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HTTP header improvements #294

Merged
floatingghost merged 5 commits from :http-header-improvements into develop 2022-11-20 21:20:06 +00:00
Conversation 1 Commits 5 Files Changed 13 +7 -79
13 changed files with 7 additions and 79 deletions
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3
config/config.exs
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@ -487,8 +487,7 @@ config :pleroma, Pleroma.Web.Preload,
config :pleroma, :http_security,
enabled: true,
sts: false,
sts_max_age: 31_536_000,
ct_max_age: 2_592_000,
sts_max_age: 63_072_000,
referrer_policy: "same-origin"
config :cors_plug,

9
config/description.exs
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@ -1750,14 +1750,7 @@ config :pleroma, :config_description, [
label: "STS max age",
type: :integer,
description: "The maximum age for the Strict-Transport-Security header if sent",
suggestions: [31_536_000]
},
%{
key: :ct_max_age,
label: "CT max age",
type: :integer,
description: "The maximum age for the Expect-CT header if sent",
suggestions: [2_592_000]
suggestions: [63_072_000]
},
%{
key: :referrer_policy,

1
docs/docs/configuration/cheatsheet.md
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@ -453,7 +453,6 @@ This will make Akkoma listen on `127.0.0.1` port `8080` and generate urls starti
* ``enabled``: Whether the managed content security policy is enabled.
* ``sts``: Whether to additionally send a `Strict-Transport-Security` header.
* ``sts_max_age``: The maximum age for the `Strict-Transport-Security` header if sent.
* ``ct_max_age``: The maximum age for the `Expect-CT` header if sent.
* ``referrer_policy``: The referrer policy to use, either `"same-origin"` or `"no-referrer"`.
* ``report_uri``: Adds the specified url to `report-uri` and `report-to` group in CSP header.

7
docs/docs/configuration/hardening.md
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@ -27,14 +27,13 @@ This will send additional HTTP security headers to the clients, including:
* `X-Permitted-Cross-Domain-Policies: "none"`
* `X-Frame-Options: "DENY"`
* `X-Content-Type-Options: "nosniff"`
* `X-Download-Options: "noopen"`
A content security policy (CSP) will also be set:
```csp
content-security-policy:
default-src 'none';
base-uri 'self';
base-uri 'none';
frame-ancestors 'none';
img-src 'self' data: blob: https:;
media-src 'self' https:;
@ -52,10 +51,6 @@ content-security-policy:
An additional “Strict transport security” header will be sent with the configured `sts_max_age` parameter. This tells the browser, that the domain should only be accessed over a secure HTTPs connection.
#### `ct_max_age`
An additional “Expect-CT” header will be sent with the configured `ct_max_age` parameter. This enforces the use of TLS certificates that are published in the certificate transparency log. (see [Expect-CT](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Expect-CT))
#### `referrer_policy`
> Recommended value: `same-origin`

1
docs/docs/configuration/i2p.md
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@ -160,7 +160,6 @@ server {
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
add_header Referrer-Policy same-origin;
add_header X-Download-Options noopen;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;

1
docs/docs/configuration/onion_federation.md
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@ -104,7 +104,6 @@ server {
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
add_header Referrer-Policy same-origin;
add_header X-Download-Options noopen;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;

5
docs/docs/installation/openbsd_en.md
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@ -165,10 +165,9 @@ http protocol plerup { # Protocol for upstream akkoma server
match response header append "X-Frame-Options" value "DENY"
match response header append "X-Content-Type-Options" value "nosniff"
match response header append "Referrer-Policy" value "same-origin"
match response header append "X-Download-Options" value "noopen"
match response header append "Content-Security-Policy" value "default-src 'none'; base-uri 'self'; form-action 'self'; img-src 'self' data: https:; media-src 'self' https:; style-src 'self' 'unsafe-inline'; font-src 'self'; script-src 'self'; connect-src 'self' wss://CHANGEME.tld; upgrade-insecure-requests;" # Modify "CHANGEME.tld" and set your instance's domain here
match response header append "Content-Security-Policy" value "default-src 'none'; base-uri 'none'; form-action 'self'; img-src 'self' data: https:; media-src 'self' https:; style-src 'self' 'unsafe-inline'; font-src 'self'; script-src 'self'; connect-src 'self' wss://CHANGEME.tld; upgrade-insecure-requests;" # Modify "CHANGEME.tld" and set your instance's domain here
match request header append "Connection" value "upgrade"
#match response header append "Strict-Transport-Security" value "max-age=31536000; includeSubDomains" # Uncomment this only after you get HTTPS working.
