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How to use marked_func method in Slash

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viewset.py

Source:viewset.py

1from typing import Callable, List, Sequence, Union2from fastapi import APIRouter, Header3from fastapi.params import Depends4from pydantic import BaseModel5from .crudset import BaseCrudSet6__all__ = ['ViewSet', 'CrudViewSet']7supported_methods_names: List[str] = [8    'list', 'retrieve', 'create', 'update', 'partial_update', 'destroy']9class ViewSet:10    """ router: APIRouter = None11    base_path: str = None12    class_tag: str = None13    path_key: str = "id"14    response_model: BaseModel = None15    dependencies: Sequence[Depends] = None16    """17    router: APIRouter = None18    base_path: str = None19    class_tag: str = None20    path_key: str = "id"21    response_model: BaseModel = None22    dependencies: Sequence[Depends] = None23    marked_functions: List = []24    def __init__(self) -> APIRouter:25        self.functions: List[Callable] = []26        self.extra_functions: List[List] = []27        self.execute()28    def get_response_model(self, action: str) -> Union[BaseModel, None]:29        """ if override this method, you can return different response model for different action """30        if self.response_model is not None:31            return self.response_model32        return None33    def get_dependencies(self, action: str) -> Sequence[Depends]:34        """ if override this method, you can return different dependencies for different action """35        if self.dependencies is not None:36            return self.dependencies37        return None38    def execute(self) -> APIRouter:39        if self.router is None:40            self.router = APIRouter()41        if self.base_path is None:42            self.base_path = '/' + self.__class__.__name__.lower()43        if self.class_tag is None:44            self.class_tag = self.__class__.__name__45        for func in supported_methods_names:46            if hasattr(self, func):47                self.functions.append(getattr(self, func))48        for func in self.functions:49            self._register_route(func)50        for func, methods, path in self.find_marked_functions():51            self._register_extra_route(func, methods=methods, path=path)52    def _register_route(self, func: Callable, hidden_params: List[str] = ["self"]):53        # hidden_params TODO: add support for hidden params54        extras = {}55        extras['response_model'] = self.get_response_model(func.__name__)56        extras['dependencies'] = self.get_dependencies(func.__name__)57        if func.__name__ == 'list':58            self.router.add_api_route(self.base_path, func, tags=[59                                      self.class_tag], methods=['GET'], **extras)60        elif func.__name__ == 'retrieve':61            self.router.add_api_route(f"{self.base_path}/\u007b{self.path_key}\u007d", func, tags=[62                                      self.class_tag], methods=['GET'], **extras)63        elif func.__name__ == 'create':64            self.router.add_api_route(self.base_path, func, tags=[65                                      self.class_tag], methods=['POST'], **extras)66        elif func.__name__ == 'update':67            self.router.add_api_route(f"{self.base_path}/\u007b{self.path_key}\u007d", func, tags=[68                                      self.class_tag], methods=['PUT'], **extras)69        elif func.__name__ == 'partial_update':70            self.router.add_api_route(f"{self.base_path}/\u007b{self.path_key}\u007d", func, tags=[71                                      self.class_tag], methods=['PATCH'], **extras)72        elif func.__name__ == 'destroy':73            self.router.add_api_route(f"{self.base_path}/\u007b{self.path_key}\u007d", func, tags=[74                                      self.class_tag], methods=['DELETE'], **extras)75        else:76            print(f"Method {func.__name__} is not supported")77    def _register_extra_route(self, func: Callable, methods: List[str] = ["GET"], path: str = None):78        extras = {}79        extras['response_model'] = self.get_response_model(func.__name__)80        extras['dependencies'] = self.get_dependencies(func.__name__)81        if path is None:82            path = func.__name__83        self.router.add_api_route(f"{self.base_path}{path}", func, tags=[84                                  self.class_tag], methods=methods, **extras)85    @classmethod86    def extra_method(cls, methods: List[str] = ["GET"], path_key: str = None):87        """ if you want to add extra method to the viewset, you can use this decorator """88        def decorator(func):89            cls.marked_functions.append([func, methods, path_key])90            return func91        return decorator92    def find_marked_functions(self):93        for func in dir(self):94            for marked_func in self.marked_functions:95                if func == marked_func[0].__name__:96                    self.extra_functions.append(marked_func)97                    self.marked_functions.remove(marked_func)98                    break99        return self.extra_functions100class CrudViewSet(ViewSet):101    """102    This is the base viewset for CRUD operations.103    """104    crud: BaseCrudSet = None105    model: BaseModel = None106    async_db = False107    def __init__(self):108        assert self.crud is not None, "You must define crud model"109        assert self.model is not None, "You must define model"110        self._crud = self.crud()111        super().__init__()112    async def list(self) -> List[model]:113        if self.async_db:114            return await self._crud.list()115        return self._crud.list()116    async def retrieve(self, id: int) -> model:117        if self.async_db:118            return await self._crud.retrieve(id)119        return self._crud.retrieve(id)120    async def create(self, data: model) -> model:121        if self.async_db:122            return await self._crud.create(data)123        return self._crud.create(data)124    async def update(self, id: int, data: model) -> model:125        if self.async_db:126            return await self._crud.update(id, data)127        return self._crud.update(id, data)128    async def partial_update(self, id: int, data: model) -> model:129        if self.async_db:130            return await self._crud.partial_update(id, data)131        return self._crud.partial_update(id, data)132    async def destroy(self, id: int) -> model:133        if self.async_db:134            return await self._crud.destroy(id)...

