sas: Return an array of seven emojis instead of a vector
parent
dea3d4cb68
commit
80d01b23c4
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@ -112,7 +112,7 @@ impl Sas {
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}
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/// Get the emoji version of the short auth string.
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pub fn emoji(&self) -> Option<Vec<(&'static str, &'static str)>> {
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pub fn emoji(&self) -> Option<[(&'static str, &'static str); 7]> {
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self.inner.emoji()
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}
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@ -402,7 +402,7 @@ fn extra_info_sas(
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/// Get the emoji version of the short authentication string.
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///
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/// Returns a vector of tuples where the first element is the emoji and the
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/// Returns seven tuples where the first element is the emoji and the
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/// second element the English description of the emoji.
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///
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/// # Arguments
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@ -425,7 +425,7 @@ pub fn get_emoji(
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their_pubkey: &str,
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flow_id: &str,
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we_started: bool,
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) -> Vec<(&'static str, &'static str)> {
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) -> [(&'static str, &'static str); 7] {
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let bytes = sas
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.generate_bytes(
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&extra_info_sas(&ids, &sas.public_key(), their_pubkey, &flow_id, we_started),
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@ -436,7 +436,7 @@ pub fn get_emoji(
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bytes_to_emoji(bytes)
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}
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fn bytes_to_emoji_index(bytes: Vec<u8>) -> Vec<u8> {
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fn bytes_to_emoji_index(bytes: Vec<u8>) -> [u8; 7] {
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let bytes: Vec<u64> = bytes.iter().map(|b| *b as u64).collect();
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// Join the 6 bytes into one 64 bit unsigned int. This u64 will contain 48
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// bits from our 6 bytes.
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@ -449,7 +449,7 @@ fn bytes_to_emoji_index(bytes: Vec<u8>) -> Vec<u8> {
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// Take the top 42 bits of our 48 bits from the u64 and convert each 6 bits
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// into a 6 bit number.
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vec![
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[
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((num >> 42) & 63) as u8,
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((num >> 36) & 63) as u8,
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((num >> 30) & 63) as u8,
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@ -460,11 +460,19 @@ fn bytes_to_emoji_index(bytes: Vec<u8>) -> Vec<u8> {
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]
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}
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fn bytes_to_emoji(bytes: Vec<u8>) -> Vec<(&'static str, &'static str)> {
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fn bytes_to_emoji(bytes: Vec<u8>) -> [(&'static str, &'static str); 7] {
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let numbers = bytes_to_emoji_index(bytes);
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// Convert the 6 bit number into a emoji/description tuple.
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numbers.into_iter().map(emoji_from_index).collect()
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[
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emoji_from_index(numbers[0]),
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emoji_from_index(numbers[1]),
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emoji_from_index(numbers[2]),
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emoji_from_index(numbers[3]),
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emoji_from_index(numbers[4]),
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emoji_from_index(numbers[5]),
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emoji_from_index(numbers[6]),
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]
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}
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/// Get the decimal version of the short authentication string.
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@ -584,7 +592,7 @@ mod test {
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.into_iter()
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.map(emoji_from_index)
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.collect();
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assert_eq!(bytes_to_emoji(bytes), index);
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assert_eq!(bytes_to_emoji(bytes), index.as_ref());
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let bytes = vec![0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF];
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@ -592,7 +600,7 @@ mod test {
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.into_iter()
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.map(emoji_from_index)
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.collect();
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assert_eq!(bytes_to_emoji(bytes), index);
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assert_eq!(bytes_to_emoji(bytes), index.as_ref());
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}
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#[test]
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@ -612,8 +620,8 @@ mod test {
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fn proptest_emoji(bytes in prop::array::uniform6(0u8..)) {
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let numbers = bytes_to_emoji_index(bytes.to_vec());
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for number in numbers {
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prop_assert!(number < 64);
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for number in numbers.iter() {
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prop_assert!(*number < 64);
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}
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}
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}
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@ -343,7 +343,7 @@ impl InnerSas {
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}
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}
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pub fn emoji(&self) -> Option<Vec<(&'static str, &'static str)>> {
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pub fn emoji(&self) -> Option<[(&'static str, &'static str); 7]> {
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match self {
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InnerSas::KeyRecieved(s) => Some(s.get_emoji()),
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InnerSas::MacReceived(s) => Some(s.get_emoji()),
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@ -627,9 +627,9 @@ impl Sas {
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/// Get the emoji version of the short auth string.
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///
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/// Returns None if we can't yet present the short auth string, otherwise a
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/// Vec of tuples with the emoji and description.
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pub fn emoji(&self) -> Option<Vec<(&'static str, &'static str)>> {
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/// Returns None if we can't yet present the short auth string, otherwise
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/// seven tuples containing the emoji and description.
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pub fn emoji(&self) -> Option<[(&'static str, &'static str); 7]> {
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self.inner.lock().unwrap().emoji()
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}
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@ -745,9 +745,9 @@ impl SasState<KeyReceived> {
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/// Get the emoji version of the short authentication string.
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///
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/// Returns a vector of tuples where the first element is the emoji and the
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/// Returns a seven tuples where the first element is the emoji and the
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/// second element the English description of the emoji.
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pub fn get_emoji(&self) -> Vec<(&'static str, &'static str)> {
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pub fn get_emoji(&self) -> [(&'static str, &'static str); 7] {
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get_emoji(
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&self.inner.lock().unwrap(),
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&self.ids,
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@ -968,7 +968,7 @@ impl SasState<MacReceived> {
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///
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/// Returns a vector of tuples where the first element is the emoji and the
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/// second element the English description of the emoji.
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pub fn get_emoji(&self) -> Vec<(&'static str, &'static str)> {
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pub fn get_emoji(&self) -> [(&'static str, &'static str); 7] {
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get_emoji(
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&self.inner.lock().unwrap(),
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&self.ids,
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