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harukaandClaude Opus 4.8
6cfb7898df
Recent Claude Code CLI versions no longer emit the cch=... signature field in their x-anthropic-billing-header system block (issue #3358). sub2api still injected cch=00000 when mimicking Claude Code for OAuth accounts and optionally signed it, so mimicked requests now diverge from real CLI traffic — the opposite of what the mimicry is for. - buildBillingAttributionText emits the block without the cch=00000 segment; cc_version + cc_entrypoint=cli are kept (detection and Anthropic's first-party signal rely on the block, not on cch). - Retire signing: remove the two enableCCH signBillingHeaderCCH call sites in buildUpstreamRequest / buildCountTokensRequest and delete the now-dead signBillingHeaderCCH, cchPlaceholderRe, cchSeed, xxHash64Seeded helpers. - enable_cch_signing is now a documented no-op (kept for backward compat). - Drop the obsolete signing tests (TestSignBillingHeaderCCH, TestXXHash64Seeded, TestSanitizeMustBeBeforeCCHSigning_HashConsistency) and update the prompt test to assert the injected block no longer carries cch=. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
68 lines
2.1 KiB
Go
68 lines
2.1 KiB
Go
package service
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestSyncBillingHeaderVersion(t *testing.T) {
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tests := []struct {
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name string
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body string
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userAgent string
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wantSub string // substring expected in result
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unchanged bool // expect body to remain the same
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}{
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{
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name: "replaces cc_version preserving message-derived suffix",
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body: `{"system":[{"type":"text","text":"x-anthropic-billing-header: cc_version=2.1.81.df2; cc_entrypoint=cli; cch=00000;"},{"type":"text","text":"You are Claude Code.","cache_control":{"type":"ephemeral"}}],"messages":[]}`,
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userAgent: "claude-cli/2.1.22 (external, cli)",
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wantSub: "cc_version=2.1.22.df2",
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},
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{
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name: "no billing header in system",
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body: `{"system":[{"type":"text","text":"You are Claude Code."}],"messages":[]}`,
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userAgent: "claude-cli/2.1.22",
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unchanged: true,
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},
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{
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name: "no system field",
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body: `{"messages":[]}`,
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userAgent: "claude-cli/2.1.22",
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unchanged: true,
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},
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{
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name: "user-agent without version",
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body: `{"system":[{"type":"text","text":"x-anthropic-billing-header: cc_version=2.1.81; cc_entrypoint=cli; cch=00000;"}],"messages":[]}`,
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userAgent: "Mozilla/5.0",
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unchanged: true,
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},
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{
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name: "empty user-agent",
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body: `{"system":[{"type":"text","text":"x-anthropic-billing-header: cc_version=2.1.81; cc_entrypoint=cli; cch=00000;"}],"messages":[]}`,
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userAgent: "",
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unchanged: true,
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},
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{
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name: "version already matches",
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body: `{"system":[{"type":"text","text":"x-anthropic-billing-header: cc_version=2.1.22; cc_entrypoint=cli; cch=00000;"}],"messages":[]}`,
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userAgent: "claude-cli/2.1.22",
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unchanged: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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result := syncBillingHeaderVersion([]byte(tt.body), tt.userAgent)
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if tt.unchanged {
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assert.Equal(t, tt.body, string(result), "body should remain unchanged")
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} else {
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assert.Contains(t, string(result), tt.wantSub)
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// Ensure old semver is gone
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assert.NotContains(t, string(result), "cc_version=2.1.81")
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}
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})
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}
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}
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