findCallChains.py

Source:findCallChains.py

12import idaapi34# tcp_v4_rcv5#START_EA = 0xC1780B106START_EA = 0x000000000002A5E078# mark drop functions9#TARGET_EA = 0xC16FAB0010#TARGET_EA = 0x0807320411#TARGET_EA = 0x0801732012#TARGET_EA = 0x0801FF6713#TARGET_EA = 0x0801033F14#TARGET_EA = 0x0801AE28    # set state TCP_NEW_SYN_RECV15TARGET_EA = 0x0000000000017240 # tcp_drop1617entry_func = idaapi.get_func(START_EA)18entry_func_name = Name(entry_func.startEA) or "Entry"19marked_func = idaapi.get_func(TARGET_EA)20marked_func_name = Name(marked_func.startEA) or "MarkedFunc"2122# debug output23print("Entry Function Address: %x" % START_EA)24print("Entry Function Name: '%s'" % entry_func_name)25print("Marked Instruction Address: %x" % TARGET_EA)26print("Marked Instruction belongs to function '%s'" % marked_func_name)2728# There are 2 steps:29# 1. Find all possible call chains (no recursive, i.e. recursive level = 1)30# 2. Find all possible paths within each function in the call chain3132# 1. Find all possible call chains33# backwards or fowards? or both at the same time?3435all_call_chains = []3637def convert_call_stack_to_call_chain(call_stack, reverse=False):38    call_chain = []39    sorted_call_stack = sorted(call_stack.iteritems(), key=lambda (k,v): v['level'], reverse=reverse)4041    for k, v in sorted_call_stack:42        call_chain.append([k, v['start_ea'], v['call_site'], v['level']])4344    # quickfix45    if reverse:46        for i in range(len(call_chain)):47            call_chain[i][3] = len(call_chain) - 1 - call_chain[i][3] 48    else:49        for i in range(len(call_chain)-1):50            call_chain[i][2] = call_chain[i+1][2]51        call_chain[-1][2] = 05253    return call_chain545556# ~75s57def find_call_chain_forward(curr_func, target_func, call_stack, curr_level):58    global fd59    #fd.write("Current Func: %s\n" % (Name(curr_func.startEA) or "N/A"))60    if curr_func == target_func:61        all_call_chains.append(convert_call_stack_to_call_chain(call_stack))62        return6364    for i in FuncItems(curr_func.startEA):65        for xref in XrefsFrom(i, 0):66            #fd.write("%s calls %s from 0x%x. Type: %d" % (Name(curr_func.startEA), Name(xref.to), i, xref.type))67            #fd.write("\n")68            if xref.type == fl_CN or xref.type == fl_CF:69                callee = idaapi.get_func(xref.to)70                callee_name = Name(callee.startEA) or "N/A" 71                if callee_name not in call_stack:72                    curr_level += 173                    call_stack[callee_name] = {'level': curr_level, 'start_ea': callee.startEA, 'call_site': i}74                    find_call_chain_forward(callee, target_func, call_stack, curr_level)75                    del call_stack[callee_name]76                    curr_level -= 17778# ~25s79def find_call_chain_forward2(curr_func, target_func, call_stack, curr_level):80    global fd81    #fd.write("Current Func: %s\n" % (Name(curr_func.startEA) or "N/A"))82    if curr_func == target_func:83        all_call_chains.append(convert_call_stack_to_call_chain(call_stack))84        return8586    for i in FuncItems(curr_func.startEA):87        for ref in CodeRefsFrom(i, 0):88            callee = idaapi.get_func(ref)89            callee_name = Name(callee.startEA) or "N/A" 90            if callee_name not in call_stack:91                curr_level += 192                