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3f3f45580a
Each of these strings would previously rely on StringView's char const* constructor overload, which would call __builtin_strlen on the string. Since we now have operator ""sv, we can replace these with much simpler versions. This opens the door to being able to remove StringView(char const*). No functional changes.
122 lines
3.8 KiB
C++
122 lines
3.8 KiB
C++
/*
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* Copyright (c) 2021, Ben Wiederhake <BenWiederhake.GitHub@gmx.de>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/JsonArray.h>
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#include <AK/JsonObject.h>
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#include <AK/JsonValue.h>
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#include <AK/Optional.h>
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#include <AK/Random.h>
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#include <AK/Vector.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/DateTime.h>
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#include <LibCore/File.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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class Quote {
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public:
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static Optional<Quote> try_parse(JsonValue const& value)
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{
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if (!value.is_object())
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return {};
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auto& entry = value.as_object();
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Quote q;
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if (!entry.has("quote"sv) || !entry.has("author"sv) || !entry.has("utc_time"sv) || !entry.has("url"sv))
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return {};
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// From here on, trust that it's probably fine.
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q.m_quote = entry.get("quote"sv).as_string();
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q.m_author = entry.get("author"sv).as_string();
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// It is sometimes parsed as u32, sometimes as u64, depending on how large the number is.
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q.m_utc_time = entry.get("utc_time"sv).to_number<u64>();
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q.m_url = entry.get("url"sv).as_string();
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if (entry.has("context"sv))
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q.m_context = entry.get("context"sv).as_string();
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return q;
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}
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String const& quote() const { return m_quote; }
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String const& author() const { return m_author; }
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u64 const& utc_time() const { return m_utc_time; }
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String const& url() const { return m_url; }
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Optional<String> const& context() const { return m_context; }
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private:
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Quote() = default;
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String m_quote;
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String m_author;
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u64 m_utc_time;
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String m_url;
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Optional<String> m_context;
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};
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static Vector<Quote> parse_all(JsonArray const& array)
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{
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Vector<Quote> quotes;
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for (size_t i = 0; i < array.size(); ++i) {
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Optional<Quote> q = Quote::try_parse(array[i]);
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if (!q.has_value()) {
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warnln("WARNING: Could not parse quote #{}!", i);
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} else {
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quotes.append(q.value());
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}
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}
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return quotes;
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}
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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TRY(Core::System::pledge("stdio rpath"));
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char const* path = "/res/fortunes.json";
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Core::ArgsParser args_parser;
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args_parser.set_general_help("Open a fortune cookie, receive a free quote for the day!");
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args_parser.add_positional_argument(path, "Path to JSON file with quotes (/res/fortunes.json by default)", "path", Core::ArgsParser::Required::No);
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args_parser.parse(arguments);
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auto file = TRY(Core::File::open(path, Core::OpenMode::ReadOnly));
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TRY(Core::System::unveil("/etc/timezone", "r"));
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TRY(Core::System::unveil(nullptr, nullptr));
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auto file_contents = file->read_all();
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auto json = TRY(JsonValue::from_string(file_contents));
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if (!json.is_array()) {
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warnln("{} does not contain an array of quotes", path);
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return 1;
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}
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auto const quotes = parse_all(json.as_array());
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if (quotes.is_empty()) {
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warnln("{} does not contain any valid quotes", path);
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return 1;
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}
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u32 i = get_random_uniform(quotes.size());
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auto const& chosen_quote = quotes[i];
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auto datetime = Core::DateTime::from_timestamp(chosen_quote.utc_time());
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outln(); // Tasteful spacing
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out("\033]8;;{}\033\\", chosen_quote.url()); // Begin link
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out("\033[34m({})\033[m", datetime.to_string()); // Datetime
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out(" \033[34;1m<{}>\033[m", chosen_quote.author()); // Author
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out(" \033[32m{}\033[m", chosen_quote.quote()); // Quote itself
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out("\033]8;;\033\\"); // End link
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outln();
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if (chosen_quote.context().has_value())
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outln("\033[38;5;242m({})\033[m", chosen_quote.context().value()); // Some context
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outln(); // Tasteful spacing
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return 0;
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}
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