* refactor: remove per-file decompression size limit
Remove MaxDecompressedFileSize as it's no longer necessary after
migrating to a maintained JSON schema library (santhosh-tekuri/jsonschema/v6).
The original limit was added to protect against vulnerabilities in an
unmaintained library.
The total decompressed chart size limit (MaxDecompressedChartSize) remains
to protect against other attack vectors.
Partially resolves#30738
Related:
- https://github.com/helm/helm/pull/30743
Signed-off-by: Benoit Tigeot <benoit.tigeot@lifen.fr>
* fix: deprecate MaxDecompressedFileSize instead of removing
As Matt suggested we should keep the variable until v5 as it can be used
because it is public.
Related:
- https://github.com/helm/helm/pull/31748#discussion_r2738518696
Signed-off-by: Benoit Tigeot <benoit.tigeot@lifen.fr>
* fix: enforce aggregate size budget on directory loading
Directory-based chart loading (`LoadDir`) used unbounded `os.ReadFile`
calls with no total size check. Archive loading already enforces
`MaxDecompressedChartSize` via a remaining-byte budget but directory
loading did not, leaving local charts and `file://` dependencies as
an unbounded memory path.
Add `ReadFileWithBudget` in the archive package and use it in both
v2 and v3 directory loaders so they track the same aggregate budget.
Ref: https://github.com/helm/helm/pull/31748#issuecomment-4138927643
Signed-off-by: Benoit Tigeot <benoit.tigeot@lifen.fr>
* fix: cap directory budget reads with LimitReader
Use `os.Open` + `io.LimitReader` instead of `os.ReadFile` in
`ReadFileWithBudget` so a file that grows between stat and read
cannot allocate unbounded memory.
Also fix `MaxDecompressedFileSize` doc comment to reflect it is
unused/deprecated, add nil guard on remaining, and check
`os.Stat` errors in tests.
Signed-off-by: Benoit Tigeot <benoit.tigeot@lifen.fr>
* test: add v3 directory loader budget test
Mirror the v2 `TestLoadDirExceedsBudget` test for the v3 loader
to prevent budget enforcement regressions in either path.
Signed-off-by: Benoit Tigeot <benoit.tigeot@lifen.fr>
* refactor(loader): make read budget configurable
Follow recommendations from https://github.com/helm/helm/pull/31748#discussion_r3058581419
Signed-off-by: Benoit Tigeot <benoit.tigeot@lifen.fr>
* fix(loader): export BudgetedReader for cross-package use
Signed-off-by: Benoit Tigeot <benoit.tigeot@lifen.fr>
* fix(loader): rename max param to avoid shadowing built-in
Signed-off-by: Benoit Tigeot <benoit.tigeot@lifen.fr>
---------
Signed-off-by: Benoit Tigeot <benoit.tigeot@lifen.fr>
YAMLReader can return EOF without yielding the last line when that line
has no trailing newline and its length is a multiple of bufio's default
buffer. Read the file fully and ensure a trailing newline before parsing
so compact JSON values files are not silently ignored.
Fixes#32506
Signed-off-by: Dean Chen <862469039@qq.com>
In GoLang, using the == operator to check for a certain error will not
unwrap the error chain, and therefore may hide the problem.
Signed-off-by: Mads Jensen <atombrella@users.noreply.github.com>
Building the same chart into an archive multiple times will have
the same sha256 hash.
Perviously, the time in the headers for a file was time.Now() which
changed each time. The time is now collected from the operating
system when the file is loaded and this time is used.
Fixes: #3612
Signed-off-by: Matt Farina <matt.farina@suse.com>
This change is about handling the interfaces to public functions for
different chart apiVersions. The internals are still focused on v2.
This enables v3 to be layered in layer.
Signed-off-by: Matt Farina <matt.farina@suse.com>
Linting is specific to the chart versions. A v2 and v3 chart will
lint differently.
To accomplish this, packages like engine need to be able to handle
different chart versions. This was accomplished by some changes:
1. The introduction of a Charter interface for charts
2. The ChartAccessor which is able to accept a chart and then
provide access to its data via an interface. There is an
interface, factory, and implementation for each version of
chart.
3. Common packages were moved to a common and util packages.
Due to some package loops, there are 2 packages which may
get some consolidation in the future.
The new interfaces provide the foundation to move the actions
and cmd packages to be able to handle multiple apiVersions of
charts.
Signed-off-by: Matt Farina <matt.farina@suse.com>
This change moves the code, updates the import locations, and
adds a doc.go file to document what the v2 package is for.
This is part of HIP 20 for v3 charts
Signed-off-by: Matt Farina <matt.farina@suse.com>
Benoit Tigeot
Dean Chen
Matthieu MOREL
Terry Howe
George Jenkins
Mads Jensen
Matt Farina