webconnectivitylte

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 Go to latest Published: Dec 13, 2023 License: GPL-3.0 Imports: 31 Imported by: 1

README

webconnectivity

This directory contains a new implementation of Web Connectivity.

As of 2022-09-15, this code is experimental and is not selected by default when you run the websites group. You can select this implementation with miniooni using miniooni web_connectivity@v0.5 from the command line.

Issue #2237 explains the rationale behind writing this new implementation.

Implementation overview

graph TD;
    measurer.go --> dnsresolvers.go;
	dnsresolvers.go --> control.go;
	dnsresolvers.go --> cleartext.go;
	dnsresolvers.go --> secure.go;
	control.go --> cleartext.go;
	control.go --> secure.go;
	cleartext.go --> dnsresolvers.go;
	secure.go --> dnsresolvers.go;
	measurer.go --> analysiscore.go;

Figure I. Relationship between files in this implementation

The experiment measures a single URL at a time. The OONI Engine invokes the Run method inside the measurer.go file.

The first task that Run starts deals with DNS and lives in the dnsresolvers.go file. This task is responsible for resolving the domain inside the URL into 0..N IP addresses. The domain resolution includes the system resolver and a DNS-over-UDP resolver. The implementaion may do more than that, but this is the bare minimum we're feeling like documenting right now. (We need to experiment a bit more to understand what else we can do there, hence the code is probably doing more than just that.)

Once we know the 0..N IP addresses for the domain we do the following:

  1. start a background task to communicate with the Web Connectivity test helper, using code inside control.go;

  2. start an endpoint measurement task for each IP adddress (which of course only happens when we know at least one addr).

Regarding starting endpoint measurements, we follow this policy:

  1. if the original URL is http://... then, for each address, we start an HTTP task using port 80 and an HTTPS task using 443.

  2. if it's https://..., then we only start HTTPS tasks.

HTTP tasks are implemented by cleartextflow.go while the HTTPS tasks live in secureflow.go.

An HTTP task does the following:

  1. TCP connect;

  2. additionally, the first task to establish a connection also performs a GET request to fetch a webpage (we cannot GET for all connections, because that would be websteps and would require a different data format).

An HTTPS task does the following:

  1. TCP connect;

  2. TLS handshake;

  3. additionally, the first task to handshake also performs a GET request to fetch a webpage iff the input URL was https://... (we cannot GET for all connections, because that would be websteps and would require a different data format).

If fetching the webpage returns a redirect, we start a new DNS task passing it the redirect URL as the new URL to measure, thus transferring the control again to dnsresolvers.go. We do not call the test helper again when this happens, though. The Web Connectivity test helper already follows the whole redirect chain, so we would need to change the test helper to get information on each flow. If we fetched more than one webpage per redirect chain, this experiment would be websteps.

Additionally, when the test helper terminates, control.go may run HTTP and/or HTTPS tasks (when applicable) for new IP addresses discovered using the test helper that were previously unknown to the probe, thus collecting extra information.

When several connections are racing to fetch a webpage, we need specific logic to choose which of them to give the permission to actually fetch the webpage. This logic lives inside the priority.go file.

When all tasks complete, either because we reach a final state or because we have followed too many redirects, we use code inside analysiscore.go to compute the top-level test keys. We emit the blocking and accessible keys we emitted before as well as new keys, prefixed by x_ to indicate that they're experimental.

Limitations and next steps

Further changes are probably possible. Departing too radically from the Web Connectivity model, though, will lead us to have a websteps implementation (but then the data model would most likely be different).

Documentation

Overview

Package webconnectivitylte implements the web_connectivity experiment.

Spec: https://github.com/ooni/spec/blob/master/nettests/ts-017-web-connectivity.md.

This implementation, in particular, contains extensions over the original model, which we document at https://github.com/ooni/probe/issues/2237.

