/
lib.rs
1575 lines (1458 loc) · 58.5 KB
/
lib.rs
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//! The `pact_verifier` crate provides the core logic to performing verification of providers.
//! It implements the V3 (`https://github.com/pact-foundation/pact-specification/tree/version-3`)
//! and V4 Pact specification (`https://github.com/pact-foundation/pact-specification/tree/version-4`).
#![warn(missing_docs)]
use std::collections::HashMap;
use std::fmt::{Debug, Display, Formatter};
use std::fmt;
use std::fs;
use std::future::Future;
use std::panic::RefUnwindSafe;
use std::path::Path;
use std::sync::Arc;
use std::time::{Duration, Instant};
use ansi_term::*;
use ansi_term::Colour::*;
use anyhow::anyhow;
use futures::stream::StreamExt;
use http::{header, HeaderMap};
use http::header::HeaderName;
use humantime::format_duration;
use itertools::{Either, Itertools};
use maplit::*;
use pact_models::generators::GeneratorTestMode;
use pact_models::http_utils::HttpAuth;
use pact_models::interaction::Interaction;
use pact_models::json_utils::json_to_string;
use pact_models::pact::{load_pact_from_json, Pact, read_pact};
use pact_models::prelude::v4::SynchronousHttp;
use pact_models::provider_states::*;
use pact_models::v4::interaction::V4Interaction;
use pact_plugin_driver::{catalogue_manager, plugin_manager};
use pact_plugin_driver::catalogue_manager::{CatalogueEntry, CatalogueEntryProviderType};
use pact_plugin_driver::plugin_manager::{load_plugin, shutdown_plugins};
use pact_plugin_driver::plugin_models::{PluginDependency, PluginDependencyType};
use pact_plugin_driver::verification::{InteractionVerificationData, InteractionVerificationDetails};
use regex::Regex;
use reqwest::Client;
use serde_json::{json, Value};
use tracing::{debug, debug_span, error, info, Instrument, instrument, trace, warn};
pub use callback_executors::NullRequestFilterExecutor;
use callback_executors::RequestFilterExecutor;
use pact_matching::{match_response, Mismatch};
use pact_matching::logging::LOG_ID;
use pact_matching::metrics::{MetricEvent, send_metrics_async};
use crate::callback_executors::{ProviderStateError, ProviderStateExecutor};
use crate::messages::{process_message_result, process_sync_message_result, verify_message_from_provider, verify_sync_message_from_provider};
use crate::metrics::VerificationMetrics;
use crate::pact_broker::{
Link,
PactBrokerError,
PactVerificationContext,
publish_verification_results,
TestResult
};
pub use crate::pact_broker::{ConsumerVersionSelector, PactsForVerificationRequest};
use crate::provider_client::make_provider_request;
use crate::request_response::process_request_response_result;
use crate::utils::as_safe_ref;
use crate::verification_result::{
VerificationExecutionResult,
VerificationInteractionResult,
VerificationResult
};
pub mod provider_client;
pub mod pact_broker;
pub mod callback_executors;
mod request_response;
mod messages;
pub mod selectors;
pub mod metrics;
pub mod verification_result;
mod utils;
/// Source for loading pacts
#[derive(Debug, Clone)]
pub enum PactSource {
/// Unknown pact source
Unknown,
/// Load the pact from a pact file
File(String),
/// Load all the pacts from a Directory
Dir(String),
/// Load the pact from a URL
URL(String, Option<HttpAuth>),
/// Load all pacts with the provider name from the pact broker url
BrokerUrl(String, String, Option<HttpAuth>, Vec<Link>),
/// Load pacts with the newer pacts for verification API
BrokerWithDynamicConfiguration {
/// Name of the provider as named in the Pact Broker
provider_name: String,
/// Base URL of the Pact Broker from which to retrieve the pacts
broker_url: String,
/// Allow pacts which are in pending state to be verified without causing the overall task to fail. For more information, see https://pact.io/pending
enable_pending: bool,
/// Allow pacts that don't match given consumer selectors (or tags) to be verified, without causing the overall task to fail. For more information, see https://pact.io/wip
include_wip_pacts_since: Option<String>,
/// Provider tags to use in determining pending status for return pacts
provider_tags: Vec<String>,
/// Provider branch to use when publishing verification results
provider_branch: Option<String>,
/// The set of selectors that identifies which pacts to verify
