瘦身: Kafka/MongoDB/Cassandra用raw TCP替代重型依赖

- kafka: 移除IBM/sarama(45MB), 自实现SASL PLAIN+ApiVersions协议(~150行)
- mongodb: 移除mongo-driver(25MB), 自实现OP_MSG+saslStart认证(~180行)
- cassandra: 移除gocql(1.2MB), 自实现CQLv4 STARTUP+SASL PLAIN(~130行)
- 同时移除间接依赖: pierrec/lz4, klauspost/compress, eapache/snappy等

二进制: 47MB → 40MB (-15%), 移除~55MB压缩依赖
全部13个测试包通过

go.mod

@@ -3,12 +3,10 @@ module github.com/shadow1ng/fscan
 go 1.20
 
 require (
-	github.com/IBM/sarama v1.43.3
 	github.com/denisenkom/go-mssqldb v0.12.3
 	github.com/fatih/color v1.18.0
 	github.com/go-ldap/ldap/v3 v3.4.9
 	github.com/go-sql-driver/mysql v1.8.1
-	github.com/gocql/gocql v1.7.0
 	github.com/google/cel-go v0.13.0
 	github.com/google/uuid v1.6.0
 	github.com/gorilla/websocket v1.5.3
@@ -26,7 +24,6 @@ require (
 	github.com/stacktitan/smb v0.0.0-20190531122847-da9a425dceb8
 	github.com/tjfoc/gmsm v1.4.1
 	go.ciq.dev/go-rsync v0.0.0-20240304021629-0a3bb196e6d1
-	go.mongodb.org/mongo-driver v1.17.4
 	golang.org/x/crypto v0.31.0
 	golang.org/x/net v0.32.0
 	golang.org/x/sys v0.28.0
@@ -43,16 +40,10 @@ require (
 	github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 // indirect
 	github.com/alexbrainman/sspi v0.0.0-20231016080023-1a75b4708caa // indirect
 	github.com/antlr/antlr4/runtime/Go/antlr v1.4.10 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/eapache/go-resiliency v1.7.0 // indirect
-	github.com/eapache/go-xerial-snappy v0.0.0-20230731223053-c322873962e3 // indirect
-	github.com/eapache/queue v1.1.0 // indirect
 	github.com/geoffgarside/ber v1.1.0 // indirect
 	github.com/go-asn1-ber/asn1-ber v1.5.7 // indirect
 	github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe // indirect
 	github.com/golang-sql/sqlexp v0.1.0 // indirect
-	github.com/golang/snappy v0.0.4 // indirect
-	github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed // indirect
 	github.com/hashicorp/errwrap v1.0.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/go-uuid v1.0.3 // indirect
@@ -63,19 +54,12 @@ require (
 	github.com/jcmturner/gokrb5/v8 v8.4.4 // indirect
 	github.com/jcmturner/rpc/v2 v2.0.3 // indirect
 	github.com/kaiakz/ubuffer v0.0.0-20200803053910-dd1083087166 // indirect
-	github.com/klauspost/compress v1.17.9 // indirect
+	github.com/kr/pretty v0.3.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/montanaflynn/stats v0.7.1 // indirect
-	github.com/pierrec/lz4/v4 v4.1.21 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 // indirect
 	github.com/rogpeppe/go-internal v1.12.0 // indirect
 	github.com/stoewer/go-strcase v1.2.0 // indirect
-	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
-	github.com/xdg-go/scram v1.1.2 // indirect
-	github.com/xdg-go/stringprep v1.0.4 // indirect
-	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
 	golang.org/x/sync v0.11.0 // indirect
-	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 )

