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REGTEST: add a basic test for HTTP rules manipulating headers
There is always a risk of breaking HTTP processing when performing certain code changes. This test modifies a request's start line, uses variables, adds and modifies headers, interleaves them with the start-line changes, and makes use of different header formats involving duplicated names, duplicated values, empty fields and spaces around values. These operations are performed both in the frontend and in the backend, for both the request and the response. A CRC is computed on the concatenation of all the values, and the concatenations are sent as individual header fields as well to help debugging when the test fails. The test reliably works since 1.6, implying that the HTTP processing did not change. It currently fails on HTX.
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Willy Tarreau
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187
reg-tests/http-rules/h00000.vtc
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187
reg-tests/http-rules/h00000.vtc
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varnishtest "Composite HTTP manipulation test"
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#REQUIRE_VERSION=1.6
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# This config tests several http-request features and their interactions.
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# It extracts some samples, places them into variables, modifies some header
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# fields, appends multiple identical header fields, overwrites the start line
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# using several methods, then dumps the initial list of variables and the final
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# one, then applies CRC32 to these values as signatures that are easy to test.
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# Then it does it again in the backend after saving the current headers into
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# the same names prefixed by "fe-". Then it does the same on the response path.
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# If some modifications are performed, the crc values need to be adjusted based
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# on the failed logs.
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#
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# Run it with HAPROXY_PROGRAM=$PWD/haproxy varnishtest -l -k -t 1 "$1"
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feature ignore_unknown_macro
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server s1 {
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rxreq
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txresp \
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-status 234 \
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-hdr "hdr1: val1" \
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-hdr "hdr2: val2a" \
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-hdr "hdr2: val2b" \
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-hdr "hdr3: val3a, val3b" \
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-hdr "hdr4:" \
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-bodylen 14 \
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-body "This is a body"
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expect req.method == "GET"
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expect req.http.fe-sl1-crc == 992395575
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expect req.http.fe-sl2-crc == 1270056220
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expect req.http.fe-hdr-crc == 1719311923
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expect req.http.be-sl1-crc == 2604236007
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expect req.http.be-sl2-crc == 4181358964
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expect req.http.be-hdr-crc == 3634102538
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} -start
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haproxy h1 -conf {
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defaults
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mode http
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timeout connect 1s
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timeout client 1s
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timeout server 1s
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frontend fe
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bind "fd@${fe}"
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#### requests
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http-request set-var(req.method) method
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http-request set-var(req.uri) url
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http-request set-var(req.path) path
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http-request set-var(req.query) query
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http-request set-var(req.param) url_param(qs_arg)
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http-request set-header sl1 "sl1: "
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http-request set-method "%[str(GET)]"
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http-request set-uri concat(/bu/,req.uri,/eu)
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http-request set-path "/bp/%[var(req.path)]/ep"
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http-request set-query "bq&%[var(req.query)]&eq"
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http-request set-header sl2 "sl2: "
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http-request set-header sl1 "%[req.fhdr(sl1)] method=<%[var(req.method)]>; uri=<%[var(req.uri)]>; path=<%[var(req.path)]>;"
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http-request set-header sl1 "%[req.fhdr(sl1)] query=<%[var(req.query)]>; param=<%[var(req.param)]>"
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http-request set-header sl2 "%[req.fhdr(sl2)] method=<%[method]>; uri=<%[url]>; path=<%[path]>; "
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http-request set-header sl2 "%[req.fhdr(sl2)] query=<%[query]>; param=<%[url_param(qs_arg)]>"
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http-request set-header hdr "%[req.fhdr(hdr)] hdr1=<%[req.hdr(hdr1)]>; fhdr1=<%[req.fhdr(hdr1)]>;"
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http-request set-header hdr "%[req.fhdr(hdr)] hdr2=<%[req.hdr(hdr2)]>; fhdr2=<%[req.fhdr(hdr2)]>;"
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http-request set-header hdr "%[req.fhdr(hdr)] hdr3=<%[req.hdr(hdr3)]>; fhdr3=<%[req.fhdr(hdr3)]>;"
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http-request set-header hdr "%[req.fhdr(hdr)] hdr4=<%[req.hdr(hdr4)]>; fhdr4=<%[req.fhdr(hdr4)]>;"
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http-request set-header sl1-crc "%[req.fhdr(sl1),crc32]"
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http-request set-header sl2-crc "%[req.fhdr(sl2),crc32]"
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http-request set-header hdr-crc "%[req.fhdr(hdr),crc32]"
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#### responses
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http-response set-header be-sl1 "%[res.fhdr(sl1)]"
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http-response set-header be-sl2 "%[res.fhdr(sl2)]"
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http-response set-header be-hdr "%[res.fhdr(hdr)]"
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http-response set-header be-sl1-crc "%[res.fhdr(sl1-crc)]"
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http-response set-header be-sl2-crc "%[res.fhdr(sl2-crc)]"
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http-response set-header be-hdr-crc "%[res.fhdr(hdr-crc)]"
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http-response set-var(res.status) status
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http-response set-header sl1 "sl1: "