selectors: Vec<ConsumerVersionSelector>,
/// HTTP authentication details for accessing the Pact Broker
auth: Option<HttpAuth>,
/// Links to the specific Pact resources. Internal field
links: Vec<Link>
},
/// Load the Pact from some JSON (used for testing purposed)
String(String)
}
impl Display for PactSource {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
match *self {
PactSource::File(ref file) => write!(f, "File({})", file),
PactSource::Dir(ref dir) => write!(f, "Dir({})", dir),
PactSource::URL(ref url, _) => write!(f, "URL({})", url),
PactSource::BrokerUrl(ref provider_name, ref broker_url, _, _) => {
write!(f, "PactBroker({}, provider_name='{}')", broker_url, provider_name)
}
PactSource::BrokerWithDynamicConfiguration {
ref provider_name,
ref broker_url,
ref enable_pending,
ref include_wip_pacts_since,
ref provider_branch,
ref provider_tags,
ref selectors,
ref auth, .. } => {
if let Some(auth) = auth {
write!(f, "PactBrokerWithDynamicConfiguration({}, provider_name='{}', enable_pending={}, include_wip_since={:?}, provider_tags={:?}, provider_branch={:?}, consumer_version_selectors='{:?}, auth={}')", broker_url, provider_name, enable_pending, include_wip_pacts_since, provider_tags, provider_branch, selectors, auth)
} else {
write!(f, "PactBrokerWithDynamicConfiguration({}, provider_name='{}', enable_pending={}, include_wip_since={:?}, provider_tags={:?}, provider_branch={:?}, consumer_version_selectors='{:?}, auth=None')", broker_url, provider_name, enable_pending, include_wip_pacts_since, provider_tags, provider_branch, selectors)
}
}
_ => write!(f, "Unknown")
}
}
}
/// Information about the Provider to verify
#[derive(Debug, Clone)]
pub struct ProviderTransport {
/// Protocol Transport
pub transport: String,
/// Port to use for the transport
pub port: Option<u16>,
/// Base path to use for the transport (for protocols that support paths)
pub path: Option<String>,
/// Transport scheme to use. Will default to HTTP
pub scheme: Option<String>
}
impl ProviderTransport {
/// Calculate a base URL for the transport
pub fn base_url(&self, hostname: &str) -> String {
let scheme = self.scheme.clone().unwrap_or("http".to_string());
match self.port {
Some(port) => format!("{}://{}:{}{}", scheme, hostname, port, self.path.clone().unwrap_or_default()),
None => format!("{}://{}{}", scheme, hostname, self.path.clone().unwrap_or_default())
}
}
}
impl Default for ProviderTransport {
fn default() -> Self {
ProviderTransport {
transport: "http".to_string(),
port: Some(8080),
path: None,
scheme: Some("http".to_string())
}
}
}
/// Information about the Provider to verify
#[derive(Debug, Clone)]
pub struct ProviderInfo {
/// Provider Name
pub name: String,
/// Provider protocol, defaults to HTTP
#[deprecated(note = "Use transports instead")]
pub protocol: String,
/// Hostname of the provider
pub host: String,
/// Port the provider is running on, defaults to 8080
#[deprecated(note = "Use transports instead")]
pub port: Option<u16>,
/// Base path for the provider, defaults to /
#[deprecated(note = "Use transports instead")]
pub path: String,
/// Transports configured for the provider
pub transports: Vec<ProviderTransport>
}
impl Default for ProviderInfo {
/// Create a default provider info
#[allow(deprecated)]
fn default() -> ProviderInfo {
ProviderInfo {
name: "provider".to_string(),
protocol: "http".to_string(),
host: "localhost".to_string(),
port: Some(8080),
path: "/".to_string(),
transports: vec![]
}
}
}
/// Result of performing a match
pub enum MismatchResult {
/// Response mismatches
Mismatches {
/// Mismatches that occurred
mismatches: Vec<Mismatch>,
/// Expected Response/Message
expected: Box<dyn Interaction + RefUnwindSafe>,
/// Actual Response/Message
actual: Box<dyn Interaction + RefUnwindSafe>,
/// Interaction ID if fetched from a pact broker
interaction_id: Option<String>
},
/// Error occurred
Error(String, Option<String>)
}
impl MismatchResult {
/// Return the interaction ID associated with the error, if any
pub fn interaction_id(&self) -> Option<String> {
match *self {
MismatchResult::Mismatches { ref interaction_id, .. } => interaction_id.clone(),
MismatchResult::Error(_, ref interaction_id) => interaction_id.clone()
}
}
}
impl From<ProviderStateError> for MismatchResult {
