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Base implementation for all Sentry JavaScript SDKs
Object.defineProperty(exports, '__esModule', { value: true });
const utils = require('@sentry/utils');
const api = require('./api.js');
const currentScopes = require('./currentScopes.js');
const debugBuild = require('./debug-build.js');
const envelope = require('./envelope.js');
const integration = require('./integration.js');
const session = require('./session.js');
const dynamicSamplingContext = require('./tracing/dynamicSamplingContext.js');
const parseSampleRate = require('./utils/parseSampleRate.js');
const prepareEvent = require('./utils/prepareEvent.js');
const ALREADY_SEEN_ERROR = "Not capturing exception because it's already been captured.";
/**
* Base implementation for all JavaScript SDK clients.
*
* Call the constructor with the corresponding options
* specific to the client subclass. To access these options later, use
* {@link Client.getOptions}.
*
* If a Dsn is specified in the options, it will be parsed and stored. Use
* {@link Client.getDsn} to retrieve the Dsn at any moment. In case the Dsn is
* invalid, the constructor will throw a {@link SentryException}. Note that
* without a valid Dsn, the SDK will not send any events to Sentry.
*
* Before sending an event, it is passed through
* {@link BaseClient._prepareEvent} to add SDK information and scope data
* (breadcrumbs and context). To add more custom information, override this
* method and extend the resulting prepared event.
*
* To issue automatically created events (e.g. via instrumentation), use
* {@link Client.captureEvent}. It will prepare the event and pass it through
* the callback lifecycle. To issue auto-breadcrumbs, use
* {@link Client.addBreadcrumb}.
*
* @example
* class NodeClient extends BaseClient {
* public constructor(options: NodeOptions) {
* super(options);
* }
*
* // ...
* }
*/
class BaseClient {
/** Options passed to the SDK. */
/** The client Dsn, if specified in options. Without this Dsn, the SDK will be disabled. */
/** Array of set up integrations. */
/** Number of calls being processed */
/** Holds flushable */
// eslint-disable-next-line @typescript-eslint/ban-types
/**
* Initializes this client instance.
*
* @param options Options for the client.
*/
constructor(options) {
this._options = options;
this._integrations = {};
this._numProcessing = 0;
this._outcomes = {};
this._hooks = {};
this._eventProcessors = [];
if (options.dsn) {
this._dsn = utils.makeDsn(options.dsn);
} else {
debugBuild.DEBUG_BUILD && utils.logger.warn('No DSN provided, client will not send events.');
}
if (this._dsn) {
const url = api.getEnvelopeEndpointWithUrlEncodedAuth(
this._dsn,
options.tunnel,
options._metadata ? options._metadata.sdk : undefined,
);
this._transport = options.transport({
tunnel: this._options.tunnel,
recordDroppedEvent: this.recordDroppedEvent.bind(this),
...options.transportOptions,
url,
});
}
}
/**
* @inheritDoc
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
captureException(exception, hint, scope) {
const eventId = utils.uuid4();
// ensure we haven't captured this very object before
if (utils.checkOrSetAlreadyCaught(exception)) {
debugBuild.DEBUG_BUILD && utils.logger.log(ALREADY_SEEN_ERROR);
return eventId;
}
const hintWithEventId = {
event_id: eventId,
...hint,
};
this._process(
this.eventFromException(exception, hintWithEventId).then(event =>
this._captureEvent(event, hintWithEventId, scope),
),
);
return hintWithEventId.event_id;
}
/**
* @inheritDoc
*/
captureMessage(
message,
level,
hint,
currentScope,
) {
const hintWithEventId = {
event_id: utils.uuid4(),
...hint,
};
const eventMessage = utils.isParameterizedString(message) ? message : String(message);
const promisedEvent = utils.isPrimitive(message)
? this.eventFromMessage(eventMessage, level, hintWithEventId)
: this.eventFromException(message, hintWithEventId);
this._process(promisedEvent.then(event => this._captureEvent(event, hintWithEventId, currentScope)));
return hintWithEventId.event_id;
}
/**
* @inheritDoc
*/
captureEvent(event, hint, currentScope) {
const eventId = utils.uuid4();
// ensure we haven't captured this very object before
if (hint && hint.originalException && utils.checkOrSetAlreadyCaught(hint.originalException)) {
