|
| 1 | +import { describe, expect, it } from "bun:test"; |
| 2 | +import crypto from "node:crypto"; |
| 3 | +import { readFile, writeFile } from "node:fs/promises"; |
| 4 | +import { join } from "node:path"; |
| 5 | +import { BLINK_COMMAND, KEY_CODES, makeTmpDir, render } from "./lib/terminal"; |
| 6 | +import { updateEnvCredentials, verifySlackSignature } from "./setup-slack-app"; |
| 7 | + |
| 8 | +describe("verifySlackSignature", () => { |
| 9 | + const signingSecret = "test_signing_secret_12345"; |
| 10 | + |
| 11 | + function generateValidSignature( |
| 12 | + secret: string, |
| 13 | + timestamp: string, |
| 14 | + body: string |
| 15 | + ): string { |
| 16 | + const hmac = crypto.createHmac("sha256", secret); |
| 17 | + hmac.update(`v0:${timestamp}:${body}`); |
| 18 | + return `v0=${hmac.digest("hex")}`; |
| 19 | + } |
| 20 | + |
| 21 | + it("should return true for a valid signature", () => { |
| 22 | + const timestamp = Math.floor(Date.now() / 1000).toString(); |
| 23 | + const body = JSON.stringify({ type: "event_callback", event: {} }); |
| 24 | + const signature = generateValidSignature(signingSecret, timestamp, body); |
| 25 | + |
| 26 | + const result = verifySlackSignature( |
| 27 | + signingSecret, |
| 28 | + timestamp, |
| 29 | + body, |
| 30 | + signature |
| 31 | + ); |
| 32 | + expect(result).toBe(true); |
| 33 | + }); |
| 34 | + |
| 35 | + it("should return false for an invalid signature", () => { |
| 36 | + const timestamp = Math.floor(Date.now() / 1000).toString(); |
| 37 | + const body = JSON.stringify({ type: "event_callback", event: {} }); |
| 38 | + // Use a signature with the correct length (v0= + 64 hex chars for SHA256) |
| 39 | + const invalidSignature = |
| 40 | + "v0=0000000000000000000000000000000000000000000000000000000000000000"; |
| 41 | + |
| 42 | + const result = verifySlackSignature( |
| 43 | + signingSecret, |
| 44 | + timestamp, |
| 45 | + body, |
| 46 | + invalidSignature |
| 47 | + ); |
| 48 | + expect(result).toBe(false); |
| 49 | + }); |
| 50 | + |
| 51 | + it("should return false for a request older than 5 minutes", () => { |
| 52 | + // Timestamp from 10 minutes ago |
| 53 | + const timestamp = (Math.floor(Date.now() / 1000) - 600).toString(); |
| 54 | + const body = JSON.stringify({ type: "event_callback", event: {} }); |
| 55 | + const signature = generateValidSignature(signingSecret, timestamp, body); |
| 56 | + |
| 57 | + const result = verifySlackSignature( |
| 58 | + signingSecret, |
| 59 | + timestamp, |
| 60 | + body, |
| 61 | + signature |
| 62 | + ); |
| 63 | + expect(result).toBe(false); |
| 64 | + }); |
| 65 | + |
| 66 | + it("should return false when signature does not match body", () => { |
| 67 | + const timestamp = Math.floor(Date.now() / 1000).toString(); |
| 68 | + const originalBody = JSON.stringify({ type: "event_callback", event: {} }); |
| 69 | + const tamperedBody = JSON.stringify({ |
| 70 | + type: "event_callback", |
| 71 | + event: { tampered: true }, |
| 72 | + }); |
| 73 | + const signature = generateValidSignature( |
| 74 | + signingSecret, |
| 75 | + timestamp, |
| 76 | + originalBody |
| 77 | + ); |
| 78 | + |
| 79 | + const result = verifySlackSignature( |
| 80 | + signingSecret, |
| 81 | + timestamp, |
| 82 | + tamperedBody, |
| 83 | + signature |
| 84 | + ); |
| 85 | + expect(result).toBe(false); |
