ZacharyZhang-NY
b7fca0146d
ElyDoc, ElyTable, ElyShow (LibreOfficeKit), ElyPDF (MuPDF), ElyTree (Git), ElyMark (Milkdown and CodeMirror in CEF). ElyMail and ElyAgent follow.
41 lines
1.5 KiB
Rust
41 lines
1.5 KiB
Rust
//! Permissions, owner access and protected copies (PDF-11).
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use std::{io, path::Path};
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use ely_ipc::Unpack;
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use crate::client::{Doc, Worker};
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use crate::proto::tag;
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/// A protected copy's passwords and what it allows.
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#[derive(Clone, Debug, PartialEq, Eq)]
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pub struct Lock {
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/// Empty opens without asking.
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pub user: String,
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pub owner: String,
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/// `proto::may` bits.
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pub allow: u32,
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}
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impl Worker {
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/// `proto::may` bits for `doc` now.
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pub fn permissions(&mut self, doc: Doc) -> io::Result<u32> {
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let reply = self.request(tag::PERMISSIONS, &self.whole(&doc)?.bytes())?;
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Ok(Unpack::new(&reply).u64()? as u32)
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}
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/// Tries an owner password; false keeps the old access.
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pub fn owner(&mut self, doc: Doc, password: &str) -> io::Result<bool> {
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let reply = self.request(tag::OWNER, &self.whole(&doc)?.str(password).bytes())?;
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Ok(Unpack::new(&reply).u64()? != 0)
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}
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/// Writes `out` with `lock`, or with no protection.
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pub fn protect(&mut self, doc: Doc, out: &Path, lock: Option<&Lock>) -> io::Result<()> {
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let out = out.to_str().ok_or_else(|| io::Error::other("a path that is not UTF-8"))?;
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let (user, owner, allow) = lock.map_or(("", "", 0), |lock| (lock.user.as_str(), lock.owner.as_str(), lock.allow));
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let ask = self.whole(&doc)?.str(out).u64(u64::from(lock.is_some())).str(user).str(owner).u64(u64::from(allow));
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self.request(tag::PROTECT, &ask.bytes()).map(|_| ())
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}
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}
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