tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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profile.rs (3737B)

      1 /* This Source Code Form is subject to the terms of the Mozilla Public
      2 * License, v. 2.0. If a copy of the MPL was not distributed with this
      3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      4 
      5 use crate::preferences::{Pref, Preferences};
      6 use crate::prefreader::{parse, serialize, PrefReaderError};
      7 use std::collections::btree_map::Iter;
      8 use std::fs::File;
      9 use std::io::prelude::*;
     10 use std::io::Result as IoResult;
     11 use std::path::{Path, PathBuf};
     12 use tempfile::{Builder, TempDir};
     13 
     14 #[derive(Debug)]
     15 pub struct Profile {
     16    pub path: PathBuf,
     17    pub temp_dir: Option<TempDir>,
     18    prefs: Option<PrefFile>,
     19    user_prefs: Option<PrefFile>,
     20 }
     21 
     22 impl PartialEq for Profile {
     23    fn eq(&self, other: &Profile) -> bool {
     24        self.path == other.path
     25    }
     26 }
     27 
     28 impl Profile {
     29    pub fn new(temp_root: Option<&Path>) -> IoResult<Profile> {
     30        let mut dir_builder = Builder::new();
     31        dir_builder.prefix("rust_mozprofile");
     32        let dir = if let Some(temp_root) = temp_root {
     33            dir_builder.tempdir_in(temp_root)
     34        } else {
     35            dir_builder.tempdir()
     36        }?;
     37        let path = dir.path().to_path_buf();
     38        let temp_dir = Some(dir);
     39        Ok(Profile {
     40            path,
     41            temp_dir,
     42            prefs: None,
     43            user_prefs: None,
     44        })
     45    }
     46 
     47    pub fn new_from_path(p: &Path) -> IoResult<Profile> {
     48        let path = p.to_path_buf();
     49        let temp_dir = None;
     50        Ok(Profile {
     51            path,
     52            temp_dir,
     53            prefs: None,
     54            user_prefs: None,
     55        })
     56    }
     57 
     58    pub fn prefs(&mut self) -> Result<&mut PrefFile, PrefReaderError> {
     59        if self.prefs.is_none() {
     60            let mut pref_path = PathBuf::from(&self.path);
     61            pref_path.push("prefs.js");
     62            self.prefs = Some(PrefFile::new(pref_path)?)
     63        };
     64        // This error handling doesn't make much sense
     65        Ok(self.prefs.as_mut().unwrap())
     66    }
     67 
     68    pub fn user_prefs(&mut self) -> Result<&mut PrefFile, PrefReaderError> {
     69        if self.user_prefs.is_none() {
     70            let mut pref_path = PathBuf::from(&self.path);
     71            pref_path.push("user.js");
     72            self.user_prefs = Some(PrefFile::new(pref_path)?)
     73        };
     74        // This error handling doesn't make much sense
     75        Ok(self.user_prefs.as_mut().unwrap())
     76    }
     77 }
     78 
     79 #[derive(Debug)]
     80 pub struct PrefFile {
     81    pub path: PathBuf,
     82    pub prefs: Preferences,
     83 }
     84 
     85 impl PrefFile {
     86    pub fn new(path: PathBuf) -> Result<PrefFile, PrefReaderError> {
     87        let prefs = if !path.exists() {
     88            Preferences::new()
     89        } else {
     90            let mut f = File::open(&path)?;
     91            let mut buf = String::with_capacity(4096);
     92            f.read_to_string(&mut buf)?;
     93            parse(buf.as_bytes())?
     94        };
     95 
     96        Ok(PrefFile { path, prefs })
     97    }
     98 
     99    pub fn write(&self) -> IoResult<()> {
    100        let mut f = File::create(&self.path)?;
    101        serialize(&self.prefs, &mut f)
    102    }
    103 
    104    pub fn insert_slice<K>(&mut self, preferences: &[(K, Pref)])
    105    where
    106        K: Into<String> + Clone,
    107    {
    108        for (name, value) in preferences.iter() {
    109            self.insert((*name).clone(), (*value).clone());
    110        }
    111    }
    112 
    113    pub fn insert<K>(&mut self, key: K, value: Pref)
    114    where
    115        K: Into<String>,
    116    {
    117        self.prefs.insert(key.into(), value);
    118    }
    119 
    120    pub fn remove(&mut self, key: &str) -> Option<Pref> {
    121        self.prefs.remove(key)
    122    }
    123 
    124    pub fn get(&mut self, key: &str) -> Option<&Pref> {
    125        self.prefs.get(key)
    126    }
    127 
    128    pub fn contains_key(&self, key: &str) -> bool {
    129        self.prefs.contains_key(key)
    130    }
    131 
    132    pub fn iter(&self) -> Iter<'_, String, Pref> {
    133        self.prefs.iter()
    134    }
    135 }