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const std = @import("std");
const Storage = @import("root.zig");
const log = std.log.scoped(.user);
const Self = @This();
pub const Info = struct {
name: []const u8,
full_name: []const u8,
birthday: []const u8,
hash: []const u8,
is_admin: bool,
pub fn clone(self: *const @This(), allocator: std.mem.Allocator) !@This() {
var clone_self: @This() = undefined;
var i: usize = 0;
inline for (std.meta.fields(@This())) |field_info| {
if (field_info.type == []const u8) {
@field(clone_self, field_info.name) = try allocator.dupe(
u8,
@field(self, field_info.name),
);
errdefer allocator.free(@field(clone_self, field_info.name));
} else {
@field(clone_self, field_info.name) = @field(self, field_info.name);
}
i += 1;
}
return clone_self;
}
pub fn deinit(self: *const @This(), allocator: std.mem.Allocator) void {
inline for (std.meta.fields(@This())) |field_info| {
if (field_info.type == []const u8) {
allocator.free(@field(self, field_info.name));
}
}
}
};
dir: std.fs.Dir,
info: Info,
arena: std.heap.ArenaAllocator,
pub fn open(
storage: *Storage,
name: []const u8,
) !Self {
var arena: std.heap.ArenaAllocator = .init(storage.allocator);
errdefer arena.deinit();
const allocator = arena.allocator();
var user_dir = try storage.dir.openDir("user", .{});
defer user_dir.close();
var dir = try user_dir.openDir(name, .{});
errdefer dir.close();
const file = try dir.openFile("info.json", .{ .lock = .shared });
defer file.close();
const content = try file.readToEndAlloc(allocator, std.math.maxInt(usize));
const info = try std.json.parseFromSliceLeaky(Info, allocator, content, .{});
return .{
.dir = dir,
.arena = arena,
.info = info,
};
}
pub fn new(
storage: *Storage,
name: []const u8,
full_name: []const u8,
birthday: []const u8,
password: []const u8,
is_admin: bool,
inner_allocator: std.mem.Allocator
) !Self {
var arena: std.heap.ArenaAllocator = .init(inner_allocator);
const allocator = arena.allocator();
errdefer arena.deinit();
var user_dir = try storage.dir.openDir("user", .{});
defer user_dir.close();
try user_dir.makeDir(name);
var dir = try user_dir.openDir(name, .{});
errdefer dir.close();
var file = try dir.createFile("info.json", .{ .lock = .exclusive });
file.close();
const hash_buf = try allocator.alloc(u8, 256);
const hash = try std.crypto.pwhash.bcrypt.strHash(
password,
.{
.params = .{
.rounds_log = 3,
.silently_truncate_password = false,
},
.encoding = .phc,
},
hash_buf
);
const info: Info = .{
.name = name,
.full_name = full_name,
.birthday = birthday,
.hash = hash,
.is_admin = is_admin,
};
return .{
.dir = dir,
.arena = arena,
.info = info,
};
}
pub fn set_password(self: *Self, password: []const u8) !void {
const allocator = self.arena.allocator();
const hash_buf = try allocator.alloc(u8, 256);
const hash = try std.crypto.pwhash.bcrypt.strHash(
password,
.{
.params = .{
.rounds_log = 3,
.silently_truncate_password = false,
},
.encoding = .phc,
},
hash_buf
);
self.info.hash = hash;
}
pub fn sync(self: *Self) !void {
const file = try self.dir.createFile("info.json", .{
.lock = .exclusive,
});
defer file.close();
var buffer: [1024]u8 = undefined;
var writer = file.writer(&buffer);
var stringify = std.json.Stringify {
.writer = &writer.interface,
.options = .{ .whitespace = .indent_2 }
};
try stringify.write(self.info);
try writer.interface.flush();
}
pub fn check_password(self: *Self, password: []const u8) bool {
std.crypto.pwhash.bcrypt.strVerify(self.info.hash, password, .{
.silently_truncate_password = false,
}) catch return false;
return true;
}
pub fn deinit(self: *Self) void {
self.dir.close();
self.arena.deinit();
self.* = undefined;
}
pub fn exists(storage: *Storage, name: []const u8) bool {
var user = storage.dir.openDir("user", .{}) catch return false;
defer user.close();
user.access(name, .{}) catch return false;
return true;
}
pub fn image(storage: *Storage, name: []const u8) ?std.fs.File {
var user = storage.dir.openDir("user", .{}) catch return null;
defer user.close();
var profile = user.openDir(name, .{}) catch return null;
defer profile.close();
return profile.openFile("image.jpg", .{ .lock = .shared }) catch null;
}
pub fn set_image(
storage: *Storage,
name: []const u8,
reader: *std.Io.Reader,
size: usize,
) !void {
var user = try storage.dir.openDir("user", .{});
defer user.close();
var profile = try user.openDir(name, .{});
defer profile.close();
var image_file = try profile.createFile("image.jpg", .{ .lock = .exclusive });
defer image_file.close();
var buffer: [1024]u8 = undefined;
var file_writer = image_file.writer(&buffer);
log.info("uploaded to profile {s} [{} bytes]", .{ name, size });
try reader.streamExact(&file_writer.interface, size);
try file_writer.interface.flush();
}
pub fn list(
storage: *Storage,
allocator: std.mem.Allocator,
) ![][]const u8 {
var user = try storage.dir.openDir("user", .{ .iterate = true });
defer user.close();
var ids: std.ArrayList([]const u8) = .empty;
var iterator = user.iterate();
while (try iterator.next()) |entry| {
try ids.append(allocator, try allocator.dupe(u8, entry.name));
}
return ids.toOwnedSlice(allocator);
}
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