Index

Constants

View Source 
const (
	// AnalysisDNSBogon indicates we got any bogon reply
	AnalysisDNSBogon = 1 << iota

	// AnalysisDNSUnexpectedFailure indicates the TH could
	// resolve a domain while the probe couldn't
	AnalysisDNSUnexpectedFailure

	// AnalysisDNSUnexpectedAddrs indicates the TH resolved
	// different addresses from the probe
	AnalysisDNSUnexpectedAddrs
)
View Source 
const (
	// DNSAddrFlagSystemResolver means we discovered this addr using the system resolver.
	DNSAddrFlagSystemResolver = 1 << iota

	// DNSAddrFlagUDP means we discovered this addr using the UDP resolver.
	DNSAddrFlagUDP

	// DNSAddrFlagHTTPS means we discovered this addr using the DNS-over-HTTPS resolver.
	DNSAddrFlagHTTPS
)

Variables

View Source 
var AnalysisEngineFn func(tk *TestKeys, logger model.Logger) = AnalysisEngineClassic

AnalysisEngineFn is the function that runs the analysis engine for processing and scoring measurements collected by LTE.

View Source 
var DNSWhoamiSingleton = &DNSWhoamiService{
	mu:       &sync.Mutex{},
	systemv4: []DNSWhoamiInfoEntry{},
	udpv4:    map[string][]DNSWhoamiInfoEntry{},
}

DNSWhoamiSingleton is the DNSWhoamiService singleton.

View Source 
var OpportunisticDNSOverHTTPSSingleton = &OpportunisticDNSOverHTTPS{
	interval: 0,
	mu:       &sync.Mutex{},
	rnd:      rand.New(rand.NewSource(time.Now().UnixNano())),
	t:        time.Time{},
	urls: []string{
		"https://mozilla.cloudflare-dns.com/dns-query",
		"https://dns.nextdns.io/dns-query",
		"https://dns.google/dns-query",
		"https://dns.quad9.net/dns-query",
	},
}

OpportunisticDNSOverHTTPSSingleton is the singleton used to keep track of the opportunistic DNS-over-HTTPS measurements state.

Functions

func AnalysisEngineClassic added in v0.27.0 

func AnalysisEngineClassic(tk *TestKeys, logger model.Logger)

AnalysisEngineClassic is an alternative analysis engine that aims to produce results that are backward compatible with Web Connectivity v0.4.

func AnalysisEngineOrig added in v0.27.0 

func AnalysisEngineOrig(tk *TestKeys, logger model.Logger)

AnalysisEngineOrig is the original analysis engine we wrote for LTE. This engine aims to detect and report about all the possible ways in which the measured website is blocked. As of 2023-11-30, we still consider this engine experimental.

func NewExperimentMeasurer 

func NewExperimentMeasurer(config *Config) model.ExperimentMeasurer

NewExperimentMeasurer creates a new model.ExperimentMeasurer.

func StreamAllContext 

func StreamAllContext(ctx context.Context, reader io.Reader) ([]byte, error)

StreamAllContext streams from the given reader [r] until interrupted by [ctx] or when [r] hits the EOF.

This function runs a background goroutine that should exit as soon as [ctx] is done or when [reader] is closed, if applicable.

This function transforms an errors.Is(err, io.EOF) to a nil error such as the standard library's ReadAll does.

This function might return a non-zero-length buffer along with an non-nil error in the case in which we could only read a portion of the body and then we were interrupted by the error.

Types

type CleartextFlow 

type CleartextFlow struct {
	// Address is the MANDATORY address to connect to.
	Address string

	// DNSCache is the MANDATORY DNS cache.
	DNSCache *DNSCache

	// Depth is the OPTIONAL current redirect depth.
	Depth int64

	// IDGenerator is the MANDATORY atomic int64 to generate task IDs.
	IDGenerator *atomic.Int64

	// Logger is the MANDATORY logger to use.
	Logger model.Logger

	// NumRedirects it the MANDATORY counter of the number of redirects.
	NumRedirects *NumRedirects

	// TestKeys is MANDATORY and contains the TestKeys.
	TestKeys *TestKeys

	// ZeroTime is the MANDATORY measurement's zero time.
	ZeroTime time.Time

	// WaitGroup is the MANDATORY wait group this task belongs to.
	WaitGroup *sync.WaitGroup

	// CookieJar contains the OPTIONAL cookie jar, used for redirects.
	CookieJar http.CookieJar

	// FollowRedirects is OPTIONAL and instructs this flow
	// to follow HTTP redirects (if any).
	FollowRedirects bool

	// HostHeader is the OPTIONAL host header to use.
	HostHeader string

	// PrioSelector is the OPTIONAL priority selector to use to determine
	// whether this flow is allowed to fetch the webpage.
	PrioSelector *prioritySelector

	// Referer contains the OPTIONAL referer, used for redirects.
	Referer string

	// UDPAddress is the OPTIONAL address of the UDP resolver to use. If this
	// field is not set we use a default one (e.g., `8.8.8.8:53`).
	UDPAddress string

	// URLPath is the OPTIONAL URL path.
	URLPath string

	// URLRawQuery is the OPTIONAL URL raw query.
	URLRawQuery string
}

Measures HTTP endpoints.

