Misc. bug: Some files cannot be uploaded with the current model.

[DigitalKO]

Name and Version

$./llama-server --version
version: 6503 (62c3b64)
built with cc (Debian 14.2.0-19) 14.2.0 for x86_64-linux-gnu

Since a last update, the web UI is stricter. TeX files that were previously parsed correctly are now unusable.

File Upload Error
Some files cannot be uploaded with the current model.
Unsupported File Types

summary.tex

File type not supported
This model supports:

text files, PDFs

Operating systems

Linux

Which llama.cpp modules do you know to be affected?

llama-server

Command line

Problem description & steps to reproduce

Just upload any text files that do not end with .txt

First Bad Commit

This used to work at least until version: 6295 (86076f9)

Relevant log output

[ngxson]

@allozaur for vis, we used to have this function to detect if the file is likely binary file or text file:

llama.cpp/tools/server/webui/src/components/useChatExtraContext.tsx

Lines 245 to 254 in df082f5

	// WARN: vibe code below
	// This code is a heuristic to determine if a string is likely not binary.
	// It is necessary because input file can have various mime types which we don't have time to investigate.
	// For example, a python file can be text/plain, application/x-python, etc.
	function isLikelyNotBinary(str: string): boolean {
	const options = {
	prefixLength: 1024 * 10, // Check the first 10KB of the string
	suspiciousCharThresholdRatio: 0.15, // Allow up to 15% suspicious chars
	maxAbsoluteNullBytes: 2,
	};

This is useful where we don't know all the text-like file extensions