Use strings to simplify the code.
This is a follow-up for the CL 586715.
Change-Id: I9e5470ec271e8af1ad4ddbb5f01f43a8a4879557
GitHub-Last-Rev: b95d617978
GitHub-Pull-Request: golang/go#68713
Reviewed-on: https://go-review.googlesource.com/c/go/+/602697
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Replace reflect.DeepEqual with slices.Equal/maps.Equal, which is
much faster.
Clean up some unnecessary helper functions.
Change-Id: I9b94bd43886302b9b327539ab065a435ce0d75d9
GitHub-Last-Rev: b9ca21f165
GitHub-Pull-Request: golang/go#67607
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Fixes#66810
Change-Id: I6a7848dce245ae14941d61d2f78abaf0dc5c1247
Reviewed-on: https://go-review.googlesource.com/c/go/+/597978
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Change-Id: I0c142eb18af7b03759041e894bbce0f365ea9d7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/588116
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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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When scanning for an end of central directory record,
treat an EOCDR signature with a record containing a truncated
comment as an error. Previously, we would skip over the invalid
record and look for another one. Other implementations do not
do this (they either consider this a hard error, or just ignore
the truncated comment). This parser misalignment allowed
presenting entirely different archive contents to Go programs
and other zip decoders.
Fixes#66869
Change-Id: I94e5cb028534bb5704588b8af27f1e22ea49c7c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/585397
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The comment contains a dead link to a OpenJDK bug ID 7073588
this change fixes the link.
Change-Id: Ib9b10362c707507e59bb6f340d52a0025f65e292
GitHub-Last-Rev: 37af15b947
GitHub-Pull-Request: golang/go#66669
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Change-Id: I1df0685c75fc1044ba46003a69ecc7dfc53bbc2b
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Make a copy of the argument File's FileHeader, and pass a pointer
to the copy to CreateRaw.
Passing the pointer directly causes the entire `File` to be referenced
by the receiver. The `File` includes a reference to the `ReaderAt`
underlying the `Reader`, so all its memory, which may be the entire
contents of the archive, is prevented from being garbage-collected.
Also, explain the issue in the doc comment for CreateRaw. We
cannot change its behavior because someone may depend on the
preserving the identity of its argument pointer.
For #65499.
Change-Id: Ieb4963a0ea30539d597547d3511accbd8c6b5c5a
Reviewed-on: https://go-review.googlesource.com/c/go/+/560238
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Change-Id: I813aa09f8a65936796469fa637d0f23004d26098
Reviewed-on: https://go-review.googlesource.com/c/go/+/534757
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Change-Id: I8787458f9ccd3b5cdcdda820d8a45deb4f77eade
GitHub-Last-Rev: be865d67ef
GitHub-Pull-Request: golang/go#63165
Reviewed-on: https://go-review.googlesource.com/c/go/+/530120
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This is a follow up of CL 528696.
Change-Id: I5b71eabedb12567c4b1b36f7182a3d2b0ed662a5
GitHub-Last-Rev: acaf3ac11c
GitHub-Pull-Request: golang/go#62713
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Run 'unconvert -safe -apply' (https://github.com/mdempsky/unconvert)
Change-Id: I24b7cd7d286cddce86431d8470d15c5f3f0d1106
GitHub-Last-Rev: 022e75384c
GitHub-Pull-Request: golang/go#62662
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When a filesystem with non-regular files is used
the resulting files inside the zip archive are empty.
In this case we can be explicit and return an error.
Fixes#61875
Change-Id: I1aeac544521002e0c4bad328e73f51852ad4eee3
GitHub-Last-Rev: 5e53dcfd7c
GitHub-Pull-Request: golang/go#61876
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This CL fixes the links to Microsoft documentation in the Go source
code. Some links were broken and some others were outdated.
Change-Id: I4c3bcd3aa3c07a31be1b7f94c25339dcc2e771e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/527556
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Change-Id: Iad902ec2a13b0c5c594c60ecac0b40f641574a1e
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Change-Id: I23e0005071fcbafeaecaa05f51712dd1de6eed01
Change-Id: I23e0005071fcbafeaecaa05f51712dd1de6eed01
GitHub-Last-Rev: 364d7c74fe
GitHub-Pull-Request: golang/go#61661
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The method AddFS can be used to add the contents of a fs.FS filesystem
to a zip archive.
