8464474e21
This adds `gojs.WithOSUser` which passes through current user IDs so that GOOS=js compiled wasm can read them. This also adds support for reading back the uid and gid on files. In summary, this passes `os.TestChown` except on windows where it will not work due to lack of support. Signed-off-by: Adrian Cole <adrian@tetrate.io>
72 lines
1.4 KiB
Go
72 lines
1.4 KiB
Go
// Package config exists to avoid dependency cycles when keeping most of gojs
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// code internal.
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package config
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import (
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"fmt"
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"net/http"
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"os"
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"path/filepath"
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"runtime"
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"syscall"
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"github.com/tetratelabs/wazero/internal/platform"
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)
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type Config struct {
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OsWorkdir bool
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OsUser bool
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Uid, Gid, Euid int
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Groups []int
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// Workdir is the actual working directory value.
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Workdir string
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Umask uint32
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Rt http.RoundTripper
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}
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func NewConfig() *Config {
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return &Config{
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OsWorkdir: false,
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OsUser: false,
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Uid: 0,
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Gid: 0,
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Euid: 0,
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Groups: []int{0},
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Workdir: "/",
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Umask: uint32(0o0022),
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Rt: nil,
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}
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}
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func (c *Config) Clone() *Config {
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ret := *c // copy except maps which share a ref
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return &ret
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}
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func (c *Config) Init() error {
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if c.OsWorkdir {
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workdir, err := os.Getwd()
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if err != nil {
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return err
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}
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// Ensure if used on windows, the input path is translated to a POSIX one.
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workdir = platform.ToPosixPath(workdir)
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// Strip the volume of the path, for example C:\
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c.Workdir = workdir[len(filepath.VolumeName(workdir)):]
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}
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// Windows does not support any of these properties
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if c.OsUser && runtime.GOOS != "windows" {
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c.Uid = syscall.Getuid()
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c.Gid = syscall.Getgid()
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c.Euid = syscall.Geteuid()
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var err error
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if c.Groups, err = syscall.Getgroups(); err != nil {
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return fmt.Errorf("couldn't read groups: %w", err)
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}
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}
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return nil
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}
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