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PoC confcall invite, emoji.

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This commit is contained in:
John Preston
2025-03-28 22:13:53 +05:00
parent dfe6ad3a32
commit 4401ea388c
11 changed files with 238 additions and 42 deletions
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Telegram/SourceFiles/calls/calls_emoji_fingerprint.cpp
+16 -17
View File
@@ -124,9 +124,23 @@ uint64 ComputeEmojiIndex(bytes::const_span bytes) {
} // namespace
std::vector<EmojiPtr> ComputeEmojiFingerprint(not_null<Call*> call) {
if (!call->isKeyShaForFingerprintReady()) {
return {};
}
return ComputeEmojiFingerprint(call->getKeyShaForFingerprint());
}
std::vector<EmojiPtr> ComputeEmojiFingerprint(
bytes::const_span fingerprint) {
auto result = std::vector<EmojiPtr>();
constexpr auto EmojiCount = (base::array_size(Offsets) - 1);
for (auto index = 0; index != EmojiCount; ++index) {
constexpr auto kPartSize = 8;
for (auto partOffset = 0
; partOffset != fingerprint.size()
; partOffset += kPartSize) {
auto value = ComputeEmojiIndex(
fingerprint.subspan(partOffset, kPartSize));
auto index = value % EmojiCount;
auto offset = Offsets[index];
auto size = Offsets[index + 1] - offset;
auto string = QString::fromRawData(
@@ -134,22 +148,7 @@ std::vector<EmojiPtr> ComputeEmojiFingerprint(not_null<Call*> call) {
size);
auto emoji = Ui::Emoji::Find(string);
Assert(emoji != nullptr);
}
if (call->isKeyShaForFingerprintReady()) {
auto sha256 = call->getKeyShaForFingerprint();
constexpr auto kPartSize = 8;
for (auto partOffset = 0; partOffset != sha256.size(); partOffset += kPartSize) {
auto value = ComputeEmojiIndex(gsl::make_span(sha256).subspan(partOffset, kPartSize));
auto index = value % EmojiCount;
auto offset = Offsets[index];
auto size = Offsets[index + 1] - offset;
auto string = QString::fromRawData(
reinterpret_cast<const QChar*>(Data + offset),
size);
auto emoji = Ui::Emoji::Find(string);
Assert(emoji != nullptr);
result.push_back(emoji);
}
result.push_back(emoji);
}
return result;
}