This method walks the directory tree starting at the root of the filesystem
and adds each file to the archive.
Fixes#54898
Change-Id: I80511cbd91a1d7e09ee52d2d1b09fb5eed25f45f
GitHub-Last-Rev: 1e17f2e6ba
GitHub-Pull-Request: golang/go#61602
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The existing implementation allocates a new 4KB buffer each time it opens flate-encoded file in a zip archive. This commit allows the flate reader to reuse the buffer on call Reset instead of allocating a new one.
It is noticeable when a zip archive contains a huge amount of files, e.g. zip archive has 50_000 files, for each file 4KB buffer is allocated, so it is 200MB memory allocations. If files are read sequentially only one buffer is needed.
Fixes#59774
Change-Id: Ib16336b101ba58e8f0f30a45dc5fd4eeebc801a1
GitHub-Last-Rev: f3f395b2ad
GitHub-Pull-Request: golang/go#59775
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The new String methods use the new FormatFileInfo and
FormatDirEntry functions.
Fixes#54451
Change-Id: I414cdfc212ec3c316fb2734756d2117842a23631
Reviewed-on: https://go-review.googlesource.com/c/go/+/491175
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We added a check for incorrect baseOffset in CL 408734, but in doing so
we introduced a panic when directoryOffset overflowed a int64. The zip
spec uses uint64, but since io.SectionReader requires int64 we convert,
and possibly introduce an overflow. If offset < 0 && size-offset < 0,
SectionReader will panic when we attempt to read from it.
Since it's extremely unlikely we're ever going to process a zip file
larger than 1<<63-1 byte, just limit directory size and offset to the
max int64.
Change-Id: I1aaa755cf4da927a6e12ef59f97dfc83a3426d86
Reviewed-on: https://go-review.googlesource.com/c/go/+/488195
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zip.NewReader was recently improved to return ErrInsecurePath when
insecure entries are encountered.
This change adopts the same logic for the OpenReader interface as well.
Fixes#58641
Change-Id: I0d8be94d073cc14cf93a914dc250f85b19cec4ab
GitHub-Last-Rev: 68391dc515
GitHub-Pull-Request: golang/go#58658
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Fixes the misuse of "a" vs "an", according to English grammatical
expectations and using https://www.a-or-an.com/
Change-Id: I53ac724070e3ff3d33c304483fe72c023c7cda47
Reviewed-on: https://go-review.googlesource.com/c/go/+/480536
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Fixes revive linter receiver-naming warnings:
- receiver name f should be consistent with previous receiver name e for fileListEntry
- receiver name r should be consistent with previous receiver name z for Reader
- receiver name f should be consistent with previous receiver name h for FileHeader
Change-Id: Ibfa14b97f6ca7adc86e3a1df919c5bb5de9716dc
GitHub-Last-Rev: dd7315b09d
GitHub-Pull-Request: golang/go#58477
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In CL 408734 we introduced a fall back to base offset 0 if reading a
directory entry at the computed base offset failed. We have now found
a file in the wild for which the computed base offset is incorrect,
but happens to refer to a valid directory entry. In this CL, we change
the fallback such that if the first directory header relative to base
offset 0 is valid, we just use base offset 0.
Change-Id: Ia9ace20c1065d1f651035f16f7d91d741ab1dbf4
Reviewed-on: https://go-review.googlesource.com/c/go/+/461598
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Allow GODEBUG users to report how many times a setting
resulted in non-default behavior.
Record non-default-behaviors for all existing GODEBUGs.
Also rework tests to ensure that runtime is in sync with runtime/metrics.All,
and generate docs mechanically from metrics.All.
For #56986.
Change-Id: Iefa1213e2a5c3f19ea16cd53298c487952ef05a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/453618
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These are mentioned in the release notes but not the actual doc comments.
Nothing should exist only in release notes.
Change-Id: I8d10f25a2c9b2677231929ba3f393af9034b777b
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CL 452616 disables path security checks by default, enabling them
only when GODEBUG=tarinsecurepath=0 or GODEBUG=zipinsecurepath=0
is set. Remove now-obsolete documenation of the path checks.
