def minify(text, mangle=False, mangle_toplevel=False):
parser = Parser()
tree = parser.parse(text)
if mangle:
mangler.mangle(tree, toplevel=mangle_toplevel)
minified = ECMAMinifier().visit(tree)
return minified
def position_info_from_naver(url):
parsed_obj = urlparse(url)
article_info_no = 1
if parsed_obj.netloc == 'm.land.naver.com':
article_info_no = parsed_obj.path.split('/')[-1]
elif parsed_obj.netloc == 'new.land.naver.com':
article_info_no = dict(parse_qsl(parsed_obj.query))['articleNo']
else:
raise Exception('unknown url : ' + parsed_obj.netloc )
r = requests.get('https://m.land.naver.com/article/info/' + str(article_info_no))
soup = BeautifulSoup(r.content, "html.parser")
res = dict()
for sc in soup.findAll("script"):
pos = sc.text.find('land.articleDetail.jsonPageData')
if pos > 0:
bracket_start_pos = sc.text.find('{',pos)
bracket_end_pos = sc.text.find(';', pos)
#print(sc.text[bracket_start_pos:bracket_end_pos])
#js_obj_txt = sc.text[bracket_start_pos:bracket_end_pos]
js_obj_txt = sc.text[pos:bracket_end_pos]
# print(js_obj_txt)
parser = Parser()
tree = parser.parse(js_obj_txt)
visitor = NaverDataVisitor()
visitor.visit(tree)
res = visitor.res
return res
def get_forecast(link):
html_doc = urllib2.urlopen(link).read()
soup = BeautifulSoup(html_doc, "html.parser")
forecast_text = soup.find("div", id="div_wgfcst1").find("script").string
parser = Parser()
forecast_tree = parser.parse(forecast_text)
full_data = {
parse_key(node.left): parse_value(node.right)
for node in nodevisitor.visit(forecast_tree)
if isinstance(node, ast.Assign)
}
forecast_tree = parser.parse(forecast_text)
forecast = {
parse_key(node.left): parse_array(node.right)
for node in nodevisitor.visit(forecast_tree)
if isinstance(node, ast.Assign) and isinstance(node.right, ast.Array)
}
full_data.update(forecast)
return full_data
def minify(text, mangle=False):
parser = Parser()
tree = parser.parse(text)
if mangle:
mangler.mangle(tree)
minified = ECMAMinifier().visit(tree)
return minified
def extract_glow_lib():
runjs = norm_path('untrusted/run.js')
parser = JSParser()
with open(runjs) as f:
tree = parser.parse(f.read())
for node in nodevisitor.visit(tree):
if (isinstance(node, ast.Assign) and
isinstance(node.left, ast.DotAccessor) and
node.left.identifier.value == 'glowscript_libraries' and
isinstance(node.right, ast.Object)):
break
else:
print('Parsing {} failed'.format(runjs))
exit(-1)
return preproc_lib_path({
prop.left.value:
[
eval(lib.value)
for lib in prop.right.items
if isinstance(lib, ast.String)
]
for prop in node.right.properties
})
def analyzeJSCodesFinerBlock(script, display=False):
try:
t1 = time.time()
parser = Parser()
script = script.strip()
if script.startswith('<!--') and script.endswith('-->'):
script = script[4:-3]
tree = parser.parse(script)
visitor = MyVisitor(display)
visitor.visit(tree, 0)
if len(visitor.first_level_seq) != len(visitor.scripts):
print >> sys.stderr, "error parsing script: scripts and seqs length inconsistent " + script[:
100]
return None, None
t2 = time.time()
total_time = t2 - t1
total_len = float(len(script))
try:
portion = [len(x) / total_len for x in visitor.scripts]
for i in range(len(portion)):
t = total_time * portion[i]
print "AST_TIME: %f %d" % (t, len(visitor.scripts[i]))
except:
pass
return visitor.first_level_seq, visitor.scripts
except Exception as e:
print >> sys.stderr, "error parsing script: " + str(
e) + " || [START]" + script[:100] + "[END]"
return None, None
def load_data():
# Read list names (toplists.js)
f = open("./data/masterbugtable.js", "r")
tmp = f.read()
f.close()
masterbugtable = json.loads(tmp[tmp.index("{") :])
# find and process latest test data
f = open("./data/testing/index.json", "r")
tmp = f.read()
f.close()
test_file_index = json.loads(tmp)
f = open("./data/testing/%s" % test_file_index[-1], "r")
test_data = {}
test_reader = csv.reader(f)
for line in test_reader:
test_data[str(line[0])] = {"bug": line[0], "test_date": line[1], "ua": line[2], "test_state": line[3]}
f.close()
f = open("./data/sitedata.js", "r")
parser = Parser()
tree = parser.parse(f.read())
f.close()
return {
"masterbugtable": masterbugtable,
"test_result_files": test_file_index,
"test_results": test_data,
"tests_parsed": tree,
}
def scan_js(crawler, url, content):
'''
scan javascript for url assignments (like ajax calls).
