Fuzz introspector: fuzz_auth
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
288 4 ...fuzz_auth.ServerThread.__init__ call site: 00004 requests.sessions.Session.get
2 0 EP call site: 00000 ...fuzz_auth.ServerThread.__init__

Fuzzer calltree

0 ...fuzz_auth.TestInput [function] [call site] 00000
1 atheris.FuzzedDataProvider [function] [call site] 00001
1 ...fuzz_auth.ServerThread.__init__ [function] [call site] 00002
2 socket.socket [function] [call site] 00003
2 threading.Thread.__init__ [function] [call site] 00004
1 threading.Thread.start [function] [call site] 00005
1 fdp.ConsumeString [function] [call site] 00006
1 fdp.ConsumeString [function] [call site] 00007
1 urllib.parse.quote [function] [call site] 00008
1 fdp.ConsumeString [function] [call site] 00009
1 fdp.ConsumeString [function] [call site] 00010
1 urllib.parse.quote [function] [call site] 00011
1 fdp.ConsumeString [function] [call site] 00012
1 requests.get [function] [call site] 00013
1 fdp.ConsumeString [function] [call site] 00014
1 requests.sessions.Session.get [function] [call site] 00015
2 kwargs.setdefault [function] [call site] 00016
2 requests.sessions.Session.request [function] [call site] 00017
3 requests.models.Request.__init__ [function] [call site] 00018
4 requests.hooks.default_hooks [function] [call site] 00019
4 hooks.items [function] [call site] 00020
4 <builtin>.list [function] [call site] 00021
4 requests.models.RequestHooksMixin.register_hook [function] [call site] 00022
5 <builtin>.isinstance [function] [call site] 00023
5 <builtin>.hasattr [function] [call site] 00024
5 <builtin>.isinstance [function] [call site] 00025
3 method.upper [function] [call site] 00026
3 requests.sessions.Session.prepare_request [function] [call site] 00027
4 <builtin>.isinstance [function] [call site] 00028
4 requests.cookies.cookiejar_from_dict [function] [call site] 00029
5 http.cookiejar.CookieJar.__init__ [function] [call site] 00030
5 requests.cookies.create_cookie [function] [call site] 00031
6 <builtin>.set [function] [call site] 00032
6 <builtin>.set [function] [call site] 00033
6 result.update [function] [call site] 00034
6 <builtin>.bool [function] [call site] 00035
6 <builtin>.bool [function] [call site] 00036
6 <builtin>.bool [function] [call site] 00037
6 http.cookiejar.Cookie [function] [call site] 00038
5 urllib.parse.quote._cookies.set_cookie [function] [call site] 00039
5 collections.abc.MutableMapping.url._cookies.set_cookie [function] [call site] 00040
5 requests.cookies.RequestsCookieJar.set_cookie [function] [call site] 00041
6 <builtin>.hasattr [function] [call site] 00042
6 urllib.parse.quote._cookies.value.startswith [function] [call site] 00043
6 collections.abc.MutableMapping.url._cookies.value.startswith [function] [call site] 00044
6 urllib.parse.quote._cookies.value.endswith [function] [call site] 00045
6 collections.abc.MutableMapping.url._cookies.value.endswith [function] [call site] 00046
6 urllib.parse.quote._cookies.value.replace [function] [call site] 00047
6 collections.abc.MutableMapping.url._cookies.value.replace [function] [call site] 00048
6 <builtin>.super [function] [call site] 00049
4 requests.cookies.merge_cookies [function] [call site] 00050
5 <builtin>.isinstance [function] [call site] 00051
5 <builtin>.isinstance [function] [call site] 00052
5 requests.cookies.cookiejar_from_dict [function] [call site] 00053
5 <builtin>.isinstance [function] [call site] 00054
5 collections.abc.MutableMapping.url._cookies.update [function] [call site] 00055
5 urllib.parse.quote._cookies.update [function] [call site] 00056
5 requests.cookies.RequestsCookieJar.update [function] [call site] 00057
6 <builtin>.isinstance [function] [call site] 00058
6 requests.cookies.RequestsCookieJar.set_cookie [function] [call site] 00059
6 <builtin>.super [function] [call site] 00060
5 urllib.parse.quote._cookies.set_cookie [function] [call site] 00061
5 collections.abc.MutableMapping.url._cookies.set_cookie [function] [call site] 00062
5 requests.cookies.RequestsCookieJar.set_cookie [function] [call site] 00063
4 http.cookiejar.CookieJar.__init__ [function] [call site] 00064
4 requests.cookies.merge_cookies [function] [call site] 00065
4 requests.utils.get_netrc_auth [function] [call site] 00066
5 os.environ.get [function] [call site] 00067
5 os.path.expanduser [function] [call site] 00068
5 os.path.exists [function] [call site] 00069
