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regexplanet-api.py
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regexplanet-api.py
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#!/usr/bin/python
#
#
#
import cgi
import datetime
import json
import os
import platform
import re
import sysconfig
import sys
import webapp2
def add_if_exists(obj, key, value):
if value:
obj[key] = value
class StatusPage(webapp2.RequestHandler):
def get(self):
retVal = {}
retVal["success"] = True
retVal["message"] = "OK"
retVal["commit"] = os.environ["COMMIT"] if "COMMIT" in os.environ else "dev"
retVal["timestamp"] = datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%SZ")
retVal["lastmod"] = os.environ["LASTMOD"] if "LASTMOD" in os.environ else "dev"
retVal["tech"] = "Python %d.%d.%d" % (sys.version_info.major, sys.version_info.minor, sys.version_info.micro)
retVal["version"] = "%s (%s)" % (platform.python_version(), platform.python_implementation())
add_if_exists(retVal, "platform.machine()", platform.machine())
add_if_exists(retVal, "platform.node()", platform.node())
#IOError: add_if_exists(retVal, "platform.platform()", platform.platform())
add_if_exists(retVal, "platform.processor()", platform.processor())
add_if_exists(retVal, "platform.python_branch()", platform.python_branch())
add_if_exists(retVal, "platform.python_build()", platform.python_build())
add_if_exists(retVal, "platform.python_compiler()", platform.python_compiler())
add_if_exists(retVal, "platform.python_implementation()", platform.python_implementation())
add_if_exists(retVal, "platform.python_version()", platform.python_version())
add_if_exists(retVal, "platform.python_revision()", platform.python_revision())
add_if_exists(retVal, "platform.release()", platform.release())
add_if_exists(retVal, "platform.system()", platform.system())
add_if_exists(retVal, "platform.version()", platform.version())
add_if_exists(retVal, "platform.uname()", platform.uname())
add_if_exists(retVal, "sysconfig.get_platform()", sysconfig.get_platform())
add_if_exists(retVal, "sysconfig.get_python_version()", sysconfig.get_python_version())
add_if_exists(retVal, "sys.byteorder", sys.byteorder)
add_if_exists(retVal, "sys.copyright", sys.copyright)
add_if_exists(retVal, "sys.getdefaultencoding()", sys.getdefaultencoding())
add_if_exists(retVal, "sys.getfilesystemencoding()", sys.getfilesystemencoding())
add_if_exists(retVal, "sys.maxint", sys.maxint)
add_if_exists(retVal, "sys.maxsize", sys.maxsize)
add_if_exists(retVal, "sys.maxunicode", sys.maxunicode)
add_if_exists(retVal, "sys.version", sys.version)
self.response.headers['Content-Type'] = 'text/plain'
callback = self.request.get('callback')
if len(callback) == 0 or re.match("[a-zA-Z][-a-zA-Z0-9_]*$", callback) is None:
self.response.headers['Access-Control-Allow-Origin'] = '*'
self.response.headers['Access-Control-Allow-Methods'] = 'POST, GET'
self.response.headers['Access-Control-Max-Age'] = '604800' # 1 week
self.response.out.write(json.dumps(retVal, separators=(',', ':')))
else:
self.response.out.write(callback)
self.response.out.write("(")
self.response.out.write(json.dumps(retVal, separators=(',', ':')))
self.response.out.write(");")
def post(self):
self.get()
class TestPage(webapp2.RequestHandler):
def get(self):
retVal = self.doTest()
self.response.headers['Content-Type'] = 'text/plain'
self.response.headers['Access-Control-Allow-Origin'] = '*'
self.response.headers['Access-Control-Allow-Methods'] = 'POST, GET'
self.response.headers['Access-Control-Max-Age'] = '604800' # 1 week
callback = self.request.get('callback')
if len(callback) == 0 or re.match("[a-zA-Z][-a-zA-Z0-9_]*$", callback) is None:
self.response.out.write(retVal)
else:
self.response.out.write(callback)
self.response.out.write("(")
self.response.out.write(retVal)
self.response.out.write(");")
def options(self):
self.response.headers['Content-Type'] = 'text/plain'
self.response.headers['Access-Control-Allow-Origin'] = '*'
self.response.headers['Access-Control-Allow-Methods'] = 'POST, GET'
self.response.headers['Access-Control-Max-Age'] = '604800' # 1 week
self.response.out.write('Yes, CORS is allowed!')
