resource_cloudflare_logpush_job.go

package provider

import (
	"context"
	"encoding/json"
	"fmt"
	"regexp"
	"strconv"
	"strings"

	"github.com/cloudflare/cloudflare-go"
	"github.com/hashicorp/terraform-plugin-log/tflog"
	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
)

func resourceCloudflareLogpushJob() *schema.Resource {
	return &schema.Resource{
		Schema:        resourceCloudflareLogpushJobSchema(),
		CreateContext: resourceCloudflareLogpushJobCreate,
		ReadContext:   resourceCloudflareLogpushJobRead,
		UpdateContext: resourceCloudflareLogpushJobUpdate,
		DeleteContext: resourceCloudflareLogpushJobDelete,
		Importer: &schema.ResourceImporter{
			StateContext: resourceCloudflareLogpushJobImport,
		},
		Description: `
		Provides a resource which manages Cloudflare Logpush jobs. For Logpush jobs pushing to Amazon S3, Google Cloud Storage,
Microsoft Azure or Sumo Logic, this resource cannot be automatically created. In order to have this automated, you must
have:

- ` + "`cloudflare_logpush_ownership_challenge`" + `: Configured to generate the challenge
  to confirm ownership of the destination.
- Either manual inspection or another Terraform Provider to get the contents of
  the ` + "`ownership_challenge_filename`" + ` value from the` + "`cloudflare_logpush_ownership_challenge`" + ` resource.
- ` + "`cloudflare_logpush_job`" + `: Create and manage the Logpush Job itself.`,
	}
}

func getJobFromResource(d *schema.ResourceData) (cloudflare.LogpushJob, *AccessIdentifier, error) {
	id := 0

	identifier, err := initIdentifier(d)
	if err != nil {
		return cloudflare.LogpushJob{}, identifier, err
	}

	if d.Id() != "" {
		var err error
		if id, err = strconv.Atoi(d.Id()); err != nil {
			return cloudflare.LogpushJob{}, identifier, fmt.Errorf("could not extract Logpush job from resource - invalid identifier (%s): %w", d.Id(), err)
		}
	}

	destConf := d.Get("destination_conf").(string)
	ownershipChallenge := d.Get("ownership_challenge").(string)
	var re = regexp.MustCompile(`^((datadog|splunk|https|r2)://|s3://.+endpoint=)`)

	if ownershipChallenge == "" && !re.MatchString(destConf) {
		return cloudflare.LogpushJob{}, identifier, fmt.Errorf("ownership_challenge must be set for the provided destination_conf")
	}

	job := cloudflare.LogpushJob{
		ID:                 id,
		Enabled:            d.Get("enabled").(bool),
		Name:               d.Get("name").(string),
		Dataset:            d.Get("dataset").(string),
		LogpullOptions:     d.Get("logpull_options").(string),
		DestinationConf:    destConf,
		OwnershipChallenge: ownershipChallenge,
		Frequency:          d.Get("frequency").(string),
	}

	filter := d.Get("filter")
	if filter != nil {
		var jobFilter cloudflare.LogpushJobFilters
		if err := json.Unmarshal([]byte(filter.(string)), &jobFilter); err != nil {
			return cloudflare.LogpushJob{}, identifier, err
		}
		err := jobFilter.Where.Validate()
		if err != nil {
			return job, identifier, err
		}
		job.Filter = &jobFilter
	}

	return job, identifier, nil
}

func resourceCloudflareLogpushJobRead(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
	client := meta.(*cloudflare.API)
	jobID, err := strconv.Atoi(d.Id())
	if err != nil {
		return diag.FromErr(fmt.Errorf("could not extract Logpush job from resource - invalid identifier (%s): %w", d.Id(), err))
	}

	var job cloudflare.LogpushJob
	identifier, err := initIdentifier(d)
	if err != nil {
		return diag.FromErr(err)
	}
	if identifier.Type == AccountType {
		job, err = client.GetAccountLogpushJob(ctx, identifier.Value, jobID)
	} else {
		job, err = client.GetZoneLogpushJob(ctx, identifier.Value, jobID)
	}
	if err != nil {
		if strings.Contains(err.Error(), "404") {
			tflog.Info(ctx, fmt.Sprintf("Could not find LogpushJob for %s with id: %q", identifier, jobID))
			d.SetId("")
			return nil
		}
		return diag.FromErr(fmt.Errorf("error reading logpush job %q for %s: %w", jobID, identifier, err))
	}

	if job.ID == 0 {
		d.SetId("")
		return nil
	}

	var filter string

	if job.Filter != nil {
		b, err := json.Marshal(job.Filter)
		if err != nil {
			return diag.FromErr(err)
		}