go.sum

@@ -8,37 +8,25 @@ github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 h1:mFRzDkZVAjdal+
 github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358/go.mod h1:chxPXzSsl7ZWRAuOIE23GDNzjWuZquvFlgA8xmpunjU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/toml v1.3.2 h1:o7IhLm0Msx3BaB+n3Ag7L8EVlByGnpq14C4YWiu/gL8=
-github.com/IBM/sarama v1.43.3 h1:Yj6L2IaNvb2mRBop39N7mmJAHBVY3dTPncr3qGVkxPA=
-github.com/IBM/sarama v1.43.3/go.mod h1:FVIRaLrhK3Cla/9FfRF5X9Zua2KpS3SYIXxhac1H+FQ=
 github.com/alexbrainman/sspi v0.0.0-20231016080023-1a75b4708caa h1:LHTHcTQiSGT7VVbI0o4wBRNQIgn917usHWOd6VAffYI=
 github.com/alexbrainman/sspi v0.0.0-20231016080023-1a75b4708caa/go.mod h1:cEWa1LVoE5KvSD9ONXsZrj0z6KqySlCCNKHlLzbqAt4=
 github.com/antlr/antlr4/runtime/Go/antlr v1.4.10 h1:yL7+Jz0jTC6yykIK/Wh74gnTJnrGr5AyrNMXuA0gves=
 github.com/antlr/antlr4/runtime/Go/antlr v1.4.10/go.mod h1:F7bn7fEU90QkQ3tnmaTx3LTKLEDqnwWODIYppRQ5hnY=
-github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932 h1:mXoPYz/Ul5HYEDvkta6I8/rnYM5gSdSV2tJ6XbZuEtY=
-github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932/go.mod h1:NOuUCSz6Q9T7+igc/hlvDOUdtWKryOrtFyIVABv/p7k=
-github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 h1:DDGfHa7BWjL4YnC6+E63dPcxHo2sUxDIu8g3QgEJdRY=
-github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/denisenkom/go-mssqldb v0.12.3 h1:pBSGx9Tq67pBOTLmxNuirNTeB8Vjmf886Kx+8Y+8shw=
 github.com/denisenkom/go-mssqldb v0.12.3/go.mod h1:k0mtMFOnU+AihqFxPMiF05rtiDrorD1Vrm1KEz5hxDo=
 github.com/dnaeon/go-vcr v1.2.0/go.mod h1:R4UdLID7HZT3taECzJs4YgbbH6PIGXB6W/sc5OLb6RQ=
-github.com/eapache/go-resiliency v1.7.0 h1:n3NRTnBn5N0Cbi/IeOHuQn9s2UwVUH7Ga0ZWcP+9JTA=
-github.com/eapache/go-resiliency v1.7.0/go.mod h1:5yPzW0MIvSe0JDsv0v+DvcjEv2FyD6iZYSs1ZI+iQho=
-github.com/eapache/go-xerial-snappy v0.0.0-20230731223053-c322873962e3 h1:Oy0F4ALJ04o5Qqpdz8XLIpNA3WM/iSIXqxtqo7UGVws=
-github.com/eapache/go-xerial-snappy v0.0.0-20230731223053-c322873962e3/go.mod h1:YvSRo5mw33fLEx1+DlK6L2VV43tJt5Eyel9n9XBcR+0=
-github.com/eapache/queue v1.1.0 h1:YOEu7KNc61ntiQlcEeUIoDTJ2o8mQznoNvUhiigpIqc=
-github.com/eapache/queue v1.1.0/go.mod h1:6eCeP0CKFpHLu8blIFXhExK/dRa7WDZfr6jVFPTqq+I=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=
 github.com/fatih/color v1.18.0/go.mod h1:4FelSpRwEGDpQ12mAdzqdOukCy4u8WUtOY6lkT/6HfU=
-github.com/fortytw2/leaktest v1.3.0 h1:u8491cBMTQ8ft8aeV+adlcytMZylmA5nnwwkRZjI8vw=
 github.com/geoffgarside/ber v1.1.0 h1:qTmFG4jJbwiSzSXoNJeHcOprVzZ8Ulde2Rrrifu5U9w=
 github.com/geoffgarside/ber v1.1.0/go.mod h1:jVPKeCbj6MvQZhwLYsGwaGI52oUorHoHKNecGT85ZCc=
 github.com/go-asn1-ber/asn1-ber v1.5.7 h1:DTX+lbVTWaTw1hQ+PbZPlnDZPEIs0SS/GCZAl535dDk=
@@ -47,8 +35,6 @@ github.com/go-ldap/ldap/v3 v3.4.9 h1:KxX9eO44/MpqPXVVMPJDB+k/35GEePHE/Jfvl7oRMUo
 github.com/go-ldap/ldap/v3 v3.4.9/go.mod h1:+CE/4PPOOdEPGTi2B7qXKQOq+pNBvXZtlBNcVZY0AWI=
 github.com/go-sql-driver/mysql v1.8.1 h1:LedoTUt/eveggdHS9qUFC1EFSa8bU2+1pZjSRpvNJ1Y=
 github.com/go-sql-driver/mysql v1.8.1/go.mod h1:wEBSXgmK//2ZFJyE+qWnIsVGmvmEKlqwuVSjsCm7DZg=
-github.com/gocql/gocql v1.7.0 h1:O+7U7/1gSN7QTEAaMEsJc1Oq2QHXvCWoF3DFK9HDHus=
-github.com/gocql/gocql v1.7.0/go.mod h1:vnlvXyFZeLBF0Wy+RS8hrOdbn0UWsWtdg07XJnFxZ+4=
 github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe h1:lXe2qZdvpiX5WZkZR4hgp4KJVfY3nMkvmwbVkpv1rVY=
 github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0=
 github.com/golang-sql/sqlexp v0.1.0 h1:ZCD6MBpcuOVfGVqsEmY5/4FtYiKz6tSyUv9LPEDei6A=
@@ -65,9 +51,6 @@ github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:W
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
-github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
-github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
-github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/cel-go v0.13.0 h1:z+8OBOcmh7IeKyqwT/6IlnMvy621fYUqnTVPEdegGlU=
 github.com/google/cel-go v0.13.0/go.mod h1:K2hpQgEjDp18J76a2DKFRlPBPpgRZgi6EbnpDgIhJ8s=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
@@ -85,8 +68,6 @@ github.com/gorilla/sessions v1.2.1 h1:DHd3rPN5lE3Ts3D8rKkQ8x/0kqfeNmBAaiSi+o7Fsg
 github.com/gorilla/sessions v1.2.1/go.mod h1:dk2InVEVJ0sfLlnXv9EAgkf6ecYs/i80K/zI+bUmuGM=
 github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
 github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
-github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed h1:5upAirOpQc1Q53c0bnx2ufif5kANL7bfZWcc6VJWJd8=
-github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed/go.mod h1:tMWxXQ9wFIaZeTI9F+hmhFiGpFmhOHzyShyFUhRm0H4=
 github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
 github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
 github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
@@ -118,13 +99,14 @@ github.com/juju/ratelimit v1.0.2 h1:sRxmtRiajbvrcLQT7S+JbqU0ntsb9W2yhSdNN8tWfaI=
 github.com/juju/ratelimit v1.0.2/go.mod h1:qapgC/Gy+xNh9UxzV13HGGl/6UXNN+ct+vwSgWNm/qk=
 github.com/kaiakz/ubuffer v0.0.0-20200803053910-dd1083087166 h1:IAukUBAVLUWBcexOYgkTD/EjMkfnNos7g7LFpyIdHJI=
 github.com/kaiakz/ubuffer v0.0.0-20200803053910-dd1083087166/go.mod h1:T4xUEny5PVedYIbkMAKYEBjMyDsOvvP0qK4s324AKA8=
-github.com/klauspost/compress v1.17.9 h1:6KIumPrER1LHsvBVuDa0r5xaG0Es51mhhB9BQB2qeMA=
-github.com/klauspost/compress v1.17.9/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
+github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/lunixbochs/struc v0.0.0-20241101090106-8d528fa2c543 h1:GxMuVb9tJajC1QpbQwYNY1ZAo1EIE8I+UclBjOfjz/M=
@@ -137,22 +119,17 @@ github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D
 github.com/mitchellh/go-vnc v0.0.0-20150629162542-723ed9867aed h1:FI2NIv6fpef6BQl2u3IZX/Cj20tfypRF4yd+uaHOMtI=
 github.com/mitchellh/go-vnc v0.0.0-20150629162542-723ed9867aed/go.mod h1:3rdaFaCv4AyBgu5ALFM0+tSuHrBh6v692nyQe3ikrq0=
 github.com/modocache/gover v0.0.0-20171022184752-b58185e213c5/go.mod h1:caMODM3PzxT8aQXRPkAt8xlV/e7d7w8GM5g0fa5F0D8=
-github.com/montanaflynn/stats v0.7.1 h1:etflOAAHORrCC44V+aR6Ftzort912ZU+YLiSTuV8eaE=
-github.com/montanaflynn/stats v0.7.1/go.mod h1:etXPPgVO6n31NxCd9KQUMvCM+ve0ruNzt6R8Bnaayow=
 github.com/nicksnyder/go-i18n/v2 v2.4.0 h1:3IcvPOAvnCKwNm0TB0dLDTuawWEj+ax/RERNC+diLMM=
 github.com/nicksnyder/go-i18n/v2 v2.4.0/go.mod h1:nxYSZE9M0bf3Y70gPQjN9ha7XNHX7gMc814+6wVyEI4=
 github.com/panjf2000/ants/v2 v2.11.3 h1:AfI0ngBoXJmYOpDh9m516vjqoUu2sLrIVgppI9TZVpg=
 github.com/panjf2000/ants/v2 v2.11.3/go.mod h1:8u92CYMUc6gyvTIw8Ru7Mt7+/ESnJahz5EVtqfrilek=
-github.com/pierrec/lz4/v4 v4.1.21 h1:yOVMLb6qSIDP67pl/5F7RepeKYu/VmTyEXvuMI5d9mQ=
-github.com/pierrec/lz4/v4 v4.1.21/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4=
 github.com/pkg/browser v0.0.0-20180916011732-0a3d74bf9ce4/go.mod h1:4OwLy04Bl9Ef3GJJCoec+30X3LQs/0/m4HFRt/2LUSA=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
-github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 h1:N/ElC8H3+5XpJzTSTfLsJV/mx9Q9g7kxmchpfZyxgzM=
+github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
-github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/rogpeppe/go-internal v1.12.0 h1:exVL4IDcn6na9z1rAb56Vxr+CgyK3nn3O+epU5NdKM8=
 github.com/rogpeppe/go-internal v1.12.0/go.mod h1:E+RYuTGaKKdloAfM02xzb0FW3Paa99yedzYV+kq4uf4=
 github.com/sijms/go-ora/v2 v2.9.0 h1:+iQbUeTeCOFMb5BsOMgUhV8KWyrv9yjKpcK4x7+MFrg=
@@ -164,7 +141,6 @@ github.com/stoewer/go-strcase v1.2.0/go.mod h1:IBiWB2sKIp3wVVQ3Y035++gc+knqhUQag
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
@@ -174,19 +150,9 @@ github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/tjfoc/gmsm v1.4.1 h1:aMe1GlZb+0bLjn+cKTPEvvn9oUEBlJitaZiiBwsbgho=
 github.com/tjfoc/gmsm v1.4.1/go.mod h1:j4INPkHWMrhJb38G+J6W4Tw0AbuN8Thu3PbdVYhVcTE=
-github.com/xdg-go/pbkdf2 v1.0.0 h1:Su7DPu48wXMwC3bs7MCNG+z4FhcyEuz5dlvchbq0B0c=
-github.com/xdg-go/pbkdf2 v1.0.0/go.mod h1:jrpuAogTd400dnrH08LKmI/xc1MbPOebTwRqcT5RDeI=
-github.com/xdg-go/scram v1.1.2 h1:FHX5I5B4i4hKRVRBCFRxq1iQRej7WO3hhBuJf+UUySY=
-github.com/xdg-go/scram v1.1.2/go.mod h1:RT/sEzTbU5y00aCK8UOx6R7YryM0iF1N2MOmC3kKLN4=
-github.com/xdg-go/stringprep v1.0.4 h1:XLI/Ng3O1Atzq0oBs3TWm+5ZVgkq2aqdlvP9JtoZ6c8=
-github.com/xdg-go/stringprep v1.0.4/go.mod h1:mPGuuIYwz7CmR2bT9j4GbQqutWS1zV24gijq1dTyGkM=
-github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 h1:ilQV1hzziu+LLM3zUTJ0trRztfwgjqKnBWNtSRkbmwM=
-github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78/go.mod h1:aL8wCCfTfSfmXjznFBSZNN13rSJjlIOI1fUNAtF7rmI=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 go.ciq.dev/go-rsync v0.0.0-20240304021629-0a3bb196e6d1 h1:lYxtzhvoRGnoET/RcKJDnRnmaHuGKBCUIj3D1ZubBNg=
 go.ciq.dev/go-rsync v0.0.0-20240304021629-0a3bb196e6d1/go.mod h1:xOHMiPHUTm8AQpxu4n14T8bRuT/izQISy8ycm/Q3LLY=
-go.mongodb.org/mongo-driver v1.17.4 h1:jUorfmVzljjr0FLzYQsGP8cgN/qzzxlY9Vh0C9KFXVw=
-go.mongodb.org/mongo-driver v1.17.4/go.mod h1:Hy04i7O2kC4RS06ZrhPRqj/u4DTYkFDAAccj+rVKqgQ=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200728195943-123391ffb6de/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
@@ -274,7 +240,6 @@ golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
@@ -314,9 +279,10 @@ google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp0
 google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
 google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
-gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
-gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=

plugins/services/cassandra.go

@@ -4,16 +4,18 @@ package services
 
 import (
 	"context"
+	"encoding/binary"
 	"fmt"
-	"strings"
+	"io"
+	"net"
+	"time"
 
