71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
package web
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import (
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"bytes"
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"encoding/json"
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"io"
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"mime/multipart"
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"net/http"
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"os"
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"path/filepath"
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"time"
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)
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// JSONRequest issues a GET request to the specified URL and reads the returned
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// JSON into value. See json.Unmarshal for the rules for converting JSON into a
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// value.
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func JSONRequest(url string, value interface{}) error {
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netClient := &http.Client{
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Timeout: time.Second * 20,
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}
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resp, err := netClient.Get(url)
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if err != nil {
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return err
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}
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err = json.NewDecoder(resp.Body).Decode(&value)
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resp.Body.Close()
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if err != nil {
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return err
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}
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return nil
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}
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// NewRequestWithFile Create a Request with file as body
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func NewRequestWithFile(url, filename string) (*http.Request, error) {
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buf := bytes.NewBuffer(nil)
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bodyWriter := multipart.NewWriter(buf)
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// We need to truncate the input filename, as the server might be stupid and take the input
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// filename verbatim. Then, he will have directory parts which do not exist on the server.
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fileWriter, err := bodyWriter.CreateFormFile("file", filepath.Base(filename))
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if err != nil {
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return nil, err
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}
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file, err := os.Open(filename)
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if err != nil {
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return nil, err
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}
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defer file.Close()
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if _, err := io.Copy(fileWriter, file); err != nil {
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return nil, err
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}
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// We have all the data written to the bodyWriter.
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// Now we can infer the content type
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contentType := bodyWriter.FormDataContentType()
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// This is mandatory as it flushes the buffer.
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bodyWriter.Close()
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req, err := http.NewRequest(http.MethodPost, url, buf)
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if err != nil {
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return nil, err
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}
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req.Header.Set("Content-Type", contentType)
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return req, nil
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}
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