mirror of
https://github.com/lifegpc/pixiv_downloader.git
synced 2026-06-06 05:49:01 +08:00
666 lines
23 KiB
Rust
666 lines
23 KiB
Rust
use convert_case::Case;
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use convert_case::Casing;
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use proc_macro::TokenStream;
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use quote::quote;
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use syn::bracketed;
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use syn::parse::Parse;
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use syn::parse_macro_input;
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use syn::token;
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use syn::Block;
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use syn::Expr;
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use syn::Ident;
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use syn::ItemEnum;
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use syn::ItemFn;
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use syn::Lit;
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use syn::LitBool;
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use syn::LitInt;
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use syn::LitStr;
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#[proc_macro]
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pub fn define_struct_reader_fn(item: TokenStream) -> TokenStream {
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let i = parse_macro_input!(item as Ident);
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let lefname = format!("read_le_{}", i);
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let lefname = Ident::new(&lefname, i.span());
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let befname = format!("read_be_{}", i);
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let befname = Ident::new(&befname, i.span());
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let stream = quote! {
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#[doc = concat!("Read [", stringify!(#i), "] in little endian.")]
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fn #lefname(&mut self) -> Result<#i, Self::Error>;
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#[doc = concat!("Read [", stringify!(#i), "] in big endian.")]
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fn #befname(&mut self) -> Result<#i, Self::Error>;
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};
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stream.into()
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}
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#[proc_macro]
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pub fn impl_struct_reader_read(item: TokenStream) -> TokenStream {
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let i = parse_macro_input!(item as Ident);
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let lefname = format!("read_le_{}", i);
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let lefname = Ident::new(&lefname, i.span());
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let befname = format!("read_be_{}", i);
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let befname = Ident::new(&befname, i.span());
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let stream = quote! {
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fn #lefname(&mut self) -> Result<#i, Self::Error> {
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let mut buf = [0u8; std::mem::size_of::<#i>()];
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self.read_exact(&mut buf)?;
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Ok(<#i>::from_le_bytes(buf))
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}
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fn #befname(&mut self) -> Result<#i, Self::Error> {
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let mut buf = [0u8; std::mem::size_of::<#i>()];
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self.read_exact(&mut buf)?;
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Ok(<#i>::from_be_bytes(buf))
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}
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};
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stream.into()
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}
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#[proc_macro]
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pub fn define_struct_writer_fn(item: TokenStream) -> TokenStream {
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let i = parse_macro_input!(item as Ident);
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let lefname = format!("write_le_{}", i);
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let lefname = Ident::new(&lefname, i.span());
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let befname = format!("write_be_{}", i);
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let befname = Ident::new(&befname, i.span());
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let stream = quote! {
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#[doc = concat!("Write [", stringify!(#i), "] in little endian.")]
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fn #lefname(&mut self, data: #i) -> Result<(), Self::Error>;
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#[doc = concat!("Write [", stringify!(#i), "] in big endian.")]
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fn #befname(&mut self, data: #i) -> Result<(), Self::Error>;
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};
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stream.into()
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}
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#[proc_macro]
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pub fn impl_struct_writer_write(item: TokenStream) -> TokenStream {
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let i = parse_macro_input!(item as Ident);
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let lefname = format!("write_le_{}", i);
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let lefname = Ident::new(&lefname, i.span());
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let befname = format!("write_be_{}", i);
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let befname = Ident::new(&befname, i.span());
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let stream = quote! {
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#[inline]
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fn #lefname(&mut self, data: #i) -> Result<(), Self::Error> {
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self.write_all(&data.to_le_bytes())
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}
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#[inline]
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fn #befname(&mut self, data: #i) -> Result<(), Self::Error> {
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self.write_all(&data.to_be_bytes())
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}
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};
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stream.into()
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}
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#[proc_macro_attribute]
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pub fn async_timeout_test(attr: TokenStream, item: TokenStream) -> TokenStream {
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let ItemFn {
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attrs,
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vis,
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sig,
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block,
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} = parse_macro_input!(item as ItemFn);
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let dura = parse_duration::parse(attr.to_string().as_str()).unwrap();
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let secs = LitInt::new(format!("{}", dura.as_secs()).as_str(), sig.ident.span());
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let nanos = LitInt::new(
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format!("{}", dura.subsec_nanos()).as_str(),
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sig.ident.span(),
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);
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let stmts = &block.stmts;
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let stream = quote! {
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#(#attrs)* #vis #sig {
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let dura = std::time::Duration::new(#secs, #nanos);
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let f = async {
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#(#stmts)*
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};
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tokio::time::timeout(dura, f).await.unwrap();
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}
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};
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stream.into()
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}
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struct FanboxApiTest {
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pub name: Ident,
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pub block: Block,
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}
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impl Parse for FanboxApiTest {
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fn parse(input: syn::parse::ParseStream) -> syn::Result<Self> {
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let name = Ident::parse(input)?;
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token::Comma::parse(input)?;
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let block = syn::Block::parse(input)?;
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Ok(Self { name, block })
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}
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}
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#[proc_macro]
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pub fn fanbox_api_test(item: TokenStream) -> TokenStream {
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let FanboxApiTest { name, block } = parse_macro_input!(item as FanboxApiTest);
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let stmts = block.stmts;
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let stream = quote! {
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#[proc_macros::async_timeout_test(120s)]
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#[tokio::test(flavor = "multi_thread")]
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async fn #name() {
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match std::env::var("FANBOX_COOKIES_FILE") {
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Ok(path) => {
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let client = crate::fanbox_api::FanboxClient::new();
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if !client.init(Some(path)) {
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panic!("Failed to initiailze the client.");
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}
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if !client.check_login().await {
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println!("The client is not logined. Skip test.");
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return;
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}
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#(#stmts)*
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}
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Err(_) => {
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println!("No cookies files specified, skip test.")
