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We re-slice the data being processed at the stat of each loop. If the
var that we use to calculate where to re-slice is < 0 or > the length
of the remaining data, return instead of attempting to re-slice.
Change-Id: I1d6c2b6c596feedeea8feeaace370ea73ba02c4c
Reviewed-on: https://go-review.googlesource.com/c/go/+/715260
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
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When a block is missing the END line trailer, calculate the indexes of
the end and end trailer _before_ continuing the loop, making the
reslicing at the start of the loop work as expected.
Change-Id: If45c8cb473315623618f02cc7609f517a72d232d
Reviewed-on: https://go-review.googlesource.com/c/go/+/714200
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
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When the passed byte slice has leading garbage, properly handle ignoring
it and continuing to parse the slice until we find a valid block (or
nothing).
Change-Id: I07e937d9c754fd71b028b99450b48f57b4464457
Reviewed-on: https://go-review.googlesource.com/c/go/+/712140
Reviewed-by: Damien Neil <dneil@google.com>
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Because Decode scanned the input first for the first BEGIN line, and
then the first END line, the complexity of Decode is quadratic. If the
input contained a large number of BEGINs and then a single END right at
the end of the input, we would find the first BEGIN, and then scan the
entire input for the END, and fail to parse the block, so move onto the
next BEGIN, scan the entire input for the END, etc.
Instead, look for the first END in the input, and then the first BEGIN
that precedes the found END. We then process the bytes between the BEGIN
and END, and move onto the bytes after the END for further processing.
This gives us linear complexity.
Fixes CVE-2025-61723
Fixes #75676
Change-Id: I813c4f63e78bca4054226c53e13865c781564ccf
Reviewed-on: https://go-internal-review.googlesource.com/c/go/+/2921
Reviewed-by: Nicholas Husin <husin@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/709858
TryBot-Bypass: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
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Fixes #53524
Change-Id: I929ee3c055c3ca564cd6cc374124f493aea2fbf6
Reviewed-on: https://go-review.googlesource.com/c/go/+/421636
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Junyang Shao <shaojunyang@google.com>
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Replace reflect.DeepEqual with slices.Equal/maps.Equal, which is
much faster.
Change-Id: I62ad60a66e28cfb2bb49c36037bafd4b9d201e88
GitHub-Last-Rev: 79554baddb1856260a44ba6587c205d223a527b1
GitHub-Pull-Request: golang/go#67611
Reviewed-on: https://go-review.googlesource.com/c/go/+/587818
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Doing this because the slices functions are slightly faster and
slightly easier to use. It also removes one dependency layer.
This CL does not change packages that are used during bootstrap,
as the bootstrap compiler does not have the required slices functions.
It does not change the go/scanner package because the ErrorList
Len, Swap, and Less methods are part of the Go 1 API.
Change-Id: If52899be791c829198e11d2408727720b91ebe8a
Reviewed-on: https://go-review.googlesource.com/c/go/+/587655
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Reviewed-by: Damien Neil <dneil@google.com>
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Across all encoding packages, linkify declarations if possible.
In some cases, we convert a code block into a bulleted list,
which then further allows for more linkification.
Change-Id: I68fedf362615b34228bab5d4859b7d87d831c570
Reviewed-on: https://go-review.googlesource.com/c/go/+/524977
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Reviewed-by: qiulaidongfeng <2645477756@qq.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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Change-Id: I164d350ca480640996055dedf38d962921c474a6
Reviewed-on: https://go-review.googlesource.com/c/go/+/435975
Run-TryBot: Ian Lance Taylor <iant@google.com>
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Previously, Decode called decodeError, a recursive function that was
prone to stack overflows when given a large PEM file containing errors.
Credit to Juho Nurminen of Mattermost who reported the error.
Fixes CVE-2022-24675
Fixes #51853
Change-Id: Iffe768be53c8ddc0036fea0671d290f8f797692c
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1391157
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Filippo Valsorda <valsorda@google.com>
(cherry picked from commit 794ea5e828010e8b68493b2fc6d2963263195a02)
Reviewed-on: https://go-review.googlesource.com/c/go/+/399820
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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[This CL is part of a sequence implementing the proposal #51082.
The design doc is at https://go.dev/s/godocfmt-design.]
Run the updated gofmt, which reformats doc comments,
on the main repository. Vendored files are excluded.
For #51082.
Change-Id: I7332f099b60f716295fb34719c98c04eb1a85407
Reviewed-on: https://go-review.googlesource.com/c/go/+/384268
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Many uses of Index/IndexByte/IndexRune/Split/SplitN
can be written more clearly using the new Cut functions.
