use crate::error::Error;
use crate::postgres::PgConnectOptions;
use percent_encoding::percent_decode_str;
use std::net::IpAddr;
use std::str::FromStr;
use url::Url;
impl FromStr for PgConnectOptions {
type Err = Error;
fn from_str(s: &str) -> Result<Self, Error> {
let url: Url = s.parse().map_err(Error::config)?;
let mut options = Self::new_without_pgpass();
if let Some(host) = url.host_str() {
let host_decoded = percent_decode_str(host);
options = match host_decoded.clone().next() {
Some(b'/') => options.socket(&*host_decoded.decode_utf8().map_err(Error::config)?),
_ => options.host(host),
}
}
if let Some(port) = url.port() {
options = options.port(port);
}
let username = url.username();
if !username.is_empty() {
options = options.username(
&percent_decode_str(username)
.decode_utf8()
.map_err(Error::config)?,
);
}
if let Some(password) = url.password() {
options = options.password(
&percent_decode_str(password)
.decode_utf8()
.map_err(Error::config)?,
);
}
let path = url.path().trim_start_matches('/');
if !path.is_empty() {
options = options.database(path);
}
for (key, value) in url.query_pairs().into_iter() {
match &key as &str {
"sslmode" | "ssl-mode" => {
options = options.ssl_mode(value.parse().map_err(Error::config)?);
}
"sslrootcert" | "ssl-root-cert" | "ssl-ca" => {
options = options.ssl_root_cert(value.as_ref());
}
"sslcert" | "ssl-cert" => options = options.ssl_client_cert(value.as_ref()),
"sslkey" | "ssl-key" => options = options.ssl_client_key(value.as_ref()),
"statement-cache-capacity" => {
options =
options.statement_cache_capacity(value.parse().map_err(Error::config)?);
}
"host" => {
if value.starts_with("/") {
options = options.socket(value.as_ref());
} else {
options = options.host(value.as_ref());
}
}
"hostaddr" => {
value.parse::<IpAddr>().map_err(Error::config)?;
options = options.host(value.as_ref())
}
"port" => options = options.port(value.parse().map_err(Error::config)?),
"dbname" => options = options.database(value.as_ref()),
"user" => options = options.username(value.as_ref()),
"password" => options = options.password(value.as_ref()),
"application_name" => options = options.application_name(value.as_ref()),
"options" => {
if let Some(options) = options.options.as_mut() {
options.push(' ');
options.push_str(value.as_ref());
} else {
options.options = Some(value.to_string());
}
}
k if k.starts_with("options[") => {
if let Some(key) = k.strip_prefix("options[").unwrap().strip_suffix(']') {
options = options.options([(key, value.as_ref())]);
}
}
_ => log::warn!("ignoring unrecognized connect parameter: {}={}", key, value),
}
}
let options = options.apply_pgpass();
Ok(options)
}
}
#[test]
fn it_parses_socket_correctly_from_parameter() {
let url = "postgres:///?host=/var/run/postgres/";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(Some("/var/run/postgres/".into()), opts.socket);
}
#[test]
fn it_parses_host_correctly_from_parameter() {
let url = "postgres:///?host=google.database.com";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(None, opts.socket);
assert_eq!("google.database.com", &opts.host);
}
#[test]
fn it_parses_hostaddr_correctly_from_parameter() {
let url = "postgres:///?hostaddr=8.8.8.8";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(None, opts.socket);
assert_eq!("8.8.8.8", &opts.host);
}
#[test]
fn it_parses_port_correctly_from_parameter() {
let url = "postgres:///?port=1234";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(None, opts.socket);
assert_eq!(1234, opts.port);
}
#[test]
fn it_parses_dbname_correctly_from_parameter() {
let url = "postgres:///?dbname=some_db";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(None, opts.socket);
assert_eq!(Some("some_db"), opts.database.as_deref());
}
#[test]
fn it_parses_user_correctly_from_parameter() {
let url = "postgres:///?user=some_user";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(None, opts.socket);
assert_eq!("some_user", opts.username);
}
#[test]
fn it_parses_password_correctly_from_parameter() {
let url = "postgres:///?password=some_pass";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(None, opts.socket);
assert_eq!(Some("some_pass"), opts.password.as_deref());
}
#[test]
fn it_parses_application_name_correctly_from_parameter() {
let url = "postgres:///?application_name=some_name";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(Some("some_name"), opts.application_name.as_deref());
}
#[test]
fn it_parses_username_with_at_sign_correctly() {
let url = "postgres://user@hostname:password@hostname:5432/database";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!("user@hostname", &opts.username);
}
#[test]
fn it_parses_password_with_non_ascii_chars_correctly() {
let url = "postgres://username:p@ssw0rd@hostname:5432/database";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(Some("p@ssw0rd".into()), opts.password);
}
#[test]
fn it_parses_socket_correctly_percent_encoded() {
let url = "postgres://%2Fvar%2Flib%2Fpostgres/database";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(Some("/var/lib/postgres/".into()), opts.socket);
}
#[test]
fn it_parses_socket_correctly_with_username_percent_encoded() {
let url = "postgres://some_user@%2Fvar%2Flib%2Fpostgres/database";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!("some_user", opts.username);
assert_eq!(Some("/var/lib/postgres/".into()), opts.socket);
assert_eq!(Some("database"), opts.database.as_deref());
}
#[test]
fn it_parses_libpq_options_correctly() {
let url = "postgres:///?options=-c%20synchronous_commit%3Doff%20--search_path%3Dpostgres";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(
Some("-c synchronous_commit=off --search_path=postgres".into()),
opts.options
);
}
#[test]
fn it_parses_sqlx_options_correctly() {
let url = "postgres:///?options[synchronous_commit]=off&options[search_path]=postgres";
let opts = PgConnectOptions::from_str(url).unwrap();
assert_eq!(
Some("-c synchronous_commit=off -c search_path=postgres".into()),
opts.options
);
}