| 86 | + }); |
| 87 | + |
| 88 | + it("should return false when signing secret is wrong", () => { |
| 89 | + const timestamp = Math.floor(Date.now() / 1000).toString(); |
| 90 | + const body = JSON.stringify({ type: "event_callback", event: {} }); |
| 91 | + const signature = generateValidSignature("wrong_secret", timestamp, body); |
| 92 | + |
| 93 | + const result = verifySlackSignature( |
| 94 | + signingSecret, |
| 95 | + timestamp, |
| 96 | + body, |
| 97 | + signature |
| 98 | + ); |
| 99 | + expect(result).toBe(false); |
| 100 | + }); |
| 101 | +}); |
| 102 | + |
| 103 | +describe("updateEnvCredentials", () => { |
| 104 | + it("should add credentials to an empty env file", async () => { |
| 105 | + await using tempDir = await makeTmpDir(); |
| 106 | + const envPath = join(tempDir.path, ".env.local"); |
| 107 | + await writeFile(envPath, "", "utf-8"); |
| 108 | + |
| 109 | + await updateEnvCredentials( |
| 110 | + envPath, |
| 111 | + "xoxb-test-token", |
| 112 | + "test-signing-secret" |
| 113 | + ); |
| 114 | + |
| 115 | + const content = await readFile(envPath, "utf-8"); |
| 116 | + expect(content).toContain("SLACK_BOT_TOKEN=xoxb-test-token"); |
| 117 | + expect(content).toContain("SLACK_SIGNING_SECRET=test-signing-secret"); |
| 118 | + expect(content).toContain("# Slack App credentials"); |
| 119 | + }); |
| 120 | + |
| 121 | + it("should add credentials to an env file with existing variables", async () => { |
| 122 | + await using tempDir = await makeTmpDir(); |
| 123 | + const envPath = join(tempDir.path, ".env.local"); |
| 124 | + await writeFile( |
| 125 | + envPath, |
| 126 | + "EXISTING_VAR=value\nANOTHER_VAR=another_value\n", |
| 127 | + "utf-8" |
| 128 | + ); |
| 129 | + |
| 130 | + await updateEnvCredentials( |
| 131 | + envPath, |
| 132 | + "xoxb-test-token", |
| 133 | + "test-signing-secret" |
| 134 | + ); |
| 135 | + |
| 136 | + const content = await readFile(envPath, "utf-8"); |
| 137 | + expect(content).toContain("EXISTING_VAR=value"); |
| 138 | + expect(content).toContain("ANOTHER_VAR=another_value"); |
| 139 | + expect(content).toContain("SLACK_BOT_TOKEN=xoxb-test-token"); |
| 140 | + expect(content).toContain("SLACK_SIGNING_SECRET=test-signing-secret"); |
| 141 | + }); |
| 142 | + |
| 143 | + it("should comment out existing Slack credentials", async () => { |
| 144 | + await using tempDir = await makeTmpDir(); |
| 145 | + const envPath = join(tempDir.path, ".env.local"); |
| 146 | + await writeFile( |
| 147 | + envPath, |
| 148 | + `EXISTING_VAR=value |
| 149 | +SLACK_BOT_TOKEN=old-token |
| 150 | +SLACK_SIGNING_SECRET=old-secret |
| 151 | +ANOTHER_VAR=another_value |
| 152 | +`, |
| 153 | + "utf-8" |
| 154 | + ); |
| 155 | + |
| 156 | + await updateEnvCredentials(envPath, "xoxb-new-token", "new-signing-secret"); |
| 157 | + |
| 158 | + const content = await readFile(envPath, "utf-8"); |
| 159 | + |
| 160 | + // Old credentials should be commented out |
| 161 | + expect(content).toContain("# SLACK_BOT_TOKEN=old-token"); |
| 162 | + expect(content).toContain("# SLACK_SIGNING_SECRET=old-secret"); |
| 163 | + |
| 164 | + // New credentials should be present |
| 165 | + expect(content).toContain("SLACK_BOT_TOKEN=xoxb-new-token"); |
| 166 | + expect(content).toContain("SLACK_SIGNING_SECRET=new-signing-secret"); |
| 167 | + |
| 168 | + // Other variables should be preserved |