'''
LOGGER.info('Scanning Javascript on %s' % url)
parser = Parser()
tree = parser.parse(content)
for node in nodevisitor.visit(tree):
if not isinstance(node, ast.Assign): # <something>: <something>
continue
leftval = getattr(node.left, 'value', '') # 'leftval': <something>
if not leftval:
continue
if 'url' not in leftval: # 'url': <something>
continue
if isinstance(node.right, ast.String): # 'url': 'somestring'
LOGGER.info('Found interesting url in JS: %s' %
node.right.value[1:-1])
crawler.check_link(url, node.right.value[2:-1])
for item in node.right.__dict__.values(): # string in <something>
# <something> may be function_call() / variable + 'somestring'
if isinstance(item, ast.String):
LOGGER.info('Found interesting url in JS: %s' %
item.value[1:-1])
crawler.check_link(url, item.value[2:-1])
def card_price_history(setname, cardname):
'''
Scrapes price history of card from MTGPrice.com, using javascript parser
Input:
Setname and cardname are strings, generally taken from Scryfall API.
Output:
A numpy array of price history, each 'row' in the form [timestamp, price]
'''
# Turn card data into soup
link = 'https://www.mtgprice.com/sets/' + '_'.join(
setname.split()) + '/' + '_'.join(cardname.split())
soup = BeautifulSoup(requests.get(link).content, 'html.parser')
# GET RESULTS
text_to_find = 'var results = ['
history = []
for script in soup.findAll('script', type='text/javascript'):
if text_to_find in script.text:
parser = Parser()
tree = parser.parse(script.text)
for node in nodevisitor.visit(tree):
if isinstance(node, ast.Assign) and getattr(
node.left, 'value', '') == "\"data\"":
for prices in node.right.items:
history.append(
[prices.items[0].value, prices.items[1].value])
break
return np.array(history)
def parse_global_js_for_access_id_action_url(global_js):
parser = Parser()
tree = parser.parse(global_js)
parts = ['protocol', 'roDomain', 'ro', 'rt']
UrlParts = namedtuple('UrlParts', parts)
url_parts = UrlParts([], [], [], [])
getvalue = operator.attrgetter('value')
err = "Too many '{}' assignments in global.js."
for node in nodevisitor.visit(tree):
if isinstance(node, ast.Assign):
try:
left_value = getvalue(node.left).strip('\'"')
except AttributeError:
continue
if left_value in parts:
right_value = getvalue(node.right).strip('\'"')
assert right_value not in getattr(
url_parts, left_value), err.format('protocol')
getattr(url_parts, left_value).append(right_value)
return url_parts.protocol[0] + url_parts.roDomain[0] + url_parts.ro[
0] + url_parts.rt[0]
def parse_country(self, response):
charts = response.xpath('//*[@class="row graph_row"]')
total_corona_chart = charts[0]
script = total_corona_chart.xpath('div/script/text()').extract()[0]
title = total_corona_chart.xpath('div/h3/text()').extract()[0]
try:
country_name = title[title.index(" in ")+4:]
if country_name[:4] == "the ":
country_name = country_name[4:]
except e:
raise ValueError("Worldometer changed their labels.\
Hold your pain, Harold.")
