Use template responses
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GPG key ID:
72E154B8622EC191
6 changed files with 79 additions and 105 deletions
119
fhost.py
119
fhost.py
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@ -19,12 +19,12 @@
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and limitations under the License.
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"""
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from flask import Flask, abort, escape, make_response, redirect, request, send_from_directory, url_for, Response
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from flask import Flask, abort, make_response, redirect, request, send_from_directory, url_for, Response, render_template
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from flask_sqlalchemy import SQLAlchemy
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from flask_script import Manager
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from flask_migrate import Migrate, MigrateCommand
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from jinja2.exceptions import *
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from hashlib import sha256
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from humanize import naturalsize
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from magic import Magic
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from mimetypes import guess_extension
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import os, sys
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@ -192,7 +192,7 @@ def store_file(f, addr):
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if existing:
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if existing.removed:
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return legal()
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abort(451)
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epath = getpath(existing.sha256)
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@ -256,7 +256,7 @@ def store_file(f, addr):
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def store_url(url, addr):
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if is_fhost_url(url):
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return segfault(508)
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abort(400)
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h = { "Accept-Encoding" : "identity" }
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r = requests.get(url, stream=True, verify=False, headers=h)
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@ -277,12 +277,9 @@ def store_url(url, addr):
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return store_file(f, addr)
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else:
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hl = naturalsize(l, binary = True)
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hml = naturalsize(app.config["MAX_CONTENT_LENGTH"], binary=True)
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return "Remote file too large ({0} > {1}).\n".format(hl, hml), 413
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abort(413)
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else:
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return "Could not determine remote file size (no Content-Length in response header; shoot admin).\n", 411
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abort(411)
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@app.route("/<path:path>")
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def get(path):
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@ -294,7 +291,7 @@ def get(path):
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if f and f.ext == p[1]:
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if f.removed:
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return legal()
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abort(451)
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fpath = getpath(f.sha256)
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@ -351,76 +348,7 @@ def fhost():
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abort(400)
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else:
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fmts = list(app.config["FHOST_EXT_OVERRIDE"])
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fmts.sort()
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maxsize = naturalsize(app.config["MAX_CONTENT_LENGTH"], binary=True)
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maxsizenum, maxsizeunit = maxsize.split(" ")
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maxsizenum = float(maxsizenum)
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maxsizehalf = maxsizenum / 2
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if maxsizenum.is_integer():
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maxsizenum = int(maxsizenum)
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if maxsizehalf.is_integer():
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maxsizehalf = int(maxsizehalf)
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return """<pre>
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THE NULL POINTER
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================
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HTTP POST files here:
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curl -F'file=@yourfile.png' {0}
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You can also POST remote URLs:
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curl -F'url=http://example.com/image.jpg' {0}
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Or you can shorten URLs:
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curl -F'shorten=http://example.com/some/long/url' {0}
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File URLs are valid for at least 30 days and up to a year (see below).
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Shortened URLs do not expire.
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Maximum file size: {1}
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Not allowed: {5}
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FILE RETENTION PERIOD
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---------------------
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retention = min_age + (-max_age + min_age) * pow((file_size / max_size - 1), 3)
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days
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365 | \\
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| ..
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| \\
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197.5 | ----------..-------------------------------------------
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| ..
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| \\
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| ..
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| ...
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| ..
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| ...
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| ....
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30 | ....................
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0{2}{3}
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{4}
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ABUSE
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-----
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If you would like to request permanent deletion, please contact lachs0r via
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IRC on Freenode, or send an email to lachs0r@(this domain).
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Please allow up to 24 hours for a response.