5 urllib.parse.urlparse [function] [call site] 00070
5 netrc.netrc [function] [call site] 00071
5 netrc.netrc.authenticators [function] [call site] 00072
4 urllib.parse.quote [function] [call site] 00073
4 collections.abc.MutableMapping.url [function] [call site] 00074
4 collections.abc.MutableMapping.url.prepare [function] [call site] 00075
4 urllib.parse.quote.prepare [function] [call site] 00076
4 request.method.upper [function] [call site] 00077
4 requests.sessions.merge_setting [function] [call site] 00078
5 <builtin>.isinstance [function] [call site] 00079
5 <builtin>.isinstance [function] [call site] 00080
5 requests.utils.to_key_val_list [function] [call site] 00081
6 <builtin>.isinstance [function] [call site] 00082
6 <builtin>.isinstance [function] [call site] 00083
6 collections.abc.MutableMapping.url.items [function] [call site] 00084
6 urllib.parse.quote.items [function] [call site] 00085
6 <builtin>.list [function] [call site] 00086
5 urllib.parse.quote [function] [call site] 00087
5 collections.OrderedDict [function] [call site] 00088
5 collections.abc.MutableMapping.url [function] [call site] 00089
5 requests.utils.to_key_val_list [function] [call site] 00090
5 collections.abc.MutableMapping.url.update [function] [call site] 00091
5 urllib.parse.quote.update [function] [call site] 00092
5 collections.abc.MutableMapping.url.items [function] [call site] 00093
5 urllib.parse.quote.items [function] [call site] 00094
4 requests.sessions.merge_setting [function] [call site] 00095
4 requests.sessions.merge_setting [function] [call site] 00096
4 requests.sessions.merge_hooks [function] [call site] 00097
5 collections.abc.MutableMapping.url.get [function] [call site] 00098
5 urllib.parse.quote.get [function] [call site] 00099
5 collections.abc.MutableMapping.url.get [function] [call site] 00100
5 urllib.parse.quote.get [function] [call site] 00101
5 requests.sessions.merge_setting [function] [call site] 00102
3 requests.sessions.Session.merge_environment_settings [function] [call site] 00103
4 collections.abc.MutableMapping.url.get [function] [call site] 00104
4 urllib.parse.quote.get [function] [call site] 00105
4 requests.utils.get_environ_proxies [function] [call site] 00106
5 requests.utils.should_bypass_proxies [function] [call site] 00107
6 requests.utils.should_bypass_proxies.get_proxy [function] [call site] 00108
7 os.environ.get [function] [call site] 00109
7 key.upper [function] [call site] 00110
7 os.environ.get [function] [call site] 00111
6 urllib.parse.urlparse [function] [call site] 00112
6 no_proxy.replace [function] [call site] 00113
6 requests.utils.is_ipv4_address [function] [call site] 00114
7 socket.inet_aton [function] [call site] 00115
6 requests.utils.is_valid_cidr [function] [call site] 00116
7 string_network.count [function] [call site] 00117
7 string_network.split [function] [call site] 00118
7 <builtin>.int [function] [call site] 00119
7 string_network.split [function] [call site] 00120
7 socket.inet_aton [function] [call site] 00121
6 requests.utils.address_in_network [function] [call site] 00122
7 socket.inet_aton [function] [call site] 00123
7 struct.unpack [function] [call site] 00124
7 net.split [function] [call site] 00125
7 <builtin>.int [function] [call site] 00126
7 requests.utils.dotted_netmask [function] [call site] 00127
8 struct.pack [function] [call site] 00128
8 socket.inet_ntoa [function] [call site] 00129
7 socket.inet_aton [function] [call site] 00130
7 struct.unpack [function] [call site] 00131
7 socket.inet_aton [function] [call site] 00132
7 struct.unpack [function] [call site] 00133
6 urllib.parse.urlparse.hostname.endswith [function] [call site] 00134
6 urllib.parse.urlparse.hostname.endswith [function] [call site] 00135
6 requests.utils.set_environ [function] [call site] 00136
7 os.environ.get [function] [call site] 00137
6 urllib.request.proxy_bypass [function] [call site] 00138
5 urllib.request.getproxies [function] [call site] 00139
4 urllib.request.getproxies.items [function] [call site] 00140
4 urllib.parse.quote.setdefault [function] [call site] 00141
4 collections.abc.MutableMapping.url.setdefault [function] [call site] 00142
4 os.environ.get [function] [call site] 00143
4 os.environ.get [function] [call site] 00144
4 requests.sessions.merge_setting [function] [call site] 00145
4 requests.sessions.merge_setting [function] [call site] 00146
4 requests.sessions.merge_setting [function] [call site] 00147
