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УрФУ. Отправка POST-запроса, перехват трафика с помощью tcpdump
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| import requests | |
| import json | |
| request = { | |
| "github": "a-chabin", | |
| "Name": "Alexander", | |
| "Surname": "Chabin" | |
| } | |
| json_request = json.dumps(request) | |
| response = requests.post("http://httpbin.org/post", json_request) | |
| ------------------------------------------------ | |
| Ответ сервера: | |
| HTTP/1.1 200 OK | |
| Connection: keep-alive | |
| Server: meinheld/0.6.1 | |
| Date: Sat, 07 Oct 2017 18:17:37 GMT | |
| Content-Type: application/json | |
| Access-Control-Allow-Origin: * | |
| Access-Control-Allow-Credentials: true | |
| X-Powered-By: Flask | |
| X-Processed-Time: 0.000799179077148 | |
| Content-Length: 513 | |
| Via: 1.1 vegur | |
| { | |
| "args": {}, | |
| "data": "{\"Surname\": \"Chabin\", \"Name\": \"Alexander\", \"github\": \"a-chabin\"}", | |
| "files": {}, | |
| "form": {}, | |
| "headers": { | |
| "Accept": "*/*", | |
| "Accept-Encoding": "gzip, deflate", | |
| "Connection": "close", | |
| "Content-Length": "64", | |
| "Host": "httpbin.org", | |
| "User-Agent": "python-requests/2.10.0" | |
| }, | |
| "json": { | |
| "Name": "Alexander", | |
| "Surname": "Chabin", | |
| "github": "a-chabin" | |
| }, | |
| "origin": "87.224.209.39", | |
| "url": "http://httpbin.org/post" | |
| } | |
| ------------------------------------------------ | |
| Результат работы утилиты tcpdump: | |
| tcpdump: listening on wlp8s0, link-type EN10MB (Ethernet), capture size 262144 bytes | |
| 23:17:37.348067 IP (tos 0x0, ttl 64, id 63231, offset 0, flags [DF], proto TCP (6), length 60) | |
| linux.44730 > ec2-174-129-214-98.compute-1.amazonaws.com.http: Flags [S], cksum 0xfb49 (correct), seq 1924614509, win 29200, options [mss 1460,sackOK,TS val 3745466948 ecr 0,nop,wscale 7], length 0 | |
| E..<..@.@......f...b...Pr.Im......r..I......... | |
| .?JD........ | |
| 23:17:37.434416 IP (tos 0x0, ttl 1, id 1353, offset 0, flags [DF], proto TCP (6), length 60) | |
| linux.43988 > ec2-174-129-214-98.compute-1.amazonaws.com.hostmon: Flags [S], cksum 0x3209 (correct), seq 3098327790, win 29200, options [mss 1460,sackOK,TS val 3745466969 ecr 0,nop,wscale 7], length 0 | |
| E..<.I@........f...b..............r.2 ......... | |
| .?JY........ | |
| 23:17:37.506800 IP (tos 0x0, ttl 231, id 0, offset 0, flags [DF], proto TCP (6), length 60) | |
| ec2-174-129-214-98.compute-1.amazonaws.com.http > linux.44730: Flags [S.], cksum 0x7637 (correct), seq 509246351, ack 1924614510, win 26847, options [mss 1380,sackOK,TS val 284025770 ecr 3745466948,nop,wscale 8], length 0 | |
| E..<..@...M....b...f.P...Z{.r.In..h.v7.....d... | |
| .....?JD.... | |
| 23:17:37.506892 IP (tos 0x0, ttl 64, id 63232, offset 0, flags [DF], proto TCP (6), length 52) | |
