8000 net/url: can't roundtrip path-only url with double leading slash · Issue #44631 · golang/go · GitHub
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net/url: can't roundtrip path-only url with double leading slash #44631

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cor0ps opened this issue Feb 26, 2021 · 1 comment
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net/url: can't roundtrip path-only url with double leading slash #44631

cor0ps opened this issue Feb 26, 2021 · 1 comment
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NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Milestone
Unplanned

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@cor0ps
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cor0ps commented Feb 26, 2021

What version of Go are you using (go version)?

$ go version
go version go1.16 linux/amd64

Does this issue reproduce with the latest release?

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
[root@cor0ps ~]# go env
GO111MODULE="off"
GOARCH="amd64"
GOBIN=""
GOCACHE="/root/.cache/go-build"
GOENV="/root/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/usr/local/sbin/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/bin:/opt/go/"
GOPRIVATE=""
GOPROXY="https://mirrors.aliyun.com/goproxy/"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.16"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build2374357860=/tmp/go-build -gno-record-gcc-switches"

What did you do?

https://play.golang.org/p/aGhEYiEiSfN
panic: parse "//%20f": invalid URL escape "%20"

goroutine 1 [running]:
main.main()
/tmp/sandbox000750098/prog.go:23 +0x269

What did you expect to see?

first parse and second parse need same

What did you see instead?

panic: parse "//%20f": invalid URL escape "%20"

goroutine 1 [running]:
main.main()
/tmp/sandbox000750098/prog.go:23 +0x269
@seankhliao seankhliao changed the title url.Parse twice maybe lead to panic net/url: can't roundtrip path-only url with double leading slash Feb 26, 2021
@seankhliao seankhliao added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Feb 26, 2021
@seankhliao seankhliao added this to the Unplanned milestone Aug 20, 2022
@gabyhelp gabyhelp mentioned this issue Jul 1, 2024
Closed
@gabyhelp gabyhelp mentioned this issue Feb 27, 2025
Closed
@seankhliao
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unfortunate, but I think it's working as intended.
EscapedPath ignores the RawPath because it isn't a valid escaped form.

@seankhliao seankhliao closed this as not planned Won't fix, can't repro, duplicate, stale Apr 30, 2025
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