The zero value of this structure IS NOT valid and you MUST initialize all the fields marked as MANDATORY before using this structure.

func (*CleartextFlow) Run 

func (t *CleartextFlow) Run(parentCtx context.Context, index int64) error

Run runs this task in the current goroutine.

func (*CleartextFlow) Start 

func (t *CleartextFlow) Start(ctx context.Context)

Start starts this task in a background goroutine.

type Config 

type Config struct {
	DNSOverUDPResolver string
}

Config contains webconnectivity experiment configuration.

type ConnPriorityLogEntry 

type ConnPriorityLogEntry struct {
	// Msg is the specific log entry
	Msg string `json:"msg"`

	// T is when this entry was generated
	T float64 `json:"t"`
}

ConnPriorityLogEntry is an entry in the TestKeys.ConnPriorityLog slice.

type Control 

type Control struct {
	// Addresses contains the MANDATORY addresses we've looked up.
	Addresses []string

	// ExtraMeasurementsStarter is MANDATORY and allows this struct to
	// start additional measurements using new TH-discovered addrs.
	ExtraMeasurementsStarter EndpointMeasurementsStarter

	// Logger is the MANDATORY logger to use.
	Logger model.Logger

	// PrioSelector is the OPTIONAL priority selector to use to determine
	// whether we will be allowed to fetch the webpage.
	PrioSelector *prioritySelector

	// TestKeys is MANDATORY and contains the TestKeys.
	TestKeys *TestKeys

	// Session is the MANDATORY session to use.
	Session model.ExperimentSession

	// TestHelpers is the MANDATORY list of test helpers.
	TestHelpers []model.OOAPIService

	// URL is the MANDATORY URL we are measuring.
	URL *url.URL

	// WaitGroup is the MANDATORY wait group this task belongs to.
	WaitGroup *sync.WaitGroup
}

Control issues a Control request and saves the results inside of the experiment's TestKeys.

The zero value of this structure IS NOT valid and you MUST initialize all the fields marked as MANDATORY before using this structure.

func (*Control) Run 

func (c *Control) Run(parentCtx context.Context)

Run runs this task until completion.

func (*Control) Start 

func (c *Control) Start(ctx context.Context)

Start starts this task in a background goroutine.

type DNSCache 

type DNSCache struct {
	// contains filtered or unexported fields
}

DNSCache wraps a model.Resolver to provide DNS caching.

The zero value is invalid; please, use NewDNSCache to construct.

func NewDNSCache 

func NewDNSCache() *DNSCache

NewDNSCache creates a new DNSCache instance.

func (*DNSCache) Get 

func (c *DNSCache) Get(domain string) ([]DNSEntry, bool)

Get gets values from the cache

func (*DNSCache) Set 

func (c *DNSCache) Set(domain string, values []DNSEntry)

Set inserts into the cache

type DNSEntry 

type DNSEntry struct {
	// Addr is the cached address
	Addr string

	// Flags contains flags
	Flags int64
}

DNSEntry is an entry in the DNS cache.

type DNSResolvers 

type DNSResolvers struct {
	// DNSCache is the MANDATORY DNS cache.
	DNSCache *DNSCache

	// Domain is the MANDATORY domain to resolve.
	Domain string

	// Depth is the OPTIONAL current redirect depth.
	Depth int64

	// IDGenerator is the MANDATORY atomic int64 to generate task IDs.
	IDGenerator *atomic.Int64

	// Logger is the MANDATORY logger to use.
	Logger model.Logger

	// NumRedirects it the MANDATORY counter of the number of redirects.
	NumRedirects *NumRedirects