		filter = string(b)
	}

	d.Set("name", job.Name)
	d.Set("enabled", job.Enabled)
	d.Set("logpull_options", job.LogpullOptions)
	d.Set("destination_conf", job.DestinationConf)
	d.Set("ownership_challenge", d.Get("ownership_challenge"))
	d.Set("frequency", job.Frequency)
	d.Set("filter", filter)

	return nil
}

func resourceCloudflareLogpushJobCreate(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
	client := meta.(*cloudflare.API)

	job, identifier, err := getJobFromResource(d)
	if err != nil {
		return diag.FromErr(fmt.Errorf("error parsing logpush job from resource: %w", err))
	}

	tflog.Debug(ctx, fmt.Sprintf("Creating Cloudflare Logpush job for %s from struct: %+v", identifier, job))

	var j *cloudflare.LogpushJob
	if identifier.Type == AccountType {
		j, err = client.CreateAccountLogpushJob(ctx, identifier.Value, job)
	} else {
		j, err = client.CreateZoneLogpushJob(ctx, identifier.Value, job)
	}
	if err != nil {
		return diag.FromErr(fmt.Errorf("error creating logpush job for %s: %w", identifier, err))
	}
	if j.ID == 0 {
		return diag.FromErr(fmt.Errorf("failed to find ID in Create response; resource was empty"))
	}

	d.SetId(strconv.Itoa(j.ID))

	tflog.Info(ctx, fmt.Sprintf("Created Cloudflare Logpush Job for %s: %s", identifier, d.Id()))

	return resourceCloudflareLogpushJobRead(ctx, d, meta)
}

func resourceCloudflareLogpushJobUpdate(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
	client := meta.(*cloudflare.API)

	job, identifier, err := getJobFromResource(d)
	if err != nil {
		return diag.FromErr(fmt.Errorf("error parsing logpush job from resource: %w", err))
	}

	tflog.Info(ctx, fmt.Sprintf("Updating Cloudflare Logpush job for %s from struct: %+v", identifier, job))

	if identifier.Type == AccountType {
		err = client.UpdateAccountLogpushJob(ctx, identifier.Value, job.ID, job)
	} else {
		err = client.UpdateZoneLogpushJob(ctx, identifier.Value, job.ID, job)
	}

	if err != nil {
		return diag.FromErr(fmt.Errorf("error updating logpush job id %q for %s: %w", job.ID, identifier, err))
	}

	return resourceCloudflareLogpushJobRead(ctx, d, meta)
}

func resourceCloudflareLogpushJobDelete(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
	client := meta.(*cloudflare.API)

	job, identifier, err := getJobFromResource(d)
	if err != nil {
		return diag.FromErr(fmt.Errorf("error parsing logpush job from resource: %w", err))
	}

	tflog.Debug(ctx, fmt.Sprintf("Deleting Cloudflare Logpush job for %s with id: %+v", identifier, job.ID))

	if identifier.Type == AccountType {
		err = client.DeleteAccountLogpushJob(ctx, identifier.Value, job.ID)
	} else {
		err = client.DeleteZoneLogpushJob(ctx, identifier.Value, job.ID)
	}
	if err != nil {
		if strings.Contains(err.Error(), "job not found") {
			tflog.Info(ctx, fmt.Sprintf("Could not find logpush job for %s with id: %q", identifier, job.ID))
			d.SetId("")
			return nil
		}
		return diag.FromErr(fmt.Errorf("error deleting logpush job id %v for %s: %w", job.ID, identifier, err))
	}

	d.SetId("")

	return nil
}

func resourceCloudflareLogpushJobImport(ctx context.Context, d *schema.ResourceData, meta interface{}) ([]*schema.ResourceData, error) {
	// split the id so we can lookup
	idAttr := strings.Split(d.Id(), "/")

	if len(idAttr) != 3 || (AccessIdentifierType(idAttr[0]) != AccountType && AccessIdentifierType(idAttr[0]) != ZoneType) || idAttr[1] == "" || idAttr[2] == "" {
		return nil, fmt.Errorf("invalid id (\"%s\") specified, should be in format \"account/accountID/jobID\" or \"zone/zoneID/jobID\"", d.Id())
	}

	identifier := AccessIdentifier{
		Type:  AccessIdentifierType(idAttr[0]),
		Value: idAttr[1],
	}
	logpushJobID := idAttr[2]

	tflog.Debug(ctx, fmt.Sprintf("Importing Cloudflare Logpush Job for %s with id %s", identifier, logpushJobID))

	if identifier.Type == AccountType {
		if err := d.Set("account_id", identifier.Value); err != nil {
			return nil, fmt.Errorf("failed to set account_id: %w", err)
		}
	} else {
		if err := d.Set("zone_id", identifier.Value); err != nil {
			return nil, fmt.Errorf("failed to set zone_id: %w", err)
		}
	}
	d.SetId(logpushJobID)

	resourceCloudflareLogpushJobRead(ctx, d, meta)

	return []*schema.ResourceData{d}, nil
}