imag/lib/domain/libimagcontact/src/store.rs

120 lines
3.9 KiB
Rust

//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2018 Matthias Beyer <mail@beyermatthias.de> and contributors
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; version
// 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
use std::path::PathBuf;
use toml::Value;
use toml::to_string as toml_to_string;
use toml::from_str as toml_from_str;
use toml_query::insert::TomlValueInsertExt;
use vobject::vcard::Vcard;
use libimagstore::storeid::IntoStoreId;
use libimagstore::storeid::StoreId;
use libimagstore::store::Store;
use libimagstore::store::FileLockEntry;
use libimagstore::storeid::StoreIdIterator;
use libimagentryutil::isa::Is;
use contact::IsContact;
use deser::DeserVcard;
use module_path::ModuleEntryPath;
use error::ContactError as CE;
use error::ContactErrorKind as CEK;
use error::Result;
use util;
pub trait ContactStore<'a> {
// creating
fn create_from_path(&'a self, p: &PathBuf) -> Result<FileLockEntry<'a>>;
fn retrieve_from_path(&'a self, p: &PathBuf) -> Result<FileLockEntry<'a>>;
fn create_from_buf(&'a self, buf: &str) -> Result<FileLockEntry<'a>>;
fn retrieve_from_buf(&'a self, buf: &str) -> Result<FileLockEntry<'a>>;
// getting
fn all_contacts(&'a self) -> Result<StoreIdIterator>;
}
/// The extension for the Store to work with contacts
impl<'a> ContactStore<'a> for Store {
fn create_from_path(&'a self, p: &PathBuf) -> Result<FileLockEntry<'a>> {
util::read_to_string(p).and_then(|buf| self.create_from_buf(&buf))
}
fn retrieve_from_path(&'a self, p: &PathBuf) -> Result<FileLockEntry<'a>> {
util::read_to_string(p).and_then(|buf| self.retrieve_from_buf(&buf))
}
/// Create contact ref from buffer
fn create_from_buf(&'a self, buf: &str) -> Result<FileLockEntry<'a>> {
let (sid, value) = prepare_fetching_from_store(buf)?;
postprocess_fetched_entry(self.create(sid)?, value)
}
fn retrieve_from_buf(&'a self, buf: &str) -> Result<FileLockEntry<'a>> {
let (sid, value) = prepare_fetching_from_store(buf)?;
postprocess_fetched_entry(self.retrieve(sid)?, value)
}
fn all_contacts(&'a self) -> Result<StoreIdIterator> {
let iter = self
.entries()?
.without_store()
.filter(|id| match *id {
Ok(ref id) => id.is_in_collection(&["contact"]),
Err(_) => true,
});
Ok(StoreIdIterator::new(Box::new(iter)))
}
}
/// Prepare the fetching from the store.
///
/// That means calculating the StoreId and the Value from the vcard data
fn prepare_fetching_from_store(buf: &str) -> Result<(StoreId, Value)> {
let vcard = Vcard::build(&buf)?;
debug!("Parsed: {:?}", vcard);
let uid = vcard.uid().ok_or_else(|| CE::from_kind(CEK::UidMissing(buf.to_string())))?;
let value = { // dirty ugly hack
let serialized = DeserVcard::from(vcard);
let serialized = toml_to_string(&serialized)?;
toml_from_str::<Value>(&serialized)?
};
let sid = ModuleEntryPath::new(uid.raw()).into_storeid()?;
Ok((sid, value))
}
/// Postprocess the entry just fetched from the store
fn postprocess_fetched_entry<'a>(mut entry: FileLockEntry<'a>, value: Value) -> Result<FileLockEntry<'a>> {
entry.set_isflag::<IsContact>()?;
entry.get_header_mut().insert("contact.data", value)?;
Ok(entry)
}