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http-response set-status 200
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http-response set-header sl2 "sl2: "
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http-response set-header sl1 "%[res.fhdr(sl1)] status=<%[var(res.status)]>;"
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http-response set-header sl2 "%[res.fhdr(sl2)] status=<%[status]>;"
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http-response set-header hdr "%[res.fhdr(hdr)] hdr1=<%[res.hdr(hdr1)]>; fhdr1=<%[res.fhdr(hdr1)]>;"
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http-response set-header hdr "%[res.fhdr(hdr)] hdr2=<%[res.hdr(hdr2)]>; fhdr2=<%[res.fhdr(hdr2)]>;"
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http-response set-header hdr "%[res.fhdr(hdr)] hdr3=<%[res.hdr(hdr3)]>; fhdr3=<%[res.fhdr(hdr3)]>;"
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http-response set-header hdr "%[res.fhdr(hdr)] hdr4=<%[res.hdr(hdr4)]>; fhdr4=<%[res.fhdr(hdr4)]>;"
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http-response set-header fe-sl1-crc "%[res.fhdr(sl1),crc32]"
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http-response set-header fe-sl2-crc "%[res.fhdr(sl2),crc32]"
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http-response set-header fe-hdr-crc "%[res.fhdr(hdr),crc32]"
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default_backend be
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backend be
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#### requests
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http-request set-header fe-sl1 "%[req.fhdr(sl1)]"
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http-request set-header fe-sl2 "%[req.fhdr(sl2)]"
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http-request set-header fe-hdr "%[req.fhdr(hdr)]"
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http-request set-header fe-sl1-crc "%[req.fhdr(sl1-crc)]"
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http-request set-header fe-sl2-crc "%[req.fhdr(sl2-crc)]"
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http-request set-header fe-hdr-crc "%[req.fhdr(hdr-crc)]"
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http-request set-var(req.method) method
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http-request set-var(req.uri) url
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http-request set-var(req.path) path
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http-request set-var(req.query) query
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http-request set-var(req.param) url_param(qs_arg)
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http-request set-header sl1 "sl1: "
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http-request set-method "%[str(GET)]"
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http-request set-uri concat(/bu/,req.uri,/eu)
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http-request set-path "/bp/%[var(req.path)]/ep"
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http-request set-query "bq&%[var(req.query)]&eq"
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http-request set-header sl2 "sl2: "
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http-request set-header sl1 "%[req.fhdr(sl1)] method=<%[var(req.method)]>; uri=<%[var(req.uri)]>; path=<%[var(req.path)]>;"
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http-request set-header sl1 "%[req.fhdr(sl1)] query=<%[var(req.query)]>; param=<%[var(req.param)]>"
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http-request set-header sl2 "%[req.fhdr(sl2)] method=<%[method]>; uri=<%[url]>; path=<%[path]>; "
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http-request set-header sl2 "%[req.fhdr(sl2)] query=<%[query]>; param=<%[url_param(qs_arg)]>"
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http-request set-header hdr "%[req.fhdr(hdr)] hdr1=<%[req.hdr(hdr1)]>; fhdr1=<%[req.fhdr(hdr1)]>;"
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http-request set-header hdr "%[req.fhdr(hdr)] hdr2=<%[req.hdr(hdr2)]>; fhdr2=<%[req.fhdr(hdr2)]>;"
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http-request set-header hdr "%[req.fhdr(hdr)] hdr3=<%[req.hdr(hdr3)]>; fhdr3=<%[req.fhdr(hdr3)]>;"
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http-request set-header hdr "%[req.fhdr(hdr)] hdr4=<%[req.hdr(hdr4)]>; fhdr4=<%[req.fhdr(hdr4)]>;"
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http-request set-header be-sl1-crc "%[req.fhdr(sl1),crc32]"
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http-request set-header be-sl2-crc "%[req.fhdr(sl2),crc32]"
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http-request set-header be-hdr-crc "%[req.fhdr(hdr),crc32]"
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#### responses
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http-response set-var(res.status) status
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http-response set-header sl1 "sl1: "
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http-response set-status 200
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http-response set-header sl2 "sl2: "
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http-response set-header sl1 "%[res.fhdr(sl1)] status=<%[var(res.status)]>;"
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http-response set-header sl2 "%[res.fhdr(sl2)] status=<%[status]>;"
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http-response set-header hdr "%[res.fhdr(hdr)] hdr1=<%[res.hdr(hdr1)]>; fhdr1=<%[res.fhdr(hdr1)]>;"
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http-response set-header hdr "%[res.fhdr(hdr)] hdr2=<%[res.hdr(hdr2)]>; fhdr2=<%[res.fhdr(hdr2)]>;"
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http-response set-header hdr "%[res.fhdr(hdr)] hdr3=<%[res.hdr(hdr3)]>; fhdr3=<%[res.fhdr(hdr3)]>;"
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http-response set-header hdr "%[res.fhdr(hdr)] hdr4=<%[res.hdr(hdr4)]>; fhdr4=<%[res.fhdr(hdr4)]>;"
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http-response set-header sl1-crc "%[res.fhdr(sl1),crc32]"
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http-response set-header sl2-crc "%[res.fhdr(sl2),crc32]"
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http-response set-header hdr-crc "%[res.fhdr(hdr),crc32]"
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server s1 ${s1_addr}:${s1_port}
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} -start
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client c1 -connect ${h1_fe_sock} {
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txreq \
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-req GET \
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-url /path/to/file.extension?qs_arg=qs_value \
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-hdr "hdr1: val1" \
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-hdr "hdr2: val2a" \
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-hdr "hdr2: val2b" \
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-hdr "hdr3: val3a, val3b" \
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-hdr "hdr4:"
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rxresp
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expect resp.status == 200
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expect resp.http.be-sl1-crc == 487202719
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expect resp.http.be-sl2-crc == 561949791
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expect resp.http.be-hdr-crc == 1719311923
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expect resp.http.fe-sl1-crc == 146151597
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expect resp.http.fe-sl2-crc == 561949791
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expect resp.http.fe-hdr-crc == 3634102538
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expect resp.bodylen == 14
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expect resp.body == "This is a body"
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} -run
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