parser = Parser()
tree = parser.parse(script)
data = [None, None] # dates and corresponding number of cases
for node in nodevisitor.visit(tree):
if isinstance(node, ast.Assign):
if getattr(node.left, 'value', '') == 'categories' and not data[0]:
print("\nparsing dates\n")
data[0] = [eval(getattr(s, 'value', '')) for s in getattr(node.right, 'items', '')]
elif getattr(node.left, 'value', '') == 'data' and not data[1]:
print("\nparsing number of cases\n")
data[1] = [int(getattr(n, 'value', '')) for n in getattr(node.right, 'items', '')]
assert data[0] and data[1] and len(data[0]) == len(data[1])
with open("data/%s.csv" % country_name, 'w+') as f:
for k in range(len(data[0])):
f.write(data[0][k])
f.write(',')
f.write(str(data[1][k]))
f.write('\n')
def find_first_match(test_file_content, pos):
test_file_content = TestMethodMatcher.UnitTest.insert_mark(test_file_content, pos)
if not test_file_content:
return None
parser = Parser()
tree = parser.parse(test_file_content)
return TestMethodMatcher.UnitTest.get_test_name(tree)
def parse(expression, mode='eval'):
if mode == 'eval':
return Parser().parse(expression).children()[0].expr
elif mode == 'exec':
return Parser().parse(expression).children()
raise TypeError("Only eval, exec modes allowed")
def analyzeJSCodesFinerBlock(script, display=False):
try:
t1 = time.time()
parser = Parser()
script = script.strip()
if script.startswith('<!--') and script.endswith('-->'):
script = script[4: -3]
tree = parser.parse(script)
visitor = MyVisitor( display)
visitor.visit(tree, 0)
if len(visitor.first_level_seq) != len(visitor.scripts):
print >>sys.stderr, "error parsing script: scripts and seqs length inconsistent "+script[:100]
return None, None
t2 = time.time()
total_time = t2 - t1
total_len = float(len(script))
try:
portion = [len(x)/total_len for x in visitor.scripts]
for i in range(len(portion)):
t = total_time * portion[i]
print "AST_TIME: %f %d" %(t, len(visitor.scripts[i]))
except:
pass
return visitor.first_level_seq, visitor.scripts
except Exception as e:
print >>sys.stderr, "error parsing script: "+str(e)+" || [START]"+script[:100]+"[END]"
return None, None
def extract_g_config(script_text):
parser = Parser()
ast_tree = parser.parse(script_text)
for node in nodevisitor.visit(ast_tree):
if isinstance(node,
ast.VarDecl) and node.identifier.value == 'g_config':
return extract_object_as_map(node.initializer)
def get_property_attributes(url):
response = requests.get(url)
#html parser
soup = BeautifulSoup(response.text, 'html.parser')
script = soup.findAll('script', {'type': 'text/javascript'})[3]
# if ad link returns valid search result, scan for attributes, else skip
if soup.title.string.find('Real Estate Properties') == -1:
# if ad is archived, put in dummy date, else get real date
if soup.find("span", "status-label label-archive") != None:
date = '31 Dec 9999'
else:
#get date from title of advertisement
date = re.findall(r'\d{2}\s\w{3}\s\d{4}', soup.title.string)[0]
#javascript parser
parser = Parser()
tree = parser.parse(script.text)
fields = {
getattr(node.left, 'value', ''): getattr(node.right, 'value', '')
for node in nodevisitor.visit(tree)
if isinstance(node, ast.Assign)
}
fields.update({'"date sold"': '"' + date + '"'})
return fields
else:
return None
def _addscript(self, path, date, url, script):
checksum = sha1(script).digest()
if redis_db.sadd('js_script_checksums', checksum):
self.last['script_checksum'] = hexlify(checksum)
try:
js_parser = JSParser()
js_parser.parse(script)
except Exception:
# Keep unparsable scripts as 'bad' script if they don't look like HTML.
mime_type = magic.from_buffer(script.replace('\v', ' '),
mime=True)
if mime_type == 'text/html' or mime_type == 'application/xml':
return
print >> sys.stderr, 'Cannot parse ' + path
path = '.bad/' + path
header = '// Retrieved %sfrom %s\n' % (date + ', ' if date else '',
url)
path = args.prefix + '/' + path
try:
os.makedirs(os.path.dirname(path))
except OSError:
pass
jsfile = open(path, 'w')
jsfile.write(header)
jsfile.write(script)
jsfile.close()
def assertUnusedObjects(self, source, expected):
parser = Parser()
tree = parser.parse(source)
uvisit = UnusedObjectsVisitor()
uvisit.do(tree)
self.maxDiff = None
self.assertSequenceEqual(tree.to_ecma(), expected)
def chapter_url2image_urls(chapter_url):
g = get_info_from_url(chapter_url, chapter2images)
p = Parser()
for t2_or_t3, (slot_idx, pattern_idx, info_pattern) in g:
tag, _, data = t2_or_t3
#p = Parser()
tree = p.parse(data)
pre = None
for node in nodevisitor.visit(tree):
if isinstance(node, ast.Identifier) and node.value == 'image_list':
break
pre = node
assert pre != None
m = _image_list_match_pattern.match(pre.to_ecma())
assert m != None
image_list = eval(m.group(1))
image_list = eval(image_list)
ls = []
for info in image_list.values():
src = base64.b64decode(info['src']).decode('ascii')
page = info['page']
ls.append((page, src))
ls.sort()
ls = tuple(src for _, src in ls)
return ls
def extract(self, node):
'''
Given a BeautifulSoup representation of an HTML document,
return a list of all code snippets in that document.