| linux.44730 > ec2-174-129-214-98.compute-1.amazonaws.com.http: Flags [.], cksum 0x0c88 (correct), seq 1, ack 1, win 229, options [nop,nop,TS val 3745466987 ecr 284025770], length 0 | |
| E..4..@.@......f...b...Pr.In.Z{............ | |
| .?Jk.... | |
| 23:17:37.507215 IP (tos 0x0, ttl 64, id 63233, offset 0, flags [DF], proto TCP (6), length 219) | |
| linux.44730 > ec2-174-129-214-98.compute-1.amazonaws.com.http: Flags [P.], cksum 0xdf08 (correct), seq 1:168, ack 1, win 229, options [nop,nop,TS val 3745466987 ecr 284025770], length 167: HTTP, length: 167 | |
| POST /post HTTP/1.1 | |
| Host: httpbin.org | |
| User-Agent: python-requests/2.10.0 | |
| Connection: keep-alive | |
| Accept: */* | |
| Accept-Encoding: gzip, deflate | |
| Content-Length: 64 | |
| E.....@.@..(...f...b...Pr.In.Z{............ | |
| .?Jk....POST /post HTTP/1.1 | |
| Host: httpbin.org | |
| User-Agent: python-requests/2.10.0 | |
| Connection: keep-alive | |
| Accept: */* | |
| Accept-Encoding: gzip, deflate | |
| Content-Length: 64 | |
| 23:17:37.507430 IP (tos 0x0, ttl 64, id 63234, offset 0, flags [DF], proto TCP (6), length 116) | |
| linux.44730 > ec2-174-129-214-98.compute-1.amazonaws.com.http: Flags [P.], cksum 0xbcf2 (correct), seq 168:232, ack 1, win 229, options [nop,nop,TS val 3745466987 ecr 284025770], length 64: HTTP | |
| E..t..@.@......f...b...Pr.J..Z{............ | |
| .?Jk....{"Surname": "Chabin", "Name": "Alexander", "github": "a-chabin"} | |
| 23:17:37.666365 IP (tos 0x0, ttl 231, id 38978, offset 0, flags [DF], proto TCP (6), length 52) | |
| ec2-174-129-214-98.compute-1.amazonaws.com.http > linux.44730: Flags [.], cksum 0x0c30 (correct), seq 1, ack 168, win 110, options [nop,nop,TS val 284025810 ecr 3745466987], length 0 | |
| E..4.B@........b...f.P...Z{.r.J....n.0..... | |
| .....?Jk | |
| 23:17:37.666533 IP (tos 0x0, ttl 231, id 38979, offset 0, flags [DF], proto TCP (6), length 52) | |
| ec2-174-129-214-98.compute-1.amazonaws.com.http > linux.44730: Flags [.], cksum 0x0bf0 (correct), seq 1, ack 232, win 110, options [nop,nop,TS val 284025810 ecr 3745466987], length 0 | |
| E..4.C@........b...f.P...Z{.r.JU...n....... | |
| .....?Jk | |
| 23:17:37.670267 IP (tos 0x0, ttl 231, id 38980, offset 0, flags [DF], proto TCP (6), length 868) | |
| ec2-174-129-214-98.compute-1.amazonaws.com.http > linux.44730: Flags [P.], cksum 0x29c5 (correct), seq 1:817, ack 232, win 110, options [nop,nop,TS val 284025811 ecr 3745466987], length 816: HTTP, length: 816 | |
| HTTP/1.1 200 OK | |
| Connection: keep-alive | |
| Server: meinheld/0.6.1 | |
| Date: Sat, 07 Oct 2017 18:17:37 GMT | |
| Content-Type: application/json | |
| Access-Control-Allow-Origin: * | |
| Access-Control-Allow-Credentials: true | |
| X-Powered-By: Flask | |
| X-Processed-Time: 0.000799179077148 | |
| Content-Length: 513 | |
| Via: 1.1 vegur | |
| { | |
| "args": {}, | |
| "data": "{\"Surname\": \"Chabin\", \"Name\": \"Alexander\", \"github\": \"a-chabin\"}", | |
