.replace(html.escape(string.rstrip(snippetLine)),
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'\t', ' ')
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def formatFailure(myFailure):
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<p class="error">%s: %s</p>
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<div class="location">%s, line %s in <span class="function">%s</span></div>
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snippetLineHTML = """
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<div class="snippetLine"><span class="lineno">%s</span><span class="code">%s</span></div>
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snippetHighlightLineHTML = """
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<div class="snippetHighlightLine"><span class="lineno">%s</span><span class="code">%s</span></div>
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<tr class="varRow"><td class="varName">%s</td><td class="varValue">%s</td></tr>
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if not isinstance(myFailure, failure.Failure):
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return html.PRE(str(myFailure))
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w('<a href="#tbend">')
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w(exceptionHTML % (html.escape(str(myFailure.type)),
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html.escape(str(myFailure.value))))
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w('<div class="stackTrace">')
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for method, filename, lineno, localVars, globalVars in myFailure.frames:
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if filename == '<string>':
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w('<div class="firstFrame">')
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w('<div class="frame">')
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w(frameHTML % (filename, lineno, method))
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w('<div class="snippet">')
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for snipLineNo in range(lineno-2, lineno+2):
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snipLine = linecache.getline(filename, snipLineNo)
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textSnippet += snipLine
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snipLine = htmlIndent(snipLine)
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if snipLineNo == lineno:
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w(snippetHighlightLineHTML % (snipLineNo, snipLine))
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w(snippetLineHTML % (snipLineNo, snipLine))
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for name, var in localVars:
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if name == 'self' and hasattr(var, '__dict__'):
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usedVars = [ (key, value) for (key, value) in var.__dict__.items()
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if re.search(r'\W'+'self.'+key+r'\W', textSnippet) ]
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w('<div class="variables"><b>Self</b>')
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w('<table class="variables">')
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for key, value in usedVars:
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w(variableHTML % (key, htmlrepr(value)))
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# Local and global vars
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for nm, varList in ('Locals', localVars), ('Globals', globalVars):
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usedVars = [ (name, var) for (name, var) in varList
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if re.search(r'\W'+name+r'\W', textSnippet) ]
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w('<div class="variables"><b>%s</b><table class="variables">' % nm)
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for name, var in usedVars:
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w(variableHTML % (name, htmlrepr(var)))
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w('</div>') # stacktrace
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w('<a name="tbend"> </a>')
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w(exceptionHTML % (html.escape(str(myFailure.type)),
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html.escape(str(myFailure.value))))
added
removed
src/twisted/web/util.py