	// TestKeys is MANDATORY and contains the TestKeys.
	TestKeys *TestKeys

	// URL is the MANDATORY URL we're measuring.
	URL *url.URL

	// ZeroTime is the MANDATORY zero time of the measurement.
	ZeroTime time.Time

	// WaitGroup is the MANDATORY wait group this task belongs to.
	WaitGroup *sync.WaitGroup

	// CookieJar contains the OPTIONAL cookie jar, used for redirects.
	CookieJar http.CookieJar

	// Referer contains the OPTIONAL referer, used for redirects.
	Referer string

	// Session is the OPTIONAL session. If the session is set, we will use
	// it to start the task that issues the control request. This request must
	// only be sent during the first iteration. It would be pointless to
	// issue such a request for subsequent redirects, because the TH will
	// always follow the redirect chain caused by the provided URL.
	Session model.ExperimentSession

	// TestHelpers is the OPTIONAL list of test helpers. If the list is
	// empty, we are not going to try to contact any test helper.
	TestHelpers []model.OOAPIService

	// UDPAddress is the OPTIONAL address of the UDP resolver to use. If this
	// field is not set we use a default one (e.g., `8.8.8.8:53`).
	UDPAddress string
}

Resolves the URL's domain using several resolvers.

The zero value of this structure IS NOT valid and you MUST initialize all the fields marked as MANDATORY before using this structure.

func (*DNSResolvers) Run 

func (t *DNSResolvers) Run(parentCtx context.Context)

Run runs this task in the current goroutine.

func (*DNSResolvers) Start 

func (t *DNSResolvers) Start(ctx context.Context)

Start starts this task in a background goroutine.

type DNSWhoamiInfo 

type DNSWhoamiInfo struct {
	// SystemV4 contains results related to the system resolver using IPv4.
	SystemV4 []DNSWhoamiInfoEntry `json:"system_v4"`

	// UDPv4 contains results related to an UDP resolver using IPv4.
	UDPv4 map[string][]DNSWhoamiInfoEntry `json:"udp_v4"`
}

DNSWhoamiInfo contains info about DNS whoami.

type DNSWhoamiInfoEntry 

type DNSWhoamiInfoEntry struct {
	// Address is the IP address
	Address string `json:"address"`
}

DNSWhoamiInfoEntry contains an entry for DNSWhoamiInfo.

type DNSWhoamiService 

type DNSWhoamiService struct {
	// contains filtered or unexported fields
}

DNSWhoamiService is a service that performs DNS whoami lookups.

func (*DNSWhoamiService) SystemV4 

func (svc *DNSWhoamiService) SystemV4(ctx context.Context) ([]DNSWhoamiInfoEntry, bool)

SystemV4 returns the results of querying using the system resolver and IPv4.

func (*DNSWhoamiService) UDPv4 

func (svc *DNSWhoamiService) UDPv4(ctx context.Context, address string) ([]DNSWhoamiInfoEntry, bool)

UDPv4 returns the results of querying a given UDP resolver and IPv4.

type EndpointMeasurementsStarter 

type EndpointMeasurementsStarter interface {
	// contains filtered or unexported methods
}

EndpointMeasurementsStarter is used by Control to start extra measurements using new IP addrs discovered by the TH.

type Measurer 

type Measurer struct {
	// Contains the experiment's config.
	Config *Config
}

Measurer for the web_connectivity experiment.

func (*Measurer) ExperimentName 

func (m *Measurer) ExperimentName() string

ExperimentName implements model.ExperimentMeasurer.

func (*Measurer) ExperimentVersion 

func (m *Measurer) ExperimentVersion() string

ExperimentVersion implements model.ExperimentMeasurer.

func (*Measurer) GetSummaryKeys 

func (m *Measurer) GetSummaryKeys(measurement *model.Measurement) (any, error)

GetSummaryKeys implements model.ExperimentMeasurer.GetSummaryKeys.

func (*Measurer) Run 

func (m *Measurer) Run(ctx context.Context, args *model.ExperimentArgs) error

Run implements model.ExperimentMeasurer.

type NumRedirects 

type NumRedirects struct {
	// contains filtered or unexported fields
}

NumRedirects counts the number of redirects left.

func NewNumRedirects 

func NewNumRedirects(n int64) *NumRedirects

NewNumRedirects creates a new NumRedirects instance.

