Panic when reading in invalid config.toml of module #9417

deining · 2022-01-23T21:01:44Z

What version of Hugo are you using (`hugo version`)?

$ hugo version
hugo v0.92.1-85E2E862+extended windows/amd64 BuildDate=2022-01-27T11:44:41Z VendorInfo=gohugoio

Does this issue reproduce with the latest release?

Yes.

How to reproduce

At your command prompt, issue the following commands:

hugo new site github-issue-9417
cd github-issue-9417/
echo -n "[params" >> config.toml
hugo serve

Now, hugo panics:

$ hugo serve
hugo: collected modules in 1335 ms
panic: runtime error: index out of range [0] with length 0

goroutine 1 [running]:
github.com/pelletier/go-toml/v2.expect(...)
        /go/pkg/mod/github.com/pelletier/go-toml/v2@v2.0.0-beta.3.0.20210727221244-fa0796069526/parser.go:1033
github.com/pelletier/go-toml/v2.(*parser).parseStdTable(0xc00068a230, {0xc000532000, 0x2, 0x202})
        /go/pkg/mod/github.com/pelletier/go-toml/v2@v2.0.0-beta.3.0.20210727221244-fa0796069526/parser.go:198 +0x34a
github.com/pelletier/go-toml/v2.(*parser).parseTable(0x2030001, {0xc000532000, 0x2030001, 0x30001})
        /go/pkg/mod/github.com/pelletier/go-toml/v2@v2.0.0-beta.3.0.20210727221244-fa0796069526/parser.go:146 +0x39
github.com/pelletier/go-toml/v2.(*parser).parseExpression(0x2de37b0, {0xc000532000, 0x235f05a4511, 0xb5d7e0})
        /go/pkg/mod/github.com/pelletier/go-toml/v2@v2.0.0-beta.3.0.20210727221244-fa0796069526/parser.go:120 +0x9f
github.com/pelletier/go-toml/v2.(*parser).NextExpression(0xc00068a230)
        /go/pkg/mod/github.com/pelletier/go-toml/v2@v2.0.0-beta.3.0.20210727221244-fa0796069526/parser.go:61 +0x119
github.com/pelletier/go-toml/v2.(*decoder).nextExpr(...)
        /go/pkg/mod/github.com/pelletier/go-toml/v2@v2.0.0-beta.3.0.20210727221244-fa0796069526/unmarshaler.go:143
github.com/pelletier/go-toml/v2.(*decoder).fromParser(0xc000845d58, {0x26afd20, 0xc000006208, 0x3d0ab20})
        /go/pkg/mod/github.com/pelletier/go-toml/v2@v2.0.0-beta.3.0.20210727221244-fa0796069526/unmarshaler.go:191 +0x65
github.com/pelletier/go-toml/v2.(*decoder).FromParser(0xc000845d58, {0x25ed620, 0xc000006208})
        /go/pkg/mod/github.com/pelletier/go-toml/v2@v2.0.0-beta.3.0.20210727221244-fa0796069526/unmarshaler.go:177 +0xf8
github.com/pelletier/go-toml/v2.Unmarshal({0xc000532000, 0x2, 0x202}, {0x25ed620, 0xc000006208})
        /go/pkg/mod/github.com/pelletier/go-toml/v2@v2.0.0-beta.3.0.20210727221244-fa0796069526/unmarshaler.go:27 +0x112
github.com/gohugoio/hugo/parser/metadecoders.Decoder.UnmarshalTo({0x2e5c640, 0x0}, {0xc000532000, 0x0, 0xc000532000}, {0x28dbb68, 0x4}, {0x25ed620, 0xc000006208})
        /root/project/hugo/parser/metadecoders/decoder.go:159 +0x425
github.com/gohugoio/hugo/parser/metadecoders.Decoder.UnmarshalToMap({0x2e5c2c0, 0x0}, {0xc000532000, 0x2, 0x202}, {0x28dbb68, 0x4})
        /root/project/hugo/parser/metadecoders/decoder.go:67 +0xad
