extern crate regex;
use self::regex::Regex;
use super::{Validated, ValidatedWrapper};
use std::error::Error;
use std::fmt::{self, Debug, Display, Formatter};
use std::hash::{Hash, Hasher};
use std::ops::Deref;
use std::str::{FromStr, Utf8Error};
lazy_static! {
static ref VERSION_RE: Regex =
Regex::new(r"^(\d)+(\.(\d)+)?(\.(\d)+)?(-([^\x00-\x1F\x7F]+))?$").unwrap();
}
#[derive(Debug, PartialEq, Clone)]
pub enum VersionError {
IncorrectFormat,
UTF8Error(Utf8Error),
}
impl Display for VersionError {
#[inline]
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
Debug::fmt(self, f)
}
}
impl Error for VersionError {}
impl From<Utf8Error> for VersionError {
#[inline]
fn from(err: Utf8Error) -> Self {
VersionError::UTF8Error(err)
}
}
pub type VersionResult = Result<Version, VersionError>;
#[derive(Debug, PartialEq)]
pub struct VersionValidator {}
#[derive(Clone)]
pub struct Version {
full_version: String,
major: u16,
minor: Option<u16>,
patch: Option<u16>,
label: Option<usize>,
}
impl Version {
#[inline]
pub fn get_full_version(&self) -> &str {
&self.full_version
}
#[inline]
pub fn get_full_version_without_label(&self) -> &str {
if let Some(label) = self.label {
&self.full_version[..(label - 1)]
} else {
&self.full_version
}
}
#[inline]
pub fn get_label(&self) -> Option<&str> {
if let Some(label) = self.label {
Some(&self.full_version[label..])
} else {
None
}
}
#[inline]
pub fn get_major(&self) -> u16 {
self.major
}
#[inline]
pub fn get_minor(&self) -> Option<u16> {
self.minor
}
#[inline]
pub fn get_patch(&self) -> Option<u16> {
self.patch
}
#[inline]
pub fn into_string(self) -> String {
self.full_version
}
}
impl Deref for Version {
type Target = str;
#[inline]
fn deref(&self) -> &Self::Target {
&self.full_version
}
}
impl Validated for Version {}
impl Debug for Version {
#[inline]
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
impl_debug_for_tuple_struct!(Version, f, self, let .0 = self.full_version);
}
}
impl Display for Version {
#[inline]
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
f.write_str(&self.full_version)?;
Ok(())
}
}
impl PartialEq for Version {
#[inline]
fn eq(&self, other: &Self) -> bool {
self.full_version.eq(&other.full_version)
}
}
impl Eq for Version {}
impl Hash for Version {
#[inline]
fn hash<H: Hasher>(&self, state: &mut H) {
self.full_version.hash(state)
}
}
impl VersionValidator {
#[inline]
pub fn is_short_crypt_url_component_url(&self, short_crypt_url_component_url: &str) -> bool {
self.parse_inner(short_crypt_url_component_url).is_ok()
}
#[inline]
pub fn parse_string(&self, full_version: String) -> VersionResult {
let mut full_version_inner = self.parse_inner(&full_version)?;
full_version_inner.full_version = full_version;
Ok(full_version_inner)
}
#[inline]
pub fn parse_str(&self, full_version: &str) -> VersionResult {
let mut full_version_inner = self.parse_inner(full_version)?;
full_version_inner.full_version.push_str(full_version);
Ok(full_version_inner)
}
fn parse_inner(&self, full_version: &str) -> VersionResult {
let c = match VERSION_RE.captures(full_version) {
Some(c) => c,
None => return Err(VersionError::IncorrectFormat),
};
let major = match c.get(1) {
Some(m) => {
match m.as_str().parse::<u16>() {
Ok(m) => m,
Err(_) => {
return Err(VersionError::IncorrectFormat);
}
}
}
None => unreachable!(),
};
let minor = match c.get(3) {
Some(m) => {
match m.as_str().parse::<u16>() {
Ok(m) => Some(m),
Err(_) => {
return Err(VersionError::IncorrectFormat);
}
}
}
None => None,
};
let patch = match c.get(5) {
Some(m) => {
match m.as_str().parse::<u16>() {
Ok(m) => Some(m),
Err(_) => {
return Err(VersionError::IncorrectFormat);
}
}
}
None => None,
};
let label = match c.get(7) {
Some(m) => Some(m.start()),
None => None,
};
Ok(Version {
full_version: String::new(),
major,
minor,
patch,
label,
})
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_version_methods() {
let version = "1.2.3-alpha.1".to_string();
let vv = VersionValidator {};
let version = vv.parse_string(version).unwrap();
assert_eq!("1.2.3-alpha.1", version.get_full_version());
assert_eq!("1.2.3", version.get_full_version_without_label());
assert_eq!(1, version.get_major());
assert_eq!(2, version.get_minor().unwrap());
assert_eq!(3, version.get_patch().unwrap());
assert_eq!("alpha.1", version.get_label().unwrap());
}
#[test]
fn test_version_lv1() {
let version = "0.1.2".to_string();
let vv = VersionValidator {};
vv.parse_string(version).unwrap();
}
}
impl ValidatedWrapper for Version {
type Error = VersionError;
#[inline]
fn from_string(full_version: String) -> Result<Self, Self::Error> {
Version::from_string(full_version)
}
#[inline]
fn from_str(full_version: &str) -> Result<Self, Self::Error> {
Version::from_str(full_version)
}
}
impl Version {
#[inline]
pub fn from_string(full_version: String) -> Result<Self, VersionError> {
Version::create_validator().parse_string(full_version)
}
#[inline]
#[allow(clippy::should_implement_trait)]
pub fn from_str(full_version: &str) -> Result<Self, VersionError> {
Version::create_validator().parse_str(full_version)
}
#[inline]
fn create_validator() -> VersionValidator {
VersionValidator {}
}
}
impl FromStr for Version {
type Err = VersionError;
#[inline]
fn from_str(s: &str) -> Result<Self, Self::Err> {
Version::from_str(s)
}
}
#[cfg(feature = "rocketly")]
impl<'a> ::rocket::request::FromFormValue<'a> for Version {
type Error = VersionError;
#[inline]
fn from_form_value(form_value: &'a ::rocket::http::RawStr) -> Result<Self, Self::Error> {
Version::from_string(form_value.url_decode()?)
}
}
#[cfg(feature = "rocketly")]
impl<'a> ::rocket::request::FromParam<'a> for Version {
type Error = VersionError;
#[inline]
fn from_param(param: &'a ::rocket::http::RawStr) -> Result<Self, Self::Error> {
Version::from_string(param.url_decode()?)
}
}
#[cfg(feature = "serdely")]
struct StringVisitor;
#[cfg(feature = "serdely")]
impl<'de> ::serde::de::Visitor<'de> for StringVisitor {
type Value = Version;
#[inline]
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("a version string")
}
#[inline]
fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
where
E: ::serde::de::Error, {
Version::from_str(v).map_err(|err| E::custom(err.to_string()))
}
#[inline]
fn visit_string<E>(self, v: String) -> Result<Self::Value, E>
where
E: ::serde::de::Error, {
Version::from_string(v).map_err(|err| E::custom(err.to_string()))
}
}
#[cfg(feature = "serdely")]
impl<'de> ::serde::Deserialize<'de> for Version {
#[inline]
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: ::serde::Deserializer<'de>, {
deserializer.deserialize_string(StringVisitor)
}
}
#[cfg(feature = "serdely")]
impl ::serde::Serialize for Version {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: ::serde::Serializer, {
serializer.serialize_str(&self.full_version)
}
}