'''
node_code = None
code_snippets = []
# Attempt to parse content for a code node as JavaScript.
# Mark the content as a code snippet if it is parsed successfully.
# Skip nodes with nothing but whitespace content.
if type(node) is Tag and node.name in self.TAGS:
if node.text.strip() != '':
try:
js_parser = JavaScriptParser()
js_parser.parse(node.text)
except (SyntaxError, TypeError, AttributeError):
logger.debug("Code content could not be parsed as JavaScript.")
else:
node_code = node.text
code_snippets.append(node_code)
# If this node did not contain valid code, then visit all children
# and check them for code.
if node_code is None and hasattr(node, 'children'):
for child_element in node.children:
code_snippets.extend(self.extract(child_element))
return code_snippets
def test_func(self):
parser = Parser()
tree = parser.parse(input)
mangle(tree, toplevel=True)
self.assertMultiLineEqual(
textwrap.dedent(tree.to_ecma()).strip(),
textwrap.dedent(expected).strip())
def inital_check_for_obfuscation_condtiion_sensitiveFunctions(js_text):
parser = Parser()
tree = parser.parse(js_text)
keywords = set()
if_condition = False
for node in nodevisitor.visit(tree):
if isinstance(node, If):
if_condition = True
continue
stack = [node]
#BFS to go to every depth of the AST tree
while stack:
node = stack.pop()
#only dot access has a.b.getStringfromChar
if isinstance(node, DotAccessor):
try:
for i in node.children():
stack.append(i)
except:
pass
continue
if isinstance(node, Identifier):
#print (node.value),
keywords.add(node.value)
#print ("Done visit")
obfuscation = False
profiling = False
if if_condition:
pass
ob_list = set()
pro_list = set()
for ob in obfuscation_function_names:
if ob in keywords:
#print ("[Obfuscation keywords]", ob)
obfuscation = True
ob_list.add(ob)
#break
for pro in profiling_function_names:
if pro in keywords:
#print ("[Profiling keywords]", pro)
profiling = True
pro_list.add(pro)
#break
#print ('if_condition: {}, obfuscation {}, profiling {}'.format(if_condition,obfuscation,profiling))
#pint (js_text)
return if_condition, obfuscation, profiling, ob_list, pro_list
def _parse_succeeds(self, text):
try:
parser = JsParser()
parser.parse(text)
except (SyntaxError, TypeError):
return False
else:
return True
def invJSToZ3(inv, typeEnv):
p = Parser()
t = p.parse(inv)
assert (isinstance(t, jsast.Program))
assert (len(t.children()) == 1)
assert (isinstance(t.children()[0], jsast.ExprStatement))
return jsToZ3Expr(t.children()[0].expr, typeEnv)
def test_func(self):
parser = Parser()
tree = parser.parse(input)
mangle(tree, toplevel=True)
self.assertMultiLineEqual(
textwrap.dedent(tree.to_ecma()).strip(),
textwrap.dedent(expected).strip()
)
def case(self, case):
parser_a = Parser()
result_a = parser_a.parse(case)
parser_b = Parser()
result_b = parser_b.parse(case)
self.assertEqual(result_a, result_b)
def assertFoldingObjects(self, source, expected):
parser = Parser()
tree = parser.parse(source)
uvisit = foldingvisitor.FoldingVisitor()
uvisit.do(tree)
print(tree.to_ecma())
self.maxDiff = None
self.assertSequenceEqual(tree.to_ecma(), expected)
def whileExtract(s):
'''Extracts all the while loops in the script. '''
l = []
parser = Parser()
tree = parser.parse(s)
for node in nodevisitor.visit(tree):
if isinstance(node, ast.While):
l+=[node.to_ecma()]
return l
def parse_script(data):
# Hack. Fix javascript syntax issue in steam's response
to_replace = 'BuildGameRow(game, )'
replacement = 'BuildGameRow(game, 0)'
data = data.replace(to_replace, replacement)
parser = Parser()
tree = parser.parse(data)
variables = [node for node in nodevisitor.visit(tree)
if isinstance(node, ast.VarDecl)]
return variables
def test_bug_no_semicolon_at_the_end_of_block_plus_newline_at_eof(self):
