clean up VLC-related code
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a7ca2f9377
commit
6ce0d30b4c
1 changed files with 137 additions and 84 deletions
221
src/main.zig
221
src/main.zig
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@ -1,5 +1,4 @@
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const std = @import("std");
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const xml = @import("./xml.zig");
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// Music Player:
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// - Launch VLC and control it via HTTP interface
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@ -20,16 +19,8 @@ pub fn main() !void {
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defer _ = gpa.deinit();
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const allocator = gpa.allocator();
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// var vlc = std.process.Child.init(&[_][]const u8{
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// "vlc",
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// "--intf",
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// "http",
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// "--http-host",
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// "localhost",
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// "--http-password",
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// "1234",
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// }, allocator);
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// try vlc.spawn();
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var vlc = try VLC.init(allocator, try std.Uri.parse("http://localhost:8080"));
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defer vlc.deinit();
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var tz_file = try std.fs.openFileAbsolute("/etc/localtime", .{});
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defer tz_file.close();
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@ -38,25 +29,24 @@ pub fn main() !void {
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while (true) : (std.time.sleep(1_000_000_000)) { // sleep 500ms
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try updateTime(tz);
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try updateStatus(allocator);
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try updateStatus(allocator, &vlc);
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scroll += 1;
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}
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// try vlc.kill();
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}
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const base64_encoder = std.base64.standard.Encoder;
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// TODO make the URL something short like jeevio.xyz/streamboy
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const topic = "Something Fun For Everyone With Streamboy!!!!!!!! git.jeevio.xyz/jeeves/streamboy";
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var scroll: usize = 0;
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fn updateStatus(allocator: std.mem.Allocator) !void {
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fn updateStatus(allocator: std.mem.Allocator, vlc: *VLC) !void {
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var stream_info_file = try std.fs.createFileAbsolute("/tmp/streaminfo", .{ .truncate = true });
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defer stream_info_file.close();
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var song_info = try getSongInfo(allocator);
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defer song_info.deinit(allocator);
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var song_info = try vlc.getSongInfo();
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defer song_info.deinit();
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const string = try std.fmt.allocPrint(allocator, "{s} | ♪ {s} - {s} | ", .{
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topic,
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@ -72,91 +62,154 @@ fn updateStatus(allocator: std.mem.Allocator) !void {
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}
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}
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const SongInfo = struct {
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title: ?[]const u8,
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album: ?[]const u8,
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artist: ?[]const u8,
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pub const VLC = struct {
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allocator: std.mem.Allocator,
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http: std.http.Client,
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base_uri: std.Uri,
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authorization: []u8,
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pub fn deinit(self: *SongInfo, allocator: std.mem.Allocator) void {
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if (self.title) |b| allocator.free(b);
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if (self.album) |b| allocator.free(b);
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if (self.artist) |b| allocator.free(b);
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pub fn init(allocator: std.mem.Allocator, base_uri: std.Uri) !VLC {
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const userpass = try std.fmt.allocPrint(allocator, ":{s}", .{"1234"});
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defer allocator.free(userpass);
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const base64_userpass = try allocator.alloc(u8, base64_encoder.calcSize(userpass.len));
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defer allocator.free(base64_userpass);
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const authorization = try std.fmt.allocPrint(allocator, "Basic {s}", .{base64_encoder.encode(base64_userpass, userpass)});
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errdefer allocator.free(authorization);
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// var vlc = std.process.Child.init(&[_][]const u8{
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// "vlc",
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// "--intf",
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// "http",
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// "--http-host",
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// "localhost",
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// "--http-password",
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// "1234",
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// }, allocator);
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// try vlc.spawn();
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return .{
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.allocator = allocator,
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.http = std.http.Client{ .allocator = allocator },
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.base_uri = base_uri,
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.authorization = authorization,
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};
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}
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};
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fn getSongInfo(allocator: std.mem.Allocator) !SongInfo {
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var http = std.http.Client{ .allocator = allocator };
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defer http.deinit();
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pub fn deinit(self: *VLC) void {
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self.http.deinit();
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self.allocator.free(self.authorization);
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// try vlc.kill();
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}
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const userpass = try std.fmt.allocPrint(allocator, ":{s}", .{"1234"});
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defer allocator.free(userpass);
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fn request(self: *VLC, uri: std.Uri) !Response {
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var combined_uri = self.base_uri;
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combined_uri.path = uri.path;
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combined_uri.query = uri.query;
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combined_uri.fragment = uri.fragment;
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const base64_userpass = try allocator.alloc(u8, base64_encoder.calcSize(userpass.len));
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defer allocator.free(base64_userpass);
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var response = std.ArrayList(u8).init(self.allocator);
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defer response.deinit();
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const final_userpass = try std.fmt.allocPrint(allocator, "Basic {s}", .{base64_encoder.encode(base64_userpass, userpass)});
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defer allocator.free(final_userpass);
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const result = try self.http.fetch(.{
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.location = .{ .uri = combined_uri },
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.headers = .{ .authorization = .{ .override = self.authorization } },
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.response_storage = .{ .dynamic = &response },
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});
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var response = std.ArrayList(u8).init(allocator);
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defer response.deinit();
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// std.debug.print("{any}\n{s}\n", .{ result, response.items });
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const result = try http.fetch(.{
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.location = .{ .url = "http://localhost:8080/requests/status.xml" },
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.headers = .{ .authorization = .{ .override = final_userpass } },
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.response_storage = .{ .dynamic = &response },
