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Utilities for all Sentry JavaScript SDKs
{"version":3,"file":"envelope.js","sources":["../../src/envelope.ts"],"sourcesContent":["import type {\n Attachment,\n AttachmentItem,\n BaseEnvelopeHeaders,\n BaseEnvelopeItemHeaders,\n DataCategory,\n DsnComponents,\n Envelope,\n EnvelopeItemType,\n Event,\n EventEnvelopeHeaders,\n SdkInfo,\n SdkMetadata,\n SpanItem,\n SpanJSON,\n} from '@sentry/types';\n\nimport { dsnToString } from './dsn';\nimport { normalize } from './normalize';\nimport { dropUndefinedKeys } from './object';\nimport { GLOBAL_OBJ } from './worldwide';\n\n/**\n * Creates an envelope.\n * Make sure to always explicitly provide the generic to this function\n * so that the envelope types resolve correctly.\n */\nexport function createEnvelope(headers: E[0], items: E[1] = []): E {\n return [headers, items] as E;\n}\n\n/**\n * Add an item to an envelope.\n * Make sure to always explicitly provide the generic to this function\n * so that the envelope types resolve correctly.\n */\nexport function addItemToEnvelope(envelope: E, newItem: E[1][number]): E {\n const [headers, items] = envelope;\n return [headers, [...items, newItem]] as unknown as E;\n}\n\n/**\n * Convenience function to loop through the items and item types of an envelope.\n * (This function was mostly created because working with envelope types is painful at the moment)\n *\n * If the callback returns true, the rest of the items will be skipped.\n */\nexport function forEachEnvelopeItem(\n envelope: Envelope,\n callback: (envelopeItem: E[1][number], envelopeItemType: E[1][number][0]['type']) => boolean | void,\n): boolean {\n const envelopeItems = envelope[1];\n\n for (const envelopeItem of envelopeItems) {\n const envelopeItemType = envelopeItem[0].type;\n const result = callback(envelopeItem, envelopeItemType);\n\n if (result) {\n return true;\n }\n }\n\n return false;\n}\n\n/**\n * Returns true if the envelope contains any of the given envelope item types\n */\nexport function envelopeContainsItemType(envelope: Envelope, types: EnvelopeItemType[]): boolean {\n return forEachEnvelopeItem(envelope, (_, type) => types.includes(type));\n}\n\n/**\n * Encode a string to UTF8 array.\n */\nfunction encodeUTF8(input: string): Uint8Array {\n return GLOBAL_OBJ.__SENTRY__ && GLOBAL_OBJ.__SENTRY__.encodePolyfill\n ? GLOBAL_OBJ.__SENTRY__.encodePolyfill(input)\n : new TextEncoder().encode(input);\n}\n\n/**\n * Decode a UTF8 array to string.\n */\nfunction decodeUTF8(input: Uint8Array): string {\n return GLOBAL_OBJ.__SENTRY__ && GLOBAL_OBJ.__SENTRY__.decodePolyfill\n ? GLOBAL_OBJ.__SENTRY__.decodePolyfill(input)\n : new TextDecoder().decode(input);\n}\n\n/**\n * Serializes an envelope.\n */\nexport function serializeEnvelope(envelope: Envelope): string | Uint8Array {\n const [envHeaders, items] = envelope;\n\n // Initially we construct our envelope as a string and only convert to binary chunks if we encounter binary data\n let parts: string | Uint8Array[] = JSON.stringify(envHeaders);\n\n function append(next: string | Uint8Array): void {\n if (typeof parts === 'string') {\n parts = typeof next === 'string' ? parts + next : [encodeUTF8(parts), next];\n } else {\n parts.push(typeof next === 'string' ? encodeUTF8(next) : next);\n }\n }\n\n for (const item of items) {\n const [itemHeaders, payload] = item;\n\n append(`\\n${JSON.stringify(itemHeaders)}\\n`);\n\n if (typeof payload === 'string' || payload instanceof Uint8Array) {\n append(payload);\n } else {\n let stringifiedPayload: string;\n try {\n stringifiedPayload = JSON.stringify(payload);\n } catch (e) {\n // In case, despite all our efforts to keep `payload` circular-dependency-free, `JSON.strinify()` still\n // fails, we try again after normalizing it again with infinite normalization depth. This of course has a\n // performance impact but in this case a performance hit is better than throwing.