# https://github.com/rspivak/slimit/issues/3
text = textwrap.dedent("""
function add(x, y) {
return x + y;
}
""")
parser = Parser()
tree = parser.parse(text)
self.assertTrue(bool(tree.children()))
def test_bug_no_semicolon_at_the_end_of_block_plus_newline_at_eof(self):
# https://github.com/rspivak/slimit/issues/3
text = textwrap.dedent("""
function add(x, y) {
return x + y;
}
""")
parser = Parser()
tree = parser.parse(text)
self.assertTrue(bool(tree.children()))
def _parse_redirect_to_security_challenge_script(script: str) -> str:
""" Parses the script which redirects us to security challenge page and gets that URL. """
parser = Parser()
tree = parser.parse(script)
nodes = [node for node in nodevisitor.visit(tree) if isinstance(node, ast.Assign)]
for node in nodevisitor.visit(tree):
if isinstance(node, ast.Assign) and hasattr(node, 'left') and isinstance(node.left, ast.DotAccessor):
children = node.left.children()
if len(children) == 2 and children[0].value == 'window' and children[1].value == 'location':
return node.right.value.strip('\'"')
def parse(text):
"""
Turn a valid JavaScript source string and turn it into a source tree
through the Parser provided by the slimit.parser module.
"""
global _parser
if _parser is None:
_parser = Parser()
return _parser.parse(text)
def addAllIntEnv(inv, env=None):
if (env == None):
env = {}
p = Parser()
t = p.parse(inv)
for node in nodevisitor.visit(t):
if isinstance(node, jsast.Identifier):
env[node.value] = Int
return env
def _test_function_expression(self):
text = """
if (true) {
function() {
foo;
location = 'http://anywhere.com';
}
}
"""
parser = Parser()
parser.parse(text)
def _test_function_expression(self):
text = """
if (true) {
function() {
foo;
location = 'http://anywhere.com';
}
}
"""
parser = Parser()
parser.parse(text)
def analyzeJSCodes(script, display=False):
try:
parser = Parser()
tree = parser.parse(script)
visitor = MyVisitor( display)
visitor.visit(tree, 0)
#print "first_level_seq: %d" %len(visitor.first_level_seq)
return visitor.node_order_list
except Exception as e:
print >>sys.stderr, "error parsing script: "+str(e)+" || "+script
return None
def removeDeclarations(js_file):
parser = Parser()
tree = parser.parse(js_file)
output = ""
for child in tree.children():
if type(child) != ast.VarStatement:
output += (child.to_ecma() + "\n")
else:
nodes = [x for x in nodevisitor.visit(child)]
if type(nodes[0].initializer) not in [ast.String, ast.Number, ast.BinOp]:
output += (child.to_ecma() + "\n")
return output
def rewriteJSCodes(script, display=False):
try:
parser = Parser()
tree = parser.parse(script)
visitor = RewriteVisitor( display)
visitor.visit(tree, 0)
x = ECMAVisitor().visit(tree)
print x
#print tree.to_ecma()
#print "first_level_seq: %d" %len(visitor.first_level_seq)
except Exception as e:
print >>sys.stderr, "error parsing script: "+str(e)+" || "+script
def main():
args = parse_args()
with open(args.filename) as f:
source = f.read()
parser = Parser()
tree = parser.parse(source)
visitor = ConstantReductionVisitor(args.debug)
tree = visitor.visit(tree)
print tree.to_ecma()
def main():
args = parse_args()
with open(args.filename) as f:
source = f.read()
parser = Parser()
tree = parser.parse(source)
visitor = ConstantReductionVisitor(args.debug)
tree = visitor.visit(tree)
print tree.to_ecma()
def analyzeJSCodes(script, display=False):
try:
parser = Parser()
tree = parser.parse(script)
visitor = MyVisitor(display)
visitor.visit(tree, 0)
#print "first_level_seq: %d" %len(visitor.first_level_seq)
return visitor.node_order_list
except Exception as e:
print >> sys.stderr, "error parsing script: " + str(
e) + " || " + script
return None
def parse_JavaScript(js):
global functions
parser = Parser()