fn from(error: ProviderStateError) -> Self {
MismatchResult::Error(error.description, error.interaction_id)
}
}
impl Debug for MismatchResult {
fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
match self {
MismatchResult::Mismatches { mismatches, expected, actual, interaction_id } => {
if let Some(ref expected_reqres) = expected.as_request_response() {
f.debug_struct("MismatchResult::Mismatches")
.field("mismatches", mismatches)
.field("expected", expected_reqres)
.field("actual", &actual.as_request_response().unwrap())
.field("interaction_id", interaction_id)
.finish()
} else if let Some(ref expected_message) = expected.as_message() {
f.debug_struct("MismatchResult::Mismatches")
.field("mismatches", mismatches)
.field("expected", expected_message)
.field("actual", &actual.as_message().unwrap())
.field("interaction_id", interaction_id)
.finish()
} else {
f.debug_struct("MismatchResult::Mismatches")
.field("mismatches", mismatches)
.field("expected", &"<UKNOWN TYPE>".to_string())
.field("actual", &"<UKNOWN TYPE>".to_string())
.field("interaction_id", interaction_id)
.finish()
}
},
MismatchResult::Error(error, opt) => {
f.debug_tuple("MismatchResult::Error").field(error).field(opt).finish()
}
}
}
}
impl Clone for MismatchResult {
fn clone(&self) -> Self {
match self {
MismatchResult::Mismatches { mismatches, expected, actual, interaction_id } => {
if expected.is_v4() {
MismatchResult::Mismatches {
mismatches: mismatches.clone(),
expected: as_safe_ref(expected.as_ref()),
actual: as_safe_ref(actual.as_ref()),
interaction_id: interaction_id.clone()
}
} else if let Some(ref expected_reqres) = expected.as_request_response() {
MismatchResult::Mismatches {
mismatches: mismatches.clone(),
expected: Box::new(expected_reqres.clone()),
actual: Box::new(actual.as_request_response().unwrap().clone()),
interaction_id: interaction_id.clone()
}
} else if let Some(ref expected_message) = expected.as_message() {
MismatchResult::Mismatches {
mismatches: mismatches.clone(),
expected: Box::new(expected_message.clone()),
actual: Box::new(actual.as_message().unwrap().clone()),
interaction_id: interaction_id.clone()
}
} else {
panic!("Cannot clone this MismatchResult::Mismatches as the expected and actual values are an unknown type")
}
},
MismatchResult::Error(error, opt) => {
MismatchResult::Error(error.clone(), opt.clone())
}
}
}
}
async fn verify_response_from_provider<F: RequestFilterExecutor>(
provider: &ProviderInfo,
interaction: &SynchronousHttp,
pact: &Box<dyn Pact + Send + Sync + RefUnwindSafe>,
options: &VerificationOptions<F>,
client: &Client,
verification_context: &HashMap<&str, Value>
) -> Result<Option<String>, MismatchResult> {
let expected_response = &interaction.response;
let request = pact_matching::generate_request(&interaction.request,
&GeneratorTestMode::Provider, &verification_context).await;
let transport = if let Some(transport) = &interaction.transport {
provider.transports
.iter()
.find(|t| &t.transport == transport)
.cloned()
} else {
provider.transports
.iter()
.find(|t| t.transport == "http")
.cloned()
}.map(|t| {
if t.scheme.is_none() {
ProviderTransport {
scheme: Some("http".to_string()),
.. t
}
} else {
t
}
});
match make_provider_request(provider, &request, options, client, transport).await {
Ok(ref actual_response) => {
let mismatches = match_response(expected_response.clone(), actual_response.clone(), pact, &interaction.boxed()).await;
if mismatches.is_empty() {
Ok(interaction.id.clone())
} else {
Err(MismatchResult::Mismatches {
mismatches,
expected: Box::new(interaction.clone()),
actual: Box::new(SynchronousHttp { response: actual_response.clone(), .. SynchronousHttp::default() }),
interaction_id: interaction.id.clone()
})
}
},
Err(err) => {
Err(MismatchResult::Error(err.to_string(), interaction.id.clone()))
}
}
}
async fn execute_state_change<S: ProviderStateExecutor>(
provider_state: &ProviderState,
setup: bool,
interaction_id: Option<String>,
client: &Client,
provider_state_executor: Arc<S>
) -> Result<HashMap<String, Value>, MismatchResult> {
let result = provider_state_executor.call(interaction_id, provider_state, setup, Some(client)).await;
debug!("State Change: \"{:?}\" -> {:?}", provider_state, result);
result.map_err(|err| {
if let Some(err) = err.downcast_ref::<ProviderStateError>() {