\n stringifiedPayload = JSON.stringify(normalize(payload));\n }\n append(stringifiedPayload);\n }\n }\n\n return typeof parts === 'string' ? parts : concatBuffers(parts);\n}\n\nfunction concatBuffers(buffers: Uint8Array[]): Uint8Array {\n const totalLength = buffers.reduce((acc, buf) => acc + buf.length, 0);\n\n const merged = new Uint8Array(totalLength);\n let offset = 0;\n for (const buffer of buffers) {\n merged.set(buffer, offset);\n offset += buffer.length;\n }\n\n return merged;\n}\n\n/**\n * Parses an envelope\n */\nexport function parseEnvelope(env: string | Uint8Array): Envelope {\n let buffer = typeof env === 'string' ? encodeUTF8(env) : env;\n\n function readBinary(length: number): Uint8Array {\n const bin = buffer.subarray(0, length);\n // Replace the buffer with the remaining data excluding trailing newline\n buffer = buffer.subarray(length + 1);\n return bin;\n }\n\n function readJson(): T {\n let i = buffer.indexOf(0xa);\n // If we couldn't find a newline, we must have found the end of the buffer\n if (i < 0) {\n i = buffer.length;\n }\n\n return JSON.parse(decodeUTF8(readBinary(i))) as T;\n }\n\n const envelopeHeader = readJson();\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const items: [any, any][] = [];\n\n while (buffer.length) {\n const itemHeader = readJson();\n const binaryLength = typeof itemHeader.length === 'number' ? itemHeader.length : undefined;\n\n items.push([itemHeader, binaryLength ? readBinary(binaryLength) : readJson()]);\n }\n\n return [envelopeHeader, items];\n}\n\n/**\n * Creates envelope item for a single span\n */\nexport function createSpanEnvelopeItem(spanJson: Partial): SpanItem {\n const spanHeaders: SpanItem[0] = {\n type: 'span',\n };\n\n return [spanHeaders, spanJson];\n}\n\n/**\n * Creates attachment envelope items\n */\nexport function createAttachmentEnvelopeItem(attachment: Attachment): AttachmentItem {\n const buffer = typeof attachment.data === 'string' ? encodeUTF8(attachment.data) : attachment.data;\n\n return [\n dropUndefinedKeys({\n type: 'attachment',\n length: buffer.length,\n filename: attachment.filename,\n content_type: attachment.contentType,\n attachment_type: attachment.attachmentType,\n }),\n buffer,\n ];\n}\n\nconst ITEM_TYPE_TO_DATA_CATEGORY_MAP: Record = {\n session: 'session',\n sessions: 'session',\n attachment: 'attachment',\n transaction: 'transaction',\n event: 'error',\n client_report: 'internal',\n user_report: 'default',\n profile: 'profile',\n profile_chunk: 'profile',\n replay_event: 'replay',\n replay_recording: 'replay',\n check_in: 'monitor',\n feedback: 'feedback',\n span: 'span',\n statsd: 'metric_bucket',\n};\n\n/**\n * Maps the type of an envelope item to a data category.\n */\nexport function envelopeItemTypeToDataCategory(type: EnvelopeItemType): DataCategory {\n return ITEM_TYPE_TO_DATA_CATEGORY_MAP[type];\n}\n\n/** Extracts the minimal SDK info from the metadata or an events */\nexport function getSdkMetadataForEnvelopeHeader(metadataOrEvent?: SdkMetadata | Event): SdkInfo | undefined {\n if (!metadataOrEvent || !metadataOrEvent.sdk) {\n return;\n }\n const { name, version } = metadataOrEvent.sdk;\n return { name, version };\n}\n\n/**\n * Creates event envelope headers, based on event, sdk info and tunnel\n * Note: This function was extracted from the core package to make it available in Replay\n */\nexport function createEventEnvelopeHeaders(\n event: Event,\n sdkInfo: SdkInfo | undefined,\n tunnel: string | undefined,\n dsn?: DsnComponents,\n): EventEnvelopeHeaders {\n const dynamicSamplingContext = event.sdkProcessingMetadata && event.sdkProcessingMetadata.dynamicSamplingContext;\n return {\n event_id: event.event_id as string,\n sent_at: new Date().toISOString(),\n ...(sdkInfo && { sdk: sdkInfo }),\n ...(!!tunnel && dsn && { dsn: dsnToString(dsn) }),\n ...(dynamicSamplingContext && {\n trace: dropUndefinedKeys({ ...dynamicSamplingContext }),\n }),\n 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