v2api/reverse: start fusefrontend_reverse v2 API implementation
This commit is contained in:
parent
13dc7657ba
commit
18b3bdb158
61
internal/fusefrontend_reverse/excluder.go
Normal file
61
internal/fusefrontend_reverse/excluder.go
Normal file
@ -0,0 +1,61 @@
|
|||||||
|
package fusefrontend_reverse
|
||||||
|
|
||||||
|
import (
|
||||||
|
"io/ioutil"
|
||||||
|
"os"
|
||||||
|
"strings"
|
||||||
|
|
||||||
|
"github.com/rfjakob/gocryptfs/internal/exitcodes"
|
||||||
|
"github.com/rfjakob/gocryptfs/internal/fusefrontend"
|
||||||
|
"github.com/rfjakob/gocryptfs/internal/tlog"
|
||||||
|
|
||||||
|
"github.com/sabhiram/go-gitignore"
|
||||||
|
)
|
||||||
|
|
||||||
|
// prepareExcluder creates an object to check if paths are excluded
|
||||||
|
// based on the patterns specified in the command line.
|
||||||
|
func prepareExcluder(args fusefrontend.Args) *ignore.GitIgnore {
|
||||||
|
if len(args.Exclude) > 0 || len(args.ExcludeWildcard) > 0 || len(args.ExcludeFrom) > 0 {
|
||||||
|
excluder, err := ignore.CompileIgnoreLines(getExclusionPatterns(args)...)
|
||||||
|
if err != nil {
|
||||||
|
tlog.Fatal.Printf("Error compiling exclusion rules: %q", err)
|
||||||
|
os.Exit(exitcodes.ExcludeError)
|
||||||
|
}
|
||||||
|
return excluder
|
||||||
|
}
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
// getExclusionPatters prepares a list of patterns to be excluded.
|
||||||
|
// Patterns passed in the -exclude command line option are prefixed
|
||||||
|
// with a leading '/' to preserve backwards compatibility (before
|
||||||
|
// wildcard matching was implemented, exclusions always were matched
|
||||||
|
// against the full path).
|
||||||
|
func getExclusionPatterns(args fusefrontend.Args) []string {
|
||||||
|
patterns := make([]string, len(args.Exclude)+len(args.ExcludeWildcard))
|
||||||
|
// add -exclude
|
||||||
|
for i, p := range args.Exclude {
|
||||||
|
patterns[i] = "/" + p
|
||||||
|
}
|
||||||
|
// add -exclude-wildcard
|
||||||
|
copy(patterns[len(args.Exclude):], args.ExcludeWildcard)
|
||||||
|
// add -exclude-from
|
||||||
|
for _, file := range args.ExcludeFrom {
|
||||||
|
lines, err := getLines(file)
|
||||||
|
if err != nil {
|
||||||
|
tlog.Fatal.Printf("Error reading exclusion patterns: %q", err)
|
||||||
|
os.Exit(exitcodes.ExcludeError)
|
||||||
|
}
|
||||||
|
patterns = append(patterns, lines...)
|
||||||
|
}
|
||||||
|
return patterns
|
||||||
|
}
|
||||||
|
|
||||||
|
// getLines reads a file and splits it into lines
|
||||||
|
func getLines(file string) ([]string, error) {
|
||||||
|
buffer, err := ioutil.ReadFile(file)
|
||||||
|
if err != nil {
|
||||||
|
return nil, err
|
||||||
|
}
|
||||||
|
return strings.Split(string(buffer), "\n"), nil
|
||||||
|
}
|
11
internal/fusefrontend_reverse/node.go
Normal file
11
internal/fusefrontend_reverse/node.go
Normal file
@ -0,0 +1,11 @@
|
|||||||
|
package fusefrontend_reverse
|
||||||
|
|
||||||
|
import (
|
||||||
|
"github.com/hanwen/go-fuse/v2/fs"
|
||||||
|
)
|
||||||
|
|
||||||
|
// Node is a file or directory in the filesystem tree
|
||||||
|
// in a `gocryptfs -reverse` mount.
|
||||||
|
type Node struct {
|
||||||
|
fs.Inode
|
||||||
|
}
|
39
internal/fusefrontend_reverse/root_node.go
Normal file
39
internal/fusefrontend_reverse/root_node.go
Normal file
@ -0,0 +1,39 @@
|
|||||||
|
package fusefrontend_reverse
|
||||||
|
|
||||||
|
import (
|
||||||
|
"github.com/rfjakob/gocryptfs/internal/contentenc"
|
||||||
|
"github.com/rfjakob/gocryptfs/internal/fusefrontend"
|
||||||
|
"github.com/rfjakob/gocryptfs/internal/inomap"
|
||||||
|
"github.com/rfjakob/gocryptfs/internal/nametransform"
|
||||||
|
|
||||||
|
"github.com/sabhiram/go-gitignore"
|
||||||
|
)
|
||||||
|
|
||||||
|
// RootNode is the root directory in a `gocryptfs -reverse` mount
|
||||||
|
type RootNode struct {
|
||||||
|
Node
|
||||||
|
// Stores configuration arguments
|
||||||
|
args fusefrontend.Args
|
||||||
|
// Filename encryption helper
|
||||||
|
nameTransform nametransform.NameTransformer
|
||||||
|
// Content encryption helper
|
||||||
|
contentEnc *contentenc.ContentEnc
|
||||||
|
// Tests whether a path is excluded (hiden) from the user. Used by -exclude.
|
||||||
|
excluder ignore.IgnoreParser
|
||||||
|
// inoMap translates inode numbers from different devices to unique inode
|
||||||
|
// numbers.
|
||||||
|
inoMap *inomap.InoMap
|
||||||
|
}
|
||||||
|
|
||||||
|
// NewRootNode returns an encrypted FUSE overlay filesystem.
|
||||||
|
// In this case (reverse mode) the backing directory is plain-text and
|
||||||
|
// ReverseFS provides an encrypted view.
|
||||||
|
func NewRootNode(args fusefrontend.Args, c *contentenc.ContentEnc, n nametransform.NameTransformer) *RootNode {
|
||||||
|
return &RootNode{
|
||||||
|
args: args,
|
||||||
|
nameTransform: n,
|
||||||
|
contentEnc: c,
|
||||||
|
inoMap: inomap.New(),
|
||||||
|
excluder: prepareExcluder(args),
|
||||||
|
}
|
||||||
|
}
|
Loading…
Reference in New Issue
Block a user