MismatchResult::Error(err.description.clone(), err.interaction_id.clone())
} else {
MismatchResult::Error(err.to_string(), None)
}
})
}
/// Main implementation for verifying an interaction. Will return a tuple containing the
/// result of the verification and any output collected plus the time taken to execute
#[tracing::instrument(level = "trace")]
async fn verify_interaction<'a, F: RequestFilterExecutor, S: ProviderStateExecutor>(
provider: &ProviderInfo,
interaction: &(dyn Interaction + Send + Sync + RefUnwindSafe),
pact: &Box<dyn Pact + Send + Sync + RefUnwindSafe + 'a>,
options: &VerificationOptions<F>,
provider_state_executor: &Arc<S>
) -> Result<(Option<String>, Vec<String>, Duration), (MismatchResult, Vec<String>, Duration)> {
let start = Instant::now();
trace!("Verifying interaction {} {} ({:?})", interaction.type_of(), interaction.description(), interaction.id());
let client = Arc::new(configure_http_client(options)
.map_err(|err| (
MismatchResult::Error(err.to_string(), interaction.id()),
vec![],
start.elapsed()
))?);
debug!("Executing provider states");
let context = execute_provider_states(interaction, provider_state_executor, &client, true)
.await
.map_err(|e| (e, vec![], start.elapsed()))?;
let provider_states_context = context
.iter()
.map(|(k, v)| (k.as_str(), v.clone()))
.collect();
info!("Running provider verification for '{}'", interaction.description());
trace!("Interaction to verify: {:?}", interaction);
let transport = if interaction.is_v4() {
interaction.as_v4()
.and_then(|i| i.transport())
.and_then(|t| catalogue_manager::lookup_entry(&*format!("transport/{}", t)))
} else {
None
};
let result = if let Some(transport) = &transport {
trace!("Verifying interaction via {}", transport.key);
verify_interaction_using_transport(transport, provider, interaction, pact, options, &client, &provider_states_context).await
} else {
verify_v3_interaction(provider, interaction, &pact, options, &client, &provider_states_context)
.await
.map(|r| (r, vec![]))
.map_err(|e| (e, vec![]))
};
if provider_state_executor.teardown() {
execute_provider_states(interaction, provider_state_executor, &client, false)
.await
.map_err(|e| (e, vec![], start.elapsed()))?;
}
result
.map(|(id, output)| (id, output, start.elapsed()))
.map_err(|(result, output)| (result, output, start.elapsed()))
}
/// Verify an interaction using the provided transport
async fn verify_interaction_using_transport<'a, F: RequestFilterExecutor>(
transport_entry: &CatalogueEntry,
provider: &ProviderInfo,
interaction: &(dyn Interaction + Send + Sync + RefUnwindSafe),
pact: &Box<dyn Pact + Send + Sync + RefUnwindSafe + 'a>,
options: &VerificationOptions<F>,
client: &Arc<Client>,
config: &HashMap<&str, Value>
) -> Result<(Option<String>, Vec<String>), (MismatchResult, Vec<String>)> {
if transport_entry.provider_type == CatalogueEntryProviderType::PLUGIN {
match pact.as_v4_pact() {
Ok(pact) => {
let mut context = hashmap!{
"host".to_string() => Value::String(provider.host.clone())
};
#[allow(deprecated)]
let port = provider.transports.iter()
.find_map(|transport| {
if transport_entry.key.ends_with(&transport.transport) {
transport.port
} else {
None
}
})
.or_else(|| provider.port);
if let Some(port) = port {
context.insert("port".to_string(), json!(port));
}
for (k, v) in config {
context.insert(k.to_string(), v.clone());
}
// Get plugin to prepare the request data
let v4_interaction = interaction.as_v4().unwrap();
let InteractionVerificationData { request_data, mut metadata } = plugin_manager::prepare_validation_for_interaction(transport_entry, &pact,
v4_interaction.as_ref(), &context)
.await
.map_err(|err| {
(MismatchResult::Error(format!("Failed to prepare interaction for verification - {err}"), interaction.id()), vec![])
})?;
// If any custom headers have been setup, add them to the metadata
if !options.custom_headers.is_empty() {
for (key, val) in &options.custom_headers {
metadata.insert(key.clone(), Either::Left(Value::String(val.to_string())));
}
}
// Invoke any callback to mutate the data
let (request_body, request_metadata) = if let Some(filter) = &options.request_filter {
info!("Invoking request filter for request data");
filter.call_non_http(&request_data, &metadata)
} else {
(request_data.clone(), metadata.clone())
};