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});
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if (result.status != .ok) return error.HttpRequestFailed;
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std.debug.print("{any}\n{s}\n", .{ result, response.items });
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const buffer = try response.toOwnedSlice();
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return .{
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.buffer = buffer,
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.document = try xml.parse(self.allocator, buffer),
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};
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}
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const document = try xml.parse(allocator, response.items);
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defer document.deinit();
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const Response = struct {
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buffer: []u8,
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document: xml.Document,
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var title: ?[]const u8 = null;
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var album: ?[]const u8 = null;
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var artist: ?[]const u8 = null;
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pub fn deinit(self: *Response, allocator: std.mem.Allocator) void {
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self.document.deinit();
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allocator.free(self.buffer);
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}
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};
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if (document.root.findChildByTag("information")) |information| {
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var categories_it = information.findChildrenByTag("category");
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while (categories_it.next()) |category| {
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if (std.mem.eql(u8, category.getAttribute("name").?, "meta")) {
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var info_it = category.findChildrenByTag("info");
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while (info_it.next()) |info| {
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const info_name = info.getAttribute("name").?;
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if (std.mem.eql(u8, info_name, "title"))
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title = try processHtmlString(allocator, info.children[0].char_data)
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else if (std.mem.eql(u8, info_name, "album"))
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album = try processHtmlString(allocator, info.children[0].char_data)
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else if (std.mem.eql(u8, info_name, "artist"))
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artist = try processHtmlString(allocator, info.children[0].char_data);
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pub const SongInfo = struct {
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allocator: std.mem.Allocator,
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title: ?[]const u8,
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album: ?[]const u8,
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artist: ?[]const u8,
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// TODO move allocator into struct
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pub fn deinit(self: *SongInfo) void {
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if (self.title) |b| self.allocator.free(b);
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if (self.album) |b| self.allocator.free(b);
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if (self.artist) |b| self.allocator.free(b);
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}
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};
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pub fn getSongInfo(self: *VLC) !SongInfo {
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var response = try self.request(.{ .scheme = "http", .path = .{ .percent_encoded = "/requests/status.xml" } });
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defer response.deinit(self.allocator);
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// std.debug.print("{s}\n", .{response.buffer});
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var title: ?[]const u8 = null;
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var album: ?[]const u8 = null;
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var artist: ?[]const u8 = null;
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if (response.document.root.findChildByTag("information")) |information| {
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var categories_it = information.findChildrenByTag("category");
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while (categories_it.next()) |category| {
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if (std.mem.eql(u8, category.getAttribute("name").?, "meta")) {
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var info_it = category.findChildrenByTag("info");
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while (info_it.next()) |info| {
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const info_name = info.getAttribute("name").?;
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if (std.mem.eql(u8, info_name, "title"))
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title = try processHtmlString(self, info.children[0].char_data)
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else if (std.mem.eql(u8, info_name, "album"))
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album = try processHtmlString(self, info.children[0].char_data)
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else if (std.mem.eql(u8, info_name, "artist"))
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artist = try processHtmlString(self, info.children[0].char_data);
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}
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}
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}
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}
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return .{
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.allocator = self.allocator,
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.title = title,
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.album = album,
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.artist = artist,
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};
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}
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return .{
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.title = title,
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.album = album,
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.artist = artist,
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};
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}
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fn processHtmlString(allocator: std.mem.Allocator, string: []const u8) ![]const u8 {
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var new: []u8 = try allocator.dupe(u8, string);
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errdefer allocator.free(new);
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while (true) {
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if (std.mem.indexOf(u8, new, "&#")) |amp| {
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if (std.mem.indexOfScalarPos(u8, new, amp, ';')) |semi| {
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const int = try std.fmt.parseInt(u8, new[amp + 2 .. semi], 10);
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const nnew = try allocator.alloc(u8, std.mem.replacementSize(u8, new, new[amp .. semi + 1], &[1]u8{int}));
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_ = std.mem.replace(u8, new, new[amp .. semi + 1], &[1]u8{int}, nnew);
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allocator.free(new);
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new = nnew;
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}
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} else break;
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// TODO clean up
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fn processHtmlString(self: *VLC, string: []const u8) ![]const u8 {
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var new: []u8 = try self.allocator.dupe(u8, string);
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errdefer self.allocator.free(new);
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while (true) {
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if (std.mem.indexOf(u8, new, "&#")) |amp| {
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if (std.mem.indexOfScalarPos(u8, new, amp, ';')) |semi| {
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const int = try std.fmt.parseInt(u8, new[amp + 2 .. semi], 10);
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const nnew = try self.allocator.alloc(u8, std.mem.replacementSize(u8, new, new[amp .. semi + 1], &[1]u8{int}));
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_ = std.mem.replace(u8, new, new[amp .. semi + 1], &[1]u8{int}, nnew);
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self.allocator.free(new);
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new = nnew;
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}
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} else break;
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}
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// std.debug.print("{s}\n", .{new});
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return new;
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}
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std.debug.print("{s}\n", .{new});
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return new;
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}
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const xml = @import("./xml.zig");
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};
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fn updateTime(tz: std.Tz) !void {
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const original_timestamp = std.time.timestamp();
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