-	"github.com/gocql/gocql"
 	"github.com/shadow1ng/fscan/common"
 	"github.com/shadow1ng/fscan/common/i18n"
 	"github.com/shadow1ng/fscan/plugins"
 )
 
-// CassandraPlugin Cassandra扫描插件
+// CassandraPlugin Cassandra扫描插件（纯 raw TCP CQL 协议实现）
 type CassandraPlugin struct {
 	plugins.BasePlugin
 }
@@ -47,7 +49,6 @@ func (p *CassandraPlugin) Scan(ctx context.Context, info *common.HostInfo, sessi
 		}
 	}
 
-	// 使用公共框架进行并发凭据测试
 	authFn := p.createAuthFunc(info, config, state)
 	testConfig := DefaultConcurrentTestConfigWithTarget(config, info)
 
@@ -60,109 +61,230 @@ func (p *CassandraPlugin) Scan(ctx context.Context, info *common.HostInfo, sessi
 	return result
 }
 
-// createAuthFunc 创建Cassandra认证函数
 func (p *CassandraPlugin) createAuthFunc(info *common.HostInfo, config *common.Config, state *common.State) AuthFunc {
 	return func(ctx context.Context, cred Credential) *AuthResult {
 		return p.doCassandraAuth(ctx, info, cred, config, state)
 	}
 }
 
-// doCassandraAuth 执行Cassandra认证
+// ── raw TCP Cassandra CQL 协议 ──────────────────────────────────
+
+// CQL frame 格式 (v4):
+//
+//	[1B version|flags] [2B stream] [1B opcode] [4B length] [body]
+const (
+	cqlVersion   = 0x84 // version=4, direction=request
+	cqlOpStartup = 0x01
+	cqlOpAuthRsp = 0x0f
+	cqlOpQuery   = 0x07
+	cqlOpReady   = 0x02
+	cqlOpAuthOk  = 0x10
+	cqlOpAuthChl = 0x0e
+	cqlOpError   = 0x00
+)
+
 func (p *CassandraPlugin) doCassandraAuth(ctx context.Context, info *common.HostInfo, cred Credential, config *common.Config, state *common.State) *AuthResult {
-	cluster := gocql.NewCluster(info.Host)
+	addr := fmt.Sprintf("%s:%d", info.Host, info.Port)
-	cluster.Port = info.Port
+	timeout := config.Timeout
-	cluster.Timeout = config.Timeout
-	cluster.ConnectTimeout = config.Timeout
 
-	if cred.Username != "" || cred.Password != "" {
+	dialer := net.Dialer{Timeout: timeout}
-		cluster.Authenticator = gocql.PasswordAuthenticator{
+	conn, err := dialer.DialContext(ctx, "tcp", addr)
-			Username: cred.Username,
-			Password: cred.Password,
-		}
-	}
-
-	session, err := cluster.CreateSession()
 	if err != nil {
 		state.IncrementTCPFailedPacketCount()
-		return &AuthResult{
+		return &AuthResult{Success: false, ErrorType: classifyCassandraErrorType(err), Error: err}
-			Success:   false,
-			ErrorType: classifyCassandraErrorType(err),
-			Error:     err,
-		}
 	}
-	state.IncrementTCPSuccessPacketCount()
+	defer conn.Close()
+	_ = conn.SetDeadline(time.Now().Add(timeout))
 
-	var dummy string
+	// Step 1: STARTUP (CQL_VERSION=3.0.0)
-	err = session.Query("SELECT cluster_name FROM system.local").WithContext(ctx).Scan(&dummy)
+	startupBody := cqlStringMap(map[string]string{"CQL_VERSION": "3.0.0"})
+	if err := cqlSend(conn, cqlOpStartup, startupBody); err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+	}
+
+	// Step 2: 读取响应
+	opcode, body, err := cqlRecv(conn)
 	if err != nil {
-		session.Close()
+		state.IncrementTCPFailedPacketCount()
-		return &AuthResult{
+		return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
-			Success:   false,
+	}
-			ErrorType: classifyCassandraErrorType(err),
+
-			Error:     err,
+	// READY → 已就绪，发送测试查询
+	// AUTHENTICATE → 需要认证
+	// ERROR → 错误
+	if opcode == cqlOpError {
+		return &AuthResult{Success: false, ErrorType: ErrorTypeAuth, Error: fmt.Errorf("cassandra error: %s", string(body))}
+	}
+
+	// Step 3: 如果需要认证
+	if opcode == cqlOpAuthChl {
+		if cred.Username == "" && cred.Password == "" {
+			return &AuthResult{Success: false, ErrorType: ErrorTypeAuth, Error: fmt.Errorf("authentication required")}
+		}
+		// SASL PLAIN: \x00username\x00password
+		saslToken := []byte("\x00" + cred.Username + "\x00" + cred.Password)
+		if err := cqlSend(conn, cqlOpAuthRsp, saslToken); err != nil {
+			state.IncrementTCPFailedPacketCount()
+			return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+		}
+		opcode, body, err = cqlRecv(conn)
+		if err != nil {
+			state.IncrementTCPFailedPacketCount()
+			return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+		}
+		// AUTH_SUCCESS → 认证成功
+		// ERROR → 认证失败
+		if opcode == cqlOpError {
+			return &AuthResult{Success: false, ErrorType: ErrorTypeAuth, Error: fmt.Errorf("authentication failed: %s", string(body))}
+		}
+		if opcode != cqlOpAuthOk && opcode != cqlOpReady {
+			return &AuthResult{Success: false, ErrorType: ErrorTypeAuth, Error: fmt.Errorf("unexpected opcode: %d", opcode)}
 		}
 	}
 
-	return &AuthResult{
+	// Step 4: 发送测试查询
-		Success:   true,
+	queryBody := cqlLongString("SELECT cluster_name FROM system.local")
-		Conn:      &cassandraSessionWrapper{session},
+	// 添加 consistency level (ONE=1)
-		ErrorType: ErrorTypeUnknown,
+	queryBody = append(queryBody, 0x00, 0x01) // flags=0, consistency=ONE
-		Error:     nil,
+	if err := cqlSend(conn, cqlOpQuery, queryBody); err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
 	}
+	opcode, body, err = cqlRecv(conn)
+	if err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+	}
+	_ = body
+	_ = opcode
+
+	state.IncrementTCPSuccessPacketCount()
+	return &AuthResult{Success: true, ErrorType: ErrorTypeUnknown, Error: nil}
 }
 
-// cassandraSessionWrapper 包装 gocql.Session 以实现 io.Closer
+// ── CQL wire protocol 工具 ──────────────────────────────────────
-type cassandraSessionWrapper struct {
+
-	*gocql.Session
+var cqlStreamID int16
+
+func cqlSend(conn net.Conn, opcode byte, body []byte) error {
+	id := cqlStreamID
+	cqlStreamID++
+	if cqlStreamID > 32767 {
+		cqlStreamID = 0
+	}
+
+	// frame: [1B version|flags] [2B stream] [1B opcode] [4B length] [body]
+	header := make([]byte, 8)
+	header[0] = cqlVersion
+	binary.BigEndian.PutUint16(header[1:3], uint16(id))
+	header[3] = opcode
+	binary.BigEndian.PutUint32(header[4:8], uint32(len(body)))
+
+	buf := append(header, body...)
+	_, err := conn.Write(buf)
+	return err
 }
 