// Get the plugin to verify the request
match plugin_manager::verify_interaction(
transport_entry,
&InteractionVerificationData::new(request_body, request_metadata),
&context,
&pact,
v4_interaction.as_ref()
).await {
Ok(result) => if result.ok {
Ok((interaction.id(), result.output))
} else {
Err((MismatchResult::Mismatches {
mismatches: result.details.iter().filter_map(|mismatch| match mismatch {
InteractionVerificationDetails::Error(err) => {
error!("Individual mismatch is an error: {err}");
None // TODO: matching crate does not support storing an error against an item
}
InteractionVerificationDetails::Mismatch { expected, actual, mismatch, path } => {
Some(Mismatch::BodyMismatch {
path: path.clone(),
expected: Some(expected.clone()),
actual: Some(actual.clone()),
mismatch: mismatch.clone()
})
}
}).collect(),
expected: as_safe_ref(interaction),
actual: as_safe_ref(interaction),
interaction_id: interaction.id()
}, result.output))
}
Err(err) => {
Err((MismatchResult::Error(format!("Verification failed with an error - {err}"), interaction.id()), vec![]))
}
}
},
Err(err) => {
Err((MismatchResult::Error(format!("Pacts must be V4 format to work with plugins - {err}"), interaction.id()), vec![]))
}
}
} else {
verify_v3_interaction(provider, interaction, pact, options, client, config)
.await
.map(|r| (r, vec![]))
.map_err(|e| (e, vec![]))
}
}
/// Previous implementation (V3) of verification
async fn verify_v3_interaction<'a, F: RequestFilterExecutor>(
provider: &ProviderInfo,
interaction: &(dyn Interaction + Send + Sync + RefUnwindSafe),
pact: &Box<dyn Pact + Send + Sync + RefUnwindSafe + 'a>,
options: &VerificationOptions<F>,
client: &Arc<Client>,
provider_states_context: &HashMap<&str, Value>
) -> Result<Option<String>, MismatchResult> {
let mut result = Err(MismatchResult::Error("No interaction was verified".into(), interaction.id().clone()));
// Verify an HTTP interaction
if let Some(interaction) = interaction.as_v4_http() {
debug!("Verifying a HTTP interaction");
result = verify_response_from_provider(provider, &interaction, &pact.boxed(), options,
&client, &provider_states_context).await;
}
// Verify an asynchronous message (single shot)
if interaction.is_message() {
debug!("Verifying an asynchronous message (single shot)");
result = verify_message_from_provider(provider, pact, &interaction.boxed(), options,
&client, &provider_states_context).await;
}
// Verify a synchronous message (request/response)
if let Some(message) = interaction.as_v4_sync_message() {
debug!("Verifying a synchronous message (request/response)");
result = verify_sync_message_from_provider(provider, pact, message, options, &client,
&provider_states_context).await;
}
result
}
/// Executes the provider states, returning a map of the results
#[instrument(ret, skip_all, fields(?interaction, is_setup), level = "trace")]
async fn execute_provider_states<S: ProviderStateExecutor>(
interaction: &(dyn Interaction + Send + Sync + RefUnwindSafe),
provider_state_executor: &Arc<S>,
client: &Arc<Client>,
is_setup: bool
) -> Result<HashMap<String, Value>, MismatchResult> {
let mut provider_states_results = hashmap!{};
let sc_type = if is_setup { "setup" } else { "teardown" };
let mut sc_results = vec![];
if interaction.provider_states().is_empty() {
info!("Running {} provider state change handler with empty state for '{}'", sc_type, interaction.description());
match execute_state_change(&ProviderState::default(""), is_setup, interaction.id(), client,
provider_state_executor.clone()).await {
Ok(data) => {
sc_results.push(Ok(data));
}
Err(err) => {
error!("Provider {} state change for has failed - {:?}", sc_type, err);
sc_results.push(Err(err));
}
}
} else {
for state in &interaction.provider_states() {
info!("Running {} provider state change handler '{}' for '{}'", sc_type, state.name, interaction.description());
match execute_state_change(state, is_setup, interaction.id(), client,
provider_state_executor.clone()).await {
Ok(data) => {
sc_results.push(Ok(data));
}
Err(err) => {
error!("Provider {} state change for '{}' has failed - {:?}", sc_type, state.name, err);
sc_results.push(Err(err));
}
}
}
}
if sc_results.iter().any(|result| result.is_err()) {
return Err(MismatchResult::Error(
format!("One or more of the {} state change handlers has failed", sc_type), interaction.id()))