4 requests.sessions.merge_setting [function] [call site] 00148
3 send_kwargs.update [function] [call site] 00149
3 requests.sessions.Session.send [function] [call site] 00150
4 kwargs.setdefault [function] [call site] 00151
4 kwargs.setdefault [function] [call site] 00152
4 kwargs.setdefault [function] [call site] 00153
4 requests.utils.resolve_proxies [function] [call site] 00154
5 urllib.parse.urlparse [function] [call site] 00155
5 collections.abc.MutableMapping.url.get [function] [call site] 00156
5 urllib.parse.quote.get [function] [call site] 00157
5 urllib.parse.quote.copy [function] [call site] 00158
5 collections.abc.MutableMapping.url.copy [function] [call site] 00159
5 requests.utils.should_bypass_proxies [function] [call site] 00160
5 requests.utils.get_environ_proxies [function] [call site] 00161
5 urllib.request.getproxies.get [function] [call site] 00162
5 requests.utils.get_environ_proxies.<dict1>.get [function] [call site] 00163
5 urllib.request.getproxies.get [function] [call site] 00164
5 requests.utils.get_environ_proxies.<dict1>.get [function] [call site] 00165
5 urllib.parse.quote.setdefault [function] [call site] 00166
5 collections.abc.MutableMapping.url.setdefault [function] [call site] 00167
4 <builtin>.isinstance [function] [call site] 00168
4 kwargs.pop [function] [call site] 00169
4 kwargs.get [function] [call site] 00170
4 requests.sessions.Session.get_adapter [function] [call site] 00171
5 collections.OrderedDict.items [function] [call site] 00172
5 prefix.lower [function] [call site] 00173
5 collections.abc.MutableMapping.url.lower [function] [call site] 00174
5 urllib.parse.quote.lower [function] [call site] 00175
4 time.perf_counter [function] [call site] 00176
4 adapter.send [function] [call site] 00177
4 time.perf_counter [function] [call site] 00178
4 datetime.timedelta [function] [call site] 00179
4 requests.hooks.dispatch_hook [function] [call site] 00180
5 collections.abc.MutableMapping.url.hooks.get [function] [call site] 00181
5 collections.abc.MutableMapping.url.get [function] [call site] 00182
5 urllib.parse.quote.get [function] [call site] 00183
5 urllib.parse.quote.hooks.get [function] [call site] 00184
5 <builtin>.hasattr [function] [call site] 00185
5 urllib.parse.quote [function] [call site] 00186
5 collections.abc.MutableMapping.url.hooks [function] [call site] 00187
5 collections.abc.MutableMapping.url [function] [call site] 00188
5 urllib.parse.quote.hooks [function] [call site] 00189
4 requests.cookies.extract_cookies_to_jar [function] [call site] 00190
5 <builtin>.hasattr [function] [call site] 00191
5 requests.cookies.MockRequest.__init__ [function] [call site] 00192
6 urllib.parse.urlparse [function] [call site] 00193
5 requests.cookies.MockResponse.__init__ [function] [call site] 00194
5 urllib.parse.quote._cookies.extract_cookies [function] [call site] 00195
5 http.cookiejar.CookieJar.extract_cookies [function] [call site] 00196
5 collections.abc.MutableMapping.url._cookies.extract_cookies [function] [call site] 00197
4 requests.cookies.extract_cookies_to_jar [function] [call site] 00198
4 requests.sessions.SessionRedirectMixin.resolve_redirects [function] [call site] 00199
5 requests.sessions.SessionRedirectMixin.get_redirect_target [function] [call site] 00200
6 collections.abc.MutableMapping.url.encode [function] [call site] 00201
6 urllib.parse.quote.encode [function] [call site] 00202
6 requests._internal_utils.to_native_string [function] [call site] 00203
7 <builtin>.isinstance [function] [call site] 00204
7 urllib.parse.quote.decode [function] [call site] 00205
7 collections.abc.MutableMapping.url.decode [function] [call site] 00206
5 urllib.parse.urlparse [function] [call site] 00207
5 urllib.parse.quote.copy [function] [call site] 00208
5 collections.abc.MutableMapping.url.copy [function] [call site] 00209
5 hist.append [function] [call site] 00210
5 urllib.parse.quote.raw.read [function] [call site] 00211
5 collections.abc.MutableMapping.url.raw.read [function] [call site] 00212
5 <builtin>.len [function] [call site] 00213
5 collections.abc.MutableMapping.url.close [function] [call site] 00214
5 urllib.parse.quote.close [function] [call site] 00215
5 collections.abc.MutableMapping.url.startswith [function] [call site] 00216
5 urllib.parse.quote.startswith [function] [call site] 00217
5 urllib.parse.urlparse [function] [call site] 00218
5 urllib.parse.urlparse [function] [call site] 00219
