Rework file ID generation

This commit is contained in:
Jeremy Lin 2021-05-25 23:15:24 -07:00
parent 5fef7983f4
commit c2ef331df9
3 changed files with 15 additions and 5 deletions

View file

@ -808,7 +808,7 @@ fn post_attachment_v2(
err!("Cipher is not write accessible") err!("Cipher is not write accessible")
} }
let attachment_id = crypto::generate_file_id(); let attachment_id = crypto::generate_attachment_id();
let data: AttachmentRequestData = data.into_inner().data; let data: AttachmentRequestData = data.into_inner().data;
let attachment = let attachment =
Attachment::new(attachment_id.clone(), cipher.uuid.clone(), data.FileName, data.FileSize, Some(data.Key)); Attachment::new(attachment_id.clone(), cipher.uuid.clone(), data.FileName, data.FileSize, Some(data.Key));
@ -912,7 +912,7 @@ fn save_attachment(
// In the v2 API, we use the value from post_attachment_v2(). // In the v2 API, we use the value from post_attachment_v2().
let file_id = match &attachment { let file_id = match &attachment {
Some(attachment) => attachment.id.clone(), // v2 API Some(attachment) => attachment.id.clone(), // v2 API
None => crypto::generate_file_id(), // Legacy API None => crypto::generate_attachment_id(), // Legacy API
}; };
path = base_path.join(&file_id); path = base_path.join(&file_id);

View file

@ -173,7 +173,7 @@ fn post_send_file(data: Data, content_type: &ContentType, headers: Headers, conn
// Create the Send // Create the Send
let mut send = create_send(data.data, headers.user.uuid.clone())?; let mut send = create_send(data.data, headers.user.uuid.clone())?;
let file_id = crate::crypto::generate_file_id(); let file_id = crate::crypto::generate_send_id();
if send.atype != SendType::File as i32 { if send.atype != SendType::File as i32 {
err!("Send content is not a file"); err!("Send content is not a file");

View file

@ -51,8 +51,18 @@ pub fn get_random(mut array: Vec<u8>) -> Vec<u8> {
array array
} }
pub fn generate_file_id() -> String { pub fn generate_id(num_bytes: usize) -> String {
HEXLOWER.encode(&get_random(vec![0; 16])) // 128 bits HEXLOWER.encode(&get_random(vec![0; num_bytes]))
}
pub fn generate_send_id() -> String {
// Send IDs are globally scoped, so make them longer to avoid collisions.
generate_id(32) // 256 bits
}
pub fn generate_attachment_id() -> String {
// Attachment IDs are scoped to a cipher, so they can be smaller.
generate_id(10) // 80 bits
} }
pub fn generate_token(token_size: u32) -> Result<String, Error> { pub fn generate_token(token_size: u32) -> Result<String, Error> {