 [public]           — Retrieve and display a paste (role/user-gated)\n *   /paste list                          — Show all pastes for this guild\n *   /paste delete                  — Remove a paste (creator or admin)\n *   /paste allow-role        — Grant role view permission (admin)\n *   /paste deny-role         — Revoke role view permission (admin)\n *   /paste allow-user        — Grant user view permission (admin)\n *   /paste deny-user         — Revoke user view permission (admin)\n *\n * File: discord/interactions/commands/paste.ts\n */\n\nimport { defineCommand, OptionTypes } from \"../define-command.ts\";\nimport { EmbedColors, isGuildAdmin } from \"../../constants.ts\";\nimport { blob } from \"../../persistence/blob.ts\";\nimport { createAutocompleteResponse } from \"../patterns.ts\";\nimport { ExpiringCache } from \"../../helpers/cache.ts\";\nimport { checkEntityAccess, blobAllow, blobDeny } from \"../../helpers/permissions.ts\";\nimport { formatPermissionInfo } from \"../../helpers/format.ts\";\n\nexport interface PasteEntry {\n  content: string;\n  allowedRoles?: string[];\n  allowedUsers?: string[];\n  createdBy: string;\n  createdAt: string;\n  title?: string;\n}\n\nconst MAX_PASTES = 50;\nconst MAX_PASTES_PER_USER = 15;\nconst MAX_CONTENT_LENGTH = 6000;\n\nfunction blobKey(guildId: string, code: string): string {\n  return `paste:${guildId}:${code}`;\n}\n\nfunction blobPrefix(guildId: string): string {\n  return `paste:${guildId}:`;\n}\n\n/** Validate paste code: hex only, max 16 chars. Returns null if invalid. */\nfunction sanitizeCode(raw: string): string | null {\n  const code = raw.trim().toLowerCase();\n  return /^[a-f0-9]{1,16}$/.test(code) ? code : null;\n}\n\n/** Generate an 8-char hex ID. */\nfunction generateCode(): string {\n  const bytes = new Uint8Array(4);\n  crypto.getRandomValues(bytes);\n  return Array.from(bytes).map((b) => b.toString(16).padStart(2, \"0\")).join(\"\");\n}\n\ninterface PasteListItem {\n  code: string;\n  entry: PasteEntry;\n}\n\nasync function listPastes(guildId: string): Promise {\n  const prefix = blobPrefix(guildId);\n  const entries = await blob.list(prefix);\n  const results = await Promise.all(\n    entries.map(async (e) => {\n      const code = e.key.slice(prefix.length);\n      const entry = await blob.getJSON(e.key);\n      return entry ? { code, entry } : null;\n    }),\n  );\n  return results.filter((r): r is PasteListItem => r !== null);\n}\n\nconst listCache = new ExpiringCache(30_000, 500);\n\nfunction invalidateCache(guildId: string): void {\n  listCache.delete(blobPrefix(guildId));\n}\n\nexport const _internals = { blobKey, blobPrefix, generateCode, sanitizeCode, canGet: checkEntityAccess };\n\nexport default defineCommand({\n  name: \"paste\",\n  description: \"Server pastebin — store and share text snippets\",\n\n  options: [\n    {\n      name: \"create\",\n      description: \"Store text and get a short code\",\n      type: OptionTypes.SUB_COMMAND,\n      required: false,\n      options: [\n        {\n          name: \"content\",\n          description: \"Text to store\",\n          type: OptionTypes.STRING,\n          required: true,\n          min_length: 1,\n          max_length: MAX_CONTENT_LENGTH,\n        },\n      ],\n    },\n    {\n      name: \"get\",\n      description: \"Retrieve and display a paste\",\n      type: OptionTypes.SUB_COMMAND,\n      required: false,\n      options: [\n        {\n          name: \"code\",\n          description: \"Paste code\",\n          type: OptionTypes.STRING,\n          required: true,\n          autocomplete: true,\n        },\n        {\n          name: \"public\",\n          description: \"Show the paste to the whole channel (default: false)\",\n          type: OptionTypes.BOOLEAN,\n          required: false,\n        },\n      ],\n    },\n    {\n      name: \"list\",\n      description: \"Show all pastes for this server\",\n      type: OptionTypes.SUB_COMMAND,\n      required: false,\n    },\n    {\n      name: \"delete\",\n      description: \"Remove a paste (creator or admin)\",\n      type: OptionTypes.SUB_COMMAND,\n      required: false,\n      options: [\n        {\n          name: \"code\",\n          description: \"Paste code\",\n          type: OptionTypes.STRING,\n          required: true,\n          autocomplete: true,\n        },\n      ],\n    },\n    {\n      name: \"allow-role\",\n      description: \"Grant a role permission to view this paste (admin)\",\n      type: OptionTypes.SUB_COMMAND,\n      required: false,\n      options: [\n        {\n          name: \"code\",\n          description: \"Paste code\",\n          type: OptionTypes.STRING,\n          required: true,\n          autocomplete: true,\n        },\n        {\n          name: \"role\",\n          description: \"Role to allow\",\n          type: OptionTypes.ROLE,\n          required: true,\n        },\n      ],\n    },\n    {\n      name: \"deny-role\",\n      description: \"Revoke a role's view permission (admin)\",\n      type: OptionTypes.SUB_COMMAND,\n      required: false,\n      options: [\n        {\n          name: \"code\",\n          description: \"Paste code\",\n          type: OptionTypes.STRING,\n          required: true,\n          autocomplete: true,\n        },\n        {\n          name: \"role\",\n          description: \"Role to deny\",\n          type: OptionTypes.ROLE,\n          required: true,\n        },\n      ],\n    },\n    {\n      name: \"allow-user\",\n      description: \"Grant a user permission to view this paste (admin)\",\n      type: OptionTypes.SUB_COMMAND,\n      required: false,\n      options: [\n        {\n          name: \"code\",\n          description: \"Paste code\",\n          type: OptionTypes.STRING,\n          required: true,\n          autocomplete: true,\n        },\n        {\n          name: \"user\",\n          description: \"User to allow\",\n          type: OptionTypes.USER,\n          required: true,\n        },\n      ],\n    },\n    {\n      name: \"deny-user\",\n      description: \"Revoke a user's view permission (admin)\",\n      type: OptionTypes.SUB_COMMAND,\n      required: false,\n      options: [\n        {\n          name: \"code\",\n          description: \"Paste code\",\n          type: OptionTypes.STRING,\n          required: true,\n          autocomplete: true,\n        },\n        {\n          name: \"user\",\n          description: \"User to deny\",\n          type: OptionTypes.USER,\n          required: true,\n        },\n      ],\n    },\n  ],\n\n  registration: { type: \"guild\" },\n  deferred: false,\n  ephemeral: true,\n\n  autocomplete(body, _config) {\n    const guildId = body.guild_id;\n    const options = body.data.options?.[0];\n    const focused = options?.options?.find((o: any) => o.focused);\n    const query = (focused?.value as string || \"\").toLowerCase();\n\n    return (async () => {\n      const items = await listCache.getOrFetch(blobPrefix(guildId), () => listPastes(guildId));\n      const filtered = query\n        ? items.filter((i) => i.code.includes(query) || i.entry.content.toLowerCase().includes(query))\n        : items;\n      return createAutocompleteResponse(\n        filtered.map((i) => {\n          const preview = i.entry.content.slice(0, 60).replace(/\\n/g, \" \");\n          return { name: `${i.code} — ${preview}`, value: i.code };\n        }),\n      );\n    })();\n  },\n\n  async execute({ guildId, userId, options, memberRoles, memberPermissions }) {\n    const sub = options?.subcommand as string | undefined;\n    const roles = memberRoles ?? [];\n\n    if (sub === \"create\") {\n      const content = options.content as string;\n\n      // Check limits\n      const allPastes = await listPastes(guildId);\n      if (allPastes.length >= MAX_PASTES) {\n        return { success: false, error: `Maximum of ${MAX_PASTES} pastes reached for this server.` };\n      }\n      const userCount = allPastes.filter((p) => p.entry.createdBy === userId).length;\n      if (userCount >= MAX_PASTES_PER_USER) {\n        return { success: false, error: `You've reached the maximum of ${MAX_PASTES_PER_USER} pastes per user.