Starting server and forwarding it to onion works

dragonion_server/utils/core/strings.py

@@ -0,0 +1,52 @@
+import os
+import hashlib
+import base64
+import time
+
+
+def random_string(num_bytes, output_len=None):
+    b = os.urandom(num_bytes)
+    h = hashlib.sha256(b).digest()[:16]
+    s = base64.b32encode(h).lower().replace(b"=", b"").decode("utf-8")
+    if not output_len:
+        return s
+    return s[:output_len]
+
+
+def human_readable_filesize(b):
+    thresh = 1024.0
+    if b < thresh:
+        return "{:.1f} B".format(b)
+    units = ("KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB")
+    u = 0
+    b /= thresh
+    while b >= thresh:
+        b /= thresh
+        u += 1
+    return "{:.1f} {}".format(b, units[u])
+
+
+def format_seconds(seconds):
+    days, seconds = divmod(seconds, 86400)
+    hours, seconds = divmod(seconds, 3600)
+    minutes, seconds = divmod(seconds, 60)
+
+    human_readable = []
+    if days:
+        human_readable.append("{:.0f}d".format(days))
+    if hours:
+        human_readable.append("{:.0f}h".format(hours))
+    if minutes:
+        human_readable.append("{:.0f}m".format(minutes))
+    if seconds or not human_readable:
+        human_readable.append("{:.0f}s".format(seconds))
+    return "".join(human_readable)
+
+
+def estimated_time_remaining(bytes_downloaded, total_bytes, started):
+    now = time.time()
+    time_elapsed = now - started
+    download_rate = bytes_downloaded / time_elapsed
+    remaining_bytes = total_bytes - bytes_downloaded
+    eta = remaining_bytes / download_rate
+    return format_seconds(eta)