Imported and modified evcli's api client code

8 files changed, 519 insertions, 0 deletions

diff --git a/external/evcli/LICENSE b/external/evcli/LICENSE
new file mode 100644
index 0000000..eec6477
--- /dev/null
+++ b/external/evcli/LICENSE
@@ -0,0 +1,13 @@
+Copyright (c) 2022 Exograd SAS.
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
diff --git a/external/evcli/README.md b/external/evcli/README.md
new file mode 100644
index 0000000..91e7820
--- /dev/null
+++ b/external/evcli/README.md
@@ -0,0 +1,3 @@
+# evcli
+
+The code in this directory comes from [evcli](https://github.com/exograd/eventline/tree/master/cmd/evcli). It is the property of [Exograd](https://www.exograd.com/) under the [ISC License](https://github.com/exograd/eventline/blob/master/LICENSE).
diff --git a/external/evcli/api.go b/external/evcli/api.go
new file mode 100644
index 0000000..40fe38c
--- /dev/null
+++ b/external/evcli/api.go
@@ -0,0 +1,86 @@
+package evcli
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+
+	"github.com/exograd/eventline/pkg/eventline"
+	"github.com/exograd/go-daemon/check"
+)
+
+type APIError struct {
+	Message string          `json:"error"`
+	Code    string          `json:"code,omitempty"`
+	RawData json.RawMessage `json:"data,omitempty"`
+	Data    interface{}     `json:"-"`
+}
+
+type InvalidRequestBodyError struct {
+	ValidationErrors check.ValidationErrors `json:"validation_errors"`
+}
+
+func (err APIError) Error() string {
+	return err.Message
+}
+
+func (err *APIError) UnmarshalJSON(data []byte) error {
+	type APIError2 APIError
+
+	err2 := APIError2(*err)
+	if jsonErr := json.Unmarshal(data, &err2); jsonErr != nil {
+		return jsonErr
+	}
+
+	switch err2.Code {
+	case "invalid_request_body":
+		var errData InvalidRequestBodyError
+
+		if err2.RawData != nil {
+			if err := json.Unmarshal(err2.RawData, &errData); err != nil {
+				return fmt.Errorf("invalid jsv errors: %w", err)
+			}
+
+			err2.Data = &errData
+		}
+	}
+
+	*err = APIError(err2)
+	return nil
+}
+
+func IsInvalidRequestBodyError(err error) (bool, check.ValidationErrors) {
+	var apiError *APIError
+
+	if !errors.As(err, &apiError) {
+		return false, nil
+	}
+
+	requestBodyErr, ok := apiError.Data.(*InvalidRequestBodyError)
+	if !ok {
+		return false, nil
+	}
+
+	return true, requestBodyErr.ValidationErrors
+}
+
+type ProjectPage struct {
+	Elements eventline.Projects `json:"elements"`
+	Previous *eventline.Cursor  `json:"previous,omitempty"`
+	Next     *eventline.Cursor  `json:"next,omitempty"`
+}
+
+type Parameter struct {
+	Name        string      `json:"name"`
+	Type        string      `json:"type"`
+	Default     interface{} `json:"default"`
+	Description string      `json:"description"`
+}
+
+type Parameters []*Parameter
+
+type JobPage struct {
+	Elements eventline.Jobs    `json:"elements"`
+	Previous *eventline.Cursor `json:"previous,omitempty"`
+	Next     *eventline.Cursor `json:"next,omitempty"`
+}
diff --git a/external/evcli/client.go b/external/evcli/client.go
new file mode 100644
index 0000000..8127dff
--- /dev/null
+++ b/external/evcli/client.go
@@ -0,0 +1,332 @@
+package evcli
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+
+	"github.com/exograd/eventline/pkg/eventline"
+)
+
+type Client struct {
+	APIKey    string
+	ProjectId *eventline.Id
+
+	httpClient *http.Client
+
+	baseURI *url.URL
+}
+
+func NewClient(config *APIConfig) (*Client, error) {
+	baseURI, err := url.Parse(config.Endpoint)
+	if err != nil {
+		return nil, fmt.Errorf("invalid api endpoint: %w", err)
+	}
+
+	client := &Client{
+		APIKey:     config.Key,
+		baseURI:    baseURI,
+		httpClient: NewHTTPClient(),
+	}
+
+	if err != nil {
+	}
+
+	return client, nil
+}
+
+func (c *Client) SendRequest(method string, relURI *url.URL, body, dest interface{}) error {
+	uri := c.baseURI.ResolveReference(relURI)
+
+	var bodyReader io.Reader
+	if body == nil {
