63 lines
1.7 KiB
Rust
63 lines
1.7 KiB
Rust
use std::collections::HashMap;
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use crate::{
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commands::{
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get_and_parse_property, get_optional_property, get_property, Command, Request,
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RequestParserError, RequestParserResult, ResponseAttributes, ResponseParserError,
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},
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common::Offset,
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};
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pub struct ReadPicture;
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pub struct ReadPictureResponse {
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pub size: usize,
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pub binary: Vec<u8>,
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pub mimetype: Option<String>,
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}
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impl Command for ReadPicture {
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type Response = Option<ReadPictureResponse>;
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const COMMAND: &'static str = "readpicture";
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fn parse_request(mut parts: std::str::SplitWhitespace<'_>) -> RequestParserResult<'_> {
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let uri = match parts.next() {
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Some(s) => s,
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None => return Err(RequestParserError::UnexpectedEOF),
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};
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let offset = match parts.next() {
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Some(s) => s
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.parse::<Offset>()
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.map_err(|_| RequestParserError::SyntaxError(1, s.to_owned()))?,
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None => return Err(RequestParserError::UnexpectedEOF),
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};
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debug_assert!(parts.next().is_none());
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Ok((Request::ReadPicture(uri.to_string(), offset), ""))
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}
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fn parse_response(
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parts: ResponseAttributes<'_>,
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) -> Result<Self::Response, ResponseParserError> {
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let parts: HashMap<_, _> = parts.into();
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if parts.is_empty() {
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return Ok(None);
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}
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let size = get_and_parse_property!(parts, "size", Text);
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let binary = get_property!(parts, "binary", Binary).into();
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let mimetype = get_optional_property!(parts, "mimetype", Text).map(|s| s.to_string());
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Ok(Some(ReadPictureResponse {
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size,
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binary,
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mimetype,
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}))
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}
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}
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