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const std = @import("std");
const http = std.http;
const util = @import("util.zig");
pub const Request = @import("request.zig");
pub const Response = @import("response.zig").Response;
pub const ClientOptions = extern struct {
host: [*:0]const u8,
port: u16,
https: bool,
user: ?[*:0]const u8 = null,
password: ?[*:0]const u8 = null,
};
pub const Client = struct {
uri: std.Uri,
allocator: std.mem.Allocator,
http_client: http.Client,
http_headers: http.Headers,
current_session_id: []u8 = "",
pub fn init(allocator: std.mem.Allocator, opts: ClientOptions) Client {
const base_url = std.Uri{
.path = "/transmission/rpc",
.scheme = blk: {
if (opts.https) {
break :blk "https";
} else {
break :blk "http";
}
},
.host = std.mem.span(opts.host),
.port = opts.port,
.user = null,
.password = null,
.query = null,
.fragment = null,
};
return Client{
.uri = base_url,
.allocator = allocator,
.http_client = http.Client{ .allocator = allocator },
.http_headers = http.Headers{ .allocator = allocator },
};
}
pub fn deinit(self: *Client) void {
self.http_headers.deinit();
self.http_client.deinit();
self.allocator.free(self.current_session_id);
}
fn setSessionId(self: *Client, r: http.Client.Response) !void {
self.allocator.free(self.current_session_id);
const session_id = r.headers.getFirstValue("X-Transmission-Session-Id") orelse return error.NoSessionId;
self.current_session_id = try std.fmt.allocPrint(self.allocator, "{s}", .{session_id});
}
fn newRequest(self: *Client) !http.Client.Request {
try self.http_headers.append("X-Transmission-Session-Id", self.current_session_id);
return try self.http_client.request(.POST, self.uri, self.http_headers, .{});
}
pub fn do(self: *Client, req: Request.Object) ![]u8 {
var real_req = try self.newRequest();
defer real_req.deinit();
var payload = std.ArrayList(u8).init(self.allocator);
defer payload.deinit();
try std.json.stringify(req, .{}, payload.writer());
real_req.transfer_encoding = http.Client.RequestTransfer{
.content_length = payload.items.len,
};
try real_req.start();
if (try real_req.write(payload.items) != payload.items.len) {
return error.InvalidSize;
}
try real_req.finish();
try real_req.wait();
if (real_req.response.status == http.Status.conflict) {
try self.setSessionId(real_req.response);
return self.do(req);
}
var body = std.ArrayList(u8).init(self.allocator);
// TODO: making max_append_size this large
// all the time doesn't feel right
try real_req.reader().readAllArrayList(&body, 9000000000);
return body.toOwnedSlice();
}
};
pub fn torrentAdd(client: *Client, r: Request.TorrentAdd) !Response {
const body = try torrentAddRaw(client, r);
defer client.allocator.free(body);
return Response.parseBody(
client.allocator,
Request.Method.@"torrent-add",
body,
null,
);
}
pub fn torrentAddRaw(client: *Client, r: Request.TorrentAdd) ![]u8 {
const body = try client.do(Request.Object{
.method = .@"torrent-add",
.arguments = .{ .@"torrent-add" = r },
});
return body;
}
pub fn torrentGet(client: *Client, r: ?Request.TorrentGet) !Response {
const body = try torrentGetRaw(client, r);
defer client.allocator.free(body);
return Response.parseBody(
client.allocator,
Request.Method.@"torrent-get",
body,
null,
);
}
pub fn torrentGetRaw(client: *Client, r: ?Request.TorrentGet) ![]u8 {
const request = blk: {
if (r == null) {
break :blk Request.Object{
.method = .@"torrent-get",
.arguments = .{
.@"torrent-get" = Request.TorrentGet{
.fields = Request.TorrentGet.all_fields,
},
},
};
} else {
break :blk Request.Object{
.method = .@"torrent-get",
.arguments = .{ .@"torrent-get" = r.? },
};
}
};
const body = try client.do(request);
return body;
}
//pub fn session_get_raw(client: *Client, session_get: ?Request.SessionGet) ![]u8 {
//const default: Request.SessionGet = .{
//.fields = Request.SessionGet.all_fields,
//};
//const r = Request.Object{
//.method = .session_get,
//.arguments = .{ .session_get = session_get orelse default },
//};
//const body = try client.do(r);
//return body;
//}
//pub fn torrent_get_(client: *Client, torrent_get: ?Request.TorrentGet) !Response.Object {
//@setEvalBranchQuota(100000);
//const body = try torrent_get_raw(client, torrent_get);
//const decoded: Response.TorrentGet = try std.json.parseFromSlice(
//Response.TorrentGet,
//client.allocator,
//body,
//std.json.ParseOptions{
//.ignore_unknown_fields = true,
//.duplicate_field_behavior = .@"error",
//},
//);
//return Response.Object.init(.{ .torrent_get = decoded.arguments }, decoded.result);
//}
//pub fn session_set_raw(client: *Client, session_set: Request.SessionSet) ![]u8 {
//const r = Request.Object{
//.method = .session_set,
//.arguments = .{ .session_set = session_set },
//};
//const body = try client.do(r);
//return body;
//}
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