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}
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}
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}
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};
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stream.into()
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}
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struct FanboxApiQuickTest {
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pub name: Ident,
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pub expr: Expr,
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pub errmsg: LitStr,
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}
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impl Parse for FanboxApiQuickTest {
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fn parse(input: syn::parse::ParseStream) -> syn::Result<Self> {
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let name = Ident::parse(input)?;
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token::Comma::parse(input)?;
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let expr = Expr::parse(input)?;
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token::Comma::parse(input)?;
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let errmsg = Lit::parse(input)?;
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match errmsg {
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Lit::Str(errmsg) => Ok(Self { name, expr, errmsg }),
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_ => Err(syn::Error::new(errmsg.span(), "Failed to parse string.")),
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}
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}
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}
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#[proc_macro]
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pub fn fanbox_api_quick_test(item: TokenStream) -> TokenStream {
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let FanboxApiQuickTest { name, expr, errmsg } = parse_macro_input!(item as FanboxApiQuickTest);
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let stream = quote! {
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#[proc_macros::async_timeout_test(120s)]
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#[tokio::test(flavor = "multi_thread")]
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async fn #name() {
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match std::env::var("FANBOX_COOKIES_FILE") {
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Ok(path) => {
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let client = crate::fanbox_api::FanboxClient::new();
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if !client.init(Some(path)) {
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panic!("Failed to initiailze the client.");
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}
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if !client.check_login().await {
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println!("The client is not logined. Skip test.");
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return;
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}
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match #expr.await {
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Some(data) => {
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println!("{:?}", data);
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}
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None => {
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panic!("{}", #errmsg);
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}
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}
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}
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Err(_) => {
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println!("No cookies files specified, skip test.")
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}
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}
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}
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};
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stream.into()
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}
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struct HTTPHeader {
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pub header: String,
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}
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impl Parse for HTTPHeader {
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fn parse(input: syn::parse::ParseStream) -> syn::Result<Self> {
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let mut header = String::new();
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let ident = Ident::parse(input)?;
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header += ident.to_string().replace("_", "-").as_str();
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loop {
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if input.cursor().eof() {
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break;
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}
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match token::Sub::parse(input) {
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Ok(_) => {}
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Err(_) => {
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break;
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}
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}
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let ident = Ident::parse(input)?;
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header += "-";
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header += ident.to_string().replace("_", "-").as_str();
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}
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return Ok(Self { header });
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}
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}
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struct FilterHttpMethods {
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pub req: Ident,
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pub typ: Expr,
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pub handle_options: LitBool,
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pub ctx: Option<Expr>,
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pub methods: Vec<Ident>,
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pub cors_methods: Option<Vec<Ident>>,
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pub expose_headers: Option<Vec<String>>,
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pub cors_allow_headers: Option<Vec<String>>,
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}
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impl Parse for FilterHttpMethods {
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fn parse(input: syn::parse::ParseStream) -> syn::Result<Self> {
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let req = Ident::parse(input)?;
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token::Comma::parse(input)?;
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let typ = Expr::parse(input)?;
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token::Comma::parse(input)?;
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let mut methods = Vec::new();
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let handle_options = match Lit::parse(input)? {
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Lit::Bool(s) => s,
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_ => {
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return Err(syn::Error::new(input.span(), "Failed to parse boolean."));
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}
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};
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let ctx = if handle_options.value() {
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token::Comma::parse(input)?;
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Some(Expr::parse(input)?)