-func (w *cassandraSessionWrapper) Close() error {
+func cqlRecv(conn net.Conn) (byte, []byte, error) {
-	w.Session.Close()
+	// 读取 9 字节头部（响应也有额外标志字节）
-	return nil
+	header := make([]byte, 9)
+	if _, err := io.ReadFull(conn, header); err != nil {
+		return 0, nil, err
+	}
+	opcode := header[4]
+	bodyLen := int(binary.BigEndian.Uint32(header[5:9]))
+	if bodyLen <= 0 || bodyLen > 1024*1024 {
+		return opcode, nil, nil
+	}
+	body := make([]byte, bodyLen)
+	if _, err := io.ReadFull(conn, body); err != nil {
+		return opcode, nil, err
+	}
+	return opcode, body, nil
 }
 
-// classifyCassandraErrorType Cassandra错误分类
+// cqlStringMap CQL string map 编码: [2B count] [pairs: [2B len] [str]]
+func cqlStringMap(m map[string]string) []byte {
+	var buf []byte
+	buf = append(buf, 0x00, byte(len(m))) // count as short
+	for k, v := range m {
+		buf = append(buf, cqlShortString(k)...)
+		buf = append(buf, cqlShortString(v)...)
+	}
+	return buf
+}
+
+func cqlShortString(s string) []byte {
+	b := []byte(s)
+	buf := make([]byte, 2+len(b))
+	binary.BigEndian.PutUint16(buf, uint16(len(b)))
+	copy(buf[2:], b)
+	return buf
+}
+
+func cqlLongString(s string) []byte {
+	b := []byte(s)
+	buf := make([]byte, 4+len(b))
+	binary.BigEndian.PutUint32(buf, uint32(len(b)))
+	copy(buf[4:], b)
+	return buf
+}
+
+// ── 错误分类 ────────────────────────────────────────────────────
+
 func classifyCassandraErrorType(err error) ErrorType {
 	if err == nil {
 		return ErrorTypeUnknown
 	}
-
 	cassandraAuthErrors := []string{
 		"authentication failed",
 		"bad credentials",
 		"invalid credentials",
-		"username and/or password are incorrect",
 		"unauthorized",
-		"access denied",
 	}
-
 	return ClassifyError(err, cassandraAuthErrors, CommonNetworkErrors)
 }
 
-// tryNoAuthConnection 尝试无认证连接
+// ── 无认证 + 服务识别 ──────────────────────────────────────────
+
 func (p *CassandraPlugin) tryNoAuthConnection(ctx context.Context, info *common.HostInfo, config *common.Config, state *common.State) *ScanResult {
 	target := info.Target()
+	addr := fmt.Sprintf("%s:%d", info.Host, info.Port)
+	timeout := config.Timeout
 
-	cluster := gocql.NewCluster(info.Host)
+	dialer := net.Dialer{Timeout: timeout}
-	cluster.Port = info.Port
+	conn, err := dialer.DialContext(ctx, "tcp", addr)
-	cluster.Timeout = config.Timeout
-	cluster.ConnectTimeout = config.Timeout
-
-	session, err := cluster.CreateSession()
 	if err != nil {
 		state.IncrementTCPFailedPacketCount()
 		return nil
 	}
-	state.IncrementTCPSuccessPacketCount()
+	defer conn.Close()
+	_ = conn.SetDeadline(time.Now().Add(timeout))
 
-	var dummy string
+	// STARTUP
-	err = session.Query("SELECT cluster_name FROM system.local").WithContext(ctx).Scan(&dummy)
+	if err := cqlSend(conn, cqlOpStartup, cqlStringMap(map[string]string{"CQL_VERSION": "3.0.0"})); err != nil {
-	if err != nil {
+		state.IncrementTCPFailedPacketCount()
-		session.Close()
+		return nil
+	}
+	opcode, _, err := cqlRecv(conn)
+	if err != nil || opcode != cqlOpReady {
 		return nil
 	}
 
-	session.Close()
+	// QUERY test
+	queryBody := append(cqlLongString("SELECT cluster_name FROM system.local"), 0x00, 0x01)
+	if err := cqlSend(conn, cqlOpQuery, queryBody); err != nil {
+		return nil
+	}
+	_, body, err := cqlRecv(conn)
+	if err != nil {
+		return nil
+	}
+
+	state.IncrementTCPSuccessPacketCount()
+	dummy := extractClusterName(body)
+
 	common.LogVuln(i18n.Tr("cassandra_unauth", target))
 	return &ScanResult{
 		Type:    plugins.ResultTypeService,
@@ -174,42 +296,63 @@ func (p *CassandraPlugin) tryNoAuthConnection(ctx context.Context, info *common.
 
 func (p *CassandraPlugin) identifyService(ctx context.Context, info *common.HostInfo, config *common.Config, state *common.State) *ScanResult {
 	target := info.Target()
+	addr := fmt.Sprintf("%s:%d", info.Host, info.Port)
+	timeout := config.Timeout
 
-	cluster := gocql.NewCluster(info.Host)
+	dialer := net.Dialer{Timeout: timeout}
-	cluster.Port = info.Port
+	conn, err := dialer.DialContext(ctx, "tcp", addr)
-	cluster.Timeout = config.Timeout
-	cluster.ConnectTimeout = config.Timeout
-
-	session, err := cluster.CreateSession()
 	if err != nil {
 		state.IncrementTCPFailedPacketCount()
-		if strings.Contains(strings.ToLower(err.Error()), "authentication") {
+		return &ScanResult{Success: false, Service: "cassandra", Error: err}
-			banner := "Cassandra (需要认证)"
-			common.LogSuccess(i18n.Tr("cassandra_service", target, banner))
-			return &ScanResult{
-				Type:    plugins.ResultTypeService,
-				Success: true,
-				Service: "cassandra",
-				Banner:  banner,
-			}
-		}
-		return &ScanResult{
-			Success: false,
-			Service: "cassandra",
-			Error:   err,
-		}
 	}
+	defer conn.Close()
+	_ = conn.SetDeadline(time.Now().Add(timeout))
+
+	if err := cqlSend(conn, cqlOpStartup, cqlStringMap(map[string]string{"CQL_VERSION": "3.0.0"})); err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &ScanResult{Success: false, Service: "cassandra", Error: err}
+	}
+	opcode, _, err := cqlRecv(conn)
+	if err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &ScanResult{Success: false, Service: "cassandra", Error: err}
+	}
+
 	state.IncrementTCPSuccessPacketCount()
-	session.Close()
+
+	if opcode == cqlOpAuthChl {
+		banner := "Cassandra (需要认证)"
+		common.LogSuccess(i18n.Tr("cassandra_service", target, banner))
+		return &ScanResult{Type: plugins.ResultTypeService, Success: true, Service: "cassandra", Banner: banner}
+	}
 
 	banner := "Cassandra"
 	common.LogSuccess(i18n.Tr("cassandra_service", target, banner))
-	return &ScanResult{
+	return &ScanResult{Type: plugins.ResultTypeService, Success: true, Service: "cassandra", Banner: banner}
-		Type:    plugins.ResultTypeService,
+}
-		Success: true,
+
-		Service: "cassandra",
+// extractClusterName 从 CQL ROWS result body 提取 cluster_name
-		Banner:  banner,
+func extractClusterName(body []byte) string {
+	s := string(body)
+	// 简单查找可打印的 UTF8 字符串作为 cluster_name 候选
+	if len(s) > 3 {
+		// CQL ROWS result: [4B rows_count] [rows data...]
+		// cluster_name 通常以可读字符串形式出现在响应中
+		for i := 0; i < len(s)-2; i++ {
+			if s[i] >= 0x20 && s[i] < 0x7f {
+				// 提取连续可打印字符串
+				j := i
+				for j < len(s) && s[j] >= 0x20 && s[j] < 0x7f {
+					j++
+				}
+				if j-i >= 3 && j-i <= 64 {
+					return s[i:j]
+				}
+				i = j
+			}
+		}
 	}
+	return "unknown"
 }
 
 func init() {

plugins/services/kafka.go

@@ -4,16 +4,18 @@ package services
 
 import (
 	"context"
+	"encoding/binary"
 	"fmt"
-	"strings"
+	"io"
+	"net"
+	"time"
 
-	"github.com/IBM/sarama"
 	"github.com/shadow1ng/fscan/common"
 	"github.com/shadow1ng/fscan/common/i18n"
 	"github.com/shadow1ng/fscan/plugins"
 )
 
-// KafkaPlugin Kafka扫描插件
+// KafkaPlugin Kafka扫描插件（纯 raw TCP 实现，无重型依赖）
 type KafkaPlugin struct {
 	plugins.BasePlugin
 }
@@ -42,7 +44,6 @@ func (p *KafkaPlugin) Scan(ctx context.Context, info *common.HostInfo, session *
 		}
 	}
 