tree = parser.parse(js)
for node in nodevisitor.visit(tree):
if isinstance(node, ast.FuncDecl):
if len(node.parameters) > 1:
last = node.parameters[len(node.parameters) - 1]
first = node.parameters[0]
# check for the first parameter
if first.value == "this$static":
# check that the last one is a callback
if last.value == "callback":
# the function will call createStreamWriter if its used in the client interface
if "createStreamWriter" in node.to_ecma():
params = []
# if we have function arguments
if len(node.parameters) > 2:
# -2 for the 'this' and callback
num_of_params = len(node.parameters) - 2
for param in node.parameters:
# we just append the arguments we will need to make in the GWT request
if param.value != "this$static" and param.value != "callback":
params.append(param.value)
# else we have no arguments
else:
num_of_params = 0
# strip the correct function name
function = node.identifier.value.replace("$", "")
function = re.sub('_\d+', '', function)
# append to a list, since we my have functions of the same name, but different signatures
extracted.append({
"function":
function,
"num_of_args":
num_of_params,
"args":
params,
"arg_type_data":
get_param_types(function, node.to_ecma())
})
def rewriteJSCodes(script, display=False):
try:
parser = Parser()
tree = parser.parse(script)
visitor = RewriteVisitor(display)
visitor.visit(tree, 0)
x = ECMAVisitor().visit(tree)
print x
#print tree.to_ecma()
#print "first_level_seq: %d" %len(visitor.first_level_seq)
except Exception as e:
print >> sys.stderr, "error parsing script: " + str(
e) + " || " + script
def episode():
url = h.extract_var(args, 'url')
name = h.extract_var(args, 'name')
soup = BeautifulSoup(h.make_request(url, cookie_file, cookie_jar))
div = h.bs_find_with_class(soup, 'div', 'video-player')
scripts = div.findAll('script')
script = None
for _script in scripts:
if 'CryptoJS' in _script.text:
script = _script
break
url = ''
if script:
script_text = script.text
_dailytoday = ''
_subject = ''
parser = Parser()
tree = parser.parse(script.text)
for node in tree.children():
ecma = node.to_ecma()
if ecma.startswith('var dailytoday ='):
_dailytoday = node.children()[0].children()[1].to_ecma()[1:-1]
elif ecma.startswith('var subject ='):
_subject = node.children()[0].children()[1].to_ecma()[1:-1]
# elif "var bigmumbai = " not in ecma and "bigmumbai = " in ecma:
# print ecma
if _dailytoday and _subject:
url = decrypt.decrypt_url(_dailytoday, _subject)
else:
url = script.text.split('bigmumbai = ', 2)[2].split(';')[0][1:-1]
print url
plot = h.bs_find_with_class(soup, 'div', 'vp-info').find('span', {'itemprop': 'description'}).text
thumbnail = soup.find('div', {'itemprop': 'video'}).find('meta', {'itemprop': 'thumbnailUrl'})['content']
h.add_dir_video(addon_handle, name, url, thumbnail, plot)
else:
iframe = div.find('iframe')
if iframe:
attrs = dict(iframe.attrs)
youtube_url = attrs['src']
print youtube_url
video_id = urlparse.urlparse(youtube_url).path.replace('/embed/', '')
url = 'plugin://plugin.video.youtube/play/?video_id=%s' % video_id
h.add_dir_video(addon_handle, name, url, '', '')
def removeDeclarations(js_file):
parser = Parser()
tree = parser.parse(js_file)
output = ""
for child in tree.children():
if type(child) != ast.VarStatement:
output += (child.to_ecma() + "\n")
else:
nodes = [x for x in nodevisitor.visit(child)]
if type(nodes[0].initializer) not in [
ast.String, ast.Number, ast.BinOp
]:
output += (child.to_ecma() + "\n")
return output
def ParsingOfFunction():
index = 0
parser = Parser()
tree = parser.parse('l = 0;l = h;')
# for node in nodevisitor.visit(tree):
# if isinstance(node, ast.Identifier) and node.value == 'i':
# node.value = 'hello'
x = tree.to_ecma() # print awesome javascript :)