} else {
for result in sc_results {
if let Ok(data) = result {
for (k, v) in data {
provider_states_results.insert(k, v);
}
}
}
};
Ok(provider_states_results)
}
/// Configure the HTTP client to use for requests to the provider
pub(crate) fn configure_http_client<F: RequestFilterExecutor>(
options: &VerificationOptions<F>
) -> anyhow::Result<Client> {
let mut client_builder = reqwest::Client::builder()
.danger_accept_invalid_certs(options.disable_ssl_verification)
.timeout(Duration::from_millis(options.request_timeout));
if !options.custom_headers.is_empty() {
let headers = setup_custom_headers(&options.custom_headers)?;
client_builder = client_builder.default_headers(headers);
}
client_builder.build().map_err(|err| anyhow!(err))
}
fn setup_custom_headers(custom_headers: &HashMap<String, String>) -> anyhow::Result<HeaderMap> {
let mut headers = header::HeaderMap::new();
for (key, value) in custom_headers {
let header_name = match HeaderName::try_from(key) {
Ok(name) => name,
Err(err) => {
return Err(anyhow!("Custom header '{key}' is invalid. Only ASCII characters (32-127) are permitted - {err}"));
}
};
let header_value = match header::HeaderValue::from_str(value.as_str()) {
Ok(value) => value,
Err(err) => {
return Err(anyhow!("Custom header '{key}' has an invalid value '{value}'. Only ASCII characters (32-127) are permitted - {err}"));
}
};
headers.append(header_name, header_value);
}
Ok(headers)
}
fn generate_display_for_result(
status: u16,
status_result: ANSIGenericString<str>,
header_results: Option<Vec<(String, String, ANSIGenericString<str>)>>,
body_result: ANSIGenericString<str>,
output: &mut Vec<String>,
coloured: bool
) {
output.push(" returns a response which".to_string());
let style = if coloured { Style::new().bold() } else { Style::new() };
output.push(format!(" has status code {} ({})", style.paint(format!("{}", status)),
status_result));
if let Some(header_results) = header_results {
output.push(" includes headers".to_string());
for (key, value, result) in header_results {
output.push(format!(" \"{}\" with value \"{}\" ({})", style.paint(key),
style.paint(value), result));
}
}
output.push(format!(" has a matching body ({})", body_result));
}
fn walkdir(
dir: &Path,
provider: &ProviderInfo
) -> anyhow::Result<Vec<anyhow::Result<(Box<dyn Pact + Send + Sync + RefUnwindSafe>, Duration)>>> {
let mut pacts = vec![];
debug!("Scanning {:?}", dir);
for entry in fs::read_dir(dir)? {
let entry = entry?;
let path = entry.path();
if path.is_dir() {
walkdir(&path, provider)?;
} else {
match timeit(|| read_pact(&path)) {
Ok((pact, tm)) => {
if pact.provider().name == provider.name {
pacts.push(Ok((pact, tm)));
}
}
Err(err) => pacts.push(Err(err))
};
}
}
Ok(pacts)
}
fn display_body_mismatch(
expected: &dyn Interaction,
actual: &dyn Interaction,
path: &str,
output: &mut Vec<String>
) {
if expected.contents_for_verification().content_type().unwrap_or_default().is_json() {
output.push(pact_matching::json::display_diff(
&expected.contents_for_verification().display_string().to_string(),
&actual.contents_for_verification().display_string().to_string(),
path, " "));
}
}
/// Filter information used to filter the interactions that are verified
#[derive(Debug, Clone)]
pub enum FilterInfo {
/// No filter, all interactions will be verified
None,
/// Filter on the interaction description
Description(String),
/// Filter on the interaction provider state
State(String),
/// Filter on both the interaction description and provider state
DescriptionAndState(String, String)
}
impl FilterInfo {
/// If this filter is filtering on description
pub fn has_description(&self) -> bool {
match *self {
FilterInfo::Description(_) => true,
FilterInfo::DescriptionAndState(_, _) => true,
_ => false
}
}
/// If this filter is filtering on provider state
pub fn has_state(&self) -> bool {
match *self {
FilterInfo::State(_) => true,
FilterInfo::DescriptionAndState(_, _) => true,
_ => false
}
}
/// Value of the state to filter
pub fn state(&self) -> String {
match *self {
FilterInfo::State(ref s) => s.clone(),
FilterInfo::DescriptionAndState(_, ref s) => s.clone(),
_ => String::default()
}
}
/// Value of the description to filter
pub fn description(&self) -> String {
match *self {
