def do_POST(self):
LogTrace("Received request: " + self.path + " on thread " +
threading.currentThread().getName())
try:
length = int(self.headers["Content-Length"])
# Read in the request body without blocking
self.connection.settimeout(SOCKET_READ_TIMEOUT)
requestBody = self.rfile.read(length)
# Put the connection back into blocking mode so rfile/wfile can be used safely
self.connection.settimeout(None)
if len(requestBody) < length:
# This could be a broken connection, writing an error message into it could be a bad idea
# See http://bugs.python.org/issue14574
LogTrace("Read " + str(len(requestBody)) +
" bytes but Content-Length is " + str(length))
return
LogTrace("Request body: " + requestBody)
rawRequest = json.loads(requestBody)
request = SymbolicationRequest(gSymFileManager, rawRequest)
if not request.isValidRequest:
LogTrace("Unable to parse request")
self.sendHeaders(400)
return
except Exception as e:
LogTrace("Unable to parse request body: " + str(e))
# Ensure connection is back in blocking mode so rfile/wfile can be used safely
self.connection.settimeout(None)
self.sendHeaders(400)
return
try:
self.sendHeaders(200)
response = {'symbolicatedStacks': []}
for stackIndex in range(len(request.stacks)):
symbolicatedStack = request.Symbolicate(stackIndex)
# Free up memory ASAP
request.stacks[stackIndex] = []
response['symbolicatedStacks'].append(symbolicatedStack)
response['knownModules'] = request.knownModules[:]
if not request.includeKnownModulesInResponse:
response = response['symbolicatedStacks']
request.Reset()
LogTrace("Response: " + json.dumps(response))
self.wfile.write(json.dumps(response))
except Exception as e:
LogTrace("Exception in do_POST: " + str(e))
def _resolve_symbols(self, symbols_to_resolve):
memoryMap = []
processedStack = []
all_symbols = []
for moduleIndex, library_with_symbols in enumerate(symbols_to_resolve):
lib = library_with_symbols["library"]
symbols = library_with_symbols["symbols"]
memoryMap.append(self._module_from_lib(lib))
all_symbols += symbols
for symbol in symbols:
processedStack.append([moduleIndex, int(symbol, 0) - lib["start"]])
rawRequest = { "stacks": [processedStack], "memoryMap": memoryMap, "version": 4, "symbolSources": ["FIREFOX", "WINDOWS"] }
request = SymbolicationRequest(self.sym_file_manager, rawRequest)
if not request.isValidRequest:
print "invalid request"
return {}
symbolicated_stack = request.Symbolicate(0)
return dict(zip(all_symbols, symbolicated_stack))
def get_unknown_modules_in_profile(self, profile_json):
if "libs" not in profile_json:
return []
shared_libraries = json.loads(profile_json["libs"])
memoryMap = []
for lib in shared_libraries:
memoryMap.append(self._module_from_lib(lib))
rawRequest = { "stacks": [[]], "memoryMap": memoryMap, "version": 4, "symbolSources": ["FIREFOX", "WINDOWS"] }
request = SymbolicationRequest(self.sym_file_manager, rawRequest)
if not request.isValidRequest:
return []
request.Symbolicate(0) # This sets request.knownModules
unknown_modules = []
for i, lib in enumerate(shared_libraries):
if not request.knownModules[i]:
unknown_modules.append(lib)
return unknown_modules
def processSymbolicationRequest(rawRequest, remoteIp):
decodedRequest = json.loads(rawRequest)
request = SymbolicationRequest(gSymFileManager, decodedRequest, remoteIp)
if not request.isValidRequest:
LogDebug("Unable to parse request", remoteIp)
return None
response = { 'symbolicatedStacks': [] }
for stackIndex in range(len(request.stacks)):
symbolicatedStack = request.Symbolicate(stackIndex)
# Free up memory ASAP
request.stacks[stackIndex] = []
response['symbolicatedStacks'].append(symbolicatedStack)
response['knownModules'] = request.knownModules[:]
if not request.includeKnownModulesInResponse:
response = response['symbolicatedStacks']
request.Reset()
return json.dumps(response)
def find_symbol(lib_name, offset):
rawRequest = { "stacks": [[[0, int(offset, 0)]]], "memoryMap": [moduleDict[lib_name]], "version": 3, "osName": "Windows", "appName": "Firefox" }
request = SymbolicationRequest(symbolicator.sym_file_manager, rawRequest)
symbolicated_stack = request.Symbolicate(0)
return symbolicated_stack[0]