debugBuild.DEBUG_BUILD && utils.logger.log(ALREADY_SEEN_ERROR);
return eventId;
}
const hintWithEventId = {
event_id: eventId,
...hint,
};
const sdkProcessingMetadata = event.sdkProcessingMetadata || {};
const capturedSpanScope = sdkProcessingMetadata.capturedSpanScope;
this._process(this._captureEvent(event, hintWithEventId, capturedSpanScope || currentScope));
return hintWithEventId.event_id;
}
/**
* @inheritDoc
*/
captureSession(session$1) {
if (!(typeof session$1.release === 'string')) {
debugBuild.DEBUG_BUILD && utils.logger.warn('Discarded session because of missing or non-string release');
} else {
this.sendSession(session$1);
// After sending, we set init false to indicate it's not the first occurrence
session.updateSession(session$1, { init: false });
}
}
/**
* @inheritDoc
*/
getDsn() {
return this._dsn;
}
/**
* @inheritDoc
*/
getOptions() {
return this._options;
}
/**
* @see SdkMetadata in @sentry/types
*
* @return The metadata of the SDK
*/
getSdkMetadata() {
return this._options._metadata;
}
/**
* @inheritDoc
*/
getTransport() {
return this._transport;
}
/**
* @inheritDoc
*/
flush(timeout) {
const transport = this._transport;
if (transport) {
this.emit('flush');
return this._isClientDoneProcessing(timeout).then(clientFinished => {
return transport.flush(timeout).then(transportFlushed => clientFinished && transportFlushed);
});
} else {
return utils.resolvedSyncPromise(true);
}
}
/**
* @inheritDoc
*/
close(timeout) {
return this.flush(timeout).then(result => {
this.getOptions().enabled = false;
this.emit('close');
return result;
});
}
/** Get all installed event processors. */
getEventProcessors() {
return this._eventProcessors;
}
/** @inheritDoc */
addEventProcessor(eventProcessor) {
this._eventProcessors.push(eventProcessor);
}
/** @inheritdoc */
init() {
if (
this._isEnabled() ||
// Force integrations to be setup even if no DSN was set when we have
// Spotlight enabled. This is particularly important for browser as we
// don't support the `spotlight` option there and rely on the users
// adding the `spotlightBrowserIntegration()` to their integrations which
// wouldn't get initialized with the check below when there's no DSN set.
this._options.integrations.some(({ name }) => name.startsWith('Spotlight'))
) {
this._setupIntegrations();
}
}
/**
* Gets an installed integration by its name.
*
* @returns The installed integration or `undefined` if no integration with that `name` was installed.
*/
getIntegrationByName(integrationName) {
return this._integrations[integrationName] ;
}
/**
* @inheritDoc
*/
addIntegration(integration$1) {
const isAlreadyInstalled = this._integrations[integration$1.name];
// This hook takes care of only installing if not already installed
integration.setupIntegration(this, integration$1, this._integrations);
// Here we need to check manually to make sure to not run this multiple times
if (!isAlreadyInstalled) {
integration.afterSetupIntegrations(this, [integration$1]);
}
}
/**
* @inheritDoc
*/
sendEvent(event, hint = {}) {
this.emit('beforeSendEvent', event, hint);
let env = envelope.createEventEnvelope(event, this._dsn, this._options._metadata, this._options.tunnel);
for (const attachment of hint.attachments || []) {
env = utils.addItemToEnvelope(env, utils.createAttachmentEnvelopeItem(attachment));
}
const promise = this.sendEnvelope(env);
if (promise) {
promise.then(sendResponse => this.emit('afterSendEvent', event, sendResponse), null);
}
}
/**
* @inheritDoc
*/
sendSession(session) {
const env = envelope.createSessionEnvelope(session, this._dsn, this._options._metadata, this._options.tunnel);
// sendEnvelope should not throw
// eslint-disable-next-line @typescript-eslint/no-floating-promises
this.sendEnvelope(env);
}
/**
* @inheritDoc
*/
recordDroppedEvent(reason, category, eventOrCount) {
if (this._options.sendClientReports) {
// TODO v9: We do not need the `event` passed as third argument anymore, and can possibly remove this overload
// If event is passed as third argument, we assume this is a count of 1
const count = typeof eventOrCount === 'number' ? eventOrCount : 1;
// We want to track each category (error, transaction, session, replay_event) separately
// but still keep the distinction between different type of outcomes.
// We could use nested maps, but it's much easier to read and type this way.
