58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
#pragma once
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#include <stdexcept>
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#include "session/types.hpp"
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namespace session::config {
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// Profile pic info.
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struct profile_pic {
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static constexpr size_t MAX_URL_LENGTH = 223;
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std::string url;
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ustring key;
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static void check_key(ustring_view key) {
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if (!(key.empty() || key.size() == 32))
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throw std::invalid_argument{"Invalid profile pic key: 32 bytes required"};
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}
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// Default constructor, makes an empty profile pic
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profile_pic() = default;
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// Constructs from a URL and key. Key must be empty or 32 bytes.
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profile_pic(std::string_view url, ustring_view key) : url{url}, key{key} {
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check_key(this->key);
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}
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// Constructs from a string/ustring pair moved into the constructor
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profile_pic(std::string&& url, ustring&& key) : url{std::move(url)}, key{std::move(key)} {
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check_key(this->key);
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}
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// Returns true if either url or key are empty (or invalid)
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bool empty() const { return url.empty() || key.size() != 32; }
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// Clears the current url/key, if set. This is just a shortcut for calling `.clear()` on each
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// of them.
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void clear() {
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url.clear();
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key.clear();
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}
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// The object in boolean context is true if url and key are both set, i.e. the opposite of
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// `empty()`.
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explicit operator bool() const { return !empty(); }
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// Sets and validates the key. The key can be empty, or 32 bytes. This is almost the same as
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// just setting `.key` directly, except that it will throw if the provided key is invalid (i.e.
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// neither empty nor 32 bytes).
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void set_key(ustring new_key) {
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check_key(new_key);
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key = std::move(new_key);
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}
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};
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} // namespace session::config
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