Do that. Also rewrite to other functions if that's clearer.
For #46336.
Change-Id: I68d024716ace41a57a8bf74455c62279bde0f448
Reviewed-on: https://go-review.googlesource.com/c/go/+/351711
Trust: Russ Cox <rsc@golang.org>
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The old ioutil references are still valid, but update our code
to reflect best practices and get used to the new locations.
Code compiled with the bootstrap toolchain
(cmd/asm, cmd/dist, cmd/compile, debug/elf)
must remain Go 1.4-compatible and is excluded.
Also excluded vendored code.
For #41190.
Change-Id: I6d86f2bf7bc37a9d904b6cee3fe0c7af6d94d5b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/263142
Trust: Russ Cox <rsc@golang.org>
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Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
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Gerrit is complaining about pushes that affect these files
and forcing people to use -o nokeycheck, which defeats
the point of the check. Hide the keys from this kind of scan
by marking them explicitly as testing keys.
This is a little annoying but better than training everyone
who ever edits one of these test files to reflexively override
the Gerrit check.
The only remaining keys explicitly marked as private instead
of testing are in examples, and there's not much to do
about those. Hopefully they are not edited as much.
Change-Id: I4431592b5266cb39fe6a80b40e742d97da803a0b
Reviewed-on: https://go-review.googlesource.com/c/go/+/178178
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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encoding/base64 already skips \r and \n when decoding, so this package
must only deal with spaces and tabs. Those aren't nearly as common, so
we can add a fast path with bytes.ContainsAny to skip the costly alloc
and filtering code.
name old time/op new time/op delta
Decode-8 279µs ± 0% 259µs ± 1% -7.07% (p=0.002 n=6+6)
name old speed new speed delta
Decode-8 319MB/s ± 0% 343MB/s ± 1% +7.61% (p=0.002 n=6+6)
name old alloc/op new alloc/op delta
Decode-8 164kB ± 0% 74kB ± 0% -54.90% (p=0.002 n=6+6)
name old allocs/op new allocs/op delta
Decode-8 12.0 ± 0% 11.0 ± 0% -8.33% (p=0.002 n=6+6)
Change-Id: Idfca8700c52f46eb70a4a7e0d2db3bf0124e4699
Reviewed-on: https://go-review.googlesource.com/c/155964
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
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Change-Id: I7a1046f5e0aedbbdd1106a616de410fe4e0cb7d8
Reviewed-on: https://go-review.googlesource.com/c/92295
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Fixes #22238
Change-Id: I8184f789bd4120f3e71c9374c7c2fcbfa95935bf
Reviewed-on: https://go-review.googlesource.com/132635
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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Originally these routines could not fail except by
returning errors from the underlying writer.
Then we realized that header keys containing colons
needed to be rejected, and we started returning an error
from Encode. But that only happens after writing a
partial PEM block to the underlying writer, which is
unfortunate, but at least it was undocumented.
CL 77790 then documented this unfortunate behavior.
Instead of documenting unfortunate behavior, fix it.
Change-Id: Ic7467a576c4cecd16a99138571a1269cc4f96204
Reviewed-on: https://go-review.googlesource.com/82076
Run-TryBot: Russ Cox <rsc@golang.org>
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Change-Id: Ib9ec3524b712e016a9dd2fbee5555362c1a0cb59
Reviewed-on: https://go-review.googlesource.com/77770
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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Included in a warning that EncodeToMemory may return an incomplete PEM
encoded structure if invalid headers are supplied. Example:
pem.EncodeToMemory(&pem.Block{
Headers: map[string]string{
"a": "test1",
"b:c": "test2",
},
})
Returns:
-----BEGIN -----
a: test1
Change-Id: Ia9cf0202f985e3cf210aabb6f07667e581ff081f
Reviewed-on: https://go-review.googlesource.com/77790
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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bytes.IndexByte can be used wherever the second argument to
strings.Index is exactly one byte long, so we do that with this change.
This avoids generating unnecessary string symbols/converison and saves
a few calls to bytes.Index.
Change-Id: If31c775790e01edfece1169e398ad6a754fb4428
Reviewed-on: https://go-review.googlesource.com/66373
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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Fixes #19829.
Change-Id: I8500fd73c37b504d6ea25f5aff7017fbc0718570
Reviewed-on: https://go-review.googlesource.com/39314
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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The header is literally
Key: Value
If the value or the key has leading or trailing spaces, those will
be lost by the round trip.