# print x;
# print "Opening the file..."
# target = open("file.txt",'w')
# target.write(x)
# target.close()
lines = [line.rstrip('\n') for line in open('file.txt')]
map = {}
temp = ""
i = 0
# print lines;
for str in lines:
if ';' in str:
temp = temp + str
temp = temp.lstrip(";")
# print temp;
map.__setitem__(i, temp)
print "Going into the lexer function --------------"
lex = LexingofFunction(temp)
temp = ""
i += 1
else:
temp = temp + str
# print map;
print "----------------------------- print heap now"
for x in heap:
print x.name
print x.level
return
def test_modify_tree(self):
text = """
for (var i = 0; i < 10; i++) {
var x = 5 + i;
}
"""
parser = Parser()
tree = parser.parse(text)
for node in nodevisitor.visit(tree):
if isinstance(node, ast.Identifier) and node.value == 'i':
node.value = 'hello'
self.assertMultiLineEqual(
tree.to_ecma(),
textwrap.dedent("""
for (var hello = 0; hello < 10; hello++) {
var x = 5 + hello;
}
""").strip()
)
def treeWalker(js_file):
parser = Parser()
tree = parser.parse(js_file)
variables = {}
for child in tree.children():
if type(child) == ast.VarStatement:
try:
nodes = [x for x in nodevisitor.visit(child)]
if type(nodes[0].initializer) == ast.String:
variables[nodes[0].identifier.value] = nodes[0].initializer.value
elif type(nodes[0].initializer) == ast.Number:
variables[nodes[0].identifier.value] = eval(nodes[0].initializer.to_ecma())
elif type(nodes[0].initializer) == ast.BinOp:
variables[nodes[0].identifier.value] = eval(nodes[0].initializer.to_ecma())
else:
print((nodes[0].identifier.value, nodes[0].initializer))
except Exception as e:
print (child.to_ecma())
return variables
def partitionCode(sourceCode):
parser = Parser()
print "Source code originally is ............ \n", sourceCode
tree = parser.parse(sourceCode)
fnList = FunctionDefinitionsPass(tree)
mobileDeviceList = MobileDevicesPass(tree)
predicateList = PredicatePass(tree)
for node in nodevisitor.visit(tree):
if isinstance(node, ast.ExprStatement):
exprNode = node.expr
if isinstance(exprNode, ast.FunctionCall): # check if this is a function call to an object
ParseMethodCalls(
exprNode, fnList, mobileDeviceList, predicateList
) # TODO: Impose the restiction that all mobile Device declarations come ahead of all else
print "-*********\n*******\n------------------THE PARTITIONED CODE IS -----------------------------*********\n*******\n"
for key in partitionedCode:
print "On node ", key, ", code is \n\n"
print partitionedCode[key]
def partitionCode(sourceCode):
parser = Parser()
sourceCodeInHtml=sourceCode.replace(';','\n');
print "MULTI PHONE SCRIPT \n----------------------------------------\n", sourceCodeInHtml
tree=parser.parse(sourceCode);
fnList=FunctionDefinitionsPass(tree)
mobileDeviceList=MobileDevicesPass(tree)
predicateList=PredicatePass(tree)
for node in nodevisitor.visit(tree):
if(isinstance(node,ast.ExprStatement)):
exprNode=node.expr
if(isinstance(exprNode,ast.FunctionCall)): # check if this is a function call to an object
ParseMethodCalls(exprNode,fnList,mobileDeviceList,predicateList) # TODO: Impose the restiction that all mobile Device declarations come ahead of all else
print "\n\nPARTITIONED CODE \n----------------------------------------\n",
returnCode =dict()
for key in partitionedCode :
print "On phone name \"",mobileDeviceList[key],"\" : \n ",
print "\t",partitionedCode[key],"\n"
returnCode[mobileDeviceList[key]]=partitionedCode[key]
print ""
return returnCode
def check_expected_output(filename):
input_file = 'js/%s.js' % filename
expect_file = input_file + '.expect'
if not os.path.exists(expect_file):
raise SkipTest('No expect file for test ' + filename)
with open(input_file) as f, open(expect_file) as g:
parser = Parser()
tree = parser.parse(f.read())
visitor = ConstantReductionVisitor()
tree = visitor.visit(tree)
js = tree.to_ecma().strip()