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} else {
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None
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};
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let mut cors_methods = None;
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let mut expose_headers = None;
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let mut cors_allow_headers = None;
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loop {
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if input.cursor().eof() {
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break;
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}
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token::Comma::parse(input)?;
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let method = Ident::parse(input)?;
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if method.to_string() == "cors_methods" {
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cors_methods.replace(Vec::new());
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token::Eq::parse(input)?;
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let content;
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bracketed!(content in input);
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let first: Ident = content.parse()?;
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cors_methods.as_mut().unwrap().push(first);
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while !content.is_empty() {
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let _: token::Comma = content.parse()?;
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let m: Ident = content.parse()?;
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cors_methods.as_mut().unwrap().push(m);
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}
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} else if method.to_string() == "expose_headers" {
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expose_headers.replace(Vec::new());
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token::Eq::parse(input)?;
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let content;
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bracketed!(content in input);
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let first: HTTPHeader = content.parse()?;
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expose_headers.as_mut().unwrap().push(first.header);
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while !content.is_empty() {
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let _: token::Comma = content.parse()?;
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let m: HTTPHeader = content.parse()?;
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expose_headers.as_mut().unwrap().push(m.header);
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}
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} else if method.to_string() == "allow_headers" {
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cors_allow_headers.replace(Vec::new());
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token::Eq::parse(input)?;
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let content;
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bracketed!(content in input);
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let first: HTTPHeader = content.parse()?;
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cors_allow_headers.as_mut().unwrap().push(first.header);
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while !content.is_empty() {
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let _: token::Comma = content.parse()?;
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let m: HTTPHeader = content.parse()?;
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cors_allow_headers.as_mut().unwrap().push(m.header);
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}
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} else {
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methods.push(method);
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}
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}
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Ok(Self {
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req,
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typ,
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handle_options,
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ctx,
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methods,
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cors_methods,
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expose_headers,
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cors_allow_headers,
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})
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}
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}
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/// Filter http methods.
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///
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/// `request, 405 body, handle_options, [method [, method [, method ...]]]`
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#[proc_macro]
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pub fn filter_http_methods(item: TokenStream) -> TokenStream {
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let FilterHttpMethods {
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req,
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typ,
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handle_options,
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ctx,
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methods,
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cors_methods,
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expose_headers,
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cors_allow_headers,
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} = parse_macro_input!(item as FilterHttpMethods);
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let mut header_value = Vec::new();
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let mut streams = Vec::new();
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let mut enable_options = false;
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for method in methods {
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header_value.push(method.to_string());
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if method == "OPTIONS" && handle_options.value() {
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enable_options = true;
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} else {
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streams.push(quote!(&hyper::Method::#method => {}));
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}
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}
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let allow_header = header_value.join(", ");
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let cors_methods_header = match cors_methods {
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Some(methods) => {
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let mut v = Vec::new();
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for method in methods {
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v.push(method.to_string());
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}
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v.join(", ")
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}
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None => allow_header.clone(),
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};
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let allow_header = LitStr::new(allow_header.as_str(), req.span());
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let cors_methods_header = LitStr::new(cors_methods_header.as_str(), req.span());
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if enable_options {
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let expose_headers = match &expose_headers {
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Some(h) => {
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let headers = h.join(", ");
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let headers = LitStr::new(headers.as_str(), req.span());
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quote!(
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let builder = builder.header(hyper::header::ACCESS_CONTROL_EXPOSE_HEADERS, #headers);
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)
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}
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None => quote!(),
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};
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let cors_allow_headers = match &cors_allow_headers {
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Some(h) => {
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let headers = h.join(", ");
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let headers = LitStr::new(headers.as_str(), req.span());
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quote!(
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let builder = builder.header(hyper::header::ACCESS_CONTROL_ALLOW_HEADERS, #headers);
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)
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}
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None => quote!(),
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};
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streams.push(quote!(&hyper::Method::OPTIONS => {
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let builder = hyper::Response::builder();
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let headers = #req.headers();
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let origin = match headers.get(hyper::header::ORIGIN) {
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Some(origin) => match origin.to_str() {
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Ok(origin) => Some(origin.to_owned()),
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Err(_) => None,
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},
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None => None,
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};
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match origin {
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Some(origin) => {
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match #ctx.cors.matches(origin.as_str()) {
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crate::server::cors::CorsResult::Allowed => {
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let builder = builder
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.header(hyper::header::ACCESS_CONTROL_ALLOW_ORIGIN, origin.as_str())
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.header(hyper::header::ACCESS_CONTROL_ALLOW_METHODS, #cors_methods_header);
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#expose_headers
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#cors_allow_headers
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return Ok(builder.status(200).header("Allow", #allow_header).body(#typ)?);
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}
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crate::server::cors::CorsResult::AllowedAll => {
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let builder = builder
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.header(hyper::header::ACCESS_CONTROL_ALLOW_ORIGIN, "*")
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.header(hyper::header::ACCESS_CONTROL_ALLOW_METHODS, #cors_methods_header);
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#expose_headers
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#cors_allow_headers
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return Ok(builder.status(200).header("Allow", #allow_header).body(#typ)?);
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}
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_ => {
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return Ok(builder.status(400).header("Allow", #allow_header).body(#typ)?);
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}
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}
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}
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None => {
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return Ok(builder.status(200).header("Allow", #allow_header).body(#typ)?);
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}
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}
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}));
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}
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let post_stream = if enable_options {
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let expose_headers = match expose_headers {
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Some(h) => {
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let headers = h.join(", ");
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let headers = LitStr::new(headers.as_str(), req.span());
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quote!(
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builder.
