Make Client thread-safe & add docs #495

Merged
6543 merged 6 commits from :doc-concurrency into master 2021-03-04 20:19:56 +00:00
4 changed files with 68 additions and 21 deletions

View File

@ -26,7 +26,7 @@ func Version() string {
return "0.14.0"
}
// Client represents a Gitea API client.
// Client represents a thread-safe Gitea API client.
type Client struct {
url string
accessToken string
@ -37,6 +37,7 @@ type Client struct {
debug bool
client *http.Client
ctx context.Context
mutex sync.RWMutex
serverVersion *version.Version
getVersionOnce sync.Once
}
@ -47,6 +48,7 @@ type Response struct {
}
// NewClient initializes and returns a API client.
// Usage of all gitea.Client methods is concurrency-safe.
func NewClient(url string, options ...func(*Client)) (*Client, error) {
client := &Client{
url: strings.TrimSuffix(url, "/"),
@ -72,14 +74,23 @@ func NewClientWithHTTP(url string, httpClient *http.Client) *Client {
// SetHTTPClient is an option for NewClient to set custom http client
func SetHTTPClient(httpClient *http.Client) func(client *Client) {
return func(client *Client) {
client.client = httpClient
client.SetHTTPClient(httpClient)
}
}
// SetHTTPClient replaces default http.Client with user given one.
func (c *Client) SetHTTPClient(client *http.Client) {
c.mutex.Lock()
c.client = client
c.mutex.Unlock()
}
// SetToken is an option for NewClient to set token
func SetToken(token string) func(client *Client) {
return func(client *Client) {
client.mutex.Lock()
client.accessToken = token
client.mutex.Unlock()
}
}
@ -92,7 +103,9 @@ func SetBasicAuth(username, password string) func(client *Client) {
// SetBasicAuth sets username and password
func (c *Client) SetBasicAuth(username, password string) {
c.mutex.Lock()
c.username, c.password = username, password
c.mutex.Unlock()
}
// SetOTP is an option for NewClient to set OTP for 2FA
@ -104,7 +117,9 @@ func SetOTP(otp string) func(client *Client) {
// SetOTP sets OTP for 2FA
func (c *Client) SetOTP(otp string) {
c.mutex.Lock()
c.otp = otp
c.mutex.Unlock()
}
// SetContext is an option for NewClient to set context
@ -116,12 +131,9 @@ func SetContext(ctx context.Context) func(client *Client) {
// SetContext set context witch is used for http requests
func (c *Client) SetContext(ctx context.Context) {
c.mutex.Lock()
c.ctx = ctx
}
// SetHTTPClient replaces default http.Client with user given one.
func (c *Client) SetHTTPClient(client *http.Client) {
c.client = client
c.mutex.Unlock()
}
// SetSudo is an option for NewClient to set sudo header
@ -133,43 +145,57 @@ func SetSudo(sudo string) func(client *Client) {
// SetSudo sets username to impersonate.
func (c *Client) SetSudo(sudo string) {
c.mutex.Lock()
c.sudo = sudo
c.mutex.Unlock()
}
// SetDebugMode is an option for NewClient to enable debug mode
func SetDebugMode() func(client *Client) {
return func(client *Client) {
client.mutex.Lock()
client.debug = true
client.mutex.Unlock()
}
}
func (c *Client) getWebResponse(method, path string, body io.Reader) ([]byte, *Response, error) {
if c.debug {
c.mutex.RLock()
debug := c.debug
if debug {
fmt.Printf("%s: %s\nBody: %v\n", method, c.url+path, body)
}
req, err := http.NewRequestWithContext(c.ctx, method, c.url+path, body)
client := c.client // client ref can change from this point on so safe it
c.mutex.RUnlock()
if err != nil {
return nil, nil, err
}
resp, err := c.client.Do(req)
resp, err := client.Do(req)
if err != nil {
return nil, nil, err
}
defer resp.Body.Close()
data, err := ioutil.ReadAll(resp.Body)
if c.debug {
if debug {
fmt.Printf("Response: %v\n\n", resp)
}
return data, &Response{resp}, nil
}
func (c *Client) doRequest(method, path string, header http.Header, body io.Reader) (*Response, error) {
if c.debug {
c.mutex.RLock()
debug := c.debug
if debug {
fmt.Printf("%s: %s\nHeader: %v\nBody: %s\n", method, c.url+"/api/v1"+path, header, body)
}
req, err := http.NewRequestWithContext(c.ctx, method, c.url+"/api/v1"+path, body)
if err != nil {
c.mutex.RUnlock()
return nil, err
}
if len(c.accessToken) != 0 {
@ -184,15 +210,19 @@ func (c *Client) doRequest(method, path string, header http.Header, body io.Read
if len(c.sudo) != 0 {
req.Header.Set("Sudo", c.sudo)
}
client := c.client // client ref can change from this point on so safe it
c.mutex.RUnlock()
for k, v := range header {
req.Header[k] = v
}
resp, err := c.client.Do(req)
resp, err := client.Do(req)
if err != nil {
return nil, err
}
if c.debug {
if debug {
fmt.Printf("Response: %v\n\n", resp)
}
return &Response{resp}, nil

