Matthias Beyer
c115215fa4
This merge solved a _LOT_ of conflicts and was a rather complicated one, as parts of the conflict-resolution involved rewriting of half the stuff. This merge commit fixes all the things so a `cargo check --all` succeeds, but I did not yet check whether tests run without failure.
143 lines
4.6 KiB
Rust
143 lines
4.6 KiB
Rust
//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015, 2016 Matthias Beyer <mail@beyermatthias.de> and contributors
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; version
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// 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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use std::path::Path;
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use std::path::PathBuf;
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use std::fs::File;
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use std::io::Read;
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use libimagstore::store::Store;
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use libimagstore::store::FileLockEntry;
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use libimagentryref::reference::Ref;
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use libimagentryref::flags::RefFlags;
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use libimagentryref::refstore::RefStore;
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use email::MimeMessage;
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use email::results::ParsingResult as EmailParsingResult;
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use hasher::MailHasher;
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use error::Result;
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use error::{ResultExt, MailErrorKind as MEK};
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struct Buffer(String);
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impl Buffer {
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pub fn parsed(&self) -> EmailParsingResult<MimeMessage> {
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MimeMessage::parse(&self.0)
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}
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}
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impl From<String> for Buffer {
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fn from(data: String) -> Buffer {
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Buffer(data)
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}
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}
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pub struct Mail<'a>(FileLockEntry<'a>, Buffer);
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impl<'a> Mail<'a> {
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/// Imports a mail from the Path passed
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pub fn import_from_path<P: AsRef<Path>>(store: &Store, p: P) -> Result<Mail> {
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debug!("Importing Mail from path");
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let h = MailHasher::new();
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let f = RefFlags::default().with_content_hashing(true).with_permission_tracking(false);
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let p = PathBuf::from(p.as_ref());
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store.create_with_hasher(p, f, h)
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.chain_err(|| MEK::RefCreationError)
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.and_then(|reference| {
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debug!("Build reference file: {:?}", reference);
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reference.fs_file()
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.chain_err(|| MEK::RefHandlingError)
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.and_then(|path| File::open(path).chain_err(|| MEK::IOError))
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.and_then(|mut file| {
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let mut s = String::new();
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file.read_to_string(&mut s)
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.map(|_| s)
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.chain_err(|| MEK::IOError)
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})
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.map(Buffer::from)
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.map(|buffer| Mail(reference, buffer))
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})
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}
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/// Opens a mail by the passed hash
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pub fn open<S: AsRef<str>>(store: &Store, hash: S) -> Result<Option<Mail>> {
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debug!("Opening Mail by Hash");
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store.get_by_hash(String::from(hash.as_ref()))
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.chain_err(|| MEK::FetchByHashError)
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.chain_err(|| MEK::FetchError)
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.and_then(|o| match o {
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Some(r) => Mail::from_fle(r).map(Some),
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None => Ok(None),
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})
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}
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/// Implement me as TryFrom as soon as it is stable
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pub fn from_fle(fle: FileLockEntry<'a>) -> Result<Mail<'a>> {
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fle.fs_file()
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.chain_err(|| MEK::RefHandlingError)
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.and_then(|path| File::open(path).chain_err(|| MEK::IOError))
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.and_then(|mut file| {
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let mut s = String::new();
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file.read_to_string(&mut s)
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.map(|_| s)
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.chain_err(|| MEK::IOError)
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})
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.map(Buffer::from)
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.map(|buffer| Mail(fle, buffer))
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}
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pub fn get_field(&self, field: &str) -> Result<Option<String>> {
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debug!("Getting field in mail: {:?}", field);
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self.1
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.parsed()
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.chain_err(|| MEK::MailParsingError)
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.map(|parsed| {
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parsed.headers
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.iter()
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.filter(|hdr| hdr.name == field)
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.nth(0)
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.and_then(|field| field.get_value().ok())
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})
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}
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pub fn get_from(&self) -> Result<Option<String>> {
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self.get_field("From")
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}
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pub fn get_to(&self) -> Result<Option<String>> {
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self.get_field("To")
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}
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pub fn get_subject(&self) -> Result<Option<String>> {
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self.get_field("Subject")
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}
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pub fn get_message_id(&self) -> Result<Option<String>> {
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self.get_field("Message-ID")
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}
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pub fn get_in_reply_to(&self) -> Result<Option<String>> {
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self.get_field("In-Reply-To")
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}
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}
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