5 urllib.parse.urlparse._replace [function] [call site] 00220
5 urllib.parse.urlparse.geturl [function] [call site] 00221
5 requests.utils.requote_uri [function] [call site] 00222
6 requests.utils.unquote_unreserved [function] [call site] 00223
7 collections.abc.MutableMapping.url.split [function] [call site] 00224
7 urllib.parse.quote.split [function] [call site] 00225
7 <builtin>.len [function] [call site] 00226
7 <builtin>.range [function] [call site] 00227
7 <builtin>.len [function] [call site] 00228
7 h.isalnum [function] [call site] 00229
7 <builtin>.int [function] [call site] 00230
7 <builtin>.chr [function] [call site] 00231
6 urllib.parse.quote [function] [call site] 00232
6 collections.abc.MutableMapping.url [function] [call site] 00233
6 urllib.parse.quote [function] [call site] 00234
6 collections.abc.MutableMapping.url [function] [call site] 00235
5 urllib.parse.quote [function] [call site] 00236
5 collections.abc.MutableMapping.url [function] [call site] 00237
5 requests.utils.requote_uri [function] [call site] 00238
5 requests._internal_utils.to_native_string [function] [call site] 00239
5 requests.sessions.SessionRedirectMixin.rebuild_method [function] [call site] 00240
5 urllib.parse.quote.headers.pop [function] [call site] 00241
5 collections.abc.MutableMapping.url.headers.pop [function] [call site] 00242
5 urllib.parse.quote.pop [function] [call site] 00243
5 collections.abc.MutableMapping.url.pop [function] [call site] 00244
5 urllib.parse.quote.headers.pop [function] [call site] 00245
5 collections.abc.MutableMapping.url.headers.pop [function] [call site] 00246
5 requests.cookies.extract_cookies_to_jar [function] [call site] 00247
5 requests.cookies.merge_cookies [function] [call site] 00248
5 urllib.parse.quote.prepare_cookies [function] [call site] 00249
5 collections.abc.MutableMapping.url.prepare_cookies [function] [call site] 00250
5 requests.sessions.SessionRedirectMixin.rebuild_proxies [function] [call site] 00251
6 urllib.parse.urlparse [function] [call site] 00252
6 requests.utils.resolve_proxies [function] [call site] 00253
6 requests.utils.get_auth_from_url [function] [call site] 00254
7 urllib.parse.urlparse [function] [call site] 00255
7 urllib.parse.unquote [function] [call site] 00256
7 urllib.parse.unquote [function] [call site] 00257
6 urllib.parse.urlparse.scheme.startswith [function] [call site] 00258
6 requests.auth._basic_auth_str [function] [call site] 00259
7 <builtin>.isinstance [function] [call site] 00260
7 warnings.warn [function] [call site] 00261
7 <builtin>.isinstance [function] [call site] 00262
7 warnings.warn [function] [call site] 00263
7 <builtin>.type [function] [call site] 00264
7 <builtin>.isinstance [function] [call site] 00265
7 collections.abc.MutableMapping.url.encode [function] [call site] 00266
7 urllib.parse.quote.encode [function] [call site] 00267
7 <builtin>.isinstance [function] [call site] 00268
7 collections.abc.MutableMapping.url.encode [function] [call site] 00269
7 urllib.parse.quote.encode [function] [call site] 00270
7 requests._internal_utils.to_native_string [function] [call site] 00271
7 base64.b64encode [function] [call site] 00272
7 base64.b64encode.strip [function] [call site] 00273
5 requests.sessions.SessionRedirectMixin.rebuild_auth [function] [call site] 00274
6 requests.sessions.SessionRedirectMixin.should_strip_auth [function] [call site] 00275
7 urllib.parse.urlparse [function] [call site] 00276
7 urllib.parse.urlparse [function] [call site] 00277
7 DEFAULT_PORTS.get [function] [call site] 00278
6 requests.utils.get_netrc_auth [function] [call site] 00279
6 collections.abc.MutableMapping.url.prepare_auth [function] [call site] 00280
6 urllib.parse.quote.prepare_auth [function] [call site] 00281
5 requests.utils.rewind_body [function] [call site] 00282
6 <builtin>.getattr [function] [call site] 00283
6 <builtin>.isinstance [function] [call site] 00284
5 requests.sessions.Session.send [function] [call site] 00285
5 requests.cookies.extract_cookies_to_jar [function] [call site] 00286
5 requests.sessions.SessionRedirectMixin.get_redirect_target [function] [call site] 00287
4 history.insert [function] [call site] 00288
4 history.pop [function] [call site] 00289
4 <builtin>.next [function] [call site] 00290
4 requests.sessions.SessionRedirectMixin.resolve_redirects [function] [call site] 00291
1 threading.Thread.join [function] [call site] 00292