View File

@ -253,6 +253,8 @@ func (c *Client) EditIssue(owner, repo string, index int64, opt EditIssueOption)
func (c *Client) issueBackwardsCompatibility(issue *Issue) {
if c.checkServerVersionGreaterThanOrEqual(version1_12_0) != nil {
c.mutex.RLock()
issue.HTMLURL = fmt.Sprintf("%s/%s/issues/%d", c.url, issue.Repository.FullName, issue.Index)
c.mutex.RUnlock()
}
}

View File

@ -27,12 +27,15 @@ type ListAccessTokensOptions struct {
// ListAccessTokens lists all the access tokens of user
func (c *Client) ListAccessTokens(opts ListAccessTokensOptions) ([]*AccessToken, *Response, error) {
if len(c.username) == 0 {
c.mutex.RLock()
username := c.username
c.mutex.RUnlock()
if len(username) == 0 {
return nil, nil, fmt.Errorf("\"username\" not set: only BasicAuth allowed")
}
opts.setDefaults()
tokens := make([]*AccessToken, 0, opts.PageSize)
resp, err := c.getParsedResponse("GET", fmt.Sprintf("/users/%s/tokens?%s", c.username, opts.getURLQuery().Encode()), jsonHeader, nil, &tokens)
resp, err := c.getParsedResponse("GET", fmt.Sprintf("/users/%s/tokens?%s", username, opts.getURLQuery().Encode()), jsonHeader, nil, &tokens)
return tokens, resp, err
}
@ -43,7 +46,10 @@ type CreateAccessTokenOption struct {
// CreateAccessToken create one access token with options
func (c *Client) CreateAccessToken(opt CreateAccessTokenOption) (*AccessToken, *Response, error) {
if len(c.username) == 0 {
c.mutex.RLock()
username := c.username
c.mutex.RUnlock()
if len(username) == 0 {
return nil, nil, fmt.Errorf("\"username\" not set: only BasicAuth allowed")
}
body, err := json.Marshal(&opt)
@ -51,13 +57,16 @@ func (c *Client) CreateAccessToken(opt CreateAccessTokenOption) (*AccessToken, *
return nil, nil, err
}
t := new(AccessToken)
resp, err := c.getParsedResponse("POST", fmt.Sprintf("/users/%s/tokens", c.username), jsonHeader, bytes.NewReader(body), t)
resp, err := c.getParsedResponse("POST", fmt.Sprintf("/users/%s/tokens", username), jsonHeader, bytes.NewReader(body), t)
return t, resp, err
}
// DeleteAccessToken delete token, identified by ID and if not available by name
func (c *Client) DeleteAccessToken(value interface{}) (*Response, error) {
if len(c.username) == 0 {
c.mutex.RLock()
username := c.username
c.mutex.RUnlock()
if len(username) == 0 {
return nil, fmt.Errorf("\"username\" not set: only BasicAuth allowed")
}
@ -75,6 +84,6 @@ func (c *Client) DeleteAccessToken(value interface{}) (*Response, error) {
return nil, fmt.Errorf("only string and int64 supported")
}
_, resp, err := c.getResponse("DELETE", fmt.Sprintf("/users/%s/tokens/%s", c.username, token), jsonHeader, nil)
_, resp, err := c.getResponse("DELETE", fmt.Sprintf("/users/%s/tokens/%s", username, token), jsonHeader, nil)
return resp, err
}

View File

@ -31,7 +31,10 @@ func (c *Client) CheckServerVersionConstraint(constraint string) error {
return err
}
if !check.Check(c.serverVersion) {
return fmt.Errorf("gitea server at %s does not satisfy version constraint %s", c.url, constraint)
c.mutex.RLock()
url := c.url
c.mutex.RUnlock()
return fmt.Errorf("gitea server at %s does not satisfy version constraint %s", url, constraint)
}
return nil
}
@ -51,7 +54,10 @@ func (c *Client) checkServerVersionGreaterThanOrEqual(v *version.Version) error
}
if !c.serverVersion.GreaterThanOrEqual(v) {
return fmt.Errorf("gitea server at %s is older than %s", c.url, v.Original())
c.mutex.RLock()
url := c.url
c.mutex.RUnlock()
return fmt.Errorf("gitea server at %s is older than %s", url, v.Original())
}
return nil
}