258 lines
9.8 KiB
Rust
258 lines
9.8 KiB
Rust
/*
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* meli - sqlite3.rs
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*
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* Copyright 2019 Manos Pitsidianakis
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*
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* This file is part of meli.
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*
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* meli is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* meli 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with meli. If not, see <http://www.gnu.org/licenses/>.
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*/
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use melib::{
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email::EnvelopeHash,
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thread::{SortField, SortOrder},
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MeliError, Result, StackVec,
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};
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use rusqlite::{params, Connection};
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use std::borrow::Cow;
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use std::convert::TryInto;
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#[inline(always)]
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fn escape_double_quote(w: &str) -> Cow<str> {
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if w.contains('"') {
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Cow::from(w.replace('"', "\"\""))
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} else {
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Cow::from(w)
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}
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}
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#[inline(always)]
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fn fts5_bareword(w: &str) -> Cow<str> {
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if w == "AND" || w == "OR" || w == "NOT" {
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Cow::from(w)
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} else {
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if !w.is_ascii() {
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Cow::from(format!("\"{}\"", escape_double_quote(w)))
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} else {
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for &b in w.as_bytes() {
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if !(b > 0x2f && b < 0x3a)
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|| !(b > 0x40 && b < 0x5b)
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|| !(b > 0x60 && b < 0x7b)
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|| b != 0x60
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|| b != 26
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{
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return Cow::from(format!("\"{}\"", escape_double_quote(w)));
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}
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}
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Cow::from(w)
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}
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}
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}
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pub fn open_db(context: &crate::state::Context) -> Result<Connection> {
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let data_dir =
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xdg::BaseDirectories::with_prefix("meli").map_err(|e| MeliError::new(e.to_string()))?;
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let conn = Connection::open(
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data_dir
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.place_data_file("meli.db")
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.map_err(|e| MeliError::new(e.to_string()))?,
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)
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.map_err(|e| MeliError::new(e.to_string()))?;
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//let conn = Connection::open_in_memory().map_err(|e| MeliError::new(e.to_string()))?;
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/*
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*
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pub struct Envelope {
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date: String,
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from: Vec<Address>,
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to: Vec<Address>,
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cc: Vec<Address>,
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bcc: Vec<Address>,
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subject: Option<Vec<u8>>,
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message_id: MessageID,
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in_reply_to: Option<MessageID>,
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references: Option<References>,
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other_headers: FnvHashMap<String, String>,
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timestamp: UnixTimestamp,
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thread: ThreadHash,
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hash: EnvelopeHash,
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flags: Flag,
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has_attachments: bool,
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}
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*/
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conn.execute_batch(
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"CREATE TABLE IF NOT EXISTS envelopes (
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id INTEGER PRIMARY KEY,
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hash BLOB NOT NULL,
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date TEXT NOT NULL,
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_from TEXT NOT NULL,
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_to TEXT NOT NULL,
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cc TEXT NOT NULL,
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bcc TEXT NOT NULL,
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subject TEXT NOT NULL,
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message_id TEXT NOT NULL,
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in_reply_to TEXT NOT NULL,
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_references TEXT NOT NULL,
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flags INTEGER NOT NULL,
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has_attachments BOOLEAN NOT NULL,
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body_text TEXT NOT NULL,
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timestamp BLOB NOT NULL
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);
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CREATE TABLE IF NOT EXISTS folders (
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id INTEGER PRIMARY KEY,
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hash BLOB NOT NULL,
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date TEXT NOT NULL,
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_from TEXT NOT NULL,
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_to TEXT NOT NULL,
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cc TEXT NOT NULL,
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bcc TEXT NOT NULL,
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subject TEXT NOT NULL,
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message_id TEXT NOT NULL,
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in_reply_to TEXT NOT NULL,
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_references TEXT NOT NULL,
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flags INTEGER NOT NULL,
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has_attachments BOOLEAN NOT NULL,
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body_text TEXT NOT NULL,
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timestamp BLOB NOT NULL
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);
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CREATE INDEX IF NOT EXISTS envelope_timestamp_index ON envelopes (timestamp);
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CREATE INDEX IF NOT EXISTS envelope__from_index ON envelopes (_from);
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CREATE INDEX IF NOT EXISTS envelope__to_index ON envelopes (_to);
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CREATE INDEX IF NOT EXISTS envelope_cc_index ON envelopes (cc);
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CREATE INDEX IF NOT EXISTS envelope_bcc_index ON envelopes (bcc);
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CREATE INDEX IF NOT EXISTS envelope_message_id_index ON envelopes (message_id);
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CREATE VIRTUAL TABLE IF NOT EXISTS fts USING fts5(subject, body_text, content=envelopes, content_rowid=id);
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-- Triggers to keep the FTS index up to date.