// A correct type for map-based implementation if we want to go that route
// would be `Partial>>>`
// With typescript 4.1 we could even use template literal types
const key = `${reason}:${category}`;
debugBuild.DEBUG_BUILD && utils.logger.log(`Recording outcome: "${key}"${count > 1 ? ` (${count} times)` : ''}`);
this._outcomes[key] = (this._outcomes[key] || 0) + count;
}
}
// Keep on() & emit() signatures in sync with types' client.ts interface
/* eslint-disable @typescript-eslint/unified-signatures */
/** @inheritdoc */
/** @inheritdoc */
on(hook, callback) {
const hooks = (this._hooks[hook] = this._hooks[hook] || []);
// @ts-expect-error We assue the types are correct
hooks.push(callback);
// This function returns a callback execution handler that, when invoked,
// deregisters a callback. This is crucial for managing instances where callbacks
// need to be unregistered to prevent self-referencing in callback closures,
// ensuring proper garbage collection.
return () => {
// @ts-expect-error We assue the types are correct
const cbIndex = hooks.indexOf(callback);
if (cbIndex > -1) {
hooks.splice(cbIndex, 1);
}
};
}
/** @inheritdoc */
/** @inheritdoc */
emit(hook, ...rest) {
const callbacks = this._hooks[hook];
if (callbacks) {
callbacks.forEach(callback => callback(...rest));
}
}
/**
* @inheritdoc
*/
sendEnvelope(envelope) {
this.emit('beforeEnvelope', envelope);
if (this._isEnabled() && this._transport) {
return this._transport.send(envelope).then(null, reason => {
debugBuild.DEBUG_BUILD && utils.logger.error('Error while sending event:', reason);
return reason;
});
}
debugBuild.DEBUG_BUILD && utils.logger.error('Transport disabled');
return utils.resolvedSyncPromise({});
}
/* eslint-enable @typescript-eslint/unified-signatures */
/** Setup integrations for this client. */
_setupIntegrations() {
const { integrations } = this._options;
this._integrations = integration.setupIntegrations(this, integrations);
integration.afterSetupIntegrations(this, integrations);
}
/** Updates existing session based on the provided event */
_updateSessionFromEvent(session$1, event) {
let crashed = false;
let errored = false;
const exceptions = event.exception && event.exception.values;
if (exceptions) {
errored = true;
for (const ex of exceptions) {
const mechanism = ex.mechanism;
if (mechanism && mechanism.handled === false) {
crashed = true;
break;
}
}
}
// A session is updated and that session update is sent in only one of the two following scenarios:
// 1. Session with non terminal status and 0 errors + an error occurred -> Will set error count to 1 and send update
// 2. Session with non terminal status and 1 error + a crash occurred -> Will set status crashed and send update
const sessionNonTerminal = session$1.status === 'ok';
const shouldUpdateAndSend = (sessionNonTerminal && session$1.errors === 0) || (sessionNonTerminal && crashed);
if (shouldUpdateAndSend) {
session.updateSession(session$1, {
...(crashed && { status: 'crashed' }),
errors: session$1.errors || Number(errored || crashed),
});
this.captureSession(session$1);
}
}
/**
* Determine if the client is finished processing. Returns a promise because it will wait `timeout` ms before saying
* "no" (resolving to `false`) in order to give the client a chance to potentially finish first.
*
* @param timeout The time, in ms, after which to resolve to `false` if the client is still busy. Passing `0` (or not
* passing anything) will make the promise wait as long as it takes for processing to finish before resolving to
* `true`.
* @returns A promise which will resolve to `true` if processing is already done or finishes before the timeout, and
* `false` otherwise
*/
_isClientDoneProcessing(timeout) {
return new utils.SyncPromise(resolve => {
let ticked = 0;
const tick = 1;
const interval = setInterval(() => {
if (this._numProcessing == 0) {
clearInterval(interval);
resolve(true);
} else {
ticked += tick;
if (timeout && ticked >= timeout) {
clearInterval(interval);
resolve(false);
}
}
}, tick);
});
}
/** Determines whether this SDK is enabled and a transport is present. */
_isEnabled() {
return this.getOptions().enabled !== false && this._transport !== undefined;
}
/**
* Adds common information to events.
*
* The information includes release and environment from `options`,
* breadcrumbs and context (extra, tags and user) from the scope.
*
* Information that is already present in the event is never overwritten. For
* nested objects, such as the context, keys are merged.
*
* @param event The original event.
* @param hint May contain additional information about the original exception.
* @param currentScope A scope containing event metadata.
* @returns A new event with more information.