| 169 | + expect(content).toContain("EXISTING_VAR=value"); |
| 170 | + expect(content).toContain("ANOTHER_VAR=another_value"); |
| 171 | + }); |
| 172 | + |
| 173 | + it("should not double-comment already commented credentials", async () => { |
| 174 | + await using tempDir = await makeTmpDir(); |
| 175 | + const envPath = join(tempDir.path, ".env.local"); |
| 176 | + await writeFile( |
| 177 | + envPath, |
| 178 | + `# SLACK_BOT_TOKEN=already_commented |
| 179 | +SLACK_SIGNING_SECRET=active_secret |
| 180 | +`, |
| 181 | + "utf-8" |
| 182 | + ); |
| 183 | + |
| 184 | + await updateEnvCredentials(envPath, "xoxb-new-token", "new-secret"); |
| 185 | + |
| 186 | + const content = await readFile(envPath, "utf-8"); |
| 187 | + |
| 188 | + // Already commented should stay as is (not double-commented) |
| 189 | + expect(content).toContain("# SLACK_BOT_TOKEN=already_commented"); |
| 190 | + expect(content).not.toContain("# # SLACK_BOT_TOKEN=already_commented"); |
| 191 | + |
| 192 | + // Active credential should be commented out |
| 193 | + expect(content).toContain("# SLACK_SIGNING_SECRET=active_secret"); |
| 194 | + |
| 195 | + // New credentials should be present |
| 196 | + expect(content).toContain("SLACK_BOT_TOKEN=xoxb-new-token"); |
| 197 | + expect(content).toContain("SLACK_SIGNING_SECRET=new-secret"); |
| 198 | + }); |
| 199 | + |
| 200 | + it("should handle env file that does not exist", async () => { |
| 201 | + await using tempDir = await makeTmpDir(); |
| 202 | + const envPath = join(tempDir.path, ".env.local"); |
| 203 | + // Don't create the file - it doesn't exist |
| 204 | + |
| 205 | + await updateEnvCredentials(envPath, "xoxb-test-token", "test-secret"); |
| 206 | + |
| 207 | + const content = await readFile(envPath, "utf-8"); |
| 208 | + expect(content).toContain("SLACK_BOT_TOKEN=xoxb-test-token"); |
| 209 | + expect(content).toContain("SLACK_SIGNING_SECRET=test-secret"); |
| 210 | + }); |
| 211 | + |
| 212 | + it("should only add bot token if signing secret is not provided", async () => { |
| 213 | + await using tempDir = await makeTmpDir(); |
| 214 | + const envPath = join(tempDir.path, ".env.local"); |
| 215 | + await writeFile(envPath, "", "utf-8"); |
| 216 | + |
| 217 | + await updateEnvCredentials(envPath, "xoxb-test-token", undefined); |
| 218 | + |
| 219 | + const content = await readFile(envPath, "utf-8"); |
| 220 | + expect(content).toContain("SLACK_BOT_TOKEN=xoxb-test-token"); |
| 221 | + expect(content).not.toContain("SLACK_SIGNING_SECRET="); |
| 222 | + }); |
| 223 | + |
| 224 | + it("should only add signing secret if bot token is not provided", async () => { |
| 225 | + await using tempDir = await makeTmpDir(); |
| 226 | + const envPath = join(tempDir.path, ".env.local"); |
| 227 | + await writeFile(envPath, "", "utf-8"); |
| 228 | + |
| 229 | + await updateEnvCredentials(envPath, undefined, "test-signing-secret"); |
| 230 | + |
| 231 | + const content = await readFile(envPath, "utf-8"); |
| 232 | + expect(content).not.toContain("SLACK_BOT_TOKEN="); |
| 233 | + expect(content).toContain("SLACK_SIGNING_SECRET=test-signing-secret"); |
| 234 | + }); |
| 235 | +}); |
| 236 | + |
| 237 | +describe("setup slack-app command", () => { |
| 238 | + it("should show error when .env.local does not exist", async () => { |
| 239 | + await using tempDir = await makeTmpDir(); |