github.com/gohugoio/hugo/parser/metadecoders.Decoder.UnmarshalFileToMap({0x845f58, 0xc0}, {0x2e5c2c0, 0x3d6c440}, {0xc00003aa80, 0x24})
        /root/project/hugo/parser/metadecoders/decoder.go:84 +0xaa
github.com/gohugoio/hugo/config.loadConfigFromFile({0x2e5c2c0, 0x3d6c440}, {0xc00003aa80, 0xe9f5c5})
        /root/project/hugo/config/configLoader.go:86 +0x4a
github.com/gohugoio/hugo/config.FromFile({0x2e5c2c0, 0x3d6c440}, {0xc00003aa80, 0x24})
        /root/project/hugo/config/configLoader.go:61 +0x31
github.com/gohugoio/hugo/modules.(*collector).applyThemeConfig(0xc00069d5c0, 0xc0007fa2c0)
        /root/project/hugo/modules/collect.go:445 +0x388
github.com/gohugoio/hugo/modules.(*collector).add(0xc00069d5c0, 0xc0007fa160, {{0xc0000428e8, 0x14}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...}, ...)
        /root/project/hugo/modules/collect.go:323 +0x985
github.com/gohugoio/hugo/modules.(*collector).addAndRecurse(0xc000262230, 0xc0007fa160, 0x0)
        /root/project/hugo/modules/collect.go:348 +0x1ec
github.com/gohugoio/hugo/modules.(*collector).collect(0xc00069d5c0)
        /root/project/hugo/modules/collect.go:522 +0x387
github.com/gohugoio/hugo/modules.(*Client).collect(0xc0006ad180, 0x19)
        /root/project/hugo/modules/collect.go:96 +0x79
github.com/gohugoio/hugo/modules.(*Client).Collect(0xc0006ad180)
        /root/project/hugo/modules/collect.go:69 +0x9f
github.com/gohugoio/hugo/hugolib.configLoader.collectModules({{0x2e5db50, 0xc00007d090}, {{0x2e5c2c0, 0x3d6c440}, {0x2e625d0, 0xc00069d1a0}, {0x0, 0x0}, {0xc00003f840, 0x16}, ...}}, ...)
        /root/project/hugo/hugolib/config.go:420 +0x510
github.com/gohugoio/hugo/hugolib.LoadConfig({{0x2e5c2c0, 0x3d6c440}, {0x2e625d0, 0xc00069d1a0}, {0x0, 0x0}, {0xc00003f840, 0x16}, {0xc00003f840, 0x16}, ...}, ...)
        /root/project/hugo/hugolib/config.go:148 +0xbbe
github.com/gohugoio/hugo/commands.(*commandeer).loadConfig(0xc0004255e0)
        /root/project/hugo/commands/commandeer.go:309 +0x365
github.com/gohugoio/hugo/commands.newCommandeer(0x1, 0x1, 0x1, 0xc000425340, {0x2e0c840, 0xc000363f40}, 0xc00028fbc0, {0x0, 0x0, 0x0})
        /root/project/hugo/commands/commandeer.go:193 +0x310
github.com/gohugoio/hugo/commands.initializeConfig(0xd2, 0xee, 0xb3, 0x290eec0, {0x2e0c840, 0xc000363f40}, 0xc00061fc88)
        /root/project/hugo/commands/hugo.go:125 +0x31
github.com/gohugoio/hugo/commands.(*serverCmd).server(0xc000363f40, 0xc000176780, {0xc00061fcf0, 0x0, 0x0})
        /root/project/hugo/commands/server.go:242 +0x1ce
github.com/spf13/cobra.(*Command).execute(0xc000176780, {0x3d6ca08, 0x0, 0x0})
        /go/pkg/mod/github.com/spf13/cobra@v1.2.1/command.go:856 +0x60e
github.com/spf13/cobra.(*Command).ExecuteC(0xc00069f680)
        /go/pkg/mod/github.com/spf13/cobra@v1.2.1/command.go:974 +0x3bc
github.com/gohugoio/hugo/commands.Execute({0xc0000963b0, 0x1, 0x1})
        /root/project/hugo/commands/hugo.go:92 +0xb4
main.main()
        /root/project/hugo/main.go:23 +0x58