| "files": {}, | |
| "form": {}, | |
| "headers": { | |
| "Accept": "*/*", | |
| "Accept-Encoding": "gzip, deflate", | |
| "Connection": "close", | |
| "Content-Length": "64", | |
| "Host": "httpbin.org", | |
| "User-Agent": "python-requests/2.10.0" | |
| }, | |
| "json": { | |
| "Name": "Alexander", | |
| "Surname": "Chabin", | |
| "github": "a-chabin" | |
| }, | |
| "origin": "87.224.209.39", | |
| "url": "http://httpbin.org/post" | |
| } | |
| E..d.D@....\...b...f.P...Z{.r.JU...n)...... | |
| .....?JkHTTP/1.1 200 OK | |
| Connection: keep-alive | |
| Server: meinheld/0.6.1 | |
| Date: Sat, 07 Oct 2017 18:17:37 GMT | |
| Content-Type: application/json | |
| Access-Control-Allow-Origin: * | |
| Access-Control-Allow-Credentials: true | |
| X-Powered-By: Flask | |
| X-Processed-Time: 0.000799179077148 | |
| Content-Length: 513 | |
| Via: 1.1 vegur | |
| { | |
| "args": {}, | |
| "data": "{\"Surname\": \"Chabin\", \"Name\": \"Alexander\", \"github\": \"a-chabin\"}", | |
| "files": {}, | |
| "form": {}, | |
| "headers": { | |
| "Accept": "*/*", | |
| "Accept-Encoding": "gzip, deflate", | |
| "Connection": "close", | |
| "Content-Length": "64", | |
| "Host": "httpbin.org", | |
| "User-Agent": "python-requests/2.10.0" | |
| }, | |
| "json": { | |
| "Name": "Alexander", | |
| "Surname": "Chabin", | |
| "github": "a-chabin" | |
| }, | |
| "origin": "87.224.209.39", | |
| "url": "http://httpbin.org/post" | |
| } | |
| 23:17:37.670353 IP (tos 0x0, ttl 64, id 63235, offset 0, flags [DF], proto TCP (6), length 52) | |
| linux.44730 > ec2-174-129-214-98.compute-1.amazonaws.com.http: Flags [.], cksum 0x0813 (correct), seq 232, ack 817, win 241, options [nop,nop,TS val 3745467028 ecr 284025811], length 0 | |
| E..4..@.@......f...b...Pr.JU.Z~............ | |
| .?J..... | |
| 23:17:37.672687 IP (tos 0x0, ttl 64, id 63236, offset 0, flags [DF], proto TCP (6), length 52) | |
| linux.44730 > ec2-174-129-214-98.compute-1.amazonaws.com.http: Flags [F.], cksum 0x0811 (correct), seq 232, ack 817, win 241, options [nop,nop,TS val 3745467029 ecr 284025811], length 0 | |
| E..4..@.@......f...b...Pr.JU.Z~............ | |
| .?J..... | |
| 23:17:37.831895 IP (tos 0x0, ttl 231, id 38981, offset 0, flags [DF], proto TCP (6), length 52) | |
| ec2-174-129-214-98.compute-1.amazonaws.com.http > linux.44730: Flags [F.], cksum 0x086b (correct), seq 817, ack 233, win 110, options [nop,nop,TS val 284025851 ecr 3745467029], length 0 | |
| E..4.E@........b...f.P...Z~.r.JV...n.k..... | |
| .....?J. | |
| 23:17:37.831960 IP (tos 0x0, ttl 64, id 63237, offset 0, flags [DF], proto TCP (6), length 52) | |
| linux.44730 > ec2-174-129-214-98.compute-1.amazonaws.com.http: Flags [.], cksum 0x07c0 (correct), seq 233, ack 818, win 241, options [nop,nop,TS val 3745467069 ecr 284025851], length 0 | |
| E..4..@.@......f...b...Pr.JV.Z~............ | |
| .?J..... |
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