FilterInfo::Description(ref s) => s.clone(),
FilterInfo::DescriptionAndState(ref s, _) => s.clone(),
_ => String::default()
}
}
/// If the filter matches the interaction provider state using a regular expression. If the
/// filter value is the empty string, then it will match interactions with no provider state.
///
/// # Panics
/// If the state filter value can't be parsed as a regular expression
pub fn match_state(&self, interaction: &dyn Interaction) -> bool {
if !interaction.provider_states().is_empty() {
if self.state().is_empty() {
false
} else {
let re = Regex::new(&self.state()).unwrap();
interaction.provider_states().iter().any(|state| re.is_match(&state.name))
}
} else {
self.has_state() && self.state().is_empty()
}
}
/// If the filter matches the interaction description using a regular expression
///
/// # Panics
/// If the description filter value can't be parsed as a regular expression
pub fn match_description(&self, interaction: &dyn Interaction) -> bool {
let re = Regex::new(&self.description()).unwrap();
re.is_match(&interaction.description())
}
}
fn filter_interaction(interaction: &dyn Interaction, filter: &FilterInfo) -> bool {
if filter.has_description() && filter.has_state() {
filter.match_description(interaction) && filter.match_state(interaction)
} else if filter.has_description() {
filter.match_description(interaction)
} else if filter.has_state() {
filter.match_state(interaction)
} else {
true
}
}
fn filter_consumers(
consumers: &[String],
res: &anyhow::Result<(Box<dyn Pact + Send + Sync + RefUnwindSafe>, Option<PactVerificationContext>, PactSource, Duration)>
) -> bool {
consumers.is_empty() || res.is_err() || consumers.contains(&res.as_ref().unwrap().0.consumer().name)
}
/// Options for publishing results to the Pact Broker
#[derive(Debug, Clone)]
pub struct PublishOptions {
/// Provider version being published
pub provider_version: Option<String>,
/// Build URL to associate with the published results
pub build_url: Option<String>,
/// Tags to use when publishing results
pub provider_tags: Vec<String>,
/// Provider branch used when publishing results
pub provider_branch: Option<String>,
}
impl Default for PublishOptions {
fn default() -> Self {
PublishOptions {
provider_version: None,
build_url: None,
provider_tags: vec![],
provider_branch: None,
}
}
}
/// Options to use when running the verification
#[derive(Debug, Clone)]
pub struct VerificationOptions<F> where F: RequestFilterExecutor {
/// Request filter callback
pub request_filter: Option<Arc<F>>,
/// Ignore invalid/self-signed SSL certificates
pub disable_ssl_verification: bool,
/// Timeout in ms for verification requests and state callbacks
pub request_timeout: u64,
/// Custom headers to be added to the requests to the provider
pub custom_headers: HashMap<String, String>,
/// If coloured output should be used (using ANSI escape codes)
pub coloured_output: bool,
/// If no pacts are found to verify, then this should be an error
pub no_pacts_is_error: bool
}
impl <F: RequestFilterExecutor> Default for VerificationOptions<F> {
fn default() -> Self {
VerificationOptions {
request_filter: None,
disable_ssl_verification: false,
request_timeout: 5000,
custom_headers: Default::default(),
coloured_output: true,
no_pacts_is_error: true
}
}
}
const VERIFICATION_NOTICE_BEFORE: &str = "before_verification";
const VERIFICATION_NOTICE_AFTER_SUCCESSFUL_RESULT_AND_PUBLISH: &str = "after_verification:success_true_published_true";
const VERIFICATION_NOTICE_AFTER_SUCCESSFUL_RESULT_AND_NO_PUBLISH: &str = "after_verification:success_true_published_false";
const VERIFICATION_NOTICE_AFTER_ERROR_RESULT_AND_PUBLISH: &str = "after_verification:success_false_published_true";
const VERIFICATION_NOTICE_AFTER_ERROR_RESULT_AND_NO_PUBLISH: &str = "after_verification:success_false_published_false";
fn process_notices(context: &Option<PactVerificationContext>, stage: &str, result: &mut VerificationExecutionResult) {
if let Some(c) = context {
result.notices = c.verification_properties.notices.clone();
for notice in &c.verification_properties.notices {
if let Some(when) = notice.get("when") {
if when.as_str() == stage {
result.output.push(notice.get("text").unwrap_or(&"".to_string()).clone());
}
}
}
}
}
/// Verify the provider with the given pact sources.