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headers_mut()
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.try_err(gettext("Failed to build response."))?
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.insert(hyper::header::ACCESS_CONTROL_EXPOSE_HEADERS, #headers.parse()?);
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)
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}
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None => quote!(),
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};
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let cors_allow_headers = match cors_allow_headers {
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Some(h) => {
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let headers = h.join(", ");
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let headers = LitStr::new(headers.as_str(), req.span());
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quote!(
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builder.
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headers_mut()
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.try_err(gettext("Failed to build response."))?
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.insert(hyper::header::ACCESS_CONTROL_ALLOW_HEADERS, #headers.parse()?);
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)
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}
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None => quote!(),
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};
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quote!(
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let mut builder = hyper::Response::builder();
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let headers = #req.headers();
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let origin = match headers.get(hyper::header::ORIGIN) {
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Some(origin) => match origin.to_str() {
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Ok(origin) => Some(origin.to_owned()),
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Err(_) => None,
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},
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None => None,
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};
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match origin {
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Some(origin) => {
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use crate::ext::try_err::TryErr;
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use crate::gettext;
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match #ctx.cors.matches(origin.as_str()) {
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crate::server::cors::CorsResult::Allowed => {
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builder
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.headers_mut()
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.try_err(gettext("Failed to build response."))?
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.insert(hyper::header::ACCESS_CONTROL_ALLOW_ORIGIN, origin.parse()?);
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#expose_headers
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#cors_allow_headers
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}
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crate::server::cors::CorsResult::AllowedAll => {
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builder
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.headers_mut()
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.try_err(gettext("Failed to build response."))?
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.insert(hyper::header::ACCESS_CONTROL_ALLOW_ORIGIN, "*".parse()?);
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#expose_headers
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#cors_allow_headers
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}
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_ => {
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return Ok(builder.status(403).body(#typ)?);
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}
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}
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}
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None => {}
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}
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|
)
|
|
} else {
|
|
quote!()
|
|
};
|
|
let stream = quote! {
|
|
match #req.method() {
|
|
#(#streams)*
|
|
_ => {
|
|
return Ok(hyper::Response::builder().status(405).header("Allow", #allow_header).body(#typ)?)