+		bodyReader = nil
+	} else if br, ok := body.(io.Reader); ok {
+		bodyReader = br
+	} else {
+		bodyData, err := json.Marshal(body)
+		if err != nil {
+			return fmt.Errorf("cannot encode body: %w", err)
+		}
+
+		bodyReader = bytes.NewReader(bodyData)
+	}
+
+	req, err := http.NewRequest(method, uri.String(), bodyReader)
+	if err != nil {
+		return fmt.Errorf("cannot create request: %w", err)
+	}
+
+	if c.APIKey != "" {
+		req.Header.Set("Authorization", "Bearer "+c.APIKey)
+	}
+
+	if c.ProjectId != nil {
+		req.Header.Set("X-Eventline-Project-Id", c.ProjectId.String())
+	}
+
+	res, err := c.httpClient.Do(req)
+	if err != nil {
+		return fmt.Errorf("cannot send request: %w", err)
+	}
+	defer res.Body.Close()
+
+	resBody, err := ioutil.ReadAll(res.Body)
+	if err != nil {
+		return fmt.Errorf("cannot read response body: %w", err)
+	}
+
+	if res.StatusCode < 200 || res.StatusCode >= 300 {
+		var apiErr APIError
+
+		err := json.Unmarshal(resBody, &apiErr)
+		if err == nil {
+			return &apiErr
+		}
+
+		return fmt.Errorf("request failed with status %d: %s",
+			res.StatusCode, string(resBody))
+	}
+
+	if dest != nil {
+		if dataPtr, ok := dest.(*[]byte); ok {
+			*dataPtr = resBody
+		} else {
+			if len(resBody) == 0 {
+				return fmt.Errorf("empty response body")
+			}
+
+			if err := json.Unmarshal(resBody, dest); err != nil {
+				return fmt.Errorf("cannot decode response body: %w", err)
+			}
+		}
+	}
+
+	return err
+}
+
+func (c *Client) FetchProjects() (eventline.Projects, error) {
+	var projects eventline.Projects
+
+	cursor := eventline.Cursor{Size: 1}
+
+	for {
+		var page ProjectPage
+
+		uri := NewURL("projects")
+		uri.RawQuery = cursor.Query().Encode()
+
+		err := c.SendRequest("GET", uri, nil, &page)
+		if err != nil {
+			return nil, err
+		}
+
+		projects = append(projects, page.Elements...)
+
+		if page.Next == nil {
+			break
+		}
+
+		cursor = *page.Next
+	}
+
+	return projects, nil
+}
+
+func (c *Client) FetchProjectById(id eventline.Id) (*eventline.Project, error) {
+	uri := NewURL("projects", "id", id.String())
+
+	var project eventline.Project
+
+	err := c.SendRequest("GET", uri, nil, &project)
+	if err != nil {
+		return nil, err
+	}
+
+	return &project, nil
+}
+
+func (c *Client) FetchProjectByName(name string) (*eventline.Project, error) {
+	uri := NewURL("projects", "name", name)
+
+	var project eventline.Project
+
+	err := c.SendRequest("GET", uri, nil, &project)
+	if err != nil {
+		return nil, err
+	}
+
+	return &project, nil
+}
+
+func (c *Client) CreateProject(project *eventline.Project) error {
+	uri := NewURL("projects")
+
+	return c.SendRequest("POST", uri, project, project)
+}
+
+func (c *Client) DeleteProject(id eventline.Id) error {
+	uri := NewURL("projects", "id", id.String())
+
+	return c.SendRequest("DELETE", uri, nil, nil)
+}
+
+func (c *Client) UpdateProject(project *eventline.Project) error {
+	uri := NewURL("projects", "id", project.Id.String())
+
+	return c.SendRequest("PUT", uri, project, nil)
+}
+
+func (c *Client) ReplayEvent(id string) (*eventline.Event, error) {
+	var event eventline.Event
+
+	uri := NewURL("events", "id", id, "replay")
+
+	err := c.SendRequest("POST", uri, nil, &event)
+	if err != nil {
+		return nil, err
+	}
+
+	return &event, nil
+}
+
+func (c *Client) FetchJobByName(name string) (*eventline.Job, error) {
+	uri := NewURL("jobs", "name", name)
+
+	var job eventline.Job
+
+	err := c.SendRequest("GET", uri, nil, &job)
+	if err != nil {
+		return nil, err
+	}
+
+	return &job, nil
+}
+
+func (c *Client) FetchJobs() (eventline.Jobs, error) {
+	var jobs eventline.Jobs
+
+	cursor := eventline.Cursor{Size: 20}
+
+	for {
+		var page JobPage
+
+		uri := NewURL("jobs")
+		uri.RawQuery = cursor.Query().Encode()
+
+		err := c.SendRequest("GET", uri, nil, &page)
+		if err != nil {
+			return nil, err
+		}
+
+		jobs = append(jobs, page.Elements...)
