Merge f6a616f23b into 1298e9c398

dangerzone/isolation_provider/base.py

@@ -20,6 +20,7 @@ from ..util import get_tessdata_dir, replace_control_chars
 
 log = logging.getLogger(__name__)
 
+MAX_CONVERSION_LOG_CHARS = 150 * 50  # up to ~150 lines of 50 characters
 DOC_TO_PIXELS_LOG_START = "----- DOC TO PIXELS LOG START -----"
 DOC_TO_PIXELS_LOG_END = "----- DOC TO PIXELS LOG END -----"
 
@@ -76,7 +77,7 @@ def read_int(f: IO[bytes]) -> int:
     return int.from_bytes(untrusted_int, "big", signed=False)
 
 
-def sanitize_debug_text(text: bytes) -> str:
+def read_debug_text(text: bytes) -> str:
     """Read all the buffer and return a sanitized version"""
     untrusted_text = text.decode("ascii", errors="replace")
     return replace_control_chars(untrusted_text, keep_newlines=True)
@@ -357,7 +358,7 @@ class IsolationProvider(ABC):
                 stderr_thread.join(timeout=1)
 
                 debug_bytes = stderr.getvalue()
-                debug_log = sanitize_debug_text(debug_bytes)
+                debug_log = read_debug_text(debug_bytes)[:MAX_CONVERSION_LOG_CHARS]
 
                 incomplete = "(incomplete)\n" if stderr_thread.is_alive() else ""