Files
pixa/internal/httpfetcher/blocked_networks_internal_test.go
T
clawbot 63690a9ec9
check / check (push) Canceled after 0s
Build the image pipeline in pixad's fx graph (closes #313)
The new package internal/providers builds the cache, the fetcher, the
processor, the image service, the session manager and the encrypted URL
generator from the config. pixad's fx graph provides them with
providers.Constructors(), and handlers.New receives them built. The
server tests build the same graph, with only the fetcher's dial function
replaced. database.New opens the database, so these parts can read it
while fx builds them; the cache's stop hook still runs before the
database's.

Each setting's default is declared in internal/config, and
internal/providers works out the default cache_max_bytes. The cache's
MaxBytes is the one value for the disk cache limit, and 0 turns the disk
cache off. The fetcher and the processor take explicit values.

Model: opus-5-5
2026-10-26 12:28:23 +01:00

116 lines
3.3 KiB
Go

package httpfetcher
import (
"context"
"errors"
"net"
"net/http"
"net/netip"
"testing"
"time"
)
// TestIsPrivateIPBlocksSpecialRanges covers the internal and special-use
// ranges added to the built-in blocklist, in IPv4, IPv6, and IPv4-mapped
// forms, alongside public controls that must stay reachable.
func TestIsPrivateIPBlocksSpecialRanges(t *testing.T) {
t.Parallel()
tests := []struct {
name string
ip string
want bool
}{
{"cgnat-low", "100.64.0.1", true},
{"cgnat-high", "100.127.255.254", true},
{"ietf-protocol", "192.0.0.1", true},
{"benchmark-low", "198.18.0.1", true},
{"benchmark-high", "198.19.255.254", true},
{"nat64", "64:ff9b::1", true},
{"nat64-embeds-private", "64:ff9b::a00:1", true}, // maps 10.0.0.1
{"ipv4-mapped-private", "::ffff:10.0.0.1", true},
{"cloud-metadata", "169.254.169.254", true},
{"public-v4", "8.8.8.8", false},
{"test-net-1-public", testPublicHost, false}, // TEST-NET-1, stays public
{"public-v6", "2001:4860:4860::8888", false},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
ip := net.ParseIP(tc.ip)
if ip == nil {
t.Fatalf("failed to parse IP %q", tc.ip)
}
got := isPrivateIP(ip)
if got != tc.want {
t.Errorf("isPrivateIP(%q) = %v, want %v", tc.ip, got, tc.want)
}
})
}
}
// transportOf returns the *http.Transport backing a fetcher, so a test can
// exercise the SSRF-safe dialer New installed with the operator blocklist.
func transportOf(t *testing.T, f *HTTPFetcher) *http.Transport {
t.Helper()
transport, ok := f.client.Transport.(*http.Transport)
if !ok {
t.Fatalf("transport is %T, want *http.Transport", f.client.Transport)
}
return transport
}
// TestDialerEnforcesBlockedNetworks proves an operator-supplied
// blocked_networks entry is enforced by the dialer, in addition to the
// built-in ranges, while an address outside both stays dialable.
func TestDialerEnforcesBlockedNetworks(t *testing.T) {
t.Parallel()
transport := transportOf(t, New(&Config{
Timeout: 30 * time.Second,
MaxResponseSize: 50 << 20,
MaxConnectionsPerHost: 20,
MaxConnections: 64,
// TEST-NET-2 (198.51.100.0/24) is public to the built-in check, so
// blocking it can only come from the operator-supplied list.
BlockedNetworks: []netip.Prefix{netip.MustParsePrefix("198.51.100.0/24")},
}))
blocked := []string{
"198.51.100.5:80", // operator-supplied range
"10.0.0.5:80", // built-in RFC 1918, still enforced
"100.64.0.1:80", // built-in CGNAT range
}
for _, addr := range blocked {
t.Run("blocked/"+addr, func(t *testing.T) {
t.Parallel()
_, err := transport.DialContext(context.Background(), "tcp", addr)
if !errors.Is(err, ErrSSRFBlocked) {
t.Errorf("DialContext(%q) = %v, want ErrSSRFBlocked", addr, err)
}
})
}
t.Run("public-not-blocked", func(t *testing.T) {
t.Parallel()
// A cancelled context makes the dial fail without touching the
// network; the point is only that a public literal outside every
// blocked range is not SSRF-blocked.
ctx, cancel := context.WithCancel(context.Background())
cancel()
_, err := transport.DialContext(ctx, "tcp", testPublicHost+":80")
if errors.Is(err, ErrSSRFBlocked) {
t.Errorf("public target SSRF-blocked with operator list set: %v", err)
}
})
}