*/
_prepareEvent(
event,
hint,
currentScope,
isolationScope = currentScopes.getIsolationScope(),
) {
const options = this.getOptions();
const integrations = Object.keys(this._integrations);
if (!hint.integrations && integrations.length > 0) {
hint.integrations = integrations;
}
this.emit('preprocessEvent', event, hint);
if (!event.type) {
isolationScope.setLastEventId(event.event_id || hint.event_id);
}
return prepareEvent.prepareEvent(options, event, hint, currentScope, this, isolationScope).then(evt => {
if (evt === null) {
return evt;
}
const propagationContext = {
...isolationScope.getPropagationContext(),
...(currentScope ? currentScope.getPropagationContext() : undefined),
};
const trace = evt.contexts && evt.contexts.trace;
if (!trace && propagationContext) {
const { traceId: trace_id, spanId, parentSpanId, dsc } = propagationContext;
evt.contexts = {
trace: utils.dropUndefinedKeys({
trace_id,
span_id: spanId,
parent_span_id: parentSpanId,
}),
...evt.contexts,
};
const dynamicSamplingContext$1 = dsc ? dsc : dynamicSamplingContext.getDynamicSamplingContextFromClient(trace_id, this);
evt.sdkProcessingMetadata = {
dynamicSamplingContext: dynamicSamplingContext$1,
...evt.sdkProcessingMetadata,
};
}
return evt;
});
}
/**
* Processes the event and logs an error in case of rejection
* @param event
* @param hint
* @param scope
*/
_captureEvent(event, hint = {}, scope) {
return this._processEvent(event, hint, scope).then(
finalEvent => {
return finalEvent.event_id;
},
reason => {
if (debugBuild.DEBUG_BUILD) {
// If something's gone wrong, log the error as a warning. If it's just us having used a `SentryError` for
// control flow, log just the message (no stack) as a log-level log.
const sentryError = reason ;
if (sentryError.logLevel === 'log') {
utils.logger.log(sentryError.message);
} else {
utils.logger.warn(sentryError);
}
}
return undefined;
},
);
}
/**
* Processes an event (either error or message) and sends it to Sentry.
*
* This also adds breadcrumbs and context information to the event. However,
* platform specific meta data (such as the User's IP address) must be added
* by the SDK implementor.
*
*
* @param event The event to send to Sentry.
* @param hint May contain additional information about the original exception.
* @param currentScope A scope containing event metadata.
* @returns A SyncPromise that resolves with the event or rejects in case event was/will not be send.
*/
_processEvent(event, hint, currentScope) {
const options = this.getOptions();
const { sampleRate } = options;
const isTransaction = isTransactionEvent(event);
const isError = isErrorEvent(event);
const eventType = event.type || 'error';
const beforeSendLabel = `before send for type \`${eventType}\``;
// 1.0 === 100% events are sent
// 0.0 === 0% events are sent
// Sampling for transaction happens somewhere else
const parsedSampleRate = typeof sampleRate === 'undefined' ? undefined : parseSampleRate.parseSampleRate(sampleRate);
if (isError && typeof parsedSampleRate === 'number' && Math.random() > parsedSampleRate) {
this.recordDroppedEvent('sample_rate', 'error', event);
return utils.rejectedSyncPromise(
new utils.SentryError(
`Discarding event because it's not included in the random sample (sampling rate = ${sampleRate})`,
'log',
),
);
}
const dataCategory = eventType === 'replay_event' ? 'replay' : eventType;
const sdkProcessingMetadata = event.sdkProcessingMetadata || {};
const capturedSpanIsolationScope = sdkProcessingMetadata.capturedSpanIsolationScope;
return this._prepareEvent(event, hint, currentScope, capturedSpanIsolationScope)
.then(prepared => {
if (prepared === null) {
this.recordDroppedEvent('event_processor', dataCategory, event);
throw new utils.SentryError('An event processor returned `null`, will not send event.', 'log');
}
const isInternalException = hint.data && (hint.data ).__sentry__ === true;
if (isInternalException) {
return prepared;
}
const result = processBeforeSend(this, options, prepared, hint);
return _validateBeforeSendResult(result, beforeSendLabel);
})
.then(processedEvent => {
if (processedEvent === null) {
this.recordDroppedEvent('before_send', dataCategory, event);
if (isTransaction) {
const spans = event.spans || [];
// the transaction itself counts as one span, plus all the child spans that are added
const spanCount = 1 + spans.length;
this.recordDroppedEvent('before_send', 'span', spanCount);
}
throw new utils.SentryError(`${beforeSendLabel} returned \`null\`, will not send event.`, 'log');
}
const session = currentScope && currentScope.getSession();
if (!isTransaction && session) {
this._updateSessionFromEvent(session, processedEvent);
}
if (isTransaction) {
const spanCountBefore =
(processedEvent.sdkProcessingMetadata && processedEvent.sdkProcessingMetadata.spanCountBeforeProcessing) ||
0;
const spanCountAfter = processedEvent.spans ? processedEvent.spans.length : 0;
const droppedSpanCount = spanCountBefore - spanCountAfter;
if (droppedSpanCount > 0) {
this.recordDroppedEvent('before_send', 'span', droppedSpanCount);
}
}
// None of the Sentry built event processor will update transaction name,
// so if the transaction name has been changed by an event processor, we know
// it has to come from custom event processor added by a user
const transactionInfo = processedEvent.transaction_info;
if (isTransaction && transactionInfo && processedEvent.transaction !== event.transaction) {
const source = 'custom';
processedEvent.transaction_info = {
...transactionInfo,
source,
};
}
this.sendEvent(processedEvent, hint);
return processedEvent;
})
.then(null, reason => {
if (reason instanceof utils.SentryError) {
throw reason;
}
this.captureException(reason, {
data: {
__sentry__: true,
},
originalException: reason,
});
throw new utils.SentryError(
`Event processing pipeline threw an error, original event will not be sent. Details have been sent as a new event.\nReason: ${reason}`,
);
});
}
/**
* Occupies the client with processing and event
*/
_process(promise) {
this._numProcessing++;
void promise.then(
value => {
this._numProcessing--;
return value;
},
reason => {
this._numProcessing--;
return reason;
},
);
}
/**
* Clears outcomes on this client and returns them.