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CREATE TRIGGER IF NOT EXISTS envelopes_ai AFTER INSERT ON envelopes BEGIN
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INSERT INTO fts(rowid, subject, body_text) VALUES (new.id, new.subject, new.body_text);
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END;
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CREATE TRIGGER IF NOT EXISTS envelopes_ad AFTER DELETE ON envelopes BEGIN
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INSERT INTO fts(fts, rowid, subject, body_text) VALUES('delete', old.id, old.subject, old.body_text);
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END;
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CREATE TRIGGER IF NOT EXISTS envelopes_au AFTER UPDATE ON envelopes BEGIN
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INSERT INTO fts(fts, rowid, subject, body_text) VALUES('delete', old.id, old.subject, old.body_text);
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INSERT INTO fts(rowid, subject, body_text) VALUES (new.id, new.subject, new.body_text);
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END; ",
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)
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.map_err(|e| MeliError::new(e.to_string()))?;
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Ok(conn)
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}
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pub fn insert(context: &crate::state::Context) -> Result<()> {
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let data_dir =
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xdg::BaseDirectories::with_prefix("meli").map_err(|e| MeliError::new(e.to_string()))?;
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let conn = Connection::open(
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data_dir
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.place_data_file("meli.db")
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.map_err(|e| MeliError::new(e.to_string()))?,
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)
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.map_err(|e| MeliError::new(e.to_string()))?;
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for acc in context.accounts.iter() {
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debug!("inserting {} envelopes", acc.collection.envelopes.len());
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for e in acc.collection.envelopes.values() {
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conn.execute(
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"INSERT OR REPLACE INTO envelopes (hash, date, _from, _to, cc, bcc, subject, message_id, in_reply_to, _references, flags, has_attachments, body_text, timestamp)
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VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11, ?12, ?13, ?14)",
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params![e.hash().to_be_bytes().to_vec(), e.date_as_str(), e.field_from_to_string(), e.field_to_to_string(), e.field_cc_to_string(), e.field_bcc_to_string(), e.subject().into_owned().trim_end_matches('\u{0}'), e.message_id_display().to_string(), e.in_reply_to_display().map(|f| f.to_string()).unwrap_or(String::new()), e.field_references_to_string(), i64::from(e.flags().bits()), if e.has_attachments() { 1 } else { 0 }, String::from("sdfsa"), e.date().to_be_bytes().to_vec()],
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)
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.map_err(|e| MeliError::new(e.to_string()))?;
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}
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}
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Ok(())
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}
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pub fn search(
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term: &str,
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(sort_field, sort_order): (SortField, SortOrder),
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) -> Result<StackVec<EnvelopeHash>> {
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let data_dir =
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xdg::BaseDirectories::with_prefix("meli").map_err(|e| MeliError::new(e.to_string()))?;
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let conn = Connection::open(
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data_dir
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.place_data_file("meli.db")
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.map_err(|e| MeliError::new(e.to_string()))?,
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)
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.map_err(|e| MeliError::new(e.to_string()))?;
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let sort_field = match debug!(sort_field) {
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SortField::Subject => "subject",
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SortField::Date => "timestamp",
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};
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let sort_order = match debug!(sort_order) {
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SortOrder::Asc => "ASC",
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SortOrder::Desc => "DESC",
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};
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debug!("SELECT hash FROM envelopes INNER JOIN fts ON fts.rowid = envelopes.id WHERE fts MATCH ? ORDER BY {} {};", sort_field, sort_order);
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let mut stmt = conn.prepare(
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format!("SELECT hash FROM envelopes INNER JOIN fts ON fts.rowid = envelopes.id WHERE fts MATCH ? ORDER BY {} {};", sort_field, sort_order).as_str())
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.map_err(|e| MeliError::new(e.to_string()))?;
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let results = stmt
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.query_map(&[fts5_bareword(term)], |row| Ok(row.get(0)?))
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.map_err(|e| MeliError::new(e.to_string()))?
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.map(|r: std::result::Result<Vec<u8>, rusqlite::Error>| {
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Ok(u64::from_be_bytes(
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r.map_err(|e| MeliError::new(e.to_string()))?
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.as_slice()
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.try_into()
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.map_err(|e: std::array::TryFromSliceError| MeliError::new(e.to_string()))?,
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))
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})
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.collect::<Result<StackVec<EnvelopeHash>>>();
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results
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}
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pub fn from(term: &str) -> Result<StackVec<EnvelopeHash>> {
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let data_dir =
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xdg::BaseDirectories::with_prefix("meli").map_err(|e| MeliError::new(e.to_string()))?;
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let conn = Connection::open_with_flags(
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data_dir
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.place_data_file("meli.db")
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.map_err(|e| MeliError::new(e.to_string()))?,
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rusqlite::OpenFlags::SQLITE_OPEN_READ_ONLY,
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)
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.map_err(|e| MeliError::new(e.to_string()))?;
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let mut stmt = conn
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.prepare("SELECT hash FROM envelopes WHERE _from LIKE ?;")
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.map_err(|e| MeliError::new(e.to_string()))?;
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let results = stmt
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.query_map(&[term.trim()], |row| Ok(row.get(0)?))
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.map_err(|e| MeliError::new(e.to_string()))?
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.map(|r: std::result::Result<Vec<u8>, rusqlite::Error>| {
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Ok(u64::from_be_bytes(
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r.map_err(|e| MeliError::new(e.to_string()))?
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.as_slice()
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.try_into()
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.map_err(|e: std::array::TryFromSliceError| MeliError::new(e.to_string()))?,
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))
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})
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.collect::<Result<StackVec<EnvelopeHash>>>();
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results
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}
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