For #55356
Change-Id: I4ae57534efe9e27368d5e67773a502dd0e56eff4
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CL 454475 switched from checking CompressedSize to UncompressedSize
when determining if we should consider an archive malformed because
it contains data and added a test for an example of this (a JAR). We
should also remove the hasDataDescriptor check, since that is basically
an alias for CompressedSize > 0. The test didn't catch this because we
didn't actually attempt to read from the returned reader.
Change-Id: Ibc4c1aa9c3a733f3ebf4a956d1e2f8f4900a29cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/455523
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End-of-line comments are not doc comments,
so Deprecated notes in them are not recognized
as deprecation notices. Rewrite the comments.
Change-Id: Idc4681924f9a7e9ead62f672ef8a763e70db1f0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/453616
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In CL 449955 we made reading of directories with associated file data
an error, since it is a "must not" in the zip specification. It turns
out that a number of implementations make the mistake of not setting
the correct compression method on directories (in particular the Java
jar tool does this when storing the META-INF directory). If the
compression method used is not 0 (stored) then the compressed size of
the directory can be > 0, despite the uncompressed size still being 0.
Since this mistake is not uncommon, we are forced to tolerate it. We
still fail if the recorded uncompressed size is > 0, which should be
a significantly harder mistake to make.
Change-Id: Ia732b10787f26ab937ac9cf9869ac3042efb8118
Reviewed-on: https://go-review.googlesource.com/c/go/+/454475
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This change is being made late in the release cycle.
Disable it by default. Insecure path checks may be enabled by setting
GODEBUG=tarinsecurepath=0 or GODEBUG=zipinsecurepath=0.
We can enable this by default in Go 1.21 after publicizing the change
more broadly and giving users a chance to adapt to the change.
For #55356.
Change-Id: I549298b3c85d6c8c7fd607c41de1073083f79b1d
Reviewed-on: https://go-review.googlesource.com/c/go/+/452616
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Return a distinguishable error when reading an archive file
with a path that is:
- absolute
- escapes the current directory (../a)
- on Windows, a reserved name such as NUL
Users may ignore this error and proceed if they do not need name
sanitization or intend to perform it themselves.
Fixes#25849Fixes#55356
Change-Id: Ieefa163f00384bc285ab329ea21a6561d39d8096
Reviewed-on: https://go-review.googlesource.com/c/go/+/449937
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Fixes#54801
Change-Id: I3d03516792975ddb09835b2621c57e12e7cbad35
GitHub-Last-Rev: 4faa7e14dc
GitHub-Pull-Request: golang/go#56714
Reviewed-on: https://go-review.googlesource.com/c/go/+/449955
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Reviewed-by: Joedian Reid <joedian@golang.org>
Change-Id: I2854b5e7b48c4c189df84cb7281b7b7de780eebd
Reviewed-on: https://go-review.googlesource.com/c/go/+/435938
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Change-Id: I07e022ffc022bca6aa12165871e723db3ed83141
Reviewed-on: https://go-review.googlesource.com/c/go/+/428255
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A clean up for CL 408734, suggested by Joe Tsai.
Change-Id: Ida9db0b8d31785d5640938c286c9c6c82c27f457
Reviewed-on: https://go-review.googlesource.com/c/go/+/410154
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This permits us to read files that earlier Go releases could read.
It is also compatible with other zip programs.
Change-Id: I7e2999f1073c4db5ba3f51f92681e0b149d55b3e
Reviewed-on: https://go-review.googlesource.com/c/go/+/408734
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Excluding vendor and testdata.
CL 384268 already reformatted most, but these slipped past.
The struct in the doc comment in debug/dwarf/type.go
was fixed up by hand to indent the first and last lines as well.
For #51082.
Change-Id: Iad020f83aafd671ff58238fe491907e85923d0c7
Reviewed-on: https://go-review.googlesource.com/c/go/+/407137
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Fixes#50390
Change-Id: I92787cdb3fa198ff88dcaadeccfcb49a3a6a88cf
Reviewed-on: https://go-review.googlesource.com/c/go/+/374954
Reviewed-by: Heschi Kreinick <heschi@google.com>
Reviewed-by: Joseph Tsai <joetsai@digital-static.net>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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A Java jar file is a zip file, but it can have a prefix that is a bash
script that unpacks the zip file. Most zip programs ignore such prefixes.
