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package eduvpn
import (
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strings"
)
type HTTPResourceError struct {
URL string
Err error
}
func (e *HTTPResourceError) Error() string {
return fmt.Sprintf("failed obtaining HTTP resource %s with error %v", e.URL, e.Err)
}
type HTTPStatusError struct {
URL string
Status int
}
func (e *HTTPStatusError) Error() string {
return fmt.Sprintf("failed obtaining HTTP resource %s as it gave an unsuccesful status code %d", e.URL, e.Status)
}
type HTTPReadError struct {
URL string
Err error
}
func (e *HTTPReadError) Error() string {
return fmt.Sprintf("failed reading HTTP resource %s with error %v", e.URL, e.Err)
}
type HTTPParseJsonError struct {
URL string
Body string
Err error
}
func (e *HTTPParseJsonError) Error() string {
return fmt.Sprintf("failed parsing json %s for HTTP resource %s with error %v", e.Body, e.URL, e.Err)
}
type HTTPRequestCreateError struct {
URL string
Err error
}
func (e *HTTPRequestCreateError) Error() string {
return fmt.Sprintf("failed to create HTTP request with url %s and error %v", e.URL, e.Err)
}
type HTTPOptionalParams struct {
Headers *http.Header
}
func HTTPGet(url string) ([]byte, error) {
return HTTPGetWithOptionalParams(url, nil)
}
func HTTPGetWithOptionalParams(url string, opts *HTTPOptionalParams) ([]byte, error) {
client := &http.Client{}
req, reqErr := http.NewRequest(http.MethodGet, url, nil)
if reqErr != nil {
return nil, &HTTPRequestCreateError{URL: url, Err: reqErr}
}
if opts != nil && opts.Headers != nil {
for k, v := range *opts.Headers {
req.Header.Add(k, v[0])
}
}
resp, respErr := client.Do(req)
if respErr != nil {
return nil, &HTTPResourceError{URL: url, Err: respErr}
}
defer resp.Body.Close()
body, readErr := ioutil.ReadAll(resp.Body)
if readErr != nil {
return nil, &HTTPReadError{URL: url, Err: readErr}
}
return body, nil
}
func HTTPPost(url string, body url.Values) ([]byte, error) {
return HTTPPostWithOptionalParams(url, body, nil)
}
func HTTPPostWithOptionalParams(url string, data url.Values, opts *HTTPOptionalParams) ([]byte, error) {
client := &http.Client{}
req, reqErr := http.NewRequest(http.MethodPost, url, strings.NewReader(data.Encode()))
if reqErr != nil {
return nil, &HTTPRequestCreateError{URL: url, Err: reqErr}
}
if opts != nil && opts.Headers != nil {
for k, v := range *opts.Headers {
req.Header.Add(k, v[0])
}
}
resp, respErr := client.Do(req)
if respErr != nil {
return nil, &HTTPResourceError{URL: url, Err: respErr}
}
defer resp.Body.Close()
body, readErr := ioutil.ReadAll(resp.Body)
if readErr != nil {
return nil, &HTTPReadError{URL: url, Err: readErr}
}
return body, nil
}
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