func (*NumRedirects) CanFollowOneMoreRedirect 

func (nr *NumRedirects) CanFollowOneMoreRedirect() bool

CanFollowOneMoreRedirect returns true if we are allowed to follow one more redirect.

type OpportunisticDNSOverHTTPS 

type OpportunisticDNSOverHTTPS struct {
	// contains filtered or unexported fields
}

OpportunisticDNSOverHTTPS allows to perform opportunistic DNS-over-HTTPS measurements as part of Web Connectivity.

func (*OpportunisticDNSOverHTTPS) MaybeNextURL 

func (o *OpportunisticDNSOverHTTPS) MaybeNextURL() (string, bool)

MaybeNextURL returns the next URL to measure, if any. Our aim is to perform periodic, opportunistic DoH measurements as part of Web Connectivity.

type SecureFlow 

type SecureFlow struct {
	// Address is the MANDATORY address to connect to.
	Address string

	// DNSCache is the MANDATORY DNS cache.
	DNSCache *DNSCache

	// Depth is the OPTIONAL current redirect depth.
	Depth int64

	// IDGenerator is the MANDATORY atomic int64 to generate task IDs.
	IDGenerator *atomic.Int64

	// Logger is the MANDATORY logger to use.
	Logger model.Logger

	// NumRedirects it the MANDATORY counter of the number of redirects.
	NumRedirects *NumRedirects

	// TestKeys is MANDATORY and contains the TestKeys.
	TestKeys *TestKeys

	// ZeroTime is the MANDATORY measurement's zero time.
	ZeroTime time.Time

	// WaitGroup is the MANDATORY wait group this task belongs to.
	WaitGroup *sync.WaitGroup

	// ALPN is the OPTIONAL ALPN to use.
	ALPN []string

	// CookieJar contains the OPTIONAL cookie jar, used for redirects.
	CookieJar http.CookieJar

	// FollowRedirects is OPTIONAL and instructs this flow
	// to follow HTTP redirects (if any).
	FollowRedirects bool

	// HostHeader is the OPTIONAL host header to use.
	HostHeader string

	// PrioSelector is the OPTIONAL priority selector to use to determine
	// whether this flow is allowed to fetch the webpage.
	PrioSelector *prioritySelector

	// Referer contains the OPTIONAL referer, used for redirects.
	Referer string

	// SNI is the OPTIONAL SNI to use.
	SNI string

	// UDPAddress is the OPTIONAL address of the UDP resolver to use. If this
	// field is not set we use a default one (e.g., `8.8.8.8:53`).
	UDPAddress string

	// URLPath is the OPTIONAL URL path.
	URLPath string

	// URLRawQuery is the OPTIONAL URL raw query.
	URLRawQuery string
}

Measures HTTPS endpoints.

The zero value of this structure IS NOT valid and you MUST initialize all the fields marked as MANDATORY before using this structure.

func (*SecureFlow) Run 

func (t *SecureFlow) Run(parentCtx context.Context, index int64) error

Run runs this task in the current goroutine.

func (*SecureFlow) Start 

func (t *SecureFlow) Start(ctx context.Context)

Start starts this task in a background goroutine.

type SummaryKeys 

type SummaryKeys struct {
	// contains filtered or unexported fields
}

Summary contains the summary results.

Note that this structure is part of the ABI contract with ooniprobe therefore we should be careful when changing it.

type TestKeys 

type TestKeys struct {
	// Agent is the HTTP agent we use.
	Agent string `json:"agent"`

	// ClientResolver is the IPv4 of the resolver used by getaddrinfo.
	ClientResolver string `json:"client_resolver"`

	// Retries is a legacy field always set to nil by web_connectivity@v0.4.x
	Retries *int64 `json:"retries"`

	// SOCKSProxy is a legacy field always set to nil by web_connectivity@v0.4.x
	SOCKSProxy *string `json:"socksproxy"`

	// NetworkEvents contains network events.
	NetworkEvents []*model.ArchivalNetworkEvent `json:"network_events"`

	// DNSWhoami contains results of using the DNS whoami functionality for the
	// possibly cleartext resolvers that we're using.
	DNSWoami *DNSWhoamiInfo `json:"x_dns_whoami"`

	// DoH contains ancillary observations collected by DoH resolvers.
	DoH *TestKeysDoH `json:"x_doh"`