| 240 | + using term = render(`${BLINK_COMMAND} setup slack-app`, { |
| 241 | + cwd: tempDir.path, |
| 242 | + }); |
| 243 | + |
| 244 | + await term.waitUntil((screen) => |
| 245 | + screen.includes("No .env.local file found") |
| 246 | + ); |
| 247 | + expect(term.getScreen()).toContain("No .env.local file found"); |
| 248 | + }); |
| 249 | + |
| 250 | + it("should prompt for app name when .env.local exists", async () => { |
| 251 | + await using tempDir = await makeTmpDir(); |
| 252 | + const envPath = join(tempDir.path, ".env.local"); |
| 253 | + await writeFile(envPath, "SOME_VAR=value\n", "utf-8"); |
| 254 | + |
| 255 | + using term = render(`${BLINK_COMMAND} setup slack-app`, { |
| 256 | + cwd: tempDir.path, |
| 257 | + }); |
| 258 | + |
| 259 | + await term.waitUntil((screen) => |
| 260 | + screen.includes("What should your Slack app be called?") |
| 261 | + ); |
| 262 | + expect(term.getScreen()).toContain("What should your Slack app be called?"); |
| 263 | + }); |
| 264 | + |
| 265 | + it("should show URL and browser prompt after entering app name", async () => { |
| 266 | + await using tempDir = await makeTmpDir(); |
| 267 | + const envPath = join(tempDir.path, ".env.local"); |
| 268 | + await writeFile(envPath, "SOME_VAR=value\n", "utf-8"); |
| 269 | + |
| 270 | + using term = render(`${BLINK_COMMAND} setup slack-app`, { |
| 271 | + cwd: tempDir.path, |
| 272 | + }); |
| 273 | + |
| 274 | + // Enter app name |
| 275 | + await term.waitUntil((screen) => |
| 276 | + screen.includes("What should your Slack app be called?") |
| 277 | + ); |
| 278 | + term.write("my-test-slack-app"); |
| 279 | + term.write(KEY_CODES.ENTER); |
| 280 | + |
| 281 | + // Should show URL and ask about opening browser |
| 282 | + await term.waitUntil((screen) => |
| 283 | + screen.includes("Open this URL in your browser automatically?") |
| 284 | + ); |
| 285 | + expect(term.getScreen()).toContain("api.slack.com"); |
| 286 | + expect(term.getScreen()).toContain( |
| 287 | + "Open this URL in your browser automatically?" |
| 288 | + ); |
| 289 | + }); |
| 290 | + |
| 291 | + it("should prompt for App ID after declining to open browser", async () => { |
| 292 | + await using tempDir = await makeTmpDir(); |
| 293 | + const envPath = join(tempDir.path, ".env.local"); |
| 294 | + await writeFile(envPath, "SOME_VAR=value\n", "utf-8"); |
| 295 | + |
| 296 | + using term = render(`${BLINK_COMMAND} setup slack-app`, { |
| 297 | + cwd: tempDir.path, |
| 298 | + }); |
| 299 | + |
| 300 | + // Enter app name |
| 301 | + await term.waitUntil((screen) => |
| 302 | + screen.includes("What should your Slack app be called?") |
| 303 | + ); |
| 304 | + term.write("my-test-slack-app"); |
| 305 | + term.write(KEY_CODES.ENTER); |
| 306 | + |
| 307 | + // Decline to open browser |
| 308 | + await term.waitUntil((screen) => |
| 309 | + screen.includes("Open this URL in your browser automatically?") |
| 310 | + ); |
| 311 | + // Move selection to "No" and confirm |
| 312 | + term.write(KEY_CODES.LEFT); |
| 313 | + term.write(KEY_CODES.ENTER); |
| 314 | + |
| 315 | + // Should prompt for App ID |
| 316 | + await term.waitUntil((screen) => screen.includes("paste the App ID")); |
| 317 | + expect(term.getScreen()).toContain("App ID"); |
| 318 | + }); |
| 319 | +}); |
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