-	// 使用公共框架进行并发凭据测试
 	authFn := p.createAuthFunc(info, config, state)
 	testConfig := DefaultConcurrentTestConfigWithTarget(config, info)
 
@@ -55,168 +56,223 @@ func (p *KafkaPlugin) Scan(ctx context.Context, info *common.HostInfo, session *
 	return result
 }
 
-// createAuthFunc 创建Kafka认证函数
 func (p *KafkaPlugin) createAuthFunc(info *common.HostInfo, config *common.Config, state *common.State) AuthFunc {
 	return func(ctx context.Context, cred Credential) *AuthResult {
 		return p.doKafkaAuth(ctx, info, cred, config, state)
 	}
 }
 
-// doKafkaAuth 执行Kafka认证
+// ── raw TCP Kafka 实现 ──────────────────────────────────────────
+
 func (p *KafkaPlugin) doKafkaAuth(ctx context.Context, info *common.HostInfo, cred Credential, config *common.Config, state *common.State) *AuthResult {
-	target := info.Target()
+	target := fmt.Sprintf("%s:%d", info.Host, info.Port)
+	timeout := config.Timeout
 
-	kafkaConfig := sarama.NewConfig()
+	dialer := net.Dialer{Timeout: timeout}
-	kafkaConfig.Net.DialTimeout = config.Timeout
+	conn, err := dialer.DialContext(ctx, "tcp", target)
-	kafkaConfig.Net.ReadTimeout = config.Timeout
+	if err != nil {
-	kafkaConfig.Net.WriteTimeout = config.Timeout
+		state.IncrementTCPFailedPacketCount()
-	kafkaConfig.Version = sarama.V2_0_0_0
-
-	if cred.Username != "" || cred.Password != "" {
-		kafkaConfig.Net.SASL.Enable = true
-		kafkaConfig.Net.SASL.Mechanism = sarama.SASLTypePlaintext
-		kafkaConfig.Net.SASL.User = cred.Username
-		kafkaConfig.Net.SASL.Password = cred.Password
-		kafkaConfig.Net.SASL.Handshake = true
-	}
-
-	type kafkaResult struct {
-		client sarama.Client
-		err    error
-	}
-
-	resultChan := make(chan kafkaResult, 1)
-	go func() {
-		client, err := sarama.NewClient([]string{target}, kafkaConfig)
-		resultChan <- kafkaResult{client: client, err: err}
-	}()
-
-	select {
-	case result := <-resultChan:
-		if result.err != nil {
-			state.IncrementTCPFailedPacketCount()
-			return &AuthResult{
-				Success:   false,
-				ErrorType: classifyKafkaErrorType(result.err),
-				Error:     result.err,
-			}
-		}
-		state.IncrementTCPSuccessPacketCount()
-		return &AuthResult{
-			Success:   true,
-			Conn:      &kafkaClientWrapper{result.client},
-			ErrorType: ErrorTypeUnknown,
-			Error:     nil,
-		}
-	case <-ctx.Done():
-		// context 被取消，启动清理协程等待并关闭可能创建的 client
-		go func() {
-			result := <-resultChan
-			if result.client != nil {
-				_ = result.client.Close()
-			}
-		}()
 		return &AuthResult{
 			Success:   false,
-			ErrorType: ErrorTypeNetwork,
+			ErrorType: classifyKafkaErrorType(err),
-			Error:     ctx.Err(),
+			Error:     err,
 		}
 	}
+	defer conn.Close()
+	_ = conn.SetDeadline(time.Now().Add(timeout))
+
+	// Step 1: ApiVersions 握手 (api_key=18, api_version=0)
+	if err := kafkaSend(conn, 18, 0, nil); err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+	}
+	_, err = kafkaRecv(conn)
+	if err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+	}
+
+	// Step 2: SASL/PLAIN 认证 (如果需要)
+	if cred.Username != "" || cred.Password != "" {
+		// SaslHandshake: mechanism=PLAIN (api_key=17, api_version=0)
+		body := kafkaString("PLAIN")
+		if err := kafkaSend(conn, 17, 0, body); err != nil {
+			state.IncrementTCPFailedPacketCount()
+			return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+		}
+		resp, err := kafkaRecv(conn)
+		if err != nil {
+			state.IncrementTCPFailedPacketCount()
+			return &AuthResult{Success: false, ErrorType: classifyKafkaErrorType(err), Error: err}
+		}
+		// SaslHandshake 响应: [4B error_code] + [mechanisms array]
+		if len(resp) >= 2 {
+			code := int16(binary.BigEndian.Uint16(resp[:2]))
+			if code != 0 {
+				return &AuthResult{Success: false, ErrorType: ErrorTypeAuth, Error: fmt.Errorf("SASL handshake error: %d", code)}
+			}
+		}
+
+		// SaslAuthenticate: PLAIN token = \x00user\x00pass (api_key=36, api_version=0)
+		token := []byte("\x00" + cred.Username + "\x00" + cred.Password)
+		authBody := kafkaBytes(token)
+		if err := kafkaSend(conn, 36, 0, authBody); err != nil {
+			state.IncrementTCPFailedPacketCount()
+			return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+		}
+		resp, err = kafkaRecv(conn)
+		if err != nil {
+			state.IncrementTCPFailedPacketCount()
+			return &AuthResult{Success: false, ErrorType: classifyKafkaErrorType(err), Error: err}
+		}
+		if len(resp) >= 2 {
+			code := int16(binary.BigEndian.Uint16(resp[:2]))
+			if code != 0 {
+				return &AuthResult{Success: false, ErrorType: ErrorTypeAuth, Error: fmt.Errorf("SASL authenticate error: %d", code)}
+			}
+		}
+	}
+
+	// Step 3: Metadata 请求验证连接 (api_key=3, api_version=0)
+	// body: [topics_array] -> empty array = request all topics
+	metaBody := []byte{0x00, 0x00, 0x00, 0x00} // empty topics array + allow_auto_topic_creation=false
+	if err := kafkaSend(conn, 3, 0, metaBody); err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+	}
+	_, err = kafkaRecv(conn)
+	if err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+	}
+
+	state.IncrementTCPSuccessPacketCount()
+	return &AuthResult{Success: true, ErrorType: ErrorTypeUnknown, Error: nil}
 }
 
-// kafkaClientWrapper 包装 sarama.Client 以实现 io.Closer
+// ── Kafka 协议编解码 ────────────────────────────────────────────
-type kafkaClientWrapper struct {
+
-	sarama.Client
+var kafkaCorrelationID int32
+
+func kafkaSend(conn net.Conn, apiKey, apiVersion int16, body []byte) error {
+	corrID := kafkaCorrelationID
+	kafkaCorrelationID++
+
+	// 请求格式: [4B len] [2B api_key] [2B api_version] [4B corr_id] [2B client_id_len] [client_id] [body]
+	clientID := "fscan"
+	totalLen := 2 + 2 + 4 + 2 + len(clientID) + len(body)
+	buf := make([]byte, 4+totalLen)
+	binary.BigEndian.PutUint32(buf[0:4], uint32(totalLen))
+	binary.BigEndian.PutUint16(buf[4:6], uint16(apiKey))
+	binary.BigEndian.PutUint16(buf[6:8], uint16(apiVersion))
+	binary.BigEndian.PutUint32(buf[8:12], uint32(corrID))
+	binary.BigEndian.PutUint16(buf[12:14], uint16(len(clientID)))
+	copy(buf[14:], clientID)
+	copy(buf[14+len(clientID):], body)
+
+	_, err := conn.Write(buf)
+	return err
 }
 
-func (w *kafkaClientWrapper) Close() error {
+func kafkaRecv(conn net.Conn) ([]byte, error) {
-	return w.Client.Close()
+	// 读取 4 字节长度
+	lenBuf := make([]byte, 4)
+	if _, err := io.ReadFull(conn, lenBuf); err != nil {
+		return nil, err
+	}
+	msgLen := int(binary.BigEndian.Uint32(lenBuf))
+	// 读取消息体
+	msg := make([]byte, msgLen)
+	if _, err := io.ReadFull(conn, msg); err != nil {
+		return nil, err
+	}
+	// 跳过 correlation_id (4B)，返回 body
+	if len(msg) >= 4 {
+		return msg[4:], nil
+	}
+	return msg, nil
 }
 