	// Do53 contains ancillary observations collected by Do53 resolvers.
	Do53 *TestKeysDo53 `json:"x_do53"`

	// DNSDuplicateResponses contains late/duplicate responses we didn't expect to receive from
	// a resolver (which may raise eyebrows if they're different).
	DNSDuplicateResponses []*model.ArchivalDNSLookupResult `json:"x_dns_duplicate_responses"`

	// Queries contains DNS queries.
	Queries []*model.ArchivalDNSLookupResult `json:"queries"`

	// Requests contains HTTP results.
	Requests []*model.ArchivalHTTPRequestResult `json:"requests"`

	// TCPConnect contains TCP connect results.
	TCPConnect []*model.ArchivalTCPConnectResult `json:"tcp_connect"`

	// TLSHandshakes contains TLS handshakes results.
	TLSHandshakes []*model.ArchivalTLSOrQUICHandshakeResult `json:"tls_handshakes"`

	// ControlRequest is the control request we sent.
	ControlRequest *webconnectivity.ControlRequest `json:"x_control_request"`

	// Control contains the TH's response.
	Control *webconnectivity.ControlResponse `json:"control"`

	// ConnPriorityLog explains why Web Connectivity chose to use a given
	// ready-to-use HTTP(S) connection among many.
	ConnPriorityLog []*ConnPriorityLogEntry `json:"x_conn_priority_log"`

	// ControlFailure contains the failure of the control experiment.
	ControlFailure *string `json:"control_failure"`

	// DNSFlags describes specific DNS anomalies we observed.
	DNSFlags int64 `json:"x_dns_flags"`

	// DNSExperimentFailure indicates whether there was a failure in any
	// of the DNS experiments we performed.
	DNSExperimentFailure *string `json:"dns_experiment_failure"`

	// DNSConsistency indicates whether there is consistency between
	// the TH's DNS results and the probe's DNS results.
	DNSConsistency optional.Value[string] `json:"dns_consistency"`

	// HTTPExperimentFailure indicates whether there was a failure in
	// the final HTTP request that we recorded.
	HTTPExperimentFailure optional.Value[string] `json:"http_experiment_failure"`

	// BlockingFlags explains why we think that the website is blocked.
	BlockingFlags int64 `json:"x_blocking_flags"`

	// NullNullFlags describes what the algorithm to avoid emitting
	// blocking = null, accessible = null measurements did
	NullNullFlags int64 `json:"x_null_null_flags"`

	// BodyProportion is the value used to compute BodyLength.
	BodyProportion float64 `json:"body_proportion"`

	// BodyLength match tells us whether the body length matches.
	BodyLengthMatch *bool `json:"body_length_match"`

	// HeadersMatch tells us whether the headers match.
	HeadersMatch *bool `json:"headers_match"`

	// StatusCodeMatch tells us whether the status code matches.
	StatusCodeMatch *bool `json:"status_code_match"`

	// TitleMatch tells us whether the title matches.
	TitleMatch *bool `json:"title_match"`

	// Blocking indicates the reason for blocking. This is notoriously a bad
	// type because it can be one of the following values:
	//
	// - "tcp_ip"
	// - "dns"
	// - "http-diff"
	// - "http-failure"
	// - false
	// - null
	//
	// In addition to having a ~bad type, this field has the issue that it
	// reduces the reason for blocking to an enum, whereas it's a set of flags,
	// hence we introduced the x_blocking_flags field.
	Blocking any `json:"blocking"`

	// Accessible indicates whether the resource is accessible. Possible
	// values for this field are: nil, true, and false.
	Accessible any `json:"accessible"`
	// contains filtered or unexported fields
}

TestKeys contains the results produced by web_connectivity.

func NewTestKeys 

func NewTestKeys() *TestKeys

NewTestKeys creates a new instance of TestKeys.

func (*TestKeys) AppendConnPriorityLogEntry 

func (tk *TestKeys) AppendConnPriorityLogEntry(entry *ConnPriorityLogEntry)

AppendConnPriorityLogEntry appends an entry to ConnPriorityLog.

func (*TestKeys) AppendDNSLateReplies 

func (tk *TestKeys) AppendDNSLateReplies(v ...*model.ArchivalDNSLookupResult)

