Vendor libs

vendor/github.com/peterhellberg/giphy/client.go

@@ -0,0 +1,117 @@
+package giphy
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+)
+
+// DefaultClient is the default Giphy API client
+var DefaultClient = NewClient()
+
+// PublicBetaKey is the public beta key for the Giphy API
+var PublicBetaKey = "dc6zaTOxFJmzC"
+
+// A Client communicates with the Giphy API.
+type Client struct {
+	// APIKey is the key used for requests to the Giphy API
+	APIKey string
+
+	// Limit is the limit used for requests to the Giphy API
+	Limit int
+
+	// Rating is the rating used for requests to the Giphy API
+	Rating string
+
+	// BaseURL is the base url for Giphy API.
+	BaseURL *url.URL
+
+	// BasePath is the base path for the gifs endpoints
+	BasePath string
+
+	// User agent used for HTTP requests to Giphy API.
+	UserAgent string
+
+	// HTTP client used to communicate with the Giphy API.
+	httpClient *http.Client
+}
+
+// NewClient returns a new Giphy API client.
+// If no *http.Client were provided then http.DefaultClient is used.
+func NewClient(httpClients ...*http.Client) *Client {
+	var httpClient *http.Client
+
+	if len(httpClients) > 0 && httpClients[0] != nil {
+		httpClient = httpClients[0]
+	} else {
+		cloned := *http.DefaultClient
+		httpClient = &cloned
+	}
+
+	c := &Client{
+		APIKey: Env("GIPHY_API_KEY", PublicBetaKey),
+		Rating: Env("GIPHY_RATING", "g"),
+		Limit:  EnvInt("GIPHY_LIMIT", 10),
+		BaseURL: &url.URL{
+			Scheme: Env("GIPHY_BASE_URL_SCHEME", "https"),
+			Host:   Env("GIPHY_BASE_URL_HOST", "api.giphy.com"),
+		},
+		BasePath:   Env("GIPHY_BASE_PATH", "/v1"),
+		UserAgent:  Env("GIPHY_USER_AGENT", "giphy.go"),
+		httpClient: httpClient,
+	}
+
+	return c
+}
+
+// NewRequest creates an API request.
+func (c *Client) NewRequest(s string) (*http.Request, error) {
+	rel, err := url.Parse(c.BasePath + s)
+	if err != nil {
+		return nil, err
+	}
+
+	q := rel.Query()
+	q.Set("api_key", c.APIKey)
+	q.Set("rating", c.Rating)
+	rel.RawQuery = q.Encode()
+
+	u := c.BaseURL.ResolveReference(rel)
+
+	if EnvBool("GIPHY_VERBOSE", false) {
+		fmt.Println("giphy: GET", u.String())
+	}
+
+	req, err := http.NewRequest("GET", u.String(), nil)
+	if err != nil {
+		return nil, err
+	}
+
+	req.Header.Add("User-Agent", c.UserAgent)
+	return req, nil
+}
+
+// Do sends an API request and returns the API response. The API response is
+// decoded and stored in the value pointed to by v, or returned as an error if
+// an API error has occurred.
+func (c *Client) Do(req *http.Request, v interface{}) (*http.Response, error) {
+	// Make sure to close the connection after replying to this request
+	req.Close = true
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return resp, err
+	}
+	defer resp.Body.Close()
+
+	if v != nil {
+		err = json.NewDecoder(resp.Body).Decode(v)
+	}
+
+	if err != nil {
+		return nil, fmt.Errorf("error reading response from %s %s: %s", req.Method, req.URL.RequestURI(), err)
+	}
+
+	return resp, nil
+}