This CL changes the archive/zip package to do the same.
Fixes#10464Fixes#51337
Change-Id: I976e9c64684644317bd21077bc5b4a2baf626ee6
Reviewed-on: https://go-review.googlesource.com/c/go/+/387976
Run-TryBot: Ian Lance Taylor <iant@google.com>
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Found via staticcheck. Unused as of CL 357489.
Change-Id: I3aa409994ba4388912ac7e7809168529a5b6e31c
Reviewed-on: https://go-review.googlesource.com/c/go/+/403814
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The zip reader checks that the uncompressed file size is valid
after all compressed files read until EOF.
However in between reading each file, there could have already
been an overflow where nread > UncompressedSize64 hence this
change will now return ErrFormat in such situations.
Fixes#49791
Change-Id: If3584a57d173de6a97bf35c07d2a99ff6972f820
Reviewed-on: https://go-review.googlesource.com/c/go/+/366854
Trust: mzh <mzh@golangcn.org>
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A future change to gofmt will rewrite
// Doc comment.
//
func f()
to
// Doc comment.
func f()
Apply that change preemptively to all doc comments.
For #51082.
Change-Id: I4023e16cfb0729b64a8590f071cd92f17343081d
Reviewed-on: https://go-review.googlesource.com/c/go/+/384259
Trust: Russ Cox <rsc@golang.org>
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Adds simple fuzz targets to archive/tar, archive/zip, compress/gzip,
encoding/json, image/jpeg, image/gif, and image/png.
Second attempt, this time we don't use the archives in testdata when
fuzzing archive/tar, since those are rather memory intensive, and
were crashing a number of builders.
Change-Id: I4828d64fa4763c0d8c980392a6578e4dfd956e13
Reviewed-on: https://go-review.googlesource.com/c/go/+/378174
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This reverts CL 352109.
Reason for revert: causing OOM failures on several builders, and may cause OOMs for end users with small machines as well.
Change-Id: I58308d09919969d5a6512ee5cee6aa5c4af6769b
Reviewed-on: https://go-review.googlesource.com/c/go/+/377934
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And then revert the bootstrap cmd directories and certain testdata.
And adjust tests as needed.
Not reverting the changes in std that are bootstrapped,
because some of those changes would appear in API docs,
and we want to use any consistently.
Instead, rewrite 'any' to 'interface{}' in cmd/dist for those directories
when preparing the bootstrap copy.
A few files changed as a result of running gofmt -w
not because of interface{} -> any but because they
hadn't been updated for the new //go:build lines.
Fixes#49884.
Change-Id: Ie8045cba995f65bd79c694ec77a1b3d1fe01bb09
Reviewed-on: https://go-review.googlesource.com/c/go/+/368254
Trust: Russ Cox <rsc@golang.org>
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Go 1.17 introduced an unnecessary change to when a zip's data descriptor
is read for file entries, how it is parsed and how the crc32 field is
used.
Before Go 1.17, the data descriptor was read immediately after a file
entry's content. This continuous read is a pattern existing applications
have come to rely upon (for example, where reads at specific offsets
might be translated to HTTP range requests).
In Go 1.17, all data descriptors are immediately read upon opening the
file. This results in scattered and non-continuous reads of the archive,
and depending on the underlying reader, might have severe performance
implications. In addition, an additional object is now initialized for
each entry, but is mostly redundant.
Previously, the crc32 field in the data descriptor would return an error
if it did not match the central directory's entry. This check has
seemingly been unintentionally removed. If the central directory crc32
is invalid and a data descriptor is present, no error is returned.
This change reverts to the previous handling of data descriptors, before
CL 312310.
Fixes#48374Fixes#49089
Change-Id: I5df2878c4fcc9e500064e7175f3ab9727c82f100
Reviewed-on: https://go-review.googlesource.com/c/go/+/357489
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
apocelipes
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Roland Shoemaker
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