|
|
}
|
|
}
|
|
#post_stream
|
|
};
|
|
stream.into()
|
|
}
|
|
|
|
struct CheckJsonKeys {
|
|
pub keys: Vec<(LitStr, bool, Option<CheckJsonKeys>)>,
|
|
}
|
|
|
|
impl Parse for CheckJsonKeys {
|
|
fn parse(input: syn::parse::ParseStream) -> syn::Result<Self> {
|
|
let mut keys = Vec::new();
|
|
let first: LitStr = input.parse()?;
|
|
match input.parse::<token::Add>() {
|
|
Ok(_) => {
|
|
keys.push((first, true, None));
|
|
}
|
|
Err(_) => match input.parse::<token::Colon>() {
|
|
Ok(_) => {
|
|
let content;
|
|
bracketed!(content in input);
|
|
let childrens = CheckJsonKeys::parse(&content)?;
|
|
keys.push((first, false, Some(childrens)));
|
|
}
|
|
Err(_) => {
|
|
keys.push((first, false, None));
|
|
}
|
|
},
|
|
}
|
|
while !input.is_empty() {
|
|
let _: token::Comma = input.parse()?;
|
|
if input.is_empty() {
|
|
break;
|
|
}
|
|
let key: LitStr = input.parse()?;
|
|
match input.parse::<token::Add>() {
|
|
Ok(_) => {
|
|
keys.push((key, true, None));
|
|
}
|
|
Err(_) => match input.parse::<token::Colon>() {
|
|
Ok(_) => {
|
|
let content;
|
|
bracketed!(content in input);
|
|
let childrens = CheckJsonKeys::parse(&content)?;
|
|
keys.push((key, false, Some(childrens)));
|
|
}
|
|
Err(_) => {
|
|
keys.push((key, false, None));
|
|
}
|
|
},
|
|
}
|
|
}
|
|
Ok(Self { keys })
|
|
}
|
|
}
|
|
|
|
fn get_check_json_keys_streams(
|
|
keys: Vec<(LitStr, bool, Option<CheckJsonKeys>)>,
|
|
) -> Vec<proc_macro2::TokenStream> {
|
|
let mut streams = Vec::new();
|
|
for (key, check, childrens) in keys {
|
|
match childrens {
|
|
Some(childrens) => {
|
|
let streams2 = get_check_json_keys_streams(childrens.keys);
|
|
streams.push(quote!(#key => {
|
|
let obj = sobj;
|
|
obj.is_object().try_err(format!("{} {}", gettext("Data is not a object:"), obj))?;
|
|
for (key, sobj) in obj.entries() {
|
|
match key {
|
|
#(#streams2)*
|
|
_ => { Err(format!("{} {}", gettext("Key <key> is handled:").replace("<key>", key).as_str(), obj))?; }
|
|
}
|
|
}
|
|
}))
|
|
}
|
|
None => {
|
|
if check {
|
|
let k = key.value();
|
|
let k = k.to_case(Case::Snake);
|
|
let fun = Ident::new(&k, key.span());
|
|
streams.push(quote!(#key => {
|
|
self.#fun().try_err(format!("{} {}", gettext("The value of the key <key> is missing:").replace("<key>", key).as_str(), obj))?;
|
|
}));
|
|
} else {
|
|
streams.push(quote!(#key => {}));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
streams
|
|
}
|
|
|
|
#[proc_macro]
|
|
pub fn check_json_keys(item: TokenStream) -> TokenStream {
|
|
let CheckJsonKeys { keys } = parse_macro_input!(item as CheckJsonKeys);
|
|
let streams = get_check_json_keys_streams(keys);
|
|
let stream = quote!(
|
|
{
|
|
use crate::ext::try_err::TryErr;
|
|
use crate::gettext;
|
|
self.data.is_object().try_err(format!("{} {}", gettext("Data is not a object:"), self.data))?;
|
|
let obj = &self.data;
|
|
for (key, sobj) in self.data.entries() {
|
|
match key {
|
|
#(#streams)*
|
|
_ => { Err(format!("{} {}", gettext("Key <key> is handled:").replace("<key>", key).as_str(), obj))?; }
|
|
}
|
|
}
|
|
}
|
|
);
|
|
stream.into()
|
|
}
|
|
|
|
#[proc_macro_derive(CheckUnkown)]
|
|
pub fn derive_check_unknown(item: TokenStream) -> TokenStream {
|
|
let ItemEnum {
|
|
attrs: _,
|
|
vis: _,
|
|
enum_token: _,
|
|
ident,
|
|
generics: _,
|
|
brace_token: _,
|
|
variants,
|
|
} = parse_macro_input!(item as ItemEnum);
|
|
let mut streams = Vec::new();
|
|
for i in variants.iter() {
|
|
let ident = i.ident.clone();
|
|
let s = ident.to_string();
|
|
if s == "Unknown" {
|
|
streams.push(
|
|
quote!(Self::#ident(data) => Err(crate::fanbox::error::FanboxAPIError::from(format!(
|
|
"{} {}",
|
|
crate::gettext("Failed to recognize type:"),
|
|
data
|
|
))),),
|
|
);
|
|
} else {
|
|
streams.push(
|
|
quote!(Self::#ident(tmp) => crate::fanbox::check::CheckUnkown::check_unknown(tmp),),
|
|
);
|
|
}
|
|
}
|
|
let stream = quote!(
|
|
impl crate::fanbox::check::CheckUnkown for #ident {
|
|
fn check_unknown(&self) -> Result<(), crate::fanbox::error::FanboxAPIError> {
|
|
match self {
|
|
#(#streams)*
|
|
}
|
|
}
|
|
}
|
|
);
|
|
stream.into()
|
|
}
|