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use super::{Callback, Resource, Instance, ToStringVar, ToVar, Code};
use super::ppb::{get_url_loader, get_url_request};
use ppb::{URLRequestInfoIf, URLResponseInfoIf, URLLoaderIf};
use std::io::IoResult;
use collections::enum_set::{CLike, EnumSet};
use http;
use http::header::Headers;
use super::ffi;
use super::ffi::bool_to_var;
use iurl::Url;
use fs::FileSliceRef;
#[derive(Hash, Eq, PartialEq, Show)] pub struct UrlLoader(ffi::PP_Resource);
#[derive(Hash, Eq, PartialEq, Show)] pub struct UrlRequestInfo(ffi::PP_Resource);
#[derive(Hash, Eq, PartialEq, Show)] pub struct UrlResponseInfo(ffi::PP_Resource);
impl_resource_for!(UrlLoader, ResourceType::UrlLoaderRes);
impl_resource_for!(UrlRequestInfo, ResourceType::UrlRequestInfoRes);
impl_resource_for!(UrlResponseInfo, ResourceType::UrlResponseInfoRes);
pub type RequestProperties = EnumSet<RequestProperties_>;
#[derive(Eq, PartialEq, Clone, Hash, Copy)]
pub enum RequestProperties_ {
AllowCrossOriginRequests,
AllowCredentials,
RecordUploadProgress,
RecordDownloadProgress,
FollowRedirects,
StreamToFile,
}
impl CLike for RequestProperties_ {
fn to_uint(&self) -> uint {
match self {
&RequestProperties_::AllowCrossOriginRequests => 0,
&RequestProperties_::AllowCredentials => 1,
&RequestProperties_::RecordUploadProgress => 2,
&RequestProperties_::RecordDownloadProgress => 3,
&RequestProperties_::FollowRedirects => 4,
&RequestProperties_::StreamToFile => 5,
}
}
fn from_uint(v: uint) -> RequestProperties_ {
match v {
0 => RequestProperties_::AllowCrossOriginRequests,
1 => RequestProperties_::AllowCredentials,
2 => RequestProperties_::RecordUploadProgress,
3 => RequestProperties_::RecordDownloadProgress,
4 => RequestProperties_::FollowRedirects,
5 => RequestProperties_::StreamToFile,
_ => unreachable!(),
}
}
}
impl RequestProperties_ {
fn to_ffi(&self) -> ffi::PP_URLRequestProperty {
match self {
&RequestProperties_::AllowCrossOriginRequests =>
ffi::PP_URLREQUESTPROPERTY_ALLOWCROSSORIGINREQUESTS,
&RequestProperties_::AllowCredentials =>
ffi::PP_URLREQUESTPROPERTY_ALLOWCREDENTIALS,
&RequestProperties_::RecordUploadProgress =>
ffi::PP_URLREQUESTPROPERTY_RECORDUPLOADPROGRESS,
&RequestProperties_::RecordDownloadProgress =>
ffi::PP_URLREQUESTPROPERTY_RECORDDOWNLOADPROGRESS,
&RequestProperties_::FollowRedirects =>
ffi::PP_URLREQUESTPROPERTY_FOLLOWREDIRECTS,
&RequestProperties_::StreamToFile =>
ffi::PP_URLREQUESTPROPERTY_STREAMTOFILE,
}
}
}
#[derive(Clone)]
pub enum Body {
File(FileSliceRef, Option<super::Time>),
Blob(Vec<u8>),
}
pub type Method = http::method::Method;
#[derive(Clone)]
pub struct RequestInfo {
pub url: Url,
pub method: Method,
pub prefetch_buffer: Option<(i32, i32)>,
properties: RequestProperties,
set_props: RequestProperties,
pub body: Vec<Body>,
pub headers: Headers,
}
impl RequestInfo {
fn clear_bit(bitfield: RequestProperties, prop: RequestProperties_) -> RequestProperties {
let mut new = EnumSet::new();
for p in bitfield
.iter()
.filter(|&p| p != prop ) {
new.insert(p);
}
new
}
pub fn set_prop(&mut self, prop: RequestProperties_, bit: bool) {
self.set_props.insert(prop);