Found because testing/quick returns different values now.
Change-Id: I0f574bdbb5990689509c24309854d8f814b5efa0
Reviewed-on: https://go-review.googlesource.com/39211
Run-TryBot: Russ Cox <rsc@golang.org>
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Previously the code didn't check for extra data after the final five
dashes of the ending line of a PEM block.
Fixes #19147
Fixes #7042
Change-Id: Idaab2390914a2bed8c2c12b14dfb6d68233fdfec
Reviewed-on: https://go-review.googlesource.com/37147
Reviewed-by: Adam Langley <agl@golang.org>
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For #16360.
Change-Id: I99d1e5ab1f814f65b3066a498158a442f1bd477f
Reviewed-on: https://go-review.googlesource.com/31137
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Previously the code didn't check the type and final five dashes of the
ending line of a PEM block.
Fixes #16335.
Change-Id: Ia544e8739ea738d767cfe56c8d46204214ec0b5a
Reviewed-on: https://go-review.googlesource.com/27391
Run-TryBot: Adam Langley <agl@golang.org>
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The tree's pretty inconsistent about single space vs double space
after a period in documentation. Make it consistently a single space,
per earlier decisions. This means contributors won't be confused by
misleading precedence.
This CL doesn't use go/doc to parse. It only addresses // comments.
It was generated with:
$ perl -i -npe 's,^(\s*// .+[a-z]\.) +([A-Z]),$1 $2,' $(git grep -l -E '^\s*//(.+\.) +([A-Z])')
$ go test go/doc -update
Change-Id: Iccdb99c37c797ef1f804a94b22ba5ee4b500c4f7
Reviewed-on: https://go-review.googlesource.com/20022
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Dave Day <djd@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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This adapts pem.TestFuzz to sanitize the generated Block fields,
because the encoder and wireformat do not differentiate between nil
and empty slices and maps, while reflect.DeepEqual rightfully does.
In the commit mentioned below, we adapt quick.Value in
testing/quick to generate these value states, which had heretofore
been impossible with the standard library fuzz test facility.
This commit is a piecemeal extraction from ...
https://go-review.googlesource.com/#/c/16470
..., which rsc requested to be separated from the nil slice and map
generations.
Change-Id: Iec751a2b0082af6e672a09dc9b7f4b4fb309e8a8
Reviewed-on: https://go-review.googlesource.com/17499
Reviewed-by: Russ Cox <rsc@golang.org>
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The documentation for quick.Value says that it "returns an arbitrary
value of the given type." In spite of this, nil values for pointers were
never generated, which seems more like an oversight than an intentional
choice.
The lack of nil values meant that testing recursive type like
type Node struct {
Next *Node
}
with testing/quick would lead to a stack overflow since the data
structure would never terminate.
This change may break tests that don't check for nil with pointers
returned from quick.Value. Two such instances were found in the standard
library, one of which was in the testing/quick package itself.
Fixes #8818.
Change-Id: Id390dcce649d12fbbaa801ce6f58f5defed77e60
Reviewed-on: https://go-review.googlesource.com/10821
Reviewed-by: Adam Langley <agl@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
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As noted in bug #10980, an empty PEM block is encoded as
-----BEGIN foo-----
-----END foo-----
However, Decode failed to process this.
RFC 1421 doesn't answer what the encoding of the empty block should be
because PEM messages always contain at least one header. However, PEM
these days is just the encoding format – nobody uses the rest of PEM any
longer.
Having the empty block not contain a newline seems most correct because
https://tools.ietf.org/html/rfc1421#section-9 clearly says that the
optional “pemtext” carries the leading new-line with it. So if omitted,
the new-line should be omitted too.
None the less, this changes makes encoding/pem permissive, accepting any
number of blank lines in an empty PEM block.
Fixes #10980
Change-Id: If36bdfbf991ee281eccd50b56ddc95f24c6debb2
Reviewed-on: https://go-review.googlesource.com/10516
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
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benchmark old MB/s new MB/s speedup
BenchmarkEncode 243.20 279.89 1.15x
benchmark old allocs new allocs delta
BenchmarkEncode 1370 4 -99.71%
Change-Id: I3920bcc04b6dd89efa5da89db5594d4434426d74
Reviewed-on: https://go-review.googlesource.com/1924
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Preparation was in CL 134570043.
This CL contains only the effect of 'hg mv src/pkg/* src'.
For more about the move, see golang.org/s/go14nopkg.
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