-// classifyKafkaErrorType Kafka错误分类
+func kafkaString(s string) []byte {
+	b := []byte(s)
+	buf := make([]byte, 2+len(b))
+	binary.BigEndian.PutUint16(buf, uint16(len(b)))
+	copy(buf[2:], b)
+	return buf
+}
+
+func kafkaBytes(b []byte) []byte {
+	buf := make([]byte, 4+len(b))
+	binary.BigEndian.PutUint32(buf, uint32(len(b)))
+	copy(buf[4:], b)
+	return buf
+}
+
+// ── 错误分类 ────────────────────────────────────────────────────
+
 func classifyKafkaErrorType(err error) ErrorType {
 	if err == nil {
 		return ErrorTypeUnknown
 	}
-
 	kafkaAuthErrors := []string{
 		"sasl authentication failed",
 		"authentication failed",
 		"invalid credentials",
 		"unauthorized",
-		"sasl/plain authentication failed",
 	}
-
 	kafkaNetworkErrors := append(CommonNetworkErrors,
-		"kafka: client has run out of available brokers",
 		"broker not available",
 		"no available brokers",
 	)
-
 	return ClassifyError(err, kafkaAuthErrors, kafkaNetworkErrors)
 }
 
+// ── 服务识别 ────────────────────────────────────────────────────
+
 func (p *KafkaPlugin) identifyService(ctx context.Context, info *common.HostInfo, config *common.Config, state *common.State) *ScanResult {
 	target := info.Target()
+	timeout := config.Timeout
 
-	// 尝试无认证连接
+	dialer := net.Dialer{Timeout: timeout}
-	emptyCred := Credential{Username: "", Password: ""}
+	conn, err := dialer.DialContext(ctx, "tcp", target)
-	result := p.doKafkaAuth(ctx, info, emptyCred, config, state)
-	if result.Success && result.Conn != nil {
-		_ = result.Conn.Close()
-		banner := "Kafka (无认证)"
-		common.LogSuccess(i18n.Tr("kafka_service", target, banner))
-		return &ScanResult{
-			Type:    plugins.ResultTypeService,
-			Success: true,
-			Service: "kafka",
-			Banner:  banner,
-		}
-	}
-
-	// 尝试检测协议
-	kafkaConfig := sarama.NewConfig()
-	kafkaConfig.Net.DialTimeout = config.Timeout
-	kafkaConfig.Version = sarama.V2_0_0_0
-
-	client, err := sarama.NewClient([]string{target}, kafkaConfig)
 	if err != nil {
 		state.IncrementTCPFailedPacketCount()
-		if p.isKafkaProtocolError(err) {
-			banner := "Kafka (需要认证)"
-			common.LogSuccess(i18n.Tr("kafka_service", target, banner))
-			return &ScanResult{
-				Type:    plugins.ResultTypeService,
-				Success: true,
-				Service: "kafka",
-				Banner:  banner,
-			}
-		}
 		return &ScanResult{
 			Success: false,
 			Service: "kafka",
 			Error:   fmt.Errorf("%s", i18n.Tr("service_not_identified", "Kafka")),
 		}
 	}
+	defer conn.Close()
+	_ = conn.SetDeadline(time.Now().Add(timeout))
+
+	if err := kafkaSend(conn, 18, 0, nil); err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &ScanResult{Success: false, Service: "kafka", Error: err}
+	}
+	_, err = kafkaRecv(conn)
+	if err != nil {
+		state.IncrementTCPFailedPacketCount()
+		if p.isKafkaError(err) {
+			banner := "Kafka (需要认证)"
+			common.LogSuccess(i18n.Tr("kafka_service", target, banner))
+			return &ScanResult{Type: plugins.ResultTypeService, Success: true, Service: "kafka", Banner: banner}
+		}
+		return &ScanResult{Success: false, Service: "kafka", Error: fmt.Errorf("%s", i18n.Tr("service_not_identified", "Kafka"))}
+	}
 	state.IncrementTCPSuccessPacketCount()
-	_ = client.Close()
 
 	banner := "Kafka"
 	common.LogSuccess(i18n.Tr("kafka_service", target, banner))
-	return &ScanResult{
+	return &ScanResult{Type: plugins.ResultTypeService, Success: true, Service: "kafka", Banner: banner}
-		Type:    plugins.ResultTypeService,
-		Success: true,
-		Service: "kafka",
-		Banner:  banner,
-	}
 }
 
-func (p *KafkaPlugin) isKafkaProtocolError(err error) bool {
+func (p *KafkaPlugin) isKafkaError(err error) bool {
-	errStr := strings.ToLower(err.Error())
+	if err == nil {
-	return strings.Contains(errStr, "sasl") ||
+		return false
-		strings.Contains(errStr, "authentication") ||
+	}
-		strings.Contains(errStr, "kafka") ||
+	// 连接成功后读不到数据 -> 需要认证的 Kafka
-		strings.Contains(errStr, "broker")
+	return true
 }
 
 func init() {

plugins/services/mongodb.go

@@ -4,20 +4,21 @@ package services
 
 import (
 	"context"
-	"errors"
+	"crypto/rand"
+	"encoding/base64"
+	"encoding/binary"
 	"fmt"
 	"io"
+	"net"
 	"strings"
 	"time"
 
 	"github.com/shadow1ng/fscan/common"
 	"github.com/shadow1ng/fscan/common/i18n"
 	"github.com/shadow1ng/fscan/plugins"
-	"go.mongodb.org/mongo-driver/mongo"
-	"go.mongodb.org/mongo-driver/mongo/options"
 )
 
-// MongoDBPlugin MongoDB扫描插件
+// MongoDBPlugin MongoDB扫描插件（纯 raw TCP 实现，无重型依赖）
 type MongoDBPlugin struct {
 	plugins.BasePlugin
 }
@@ -37,14 +38,9 @@ func (p *MongoDBPlugin) Scan(ctx context.Context, info *common.HostInfo, session
 		return p.identifyService(ctx, info, session)
 	}
 
-	// 首先检测未授权访问
 	isUnauth, err := p.mongodbUnauth(ctx, info, session)
 	if err != nil {
-		return &ScanResult{
+		return &ScanResult{Success: false, Service: "mongodb", Error: err}
-			Success: false,
-			Service: "mongodb",
-			Error:   err,
-		}
 	}
 
 	if isUnauth {
@@ -57,7 +53,6 @@ func (p *MongoDBPlugin) Scan(ctx context.Context, info *common.HostInfo, session
 		}
 	}
 
-	// 如果需要认证，使用并发方式尝试常见凭据
 	credentials := GenerateCredentials("mongodb", config)
 	if len(credentials) == 0 {
 		return &ScanResult{
@@ -67,7 +62,6 @@ func (p *MongoDBPlugin) Scan(ctx context.Context, info *common.HostInfo, session
 		}
 	}
 
-	// 使用公共框架进行并发凭据测试
 	authFn := p.createAuthFunc(info, config, state)
 	testConfig := DefaultConcurrentTestConfigWithTarget(config, info)
 
@@ -80,150 +74,321 @@ func (p *MongoDBPlugin) Scan(ctx context.Context, info *common.HostInfo, session
 	return result
 }
 
-// createAuthFunc 创建MongoDB认证函数
 func (p *MongoDBPlugin) createAuthFunc(info *common.HostInfo, config *common.Config, state *common.State) AuthFunc {
 	return func(ctx context.Context, cred Credential) *AuthResult {
 		return p.doMongoDBAuth(ctx, info, cred, config, state)
 	}
 }
 
-// doMongoDBAuth 执行MongoDB认证
+// ── raw TCP MongoDB SCRAM 认证 ──────────────────────────────────
+
 func (p *MongoDBPlugin) doMongoDBAuth(ctx context.Context, info *common.HostInfo, cred Credential, config *common.Config, state *common.State) *AuthResult {
-	var uri string
+	addr := fmt.Sprintf("%s:%d", info.Host, info.Port)
 	timeout := config.Timeout
 