self.set_prop_value(prop, bit);
}
pub fn unset_prop(&mut self, prop: RequestProperties_) -> bool {
let was_set = self.set_props.contains(&prop);
self.set_props = RequestInfo::clear_bit(self.set_props, prop);
was_set
}
pub fn set_prop_value(&mut self, prop: RequestProperties_, bit: bool) -> bool {
let mut new = RequestInfo::clear_bit(self.properties, prop);
if bit {
new.insert(prop);
}
let was_set = self.properties.contains(&prop);
self.properties = new;
was_set
}
pub fn to_ffi(self) -> IoResult<UrlRequestInfo> {
let instance = Instance::current();
let request = get_url_request();
let res = instance.create_url_request_info().unwrap();
let set_true = self.set_props.intersection(self.properties);
let set_false = self.set_props - set_true;
let true_var = unsafe { bool_to_var(1) };
let false_var = unsafe { bool_to_var(0) };
for prop in set_true.iter() {
let set = request.property(res.unwrap(), prop.to_ffi(), true_var);
assert!(set);
}
for prop in set_false.iter() {
let set = request.property(res.unwrap(), prop.to_ffi(), false_var);
assert!(set);
}
let RequestInfo {
body, headers, url, method, ..
} = self;
for body in body.into_iter() {
let success = match body {
Body::File(FileSliceRef(file, start_opt, len_opt), time) => {
request.append_file_to_body(res.unwrap(),
file.unwrap(),
start_opt,
len_opt,
time)
}
Body::Blob(blob) => {
request.append_blob_to_body(res.unwrap(),
&blob)
}
};
assert!(success);
}
let headers_str = headers.to_string();
let headers_str = headers_str.to_string_var();
let success = request.property(res.unwrap(),
ffi::PP_URLREQUESTPROPERTY_HEADERS,
headers_str.to_var());
let url = url.to_string().to_string_var();
let success = success && request.property(res.unwrap(),
ffi::PP_URLREQUESTPROPERTY_URL,
url.to_var());
let method = method.to_string().to_string_var();
let success = success && request.property(res.unwrap(),
ffi::PP_URLREQUESTPROPERTY_METHOD,
method.to_var());
assert!(success);
Ok(res)
}
}
#[derive(Clone, Hash, Eq, PartialEq)]
pub struct OpenedUrlLoader(UrlLoader);
impl OpenedUrlLoader {
fn unwrap_loader<'a>(&'a self) -> &'a UrlLoader {
let &OpenedUrlLoader(ref inner) = self;
inner
}
pub fn download_progress(&self) -> Option<(i64, i64)> {
use std::mem;
let mut bytes_sent = unsafe { mem::uninitialized() };
let mut total_sent = unsafe { mem::uninitialized() };
let f = get_url_loader().GetDownloadProgress.unwrap();
if !f(self.unwrap_loader().unwrap(), &mut bytes_sent, &mut total_sent) != 0 {
None
} else {
Some((bytes_sent as i64, total_sent as i64))
}
}
}
impl Resource for OpenedUrlLoader {
fn unwrap(&self) -> ffi::PP_Resource {
self.unwrap_loader().unwrap()
}
fn type_of(&self) -> super::ResourceType {
self.unwrap_loader().type_of()
}
}
impl UrlLoader {
pub fn open<F: FnOnce<(Code, OpenedUrlLoader),()> + Send>(&self,
ffi_info: UrlRequestInfo,
callback: F) -> super::Result<OpenedUrlLoader> {
let loader = get_url_loader();
let open_loader = OpenedUrlLoader(self.clone());
let open_loader2 = open_loader.clone();
let cb = move |: c: Code| {
callback(c, open_loader2);
};
loader.open(self.unwrap(),
ffi_info.unwrap(),
cb.to_ffi_callback())
.map(|_| open_loader.clone() )
}
}