*/
_clearOutcomes() {
const outcomes = this._outcomes;
this._outcomes = {};
return Object.entries(outcomes).map(([key, quantity]) => {
const [reason, category] = key.split(':') ;
return {
reason,
category,
quantity,
};
});
}
/**
* Sends client reports as an envelope.
*/
_flushOutcomes() {
debugBuild.DEBUG_BUILD && utils.logger.log('Flushing outcomes...');
const outcomes = this._clearOutcomes();
if (outcomes.length === 0) {
debugBuild.DEBUG_BUILD && utils.logger.log('No outcomes to send');
return;
}
// This is really the only place where we want to check for a DSN and only send outcomes then
if (!this._dsn) {
debugBuild.DEBUG_BUILD && utils.logger.log('No dsn provided, will not send outcomes');
return;
}
debugBuild.DEBUG_BUILD && utils.logger.log('Sending outcomes:', outcomes);
const envelope = utils.createClientReportEnvelope(outcomes, this._options.tunnel && utils.dsnToString(this._dsn));
// sendEnvelope should not throw
// eslint-disable-next-line @typescript-eslint/no-floating-promises
this.sendEnvelope(envelope);
}
/**
* @inheritDoc
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
}
/**
* Verifies that return value of configured `beforeSend` or `beforeSendTransaction` is of expected type, and returns the value if so.
*/
function _validateBeforeSendResult(
beforeSendResult,
beforeSendLabel,
) {
const invalidValueError = `${beforeSendLabel} must return \`null\` or a valid event.`;
if (utils.isThenable(beforeSendResult)) {
return beforeSendResult.then(
event => {
if (!utils.isPlainObject(event) && event !== null) {
throw new utils.SentryError(invalidValueError);
}
return event;
},
e => {
throw new utils.SentryError(`${beforeSendLabel} rejected with ${e}`);
},
);
} else if (!utils.isPlainObject(beforeSendResult) && beforeSendResult !== null) {
throw new utils.SentryError(invalidValueError);
}
return beforeSendResult;
}
/**
* Process the matching `beforeSendXXX` callback.
*/
function processBeforeSend(
client,
options,
event,
hint,
) {
const { beforeSend, beforeSendTransaction, beforeSendSpan } = options;
if (isErrorEvent(event) && beforeSend) {
return beforeSend(event, hint);
}
if (isTransactionEvent(event)) {
if (event.spans && beforeSendSpan) {
const processedSpans = [];
for (const span of event.spans) {
const processedSpan = beforeSendSpan(span);
if (processedSpan) {
processedSpans.push(processedSpan);
} else {
client.recordDroppedEvent('before_send', 'span');
}
}
event.spans = processedSpans;
}
if (beforeSendTransaction) {
if (event.spans) {
// We store the # of spans before processing in SDK metadata,
// so we can compare it afterwards to determine how many spans were dropped
const spanCountBefore = event.spans.length;
event.sdkProcessingMetadata = {
...event.sdkProcessingMetadata,
spanCountBeforeProcessing: spanCountBefore,
};
}
return beforeSendTransaction(event, hint);
}
}
return event;
}
function isErrorEvent(event) {
return event.type === undefined;
}
function isTransactionEvent(event) {
return event.type === 'transaction';
}
exports.BaseClient = BaseClient;
//# sourceMappingURL=baseclient.js.map