#match response header append "Strict-Transport-Security" value "max-age=63072000; includeSubDomains; preload" # Uncomment this only after you get HTTPS working.
# If you do not want remote frontends to be able to access your Akkoma backend server, comment these lines
match response header append "Access-Control-Allow-Origin" value "*"

7
lib/pleroma/web/plugs/http_security_plug.ex
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@ -47,7 +47,6 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlug do
{"x-frame-options", "DENY"},
{"x-content-type-options", "nosniff"},
{"referrer-policy", referrer_policy},
{"x-download-options", "noopen"},
{"content-security-policy", csp_string()},
{"permissions-policy", "interest-cohort=()"}
]
@ -76,7 +75,7 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlug do
static_csp_rules = [
"default-src 'none'",
"base-uri 'self'",
"base-uri 'none'",
"frame-ancestors 'none'",
"style-src 'self' 'unsafe-inline'",
"font-src 'self'",
@ -237,11 +236,9 @@ your instance and your users via malicious posts:
defp maybe_send_sts_header(conn, true) do
max_age_sts = Config.get([:http_security, :sts_max_age])
max_age_ct = Config.get([:http_security, :ct_max_age])
merge_resp_headers(conn, [
{"strict-transport-security", "max-age=#{max_age_sts}; includeSubDomains"},
{"expect-ct", "enforce, max-age=#{max_age_ct}"}
{"strict-transport-security", "max-age=#{max_age_sts}; includeSubDomains; preload"}
])
end

12
priv/gettext/ca/LC_MESSAGES/config_descriptions.po
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@ -1936,12 +1936,6 @@ msgstr ""
"What user agent to use. Must be a string or an atom `:default`. Default "
"value is `:default`."
#: lib/pleroma/docs/translator.ex:5
#, fuzzy
msgctxt "config description at :pleroma-:http_security > :ct_max_age"
msgid "The maximum age for the Expect-CT header if sent"
msgstr "The maximum age for the Expect-CT header if sent"
#: lib/pleroma/docs/translator.ex:5
#, fuzzy
msgctxt "config description at :pleroma-:http_security > :enabled"
@ -4993,12 +4987,6 @@ msgctxt "config label at :pleroma-:http > :user_agent"
msgid "User agent"
msgstr "User agent"
#: lib/pleroma/docs/translator.ex:5
#, fuzzy
msgctxt "config label at :pleroma-:http_security > :ct_max_age"
msgid "CT max age"
msgstr "CT max age"
#: lib/pleroma/docs/translator.ex:5
#, fuzzy
msgctxt "config label at :pleroma-:http_security > :enabled"

12
priv/gettext/config_descriptions.pot
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@ -1612,12 +1612,6 @@ msgctxt "config description at :pleroma-:http > :user_agent"
msgid "What user agent to use. Must be a string or an atom `:default`. Default value is `:default`."
msgstr ""
#, elixir-autogen, elixir-format
#: lib/pleroma/docs/translator.ex:5
msgctxt "config description at :pleroma-:http_security > :ct_max_age"
msgid "The maximum age for the Expect-CT header if sent"
msgstr ""
#, elixir-autogen, elixir-format
#: lib/pleroma/docs/translator.ex:5
msgctxt "config description at :pleroma-:http_security > :enabled"
@ -4048,12 +4042,6 @@ msgctxt "config label at :pleroma-:http > :user_agent"
msgid "User agent"
msgstr ""
#, elixir-autogen, elixir-format
#: lib/pleroma/docs/translator.ex:5
msgctxt "config label at :pleroma-:http_security > :ct_max_age"
msgid "CT max age"
msgstr ""
#, elixir-autogen, elixir-format
#: lib/pleroma/docs/translator.ex:5
msgctxt "config label at :pleroma-:http_security > :enabled"

12
priv/gettext/es/LC_MESSAGES/config_descriptions.po
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@ -1759,12 +1759,6 @@ msgstr ""
"What user agent to use. Must be a string or an atom `:default`. Default "
"value is `:default`."
