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[feature] Add a request ID and include it in logs (#1476)

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This adds a lightweight form of tracing to GTS. Each incoming request is
assigned a Request ID which we then pass on and log in all our log
lines. Any function that gets called downstream from an HTTP handler
should now emit a requestID=value pair whenever it logs something.

Co-authored-by: kim <grufwub@gmail.com>
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Daenney 2023-02-17 12:02:29 +01:00 • committed by GitHub
commit 68e6d08c76
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118 changed files with 813 additions and 591 deletions
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14
internal/transport/derefinstance.go
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@ -45,26 +45,26 @@ func (t *transport) DereferenceInstance(ctx context.Context, iri *url.URL) (*gts
// This will provide the most complete picture of an instance, and avoid unnecessary api calls.
//
// This will only work with Mastodon-api compatible instances: Mastodon, some Pleroma instances, GoToSocial.
log.Debugf("trying to dereference instance %s by /api/v1/instance", iri.Host)
log.Debugf(ctx, "trying to dereference instance %s by /api/v1/instance", iri.Host)
i, err = dereferenceByAPIV1Instance(ctx, t, iri)
if err == nil {
log.Debugf("successfully dereferenced instance using /api/v1/instance")
log.Debugf(ctx, "successfully dereferenced instance using /api/v1/instance")
return i, nil
}
log.Debugf("couldn't dereference instance using /api/v1/instance: %s", err)
log.Debugf(ctx, "couldn't dereference instance using /api/v1/instance: %s", err)
// If that doesn't work, try to dereference using /.well-known/nodeinfo.
// This will involve two API calls and return less info overall, but should be more widely compatible.
log.Debugf("trying to dereference instance %s by /.well-known/nodeinfo", iri.Host)
log.Debugf(ctx, "trying to dereference instance %s by /.well-known/nodeinfo", iri.Host)
i, err = dereferenceByNodeInfo(ctx, t, iri)
if err == nil {
log.Debugf("successfully dereferenced instance using /.well-known/nodeinfo")
log.Debugf(ctx, "successfully dereferenced instance using /.well-known/nodeinfo")
return i, nil
}
log.Debugf("couldn't dereference instance using /.well-known/nodeinfo: %s", err)
log.Debugf(ctx, "couldn't dereference instance using /.well-known/nodeinfo: %s", err)
// we couldn't dereference the instance using any of the known methods, so just return a minimal representation
log.Debugf("returning minimal representation of instance %s", iri.Host)
log.Debugf(ctx, "returning minimal representation of instance %s", iri.Host)
id, err := id.NewRandomULID()
if err != nil {
return nil, fmt.Errorf("error creating new id for instance %s: %s", iri.Host, err)