` };\n      }\n\n      const code = generateCode();\n      const entry: PasteEntry = {\n        content,\n        createdBy: userId,\n        createdAt: new Date().toISOString(),\n      };\n\n      await blob.setJSON(blobKey(guildId, code), entry);\n      invalidateCache(guildId);\n\n      return { success: true, message: `Paste created with code \\`${code}\\`. Use \\`/paste get ${code}\\` to retrieve it.` };\n    }\n\n    if (sub === \"get\") {\n      const code = sanitizeCode(options.code as string);\n      if (!code) {\n        return { success: false, error: \"Invalid paste code.\" };\n      }\n      const isPublic = (options.public as boolean) ?? false;\n      const entry = await blob.getJSON(blobKey(guildId, code));\n\n      if (!entry) {\n        return { success: false, error: `Paste \\`${code}\\` not found.` };\n      }\n\n      if (!(await checkEntityAccess(entry, guildId, userId, roles, memberPermissions))) {\n        return { success: false, error: \"You don't have permission to view this paste.\" };\n      }\n\n      return {\n        success: true,\n        message: entry.content,\n        ephemeral: !isPublic,\n      };\n    }\n\n    if (sub === \"list\") {\n      const items = await listPastes(guildId);\n\n      if (items.length === 0) {\n        return { success: true, message: \"No pastes found. Use `/paste create` to create one.\" };\n      }\n\n      const lines = items.map((i) => {\n        const preview = i.entry.content.slice(0, 50).replace(/\\n/g, \" \") +\n          (i.entry.content.length > 50 ? \"...\" : \"\");\n        return `\\`${i.code}\\` — ${preview}${formatPermissionInfo(i.entry)}`;\n      });\n\n      return {\n        success: true,\n        message: \"\",\n        embed: {\n          title: \"Server Pastes\",\n          description: lines.join(\"\\n\"),\n          color: EmbedColors.INFO,\n          footer: { text: `${items.length}/${MAX_PASTES} pastes` },\n        },\n      };\n    }\n\n    if (sub === \"delete\") {\n      const code = sanitizeCode(options.code as string);\n      if (!code) {\n        return { success: false, error: \"Invalid paste code.\" };\n      }\n      const entry = await blob.getJSON(blobKey(guildId, code));\n\n      if (!entry) {\n        return { success: false, error: `Paste \\`${code}\\` not found.` };\n      }\n\n      // Check ownership: creator or admin\n      const isAdmin = await isGuildAdmin(guildId, userId, roles, memberPermissions);\n      if (entry.createdBy !== userId && !isAdmin) {\n        return { success: false, error: \"You can only delete your own pastes unless you're an admin.\" };\n      }\n\n      await blob.delete(blobKey(guildId, code));\n      invalidateCache(guildId);\n\n      return { success: true, message: `Paste \\`${code}\\` deleted.` };\n    }\n\n    if (sub === \"allow-role\" || sub === \"deny-role\" || sub === \"allow-user\" || sub === \"deny-user\") {\n      const code = sanitizeCode(options.code as string);\n      if (!code) {\n        return { success: false, error: \"Invalid paste code.\" };\n      }\n      const isRole = sub.endsWith(\"-role\");\n      const isAllow = sub.startsWith(\"allow\");\n      const targetId = isRole ? (options.role as string) : (options.user as string);\n      const handler = isAllow ? blobAllow : blobDeny;\n\n      return handler({\n        guildId, userId, memberRoles: roles, memberPermissions,\n        entityName: code, entityLabel: \"paste\", verb: \"view\",\n        targetId, targetType: isRole ? \"role\" : \"user\",\n        getEntry: () => blob.getJSON(blobKey(guildId, code)),\n        saveEntry: (e) => blob.setJSON(blobKey(guildId, code), e),\n        invalidateCache: () => invalidateCache(guildId),\n      });\n    }\n\n    return { success: false, error: \"Please use a subcommand.\" };\n  },\n});\n","deleted","label",[183,184,185,165],"discord","interactions","commands","permalink","https://www.val.town/x/catalloc/catnip/code/discord/interactions/commands/paste.ts","extension","actionData","errors"]