#: lib/pleroma/docs/translator.ex:5
#, elixir-autogen, elixir-format, fuzzy
msgctxt "config description at :pleroma-:http_security > :ct_max_age"
msgid "The maximum age for the Expect-CT header if sent"
msgstr "The maximum age for the Expect-CT header if sent"
#: lib/pleroma/docs/translator.ex:5
#, elixir-autogen, elixir-format, fuzzy
msgctxt "config description at :pleroma-:http_security > :enabled"
@ -4420,12 +4414,6 @@ msgctxt "config label at :pleroma-:http > :user_agent"
msgid "User agent"
msgstr "User agent"
#: lib/pleroma/docs/translator.ex:5
#, elixir-autogen, elixir-format, fuzzy
msgctxt "config label at :pleroma-:http_security > :ct_max_age"
msgid "CT max age"
msgstr "CT max age"
#: lib/pleroma/docs/translator.ex:5
#, elixir-autogen, elixir-format, fuzzy
msgctxt "config label at :pleroma-:http_security > :enabled"

12
priv/gettext/nl/LC_MESSAGES/config_descriptions.po
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@ -1759,12 +1759,6 @@ msgstr ""
"What user agent to use. Must be a string or an atom `:default`. Default "
"value is `:default`."
#: lib/pleroma/docs/translator.ex:5
#, elixir-autogen, elixir-format, fuzzy
msgctxt "config description at :pleroma-:http_security > :ct_max_age"
msgid "The maximum age for the Expect-CT header if sent"
msgstr "The maximum age for the Expect-CT header if sent"
#: lib/pleroma/docs/translator.ex:5
#, elixir-autogen, elixir-format, fuzzy
msgctxt "config description at :pleroma-:http_security > :enabled"
@ -4420,12 +4414,6 @@ msgctxt "config label at :pleroma-:http > :user_agent"
msgid "User agent"
msgstr "User agent"
#: lib/pleroma/docs/translator.ex:5
#, elixir-autogen, elixir-format, fuzzy
msgctxt "config label at :pleroma-:http_security > :ct_max_age"
msgid "CT max age"
msgstr "CT max age"
#: lib/pleroma/docs/translator.ex:5
#, elixir-autogen, elixir-format, fuzzy
msgctxt "config label at :pleroma-:http_security > :enabled"

4
test/pleroma/web/plugs/http_security_plug_test.exs
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@ -17,7 +17,6 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
refute Conn.get_resp_header(conn, "x-permitted-cross-domain-policies") == []
refute Conn.get_resp_header(conn, "x-frame-options") == []
refute Conn.get_resp_header(conn, "x-content-type-options") == []
refute Conn.get_resp_header(conn, "x-download-options") == []
refute Conn.get_resp_header(conn, "referrer-policy") == []
refute Conn.get_resp_header(conn, "content-security-policy") == []
end
@ -28,7 +27,6 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
conn = get(conn, "/api/v1/instance")
refute Conn.get_resp_header(conn, "strict-transport-security") == []
refute Conn.get_resp_header(conn, "expect-ct") == []
end
test "it does not send STS headers when disabled", %{conn: conn} do
@ -37,7 +35,6 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
conn = get(conn, "/api/v1/instance")
assert Conn.get_resp_header(conn, "strict-transport-security") == []
assert Conn.get_resp_header(conn, "expect-ct") == []
end
test "referrer-policy header reflects configured value", %{conn: conn} do
@ -155,7 +152,6 @@ defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
assert Conn.get_resp_header(conn, "x-permitted-cross-domain-policies") == []
assert Conn.get_resp_header(conn, "x-frame-options") == []
assert Conn.get_resp_header(conn, "x-content-type-options") == []
assert Conn.get_resp_header(conn, "x-download-options") == []
assert Conn.get_resp_header(conn, "referrer-policy") == []
assert Conn.get_resp_header(conn, "content-security-policy") == []
end