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#[cfg(feature = "read_write")]
use crate::read_write::error::FromComponentError;
#[cfg(feature = "read_write")]
use crate::read_write::component::Component;
#[cfg(feature = "diesel")]
use crate::DieselConversionError;
#[cfg(feature = "read_write")]
use regex::Regex;
use std::convert::TryFrom;
#[derive(Debug, Clone, Eq, PartialEq, Ord, PartialOrd)]
pub enum Uri {
Url { url: String },
Bytes { val: Vec<u8>, mime: String },
}
impl Uri {
#[must_use]
pub const fn new_url(string: String) -> Self {
Self::Url { url: string }
}
#[must_use]
pub const fn new_bytes(bytes: Vec<u8>, mime: String) -> Self {
Self::Bytes { val: bytes, mime }
}
}
#[cfg(feature = "diesel_support")]
impl Uri {
pub(crate) fn to_sql_raw(
this: Option<Self>,
) -> (Option<String>, Option<Vec<u8>>, Option<String>) {
match this {
Some(photo) => match photo {
Uri::Url { url } => (Some(url), None, None),
Uri::Bytes { val, mime } => (None, Some(val), Some(mime)),
},
None => (None, None, None),
}
}
pub(crate) fn try_from_sql_raw(
tup: (Option<String>, Option<Vec<u8>>, Option<String>, String),
) -> Result<Option<Uri>, DieselConversionError> {
match tup.0 {
Some(val) => Ok(Some(Uri::new_url(val))),
None => match tup.1 {
Some(bin) => match tup.2 {
Some(mime) => Ok(Some(Uri::new_bytes(bin, mime))),
None => Err(DieselConversionError::InvalidProperty(format!(
"{3}(Uri) {} is set to null, \n\
but {3}(Uri) {} has the value of {:#?}. A Uri url value has also not been \n\
given and so the enum is invalid.",
"mime", "bin", bin, tup.3
))),
},
None => match tup.2 {
None => return Ok(None),
Some(mime) => Err(DieselConversionError::InvalidProperty(format!(
"{3}(Uri) {} is set to null, \n\
but {3}(Uri) {} has the value of {:#?}. A Uri url value has also not been \n\
given and so the enum is invalid.",
"bin", "mime", mime, tup.3
))),
},
},
}
}
}
#[cfg(feature = "read_write")]
impl From<Uri> for Component {
fn from(uri: Uri) -> Self {
match uri {
Uri::Url { url } => Self {
name: "_URI".to_string(),
values: vec![vec![url]],
..Self::default()
},
Uri::Bytes { val, mime } => Self {
name: "_URI".to_string(),
values: vec![
vec![format!("data:{}", mime)],
vec!["base64".to_string(), base64::encode(val)],
],
..Self::default()
},
}
}
}
#[cfg(feature = "read_write")]
impl TryFrom<Component> for Uri {
type Error = Box<dyn std::error::Error>;
fn try_from(comp: Component) -> Result<Self, Self::Error> {
lazy_static! {
static ref RE_BIN_1: Regex =
Regex::new(r#"^data:\w+/[\w\+\.-]+$"#).unwrap();
}
match comp.values.len() {
2 => {
let mime = comp.values[0]
.get(0)
.ok_or(FromComponentError::NotEnoughValues)?;
if RE_BIN_1.is_match(mime) {
Ok(Self::Bytes {
mime: mime[5..].to_string(),
val: base64::decode(
comp.values[1]
.get(1)
.ok_or(FromComponentError::NotEnoughValues)?,
)?,
})
} else {
Err(Box::new(FromComponentError::InvalidRegex))
}
}
1 => Ok(Self::Url {
url: comp.values[0]
.get(0)
.ok_or(FromComponentError::NotEnoughValues)?
.to_string(),
}),
_ => Err(Box::new(FromComponentError::NotEnoughValues)),
}
}
}