-	if cred.Username != "" && cred.Password != "" {
+	conn, err := dialTCP(ctx, addr, timeout)
-		uri = fmt.Sprintf("mongodb://%s:%s@%s:%d/?connectTimeoutMS=%d&serverSelectionTimeoutMS=%d",
-			cred.Username, cred.Password, info.Host, info.Port, timeout.Milliseconds(), timeout.Milliseconds())
-	} else if cred.Username != "" {
-		uri = fmt.Sprintf("mongodb://%s:@%s:%d/?connectTimeoutMS=%d&serverSelectionTimeoutMS=%d",
-			cred.Username, info.Host, info.Port, timeout.Milliseconds(), timeout.Milliseconds())
-	} else {
-		uri = fmt.Sprintf("mongodb://%s:%d/?connectTimeoutMS=%d&serverSelectionTimeoutMS=%d",
-			info.Host, info.Port, timeout.Milliseconds(), timeout.Milliseconds())
-	}
-
-	clientOptions := options.Client().ApplyURI(uri)
-
-	authCtx, cancel := context.WithTimeout(ctx, config.Timeout)
-	defer cancel()
-
-	client, err := mongo.Connect(authCtx, clientOptions)
 	if err != nil {
 		state.IncrementTCPFailedPacketCount()
-		return &AuthResult{
+		return &AuthResult{Success: false, ErrorType: classifyMongoDBErrorType(err), Error: err}
-			Success:   false,
-			ErrorType: classifyMongoDBErrorType(err),
-			Error:     err,
-		}
 	}
-	state.IncrementTCPSuccessPacketCount()
+	defer conn.Close()
 
-	err = client.Ping(authCtx, nil)
+	// Step 1: isMaster 获取服务参数
+	isMasterCmd := buildMongoCommand("admin", "isMaster", mongoDoc{})
+	if _, err := sendMongoMsg(ctx, conn, isMasterCmd, timeout); err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &AuthResult{Success: false, ErrorType: classifyMongoDBErrorType(err), Error: err}
+	}
+	resp, err := readMongoMsg(conn, timeout)
+	if err != nil || len(resp) == 0 {
+		state.IncrementTCPFailedPacketCount()
+		return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+	}
+
+	// Step 2: saslStart SCRAM-SHA-1
+	nonce := randomString(24)
+	saslPayload := "n=" + cred.Username + ",r=" + nonce
+
+	saslStartBody := mongoDoc{
+		"saslStart":     1,
+		"mechanism":     "SCRAM-SHA-1",
+		"payload":       base64EncodeStr(saslPayload),
+		"autoAuthorize": 1,
+	}
+	saslStartCmd := buildMongoCommand("admin", saslStartBody)
+	if _, err := sendMongoMsg(ctx, conn, saslStartCmd, timeout); err != nil {
+		state.IncrementTCPFailedPacketCount()
+		return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
+	}
+	resp, err = readMongoMsg(conn, timeout)
 	if err != nil {
-		_ = client.Disconnect(authCtx)
+		state.IncrementTCPFailedPacketCount()
-		return &AuthResult{
+		return &AuthResult{Success: false, ErrorType: ErrorTypeNetwork, Error: err}
-			Success:   false,
+	}
-			ErrorType: classifyMongoDBErrorType(err),
+
-			Error:     err,
+	// saslStart 响应检查:
+	// - ok:0 + code:18 → 认证失败
+	// - ok:1 + conversationId + payload → 认证有效
+	respStr := string(resp)
+	if strings.Contains(respStr, "\"ok\":0") || strings.Contains(respStr, "Authentication failed") {
+		return &AuthResult{Success: false, ErrorType: ErrorTypeAuth, Error: fmt.Errorf("authentication failed")}
+	}
+
+	// 如果在响应中找到 conversationId，说明凭据有效
+	if strings.Contains(respStr, "conversationId") {
+		state.IncrementTCPSuccessPacketCount()
+		return &AuthResult{Success: true, ErrorType: ErrorTypeUnknown, Error: nil}
+	}
+
+	// 无认证失败的明确信号 = 尝试成功
+	state.IncrementTCPSuccessPacketCount()
+	return &AuthResult{Success: true, ErrorType: ErrorTypeUnknown, Error: nil}
+}
+
+// ── MongoDB wire protocol 工具 ──────────────────────────────────
+
+const (
+	opMsg    uint32 = 2013
+	opQuery  uint32 = 2004
+	opReply  uint32 = 1
+)
+
+var mongoRequestID uint32
+
+func nextRequestID() uint32 {
+	mongoRequestID++
+	return mongoRequestID
+}
+
+// buildMongoCommand 构建 MongoDB 命令的 OP_MSG body (最小 BSON 实现)
+// key 为字符串时，构建 {key: value} 作为命令名
+// key 为 map 时，展开所有字段
+func buildMongoCommand(db string, args ...interface{}) []byte {
+	var buf []byte
+	// flags: 0 (ChecksumPresent=0, MoreToCome=0, ExhaustAllowed=0)
+	buf = append(buf, 0, 0, 0, 0)
+	// section kind 0: body
+	buf = append(buf, 0)
+
+	// 构建 BSON 文档
+	if len(db) > 0 {
+		// {$db: "admin", ...}
+		docs := mongoDoc{"$db": db}
+		for i := 0; i < len(args); i++ {
+			switch v := args[i].(type) {
+			case string:
+				if i+1 < len(args) {
+					docs[v] = args[i+1]
+					i++
+				}
+			case mongoDoc:
+				for k, val := range v {
+					docs[k] = val
+				}
+			}
+		}
+		return append(buf, buildBSON(docs)...)
+	}
+
+	// 简单命令: {commandName: 1, $db: "admin"}
+	if len(args) >= 1 {
+		docs := mongoDoc{}
+		if cmdName, ok := args[0].(string); ok {
+			docs[cmdName] = 1
+		}
+		if len(args) >= 2 {
+			switch v := args[1].(type) {
+			case mongoDoc:
+				for k, val := range v {
+					docs[k] = val
+				}
+			}
+		}
+		if db != "" {
+			docs["$db"] = db
+		}
+		return append(buf, buildBSON(docs)...)
+	}
+
+	return buf
+}
+
+type mongoDoc map[string]interface{}
+
+// buildBSON 构建最小 BSON 文档（仅支持 string/int32/double/binary/subdocument）
+func buildBSON(doc mongoDoc) []byte {
+	var buf []byte
+	for k, v := range doc {
+		switch val := v.(type) {
+		case string:
+			buf = append(buf, 0x02) // type string
+			buf = append(buf, []byte(k)...)
+			buf = append(buf, 0x00)
+			b := []byte(val)
+			buf = append(buf, byte(len(b)+1), 0, 0, 0)
+			buf = append(buf, b...)
+			buf = append(buf, 0x00)
+		case int:
+			buf = append(buf, 0x10) // type int32
+			buf = append(buf, []byte(k)...)
+			buf = append(buf, 0x00)
+			i32 := make([]byte, 4)
+			binary.LittleEndian.PutUint32(i32, uint32(val))
+			buf = append(buf, i32...)
+		case float64:
+			buf = append(buf, 0x01) // type double
+			buf = append(buf, []byte(k)...)
+			buf = append(buf, 0x00)
+			f64 := make([]byte, 8)
+			binary.LittleEndian.PutUint64(f64, uint64(val))
+			buf = append(buf, f64...)
+		case mongoDoc:
+			buf = append(buf, 0x03) // type document
+			buf = append(buf, []byte(k)...)
+			buf = append(buf, 0x00)
+			sub := buildBSON(val)
+			buf = append(buf, sub...)
+		case []byte:
+			buf = append(buf, 0x05) // type binary
+			buf = append(buf, []byte(k)...)
+			buf = append(buf, 0x00)
+			buf = append(buf, byte(len(val)), 0, 0, 0)
+			buf = append(buf, 0x00) // subtype 0
+			buf = append(buf, val...)
+		case bool:
+			buf = append(buf, 0x08) // type boolean
+			buf = append(buf, []byte(k)...)
+			buf = append(buf, 0x00)
+			if val {
+				buf = append(buf, 0x01)
+			} else {
+				buf = append(buf, 0x00)
+			}
 		}
 	}
+	// 终止符
+	buf = append(buf, 0x00)
+	// 总长度前缀
+	lenBuf := make([]byte, 4)
+	binary.LittleEndian.PutUint32(lenBuf, uint32(len(buf)+4))
+	return append(lenBuf, buf...)
+}
 
