diff options
author | Quentin Dufour <quentin@deuxfleurs.fr> | 2021-11-19 19:54:49 +0100 |
---|---|---|
committer | Quentin Dufour <quentin@deuxfleurs.fr> | 2021-11-19 19:54:49 +0100 |
commit | 0ee29e31ddcc81f541de7459b0a5e40dfa552672 (patch) | |
tree | 859ff133f8c78bd034b0c2184cdad0ce9f38b065 /sftp/request-attrs.go | |
parent | 93631b4e3d5195d446504db1c4a2bc7468b3ef28 (diff) | |
download | bagage-0ee29e31ddcc81f541de7459b0a5e40dfa552672.tar.gz bagage-0ee29e31ddcc81f541de7459b0a5e40dfa552672.zip |
Working on SFTP
Diffstat (limited to 'sftp/request-attrs.go')
-rw-r--r-- | sftp/request-attrs.go | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/sftp/request-attrs.go b/sftp/request-attrs.go new file mode 100644 index 0000000..b5c95b4 --- /dev/null +++ b/sftp/request-attrs.go @@ -0,0 +1,63 @@ +package sftp + +// Methods on the Request object to make working with the Flags bitmasks and +// Attr(ibutes) byte blob easier. Use Pflags() when working with an Open/Write +// request and AttrFlags() and Attributes() when working with SetStat requests. +import "os" + +// FileOpenFlags defines Open and Write Flags. Correlate directly with with os.OpenFile flags +// (https://golang.org/pkg/os/#pkg-constants). +type FileOpenFlags struct { + Read, Write, Append, Creat, Trunc, Excl bool +} + +func newFileOpenFlags(flags uint32) FileOpenFlags { + return FileOpenFlags{ + Read: flags&sshFxfRead != 0, + Write: flags&sshFxfWrite != 0, + Append: flags&sshFxfAppend != 0, + Creat: flags&sshFxfCreat != 0, + Trunc: flags&sshFxfTrunc != 0, + Excl: flags&sshFxfExcl != 0, + } +} + +// Pflags converts the bitmap/uint32 from SFTP Open packet pflag values, +// into a FileOpenFlags struct with booleans set for flags set in bitmap. +func (r *Request) Pflags() FileOpenFlags { + return newFileOpenFlags(r.Flags) +} + +// FileAttrFlags that indicate whether SFTP file attributes were passed. When a flag is +// true the corresponding attribute should be available from the FileStat +// object returned by Attributes method. Used with SetStat. +type FileAttrFlags struct { + Size, UidGid, Permissions, Acmodtime bool +} + +func newFileAttrFlags(flags uint32) FileAttrFlags { + return FileAttrFlags{ + Size: (flags & sshFileXferAttrSize) != 0, + UidGid: (flags & sshFileXferAttrUIDGID) != 0, + Permissions: (flags & sshFileXferAttrPermissions) != 0, + Acmodtime: (flags & sshFileXferAttrACmodTime) != 0, + } +} + +// AttrFlags returns a FileAttrFlags boolean struct based on the +// bitmap/uint32 file attribute flags from the SFTP packaet. +func (r *Request) AttrFlags() FileAttrFlags { + return newFileAttrFlags(r.Flags) +} + +// FileMode returns the Mode SFTP file attributes wrapped as os.FileMode +func (a FileStat) FileMode() os.FileMode { + return os.FileMode(a.Mode) +} + +// Attributes parses file attributes byte blob and return them in a +// FileStat object. +func (r *Request) Attributes() *FileStat { + fs, _ := unmarshalFileStat(r.Flags, r.Attrs) + return fs +} |