The text was updated successfully, but these errors were encountered:

bep · 2022-01-28T09:09:08Z

This is an upstream issue. I will update the TOML library; if that doesn't work, please file an issue at https://github.com/pelletier/go-toml/issues

bep · 2022-01-28T09:16:55Z

See #9439

jmooring · 2022-01-28T18:37:04Z

With v0.92.0 I am unable to reproduce the panic as described.

git clone --single-branch -b hugo-github-issue-9417 https://github.com/jmooring/hugo-testing hugo-github-issue-9417
cd hugo-github-issue-9417
cd test-site
hugo server

Error: "/home/jmooring/temp/hugo-github-issue-9417/test-module/config.toml:1:3": unmarshal failed: toml: expected character U+005D

deining · 2022-01-28T19:21:22Z

With v0.92.0 I am unable to reproduce the panic as described.

Inside your file test-module/config.toml there is a newline at the end of the first line. Remove this newline so that you have one single line only, and you will be confronted with the panic.
I updated my post so that this gets reflected.

jmooring · 2022-01-28T20:17:05Z

@deining I updated the example and can reproduce the problem. The fact that your invalid config.toml file exists in a module is irrelevant. The panic occurs when unmarshaling any TOML file where the last line¹ contains an incomplete key (example: [params) and does not end with a newline.

@bep I confirm that this is resolved with #9440. No panic, and the error is:

unmarshal failed: toml: expected character ] but the document ended here

I use the term "line" loosely because, by POSIX standards, it isn't a line. See definition. ↩

deining · 2022-01-29T11:54:08Z

@deining I updated the example and can reproduce the problem.

Great.

The fact that your invalid config.toml file exists in a module is irrelevant.

You are right. I updated my initial post with instructions how to reproduce the problem quickly.

@bep I confirm that this is resolved with #9440. No panic, and the error is:

unmarshal failed: toml: expected character ] but the document ended here

Glad to see that the issue was fixed upstream already.

github-actions · 2022-02-06T02:00:58Z

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

deining added Bug NeedsTriage labels Jan 23, 2022

patche-v mentioned this issue Jan 27, 2022

9417/Fix panic when reading invalid config file #9435

Closed

bep added Upstream and removed NeedsTriage labels Jan 28, 2022

bep added this to the v0.93.0 milestone Jan 28, 2022

bep closed this as completed in 5ca40c8 Jan 29, 2022

github-actions bot added the Outdated label Feb 6, 2022

github-actions bot locked as resolved and limited conversation to collaborators Feb 6, 2022

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Panic when reading in invalid config.toml of module #9417

Panic when reading in invalid config.toml of module #9417

deining commented Jan 23, 2022 •

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bep commented Jan 28, 2022

bep commented Jan 28, 2022

jmooring commented Jan 28, 2022

deining commented Jan 28, 2022 •

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jmooring commented Jan 28, 2022 •

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deining commented Jan 29, 2022 •

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github-actions bot commented Feb 6, 2022

Panic when reading in invalid config.toml of module #9417

Panic when reading in invalid config.toml of module #9417

Comments

deining commented Jan 23, 2022 • edited Loading

What version of Hugo are you using (hugo version)?

Does this issue reproduce with the latest release?

How to reproduce

bep commented Jan 28, 2022

bep commented Jan 28, 2022

jmooring commented Jan 28, 2022

deining commented Jan 28, 2022 • edited Loading

jmooring commented Jan 28, 2022 • edited Loading

Footnotes

deining commented Jan 29, 2022 • edited Loading

github-actions bot commented Feb 6, 2022

deining commented Jan 23, 2022 •

edited

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What version of Hugo are you using (`hugo version`)?

deining commented Jan 28, 2022 •

edited

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jmooring commented Jan 28, 2022 •

edited

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deining commented Jan 29, 2022 •

edited

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