AppendDNSLateReplies appends to DNSLateReplies.

func (*TestKeys) AppendNetworkEvents 

func (tk *TestKeys) AppendNetworkEvents(v ...*model.ArchivalNetworkEvent)

AppendNetworkEvents appends to NetworkEvents.

func (*TestKeys) AppendQueries 

func (tk *TestKeys) AppendQueries(v ...*model.ArchivalDNSLookupResult)

AppendQueries appends to Queries.

func (*TestKeys) AppendTCPConnectResults 

func (tk *TestKeys) AppendTCPConnectResults(v ...*model.ArchivalTCPConnectResult)

AppendTCPConnectResults appends to TCPConnect.

func (*TestKeys) AppendTLSHandshakes 

func (tk *TestKeys) AppendTLSHandshakes(v ...*model.ArchivalTLSOrQUICHandshakeResult)

AppendTLSHandshakes appends to TLSHandshakes.

func (*TestKeys) Finalize 

func (tk *TestKeys) Finalize(logger model.Logger)

Finalize performs any delayed computation on the test keys. This function must be called from the measurer after all the tasks have completed.

func (*TestKeys) PrependRequests added in v0.27.0 

func (tk *TestKeys) PrependRequests(v ...*model.ArchivalHTTPRequestResult)

PrependRequests prepends to Requests.

func (*TestKeys) SetClientResolver 

func (tk *TestKeys) SetClientResolver(value string)

SetClientResolver sets the ClientResolver field.

func (*TestKeys) SetControl 

func (tk *TestKeys) SetControl(v *webconnectivity.ControlResponse)

SetControl sets the value of Control.

func (*TestKeys) SetControlFailure 

func (tk *TestKeys) SetControlFailure(err error)

SetControlFailure sets the value of controlFailure.

func (*TestKeys) SetControlRequest 

func (tk *TestKeys) SetControlRequest(v *webconnectivity.ControlRequest)

SetControlRequest sets the value of controlRequest.

func (*TestKeys) SetFundamentalFailure 

func (tk *TestKeys) SetFundamentalFailure(err error)

SetFundamentalFailure sets the value of fundamentalFailure.

func (*TestKeys) WithDNSWhoami 

func (tk *TestKeys) WithDNSWhoami(fun func(*DNSWhoamiInfo))

WithDNSWhoami calls the given function with the mutex locked passing to it as argument the pointer to the DNSWhoami field.

func (*TestKeys) WithTestKeysDo53 

func (tk *TestKeys) WithTestKeysDo53(f func(*TestKeysDo53))

WithTestKeysDo53 calls the given function with the mutex locked passing to it as argument the pointer to the Do53 field.

func (*TestKeys) WithTestKeysDoH 

func (tk *TestKeys) WithTestKeysDoH(f func(*TestKeysDoH))

WithTestKeysDoH calls the given function with the mutex locked passing to it as argument the pointer to the DoH field.

type TestKeysDo53 

type TestKeysDo53 struct {
	// NetworkEvents contains network events.
	NetworkEvents []*model.ArchivalNetworkEvent `json:"network_events"`

	// Queries contains DNS queries.
	Queries []*model.ArchivalDNSLookupResult `json:"queries"`
}

TestKeysDo53 contains ancillary observations collected using Do53.

They are on a separate hierarchy to simplify processing.

type TestKeysDoH 

type TestKeysDoH struct {
	// NetworkEvents contains network events.
	NetworkEvents []*model.ArchivalNetworkEvent `json:"network_events"`

	// Queries contains DNS queries.
	Queries []*model.ArchivalDNSLookupResult `json:"queries"`

	// Requests contains HTTP results.
	Requests []*model.ArchivalHTTPRequestResult `json:"requests"`

	// TCPConnect contains TCP connect results.
	TCPConnect []*model.ArchivalTCPConnectResult `json:"tcp_connect"`

	// TLSHandshakes contains TLS handshakes results.
	TLSHandshakes []*model.ArchivalTLSOrQUICHandshakeResult `json:"tls_handshakes"`
}

TestKeysDoH contains ancillary observations collected using DoH (e.g., the DNS lookups, TCP connects, TLS handshakes caused by given DoH lookups).

They are on a separate hierarchy to simplify processing.

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