call_stack[callee_name] = {'level': curr_level, 'start_ea': callee.startEA, 'call_site': i}93                find_call_chain_forward2(callee, target_func, call_stack, curr_level)94                del call_stack[callee_name]95                curr_level -= 19697# ~1s98def find_call_chain_backward(curr_func, target_func, call_stack, curr_level):99    global fd100    if curr_func == target_func:101        all_call_chains.append(convert_call_stack_to_call_chain(call_stack, True))102        return103104    for xref in XrefsTo(curr_func.startEA, 0):105        if xref.type == fl_CN or xref.type == fl_CF:106            caller = idaapi.get_func(idc.GetFunctionAttr(xref.frm, idc.FUNCATTR_START))107            caller_name = Name(caller.startEA) or "N/A"108            if caller_name not in call_stack:109                curr_level += 1110                call_stack[caller_name] = {'level': curr_level, 'start_ea': caller.startEA, 'call_site': xref.frm}111                find_call_chain_backward(caller, target_func, call_stack, curr_level)112                del call_stack[caller_name]113                curr_level -= 1114115# ~1s116def find_call_chain_backward2(curr_func, target_func, call_stack, curr_level):117    global fd118    if curr_func == target_func:119        all_call_chains.append(convert_call_stack_to_call_chain(call_stack, True))120        return121122    for ref in CodeRefsTo(curr_func.startEA, 0):123        caller = idaapi.get_func(idc.GetFunctionAttr(ref, idc.FUNCATTR_START))124        if caller:125            caller_name = Name(caller.startEA) or "N/A"126            if caller_name not in call_stack:127                curr_level += 1128                call_stack[caller_name] = {'level': curr_level, 'start_ea': caller.startEA, 'call_site': ref}129                find_call_chain_backward2(caller, target_func, call_stack, curr_level)130                del call_stack[caller_name]131                curr_level -= 1132133134file = AskFile(1, "*.txt", "Select output file")135fd = open(file, 'w')136137# forwards138#find_call_chain_forward2(entry_func, marked_func, {entry_func_name: {'level': 0, 'start_ea': START_EA, 'call_site': 0}}, 0)139# backwards140find_call_chain_backward2(marked_func, entry_func, {marked_func_name: {'level': 0, 'start_ea': marked_func.startEA, 'call_site': TARGET_EA}}, 0)141142for cc in all_call_chains:143    func_name, start_ea, call_site, lvl = cc[0]144    fd.write("%s,%x,%x" % (func_name, start_ea, call_site))145    for func_name, start_ea, call_site, lvl in cc[1:]:146        fd.write("|%s,%x,%x" % (func_name, start_ea, call_site))147    fd.write("\n")148149#f = idaapi.FlowChart(get_func(idc.ScreenEA()))150151fd.close()
...

test_function_marker.py

Source:test_function_marker.py

...21    assert function_marker('bla').get_value(func, 1) == 122def test_marker_on_methods(marker):23    class Obj(object):24        @marker25        def marked_func(self):26            pass27        def unmarked_func(self):28            pass29        @classmethod30        def unmarked_classmethod(cls):31            pass32        @staticmethod33        def unmarked_staticmethod(param):34            pass35        @marker36        @classmethod37        def marked_classmethod(cls):38            pass39        @marker40        @staticmethod41        def marked_staticmethod():...

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