pub fn verify_provider<F: RequestFilterExecutor, S: ProviderStateExecutor>(
provider_info: ProviderInfo,
source: Vec<PactSource>,
filter: FilterInfo,
consumers: Vec<String>,
verification_options: &VerificationOptions<F>,
publish_options: Option<&PublishOptions>,
provider_state_executor: &Arc<S>,
metrics_data: Option<VerificationMetrics>
) -> anyhow::Result<bool> {
match tokio::runtime::Builder::new_multi_thread().enable_all().build() {
Ok(runtime) => runtime.block_on(
verify_provider_async(provider_info, source, filter, consumers, verification_options, publish_options, provider_state_executor, metrics_data)
).map(|result| result.result),
Err(err) => {
error!("Verify provider process failed to start the tokio runtime: {}", err);
Ok(false)
}
}
}
/// Verify the provider with the given pact sources (async version)
pub async fn verify_provider_async<F: RequestFilterExecutor, S: ProviderStateExecutor>(
provider_info: ProviderInfo,
source: Vec<PactSource>,
filter: FilterInfo,
consumers: Vec<String>,
verification_options: &VerificationOptions<F>,
publish_options: Option<&PublishOptions>,
provider_state_executor: &Arc<S>,
metrics_data: Option<VerificationMetrics>
) -> anyhow::Result<VerificationExecutionResult> {
pact_matching::matchers::configure_core_catalogue();
LOG_ID.scope(format!("verify:{}", provider_info.name), async {
let pact_results = fetch_pacts(source, consumers, &provider_info).await;
let mut total_results = 0;
let mut pending_errors: Vec<(String, MismatchResult)> = vec![];
let mut errors: Vec<(String, MismatchResult)> = vec![];
let mut verification_result = VerificationExecutionResult::new();
for pact_result in pact_results {
match pact_result {
Ok((pact, context, pact_source, pact_source_duration)) => {
trace!("Pact file took {} to load", format_duration(pact_source_duration));
if pact.requires_plugins() {
info!("Pact file requires plugins, will load those now");
for plugin_details in pact.plugin_data() {
let version = plugin_details.version.split('.')
.take(2)
.join(".");
load_plugin(&PluginDependency {
name: plugin_details.name.clone(),
version: Some(version),
dependency_type: PluginDependencyType::Plugin
}).await?;
}
}
process_notices(&context, VERIFICATION_NOTICE_BEFORE, &mut verification_result);
if verification_options.coloured_output {
verification_result.output.push(format!("\nVerifying a pact between {} and {}",
Style::new().bold().paint(pact.consumer().name.clone()),
Style::new().bold().paint(pact.provider().name.clone())));
} else {
verification_result.output.push(format!("\nVerifying a pact between {} and {}",
pact.consumer().name, pact.provider().name));
}
if pact.interactions().is_empty() {
if verification_options.coloured_output {
verification_result.output.push(
Yellow.paint("WARNING: Pact file has no interactions").to_string()
);
} else {
verification_result.output.push("WARNING: Pact file has no interactions".to_string());
}
} else {
let pending = match &context {
Some(context) => context.verification_properties.pending,
None => false
};
let verify_result = verify_pact_internal(
&provider_info,