Issue when only http.group.file.name is set

[braffes]

Hi,

I encountered an issue with the following configuration for the bank jaspar.elixir.no/download/data/2024/pfm:

http.group.file.name=1
http.group.file.size=-1
http.group.file.date=-1

Normally, the output of this code is a list of tuples. However, in my case, with only one matching pattern, it becomes just a list.

biomaj-download/biomaj_download/download/curl.py

Line 568 in b23668c

files = re.findall(self.http_parse.file_line, result)

Thus, with the old code the filename became M instead of MA089D.012.2.pfm

biomaj-download/biomaj_download/download/curl.py

Line 604 in b23668c

rfile['name'] = foundfile[self.http_parse.file_name - 1]

I created a small reproducer:

import re

# Example HTML content
html_content = '''
<li><a href="example4.pfm">MA089D.012.2.pfm</a></li>
'''
# Regular expression pattern
pattern = r'<li><a href=".*?">(MA089.*\.2\.pfm)</a>(</li>)'
# Find all matches
matches = re.findall(pattern, html_content)
print("Double pattern")
print(matches)

pattern = r'<li><a href=".*?">(MA089.*\.2\.pfm)</a></li>'
matches = re.findall(pattern, html_content)
print("Simple pattern")
print(matches)

The output will be:

double pattern
[('MA089D.012.2.pfm', '</li>')]
simple pattern
['MA089D.012.2.pfm']

So, to avoid this issue, I just check if it is a tuple, and if it's not, I assume that we only have the filename.

Best,
Brice