[][src]Struct sequoia_openpgp::serialize::stream::LiteralWriter

pub struct LiteralWriter<'a> { /* fields omitted */ }

Writes a literal data packet.

Literal data, i.e. the payload or plaintext, must be wrapped in a literal data packet to be transported over OpenPGP (see Section 5.9 of RFC 4880). The body will be written using partial length encoding, or, if the body is short, using full length encoding.

Note on metadata

A literal data packet can communicate some metadata: a hint as to what kind of data is transported, the original file name, and a timestamp. Note that this metadata will not be authenticated by signatures (but will be authenticated by a SEIP/MDC container), and are therefore unreliable and should not be trusted.

Therefore, it is good practice not to set this metadata when creating a literal data packet, and not to interpret it when consuming one.

Implementations

impl<'a> LiteralWriter<'a>[src]

pub fn new(inner: Message<'a>) -> Self[src]

Creates a new literal writer.

Examples

use std::io::Write;
use sequoia_openpgp as openpgp;
use openpgp::serialize::stream::{Message, LiteralWriter};

let mut sink = vec![];
{
    let message = Message::new(&mut sink);
    let mut message = LiteralWriter::new(message)
        // Customize the `LiteralWriter` here.
        .build()?;
    message.write_all(b"Hello world.")?;
    message.finalize()?;
}
assert_eq!(b"\xcb\x12b\x00\x00\x00\x00\x00Hello world.",
           sink.as_slice());

pub fn format(self, format: DataFormat) -> Self[src]

Sets the data format.

Examples

use std::io::Write;
use sequoia_openpgp as openpgp;
use openpgp::types::DataFormat;
use openpgp::serialize::stream::{Message, LiteralWriter};

let mut sink = vec![];
{
    let message = Message::new(&mut sink);
    let mut message = LiteralWriter::new(message)
        .format(DataFormat::Text)
        .build()?;
    message.write_all(b"Hello world.")?;
    message.finalize()?;
}
assert_eq!(b"\xcb\x12t\x00\x00\x00\x00\x00Hello world.",
           sink.as_slice());

pub fn filename<B: AsRef<[u8]>>(self, filename: B) -> Result<Self>[src]

Sets the filename.

The standard does not specify the encoding. Filenames must not be longer than 255 bytes. Returns an error if the given name is longer than that.

Examples

use std::io::Write;
use sequoia_openpgp as openpgp;
use openpgp::serialize::stream::{Message, LiteralWriter};

let mut sink = vec![];
{
    let message = Message::new(&mut sink);
    let mut message = LiteralWriter::new(message)
        .filename("foobar")?
        .build()?;
    message.write_all(b"Hello world.")?;
    message.finalize()?;
}
assert_eq!(b"\xcb\x18b\x06foobar\x00\x00\x00\x00Hello world.",
           sink.as_slice());

pub fn date<T: Into<SystemTime>>(self, timestamp: T) -> Result<Self>[src]

Sets the date.

This date may be the modification date or the creation date. Returns an error if the given date is not representable by OpenPGP.

Examples

use std::io::Write;
use sequoia_openpgp as openpgp;
use openpgp::types::Timestamp;
use openpgp::serialize::stream::{Message, LiteralWriter};

let mut sink = vec![];
{
    let message = Message::new(&mut sink);
    let mut message = LiteralWriter::new(message)
        .date(Timestamp::from(1585925313))?
        .build()?;
    message.write_all(b"Hello world.")?;
    message.finalize()?;
}
assert_eq!(b"\xcb\x12b\x00\x5e\x87\x4c\xc1Hello world.",
           sink.as_slice());

pub fn build(self) -> Result<Message<'a>>[src]

Builds the literal writer, returning the writer stack.

The next step is to write the payload to the writer stack.

Examples

use std::io::Write;
use sequoia_openpgp as openpgp;
use openpgp::serialize::stream::{Message, LiteralWriter};

let mut sink = vec![];
{
    let message = Message::new(&mut sink);
    let mut message = LiteralWriter::new(message)
        // Customize the `LiteralWriter` here.
        .build()?;
    message.write_all(b"Hello world.")?;
    message.finalize()?;
}
assert_eq!(b"\xcb\x12b\x00\x00\x00\x00\x00Hello world.",
           sink.as_slice());

Trait Implementations

impl<'a> Debug for LiteralWriter<'a>[src]

impl<'a> Write for LiteralWriter<'a>[src]

Auto Trait Implementations

impl<'a> !RefUnwindSafe for LiteralWriter<'a>

impl<'a> !Send for LiteralWriter<'a>

impl<'a> !Sync for LiteralWriter<'a>

impl<'a> Unpin for LiteralWriter<'a>

impl<'a> !UnwindSafe for LiteralWriter<'a>

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.