def post(self):
self.get()
def doTest(self):
regex = self.request.get('regex')
if len(regex) == 0:
return json.dumps({"success": False, "message": "no regular expression to test"})
replacement = self.request.get('replacement')
inputs = self.request.get_all('input')
options = set(self.request.get_all('option'))
flags = 0
flagList = []
if "ignorecase" in options:
flags |= re.IGNORECASE
flagList.append("IGNORECASE")
if "locale" in options:
flags |= re.LOCALE
flagList.append("LOCALE")
if "multiline" in options:
flags |= re.MULTILINE
flagList.append("MULTILINE")
if "dotall" in options:
flags |= re.DOTALL
flagList.append("DOTALL")
if "unicode" in options:
flags |= re.UNICODE
flagList.append("UNICODE")
if "verbose" in options:
flags |= re.VERBOSE
flagList.append("VERBOSE")
html = []
html.append('<table class="table table-bordered table-striped" style="width:auto;">\n')
html.append('\t<tbody>\n')
html.append('\t\t<tr>\n')
html.append('\t\t\t<td>')
html.append('Regular Expression')
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(cgi.escape(regex))
html.append('</td>\n')
html.append('\t\t</tr>\n')
html.append('\t\t<tr>\n')
html.append('\t\t\t<td>')
html.append('as a raw Python string')
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(cgi.escape("r'" + regex + "'"))
html.append('</td>\n')
html.append('\t\t</tr>\n')
html.append('\t\t<tr>\n')
html.append('\t\t\t<td>')
html.append('as a regular Python string (with re.escape())')
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(cgi.escape("'" + re.escape(regex)) + "'")
html.append('</td>\n')
html.append('\t\t</tr>\n')
html.append('\t\t<tr>\n')
html.append('\t\t\t<td>')
html.append('replacement')
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(cgi.escape(replacement))
html.append('</td>\n')
html.append('\t\t</tr>\n')
if len(options) > 0:
html.append('\t\t<tr>\n')
html.append('\t\t\t<td>')
html.append('flags (as constants)')
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(cgi.escape("|".join(flagList)))
html.append('</td>\n')
html.append('\t\t</tr>\n')
try:
pattern = re.compile(regex, flags)
except Exception as e:
html.append('\t\t<tr>\n')
html.append('\t\t\t<td>')
html.append('Exception')
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(cgi.escape(str(e)))
html.append('</td>\n')
html.append('\t\t</tr>\n')
html.append('\t</tbody>\n')
html.append('</table>\n')
return json.dumps({"success": False, "message": "re.compile() Exception:" + str(e), "html": "".join(html)})
if len(options) > 0:
html.append('\t\t<tr>\n')
html.append('\t\t\t<td>')
html.append('flags')
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(str(pattern.flags))
html.append('</td>\n')
html.append('\t\t</tr>\n')
html.append('\t\t<tr>\n')
html.append('\t\t\t<td>')
html.append('# of groups (.group)')
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(str(pattern.groups))
html.append('</td>\n')
html.append('\t\t</tr>\n')
html.append('\t\t<tr>\n')
html.append('\t\t\t<td>')
html.append('Group name mapping (.groupindex)')
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(str(pattern.groupindex))
html.append('</td>\n')
html.append('\t\t</tr>\n')
html.append('\t</tbody>\n')
html.append('</table>\n')
html.append('<table class="table table-bordered table-striped">\n')
html.append('\t<thead>\n')
html.append('\t\t<tr>\n')
html.append('\t\t\t<th style="text-align:center;">Test</th>\n')
html.append('\t\t\t<th>Target String</th>\n')
html.append('\t\t\t<th>findall()</th>\n')
#html.append('\t\t\t<th>match()</th>\n')
html.append('\t\t\t<th>split()</th>\n')
html.append('\t\t\t<th>sub()</th>\n')
html.append('\t\t\t<th>search()</th>\n')
for loop in range(0, pattern.groups+1):
html.append('\t\t\t<th>group(')
html.append(str(loop))
html.append(')</th>\n');
html.append('\t\t</tr>');
html.append('\t</thead>');
html.append('\t<tbody>');
for loop in range(0, len(inputs)):
test = inputs[loop]
if len(test) == 0:
continue
matcher = pattern.search(test)
html.append('\t\t<tr>\n')
html.append('\t\t\t<td style="text-align:center">')
html.append(str(loop+1))
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(cgi.escape(test))
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(cgi.escape(str(pattern.findall(test))))
html.append('</td>\n')
#html.append('\t\t\t<td>')
#html.append(cgi.escape(str(pattern.match(test))))
#html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(cgi.escape(str(pattern.split(test))))
html.append('</td>\n')
html.append('\t\t\t<td>')
html.append(cgi.escape(str(pattern.sub(replacement, test))))
html.append('</td>\n')
html.append('\t\t\t<td>')
if matcher:
html.append("pos=%d start()=%d end()=%d" % (matcher.pos, matcher.start(), matcher.end()))
html.append('</td>\n')
for group in range(0, pattern.groups+1):
html.append('\t\t\t<td>')
if matcher:
html.append(cgi.escape(matcher.group(group)))
html.append('</td>\n');
html.append('\t\t</tr>\n')
while matcher:
matcher = pattern.search(test, matcher.end())
if matcher:
html.append('\t\t<tr>\n');
html.append('\t\t\t<td colspan="5"> </td>\n')
html.append('\t\t\t<td>')
html.append("pos=%d start()=%d end()=%d" % (matcher.pos, matcher.start(), matcher.end()))
html.append('</td>\n')
for group in range(0, pattern.groups+1):
html.append('\t\t\t<td>')
html.append(cgi.escape(matcher.group(group)))
html.append('</td>\n');
html.append('\t\t</tr>\n')
html.append('\t</tbody>\n')
html.append('</table>\n')
return json.dumps({"success": True, "html": "".join(html)})
class MainPage(webapp2.RequestHandler):
def get(self):
self.response.headers['Location'] = 'http://www.regexplanet.com/advanced/python/index.html'
self.response.status = 307
app = webapp2.WSGIApplication( [
('/', MainPage),
('/status.json', StatusPage),
('/test.json', TestPage)
],
debug=True)