expected_output = g.read().strip()
if js != expected_output:
print 'Expected:'
print expected_output
print ''
print 'Got:'
print js
assert False
def get_forecast(link):
html_doc = urllib2.urlopen(link).read()
soup = BeautifulSoup(html_doc, "html.parser")
forecast_text = soup.find("div", id="div_wgfcst1").find("script").string
parser = Parser()
forecast_tree = parser.parse(forecast_text)
full_data = {parse_key(node.left):parse_value(node.right)
for node in nodevisitor.visit(forecast_tree)
if isinstance(node, ast.Assign)}
forecast_tree = parser.parse(forecast_text)
forecast = {parse_key(node.left):parse_array(node.right)
for node in nodevisitor.visit(forecast_tree)
if isinstance(node, ast.Assign) and isinstance(node.right, ast.Array)}
full_data.update(forecast)
return full_data
def parse_global_js_for_access_id_action_url(global_js):
parser = Parser()
tree = parser.parse(global_js)
parts = ['protocol', 'roDomain', 'ro', 'rt']
UrlParts = namedtuple('UrlParts', parts)
url_parts = UrlParts([], [], [], [])
getvalue = operator.attrgetter('value')
err = "Too many '{}' assignments in global.js."
for node in nodevisitor.visit(tree):
if isinstance(node, ast.Assign):
try:
left_value = getvalue(node.left).strip('\'"')
except AttributeError:
continue
if left_value in parts:
right_value = getvalue(node.right).strip('\'"')
assert right_value not in getattr(url_parts, left_value), err.format('protocol')
getattr(url_parts, left_value).append(right_value)
return url_parts.protocol[0] + url_parts.roDomain[0] + url_parts.ro[0] + url_parts.rt[0]
def post(self):
print self.request
print "request: %s" % self.request.body
request_data = json.loads(self.request.body)
javascript = request_data["javascript"].replace(u'\u200b', "")
print(javascript)
parser = Parser()
tree = parser.parse(javascript)
jsnodes = []
functions = []
calls = []
for node in nodevisitor.visit(tree):
try:
node_id = node.identifier.to_ecma()
jsnodes.append(node)
if isinstance(node, ast.FunctionCall) \
or isinstance(node, ast.Identifier):
calls.append(node)
if isinstance(node, ast.FuncDecl):
functions.append(node)
except AttributeError, e:
pass
def _addscript(self, path, date, url, script):
checksum = sha1(script).digest()
if redis_db.sadd("js_script_checksums", checksum):
self.last["script_checksum"] = hexlify(checksum)
try:
js_parser = JSParser()
js_parser.parse(script)
except Exception:
# Keep unparsable scripts as 'bad' script if they don't look like HTML.
mime_type = magic.from_buffer(script.replace("\v", " "), mime=True)
if mime_type == "text/html" or mime_type == "application/xml":
return
print >>sys.stderr, "Cannot parse " + path
path = ".bad/" + path
header = "// Retrieved %sfrom %s\n" % (date + ", " if date else "", url)
path = args.prefix + "/" + path
try:
os.makedirs(os.path.dirname(path))
except OSError:
pass
jsfile = open(path, "w")
jsfile.write(header)
jsfile.write(script)
jsfile.close()
def _js_design_as_doc(self, filepath):
dir, filename = os.path.split(filepath)
name, ext = os.path.splitext(filename)
with open(filepath) as f:
js = f.read()
parser = Parser()
tree = parser.parse(js)
views = {}
for node in tree:
if isinstance(node, ast.VarStatement):
for child in node.children():
for grandchild in child.children():
if isinstance(grandchild, ast.Identifier):
view = {}
view_name = grandchild.value
views[view_name] = view
if isinstance(grandchild, ast.Object):
for named in grandchild.children():
function_name = None
function_body = None
for kv in named.children():
if isinstance(kv, ast.Identifier) and kv.value in VIEW_FUNCTION_NAMES:
function_name = kv.value
if isinstance(kv, ast.FuncExpr):
function_body = kv.to_ecma()
if function_name and function_body:
view[function_name] = function_body
return {"_id": "_design/%s" % name,
"views": views}
def setUp(self):
self.walker = ASTWalker()
self.jstree = JSParser()