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</pre>
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""".format(fhost_url(),
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maxsize, str(maxsizehalf).rjust(27), str(maxsizenum).rjust(27),
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maxsizeunit.rjust(54),
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", ".join(app.config["FHOST_MIME_BLACKLIST"]))
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return render_template("index.html")
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@app.route("/robots.txt")
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def robots():
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@ -428,35 +356,18 @@ def robots():
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Disallow: /
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"""
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def legal():
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return "451 Unavailable For Legal Reasons\n", 451
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@app.errorhandler(400)
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@app.errorhandler(404)
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@app.errorhandler(411)
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@app.errorhandler(413)
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@app.errorhandler(414)
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@app.errorhandler(415)
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def segfault(e):
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@app.errorhandler(451)
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def ehandler(e):
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try:
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return render_template(f"{e.code}.html", id=id), e.code
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except TemplateNotFound:
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return "Segmentation fault\n", e.code
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@app.errorhandler(404)
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def notfound(e):
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return u"""<pre>Process {0} stopped
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* thread #1: tid = {0}, {1:#018x}, name = '{2}'
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frame #0:
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Process {0} stopped
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* thread #8: tid = {0}, {3:#018x} fhost`get(path='{4}') + 27 at fhost.c:139, name = 'fhost/responder', stop reason = invalid address (fault address: 0x30)
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frame #0: {3:#018x} fhost`get(path='{4}') + 27 at fhost.c:139
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136 get(SrvContext *ctx, const char *path)
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137 {{
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138 StoredObj *obj = ctx->store->query(shurl_debase(path));
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-> 139 switch (obj->type) {{
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140 case ObjTypeFile:
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141 ctx->serve_file_id(obj->id);
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142 break;
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(lldb) q</pre>
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""".format(os.getpid(), id(app), "fhost", id(get), escape(request.path)), e.code
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@manager.command
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def debug():
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app.config["FHOST_USE_X_ACCEL_REDIRECT"] = False
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app.run(debug=True, port=4562,host="0.0.0.0")
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15
templates/404.html
Normal file
15
templates/404.html
Normal file
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@ -0,0 +1,15 @@
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{% set pid = range(20,100)|random %}
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<pre>Process {{ pid }} stopped
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* thread #1: tid = {{ pid }}, {{ "{:#018x}".format(id(g)) }}, name = 'fhost'
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frame #0:
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Process {{ pid }} stopped
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* thread #8: tid = {{ pid }}, {{ "{:#018x}".format(id(request)) }} fhost`get(path='{{ request.path }}') + 27 at fhost.c:139, name = 'fhost/responder', stop reason = invalid address (fault address: 0x30)
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frame #0: {3:#018x} fhost`get(path='{{ request.path }}') + 27 at fhost.c:139
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136 get(SrvContext *ctx, const char *path)
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137 {
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138 StoredObj *obj = ctx->store->query(shurl_debase(path));
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-> 139 switch (obj->type) {
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140 case ObjTypeFile:
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141 ctx->serve_file_id(obj->id);
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142 break;
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(lldb) q</pre>
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1
templates/411.html
Normal file
1
templates/411.html
Normal file
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@ -0,0 +1 @@
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Could not determine remote file size (no Content-Length in response header; shoot admin).
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1
templates/413.html
Normal file
1
templates/413.html
Normal file
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@ -0,0 +1 @@
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Remote file too large ({{ request.headers["content-length"]|filesizeformat(True) }} > {{ config["MAX_CONTENT_LENGTH"]|filesizeformat(True) }}).
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1
templates/451.html
Normal file
1
templates/451.html
Normal file
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@ -0,0 +1 @@
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451 Unavailable For Legal Reasons
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45
templates/index.html
Normal file
45
templates/index.html
Normal file
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@ -0,0 +1,45 @@
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<pre>
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THE NULL POINTER
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================
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{% set fhost_url = url_for("fhost", _external=True).rstrip("/") %}
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HTTP POST files here:
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curl -F'file=@yourfile.png' {{ fhost_url }}
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You can also POST remote URLs:
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curl -F'url=http://example.com/image.jpg' {{ fhost_url }}
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Or you can shorten URLs:
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curl -F'shorten=http://example.com/some/long/url' {{ fhost_url }}
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File URLs are valid for at least 30 days and up to a year (see below).
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Shortened URLs do not expire.
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{% set max_size = config["MAX_CONTENT_LENGTH"]|filesizeformat(True) %}
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Maximum file size: {{ max_size }}
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Not allowed: {{ config["FHOST_MIME_BLACKLIST"]|join(", ") }}
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FILE RETENTION PERIOD
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---------------------
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retention = min_age + (-max_age + min_age) * pow((file_size / max_size - 1), 3)
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days
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365 | \\
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197.5 | ----------..-------------------------------------------
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30 | ....................
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0{{ ((config["MAX_CONTENT_LENGTH"]/2)|filesizeformat(True)).split(" ")[0].rjust(27) }}{{ max_size.split(" ")[0].rjust(27) }}
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{{ max_size.split(" ")[1].rjust(54) }}
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</pre>
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