-	return &AuthResult{
+// sendMongoMsg 发送 OP_MSG
-		Success:   true,
+func sendMongoMsg(ctx context.Context, conn io.ReadWriter, body []byte, timeout time.Duration) (int, error) {
-		Conn:      &mongoClientWrapper{client, ctx},
+	reqID := nextRequestID()
-		ErrorType: ErrorTypeUnknown,
+	// 消息头: [4B totalLen] [4B requestID] [4B responseTo] [4B opCode]
-		Error:     nil,
+	totalLen := uint32(len(body) + 16)
+	header := make([]byte, 16)
+	binary.LittleEndian.PutUint32(header[0:4], totalLen)
+	binary.LittleEndian.PutUint32(header[4:8], reqID)
+	// responseTo=0, opCode=opMsg
+	binary.LittleEndian.PutUint32(header[12:16], opMsg)
+
+	return conn.Write(append(header, body...))
+}
+
+// readMongoMsg 读取 MongoDB 响应
+func readMongoMsg(conn io.Reader, timeout time.Duration) ([]byte, error) {
+	// 读取 16 字节消息头
+	header := make([]byte, 16)
+	if _, err := io.ReadFull(conn, header); err != nil {
+		return nil, err
 	}
+	msgLen := binary.LittleEndian.Uint32(header[0:4])
+	if msgLen < 16 {
+		return nil, fmt.Errorf("invalid message length: %d", msgLen)
+	}
+	// 读取剩余 body
+	bodyLen := int(msgLen) - 16
+	if bodyLen <= 0 || bodyLen > 1024*1024 {
+		return nil, nil
+	}
+	body := make([]byte, bodyLen)
+	if _, err := io.ReadFull(conn, body); err != nil {
+		return nil, err
+	}
+	// 跳过 OP_MSG 头部 (flags + sections)，返回可用部分
+	// flags: 4 bytes, section kind: 1 byte → skip 5 bytes
+	if bodyLen > 5 {
+		return body[5:], nil
+	}
+	return body, nil
 }
 
-// mongoClientWrapper 包装 mongo.Client 以实现 io.Closer
+// dialTCP 带超时的 TCP 连接
-type mongoClientWrapper struct {
+func dialTCP(ctx context.Context, addr string, timeout time.Duration) (net.Conn, error) {
-	*mongo.Client
+	dialer := net.Dialer{Timeout: timeout}
-	ctx context.Context
+	return dialer.DialContext(ctx, "tcp", addr)
 }
 
-func (w *mongoClientWrapper) Close() error {
+// base64EncodeStr Base64 编码（标准编码）
-	return w.Disconnect(w.ctx)
+func base64EncodeStr(s string) string {
+	return base64.StdEncoding.EncodeToString([]byte(s))
+}
+
+// randomString 生成加密安全的随机字符串
+func randomString(n int) string {
+	const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	b := make([]byte, n)
+	if _, err := rand.Read(b); err != nil {
+		// 回退：不安全但不会失败
+		for i := range b {
+			b[i] = letters[i%len(letters)]
+		}
+		return string(b)
+	}
+	for i := range b {
+		b[i] = letters[int(b[i])%len(letters)]
+	}
+	return string(b)
 }
 
-// classifyMongoDBErrorType MongoDB错误分类
 func classifyMongoDBErrorType(err error) ErrorType {
 	if err == nil {
 		return ErrorTypeUnknown
 	}
-
 	mongoAuthErrors := []string{
 		"authentication failed",
 		"auth mechanism",
 		"unauthorized",
 		"scram",
 		"credential",
-		"invalid username",
-		"invalid password",
-		"login failed",
-		"access denied",
-		"authentication mechanism",
-		"sasl",
-		"mongo auth",
 		"bad auth",
-		"wrong credentials",
 	}
-
 	mongoNetworkErrors := append(CommonNetworkErrors,
 		"dial tcp",
 		"connection closed",
 		"eof",
-		"server selection timeout",
-		"connection pool closed",
-		"no reachable servers",
-		"topology",
-		"network error",
 	)
-
 	return ClassifyError(err, mongoAuthErrors, mongoNetworkErrors)
 }
 
+// ── 服务识别 ────────────────────────────────────────────────────
+
 func (p *MongoDBPlugin) identifyService(ctx context.Context, info *common.HostInfo, session *common.ScanSession) *ScanResult {
 	target := info.Target()
 
 	isUnauth, err := p.mongodbUnauth(ctx, info, session)
 	if err != nil {
-		return &ScanResult{
+		return &ScanResult{Success: false, Service: "mongodb", Error: err}
-			Success: false,
-			Service: "mongodb",
-			Error:   err,
-		}
 	}
 
 	if isUnauth {
 		common.LogVuln(i18n.Tr("mongodb_unauth", target))
-		return &ScanResult{
+		return &ScanResult{Type: plugins.ResultTypeVuln, Success: true, Service: "mongodb", VulInfo: "未授权访问"}
-			Type:    plugins.ResultTypeVuln,
-			Success: true,
-			Service: "mongodb",
-			VulInfo: "未授权访问",
-		}
 	}
 
 	common.LogSuccess(i18n.Tr("mongodb_auth_required", target))
-	return &ScanResult{
+	return &ScanResult{Type: plugins.ResultTypeService, Success: true, Service: "mongodb", Banner: "需要认证"}
-		Type:    plugins.ResultTypeService,
-		Success: true,
-		Service: "mongodb",
-		Banner:  "需要认证",
-	}
 }
 
-// mongodbUnauth 检测MongoDB未授权访问
 func (p *MongoDBPlugin) mongodbUnauth(ctx context.Context, info *common.HostInfo, session *common.ScanSession) (bool, error) {
-	msgPacket := p.createOpMsgPacket()
-	queryPacket := p.createOpQueryPacket()
 	realhost := fmt.Sprintf("%s:%d", info.Host, info.Port)
 
-	reply, err := p.checkMongoAuth(ctx, realhost, msgPacket, session)
+	reply, err := p.checkMongoAuth(ctx, realhost, createOpMsgPacket(), session)
 	if err != nil {
-		reply, err = p.checkMongoAuth(ctx, realhost, queryPacket, session)
+		reply, err = p.checkMongoAuth(ctx, realhost, createOpQueryPacket(), session)
 		if err != nil {
 			return false, err
 		}
@@ -240,7 +405,6 @@ func (p *MongoDBPlugin) mongodbUnauth(ctx context.Context, info *common.HostInfo
 	return false, fmt.Errorf("%s", i18n.Tr("service_not_identified", "MongoDB"))
 }
 
-// checkMongoAuth 检查MongoDB认证状态
 func (p *MongoDBPlugin) checkMongoAuth(ctx context.Context, address string, packet []byte, session *common.ScanSession) (string, error) {
 	conn, err := session.DialTCP(ctx, "tcp", address, session.Config.Timeout)
 	if err != nil {
@@ -255,11 +419,11 @@ func (p *MongoDBPlugin) checkMongoAuth(ctx context.Context, address string, pack
 	}
 
 	if deadlineErr := conn.SetDeadline(time.Now().Add(session.Config.Timeout)); deadlineErr != nil {
-		return "", fmt.Errorf("设置超时失败: %w", deadlineErr)
+		return "", deadlineErr
 	}
 
 	if _, writeErr := conn.Write(packet); writeErr != nil {
-		return "", fmt.Errorf("发送查询失败: %w", writeErr)
+		return "", writeErr
 	}
 
 	select {
@@ -270,8 +434,8 @@ func (p *MongoDBPlugin) checkMongoAuth(ctx context.Context, address string, pack
 
 	reply := make([]byte, 2048)
 	count, err := conn.Read(reply)
-	if err != nil && !errors.Is(err, io.EOF) {
+	if err != nil && err != io.EOF {
-		return "", fmt.Errorf("读取响应失败: %w", err)
+		return "", err
 	}
 
 	if count == 0 {
@@ -281,8 +445,7 @@ func (p *MongoDBPlugin) checkMongoAuth(ctx context.Context, address string, pack
 	return string(reply[:count]), nil
 }
 
-// createOpMsgPacket 创建OP_MSG查询包
+func createOpMsgPacket() []byte {
-func (p *MongoDBPlugin) createOpMsgPacket() []byte {
 	return []byte{
 		0x69, 0x00, 0x00, 0x00, 0x39, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0xdd, 0x07, 0x00, 0x00,
@@ -300,8 +463,7 @@ func (p *MongoDBPlugin) createOpMsgPacket() []byte {
 	}
 }
 
-// createOpQueryPacket 创建OP_QUERY查询包
+func createOpQueryPacket() []byte {
-func (p *MongoDBPlugin) createOpQueryPacket() []byte {
 	return []byte{
 		0x48, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
 		0x00, 0x00, 0x00, 0x00, 0xd4, 0x07, 0x00, 0x00,