+
+		if page.Next == nil {
+			break
+		}
+
+		cursor = *page.Next
+	}
+
+	return jobs, nil
+}
+
+func (c *Client) DeployJob(spec *eventline.JobSpec, dryRun bool) (*eventline.Job, error) {
+	uri := NewURL("jobs", "name", spec.Name)
+
+	query := url.Values{}
+	if dryRun {
+		query.Add("dry-run", "")
+	}
+	uri.RawQuery = query.Encode()
+
+	if dryRun {
+		if err := c.SendRequest("PUT", uri, spec, nil); err != nil {
+			return nil, err
+		}
+
+		return nil, nil
+	} else {
+		var job eventline.Job
+
+		if err := c.SendRequest("PUT", uri, spec, &job); err != nil {
+			return nil, err
+		}
+
+		return &job, nil
+	}
+
+}
+
+func (c *Client) DeployJobs(specs []*eventline.JobSpec, dryRun bool) ([]*eventline.Job, error) {
+	uri := NewURL("jobs")
+
+	query := url.Values{}
+	if dryRun {
+		query.Add("dry-run", "")
+	}
+	uri.RawQuery = query.Encode()
+
+	if dryRun {
+		if err := c.SendRequest("PUT", uri, specs, nil); err != nil {
+			return nil, err
+		}
+
+		return nil, nil
+	} else {
+		var jobs []*eventline.Job
+
+		if err := c.SendRequest("PUT", uri, specs, &jobs); err != nil {
+			return nil, err
+		}
+
+		return jobs, nil
+	}
+}
+
+func (c *Client) DeleteJob(id string) error {
+	uri := NewURL("jobs", "id", id)
+
+	return c.SendRequest("DELETE", uri, nil, nil)
+}
+
+func (c *Client) ExecuteJob(id string, input *eventline.JobExecutionInput) (*eventline.JobExecution, error) {
+	uri := NewURL("jobs", "id", id, "execute")
+
+	var jobExecution eventline.JobExecution
+
+	if err := c.SendRequest("POST", uri, input, &jobExecution); err != nil {
+		return nil, err
+	}
+
+	return &jobExecution, nil
+}
+
+func (c *Client) FetchJobExecution(id eventline.Id) (*eventline.JobExecution, error) {
+	uri := NewURL("job_executions", "id", id.String())
+
+	var je eventline.JobExecution
+
+	err := c.SendRequest("GET", uri, nil, &je)
+	if err != nil {
+		return nil, err
+	}
+
+	return &je, nil
+}
+
+func (c *Client) AbortJobExecution(id eventline.Id) error {
+	uri := NewURL("job_executions", "id", id.String(), "abort")
+
+	return c.SendRequest("POST", uri, nil, nil)
+}
+
+func (c *Client) RestartJobExecution(id eventline.Id) error {
+	uri := NewURL("job_executions", "id", id.String(), "restart")
+
+	return c.SendRequest("POST", uri, nil, nil)
+}
diff --git a/external/evcli/config.go b/external/evcli/config.go
new file mode 100644
index 0000000..df20c45
--- /dev/null
+++ b/external/evcli/config.go
@@ -0,0 +1,6 @@
+package evcli
+
+type APIConfig struct {
+	Endpoint string `json:"endpoint,omitempty"`
+	Key      string `json:"key,omitempty"`
+}
diff --git a/external/evcli/http.go b/external/evcli/http.go
new file mode 100644
index 0000000..f4aae1c
--- /dev/null
+++ b/external/evcli/http.go
@@ -0,0 +1,14 @@
+package evcli
+
+import (
+	"net/http"
+	"time"
+)
+
+func NewHTTPClient() *http.Client {
+	c := &http.Client{
+		Timeout: 30 * time.Second,
+	}
+
+	return c
+}
diff --git a/external/evcli/url.go b/external/evcli/url.go
new file mode 100644
index 0000000..e1e99a8
--- /dev/null
+++ b/external/evcli/url.go
@@ -0,0 +1,42 @@
+package evcli
+
+import (
+	"bytes"
+	"net/url"
+)
+
+// The url package has an extremely confusing interface. One could believe
+// setting RawPath is enough for it to be used during encoding, but this is
+// not the case. Instead, *both* must be set, and (*url.URL).EscapedPath will
+// check that RawPath is a valid encoding of RawPath. If this is not the case,
+// RawPath will be ignored.
+//
+// In most cases, the problem is not apparent. But if the path contains
+// segments with slash or space characters, it is almost guaranteed to misuse
+// Path and RawPath and double-encode these characters.
+//
+// The problem was signaled years ago on
+// https://github.com/golang/go/issues/17340 but was of course ignored and
+// buried.
+//
+// As usual with standard library issues, the only thing we can do is add
+// utils to work around it.
+
+func NewURL(pathSegments ...string) *url.URL {
+	var buf bytes.Buffer
+	buf.WriteByte('/')
+	for i, s := range pathSegments {
+		if i > 0 {
+			buf.WriteByte('/')
+		}
+		buf.WriteString(url.PathEscape(s))
+	}
+	rawPath := buf.String()
+
+	path, _ := url.PathUnescape(rawPath)
+
+	return &url.URL{
+		Path:    path,
+		RawPath: rawPath,
+	}
+}
diff --git a/external/evcli/url_test.go b/external/evcli/url_test.go
new file mode 100644
index 0000000..aa13281
--- /dev/null
+++ b/external/evcli/url_test.go
@@ -0,0 +1,23 @@
+package evcli
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewURL(t *testing.T) {
+	assert := assert.New(t)
+
+	assert.Equal("/",
+		NewURL().String())
+
+	assert.Equal("/a",
+		NewURL("a").String())
+
+	assert.Equal("/a/bcd/ef",
+		NewURL("a", "bcd", "ef").String())
+
+	assert.Equal("/a/b%20c/e%2Ff",
+		NewURL("a", "b c", "e/f").String())
+}