187 lines
4.7 KiB
V
187 lines
4.7 KiB
V
// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module http
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import net.urllib
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const (
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max_redirects = 4
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content_type_default = 'text/plain'
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bufsize = 1536
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)
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// FetchConfig holds configurations of fetch
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pub struct FetchConfig {
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pub mut:
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url string
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method Method
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header Header
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data string
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params map[string]string
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cookies map[string]string
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user_agent string = 'v.http'
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verbose bool
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}
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pub fn new_request(method Method, url_ string, data string) ?Request {
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url := if method == .get { url_ + '?' + data } else { url_ }
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// println('new req() method=$method url="$url" dta="$data"')
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return Request{
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method: method
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url: url
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data: data
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/*
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headers: {
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'Accept-Encoding': 'compress'
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}
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*/
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}
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}
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// get sends a GET HTTP request to the URL
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pub fn get(url string) ?Response {
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return fetch(method: .get, url: url)
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}
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// post sends a POST HTTP request to the URL with a string data
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pub fn post(url string, data string) ?Response {
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return fetch(
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method: .post
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url: url
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data: data
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header: new_header(key: .content_type, value: http.content_type_default)
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)
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}
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// post_json sends a POST HTTP request to the URL with a JSON data
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pub fn post_json(url string, data string) ?Response {
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return fetch(
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method: .post
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url: url
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data: data
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header: new_header(key: .content_type, value: 'application/json')
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)
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}
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// post_form sends a POST HTTP request to the URL with X-WWW-FORM-URLENCODED data
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pub fn post_form(url string, data map[string]string) ?Response {
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return fetch(
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method: .post
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url: url
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header: new_header(key: .content_type, value: 'application/x-www-form-urlencoded')
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data: url_encode_form_data(data)
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)
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}
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// put sends a PUT HTTP request to the URL with a string data
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pub fn put(url string, data string) ?Response {
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return fetch(
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method: .put
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url: url
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data: data
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header: new_header(key: .content_type, value: http.content_type_default)
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)
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}
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// patch sends a PATCH HTTP request to the URL with a string data
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pub fn patch(url string, data string) ?Response {
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return fetch(
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method: .patch
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url: url
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data: data
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header: new_header(key: .content_type, value: http.content_type_default)
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)
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}
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// head sends a HEAD HTTP request to the URL
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pub fn head(url string) ?Response {
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return fetch(method: .head, url: url)
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}
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// delete sends a DELETE HTTP request to the URL
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pub fn delete(url string) ?Response {
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return fetch(method: .delete, url: url)
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}
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// fetch sends an HTTP request to the URL with the given method and configurations
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pub fn fetch(config FetchConfig) ?Response {
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if config.url == '' {
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return error('http.fetch: empty url')
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}
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url := build_url_from_fetch(config) or { return error('http.fetch: invalid url $config.url') }
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req := Request{
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method: config.method
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url: url
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data: config.data
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header: config.header
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cookies: config.cookies
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user_agent: config.user_agent
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user_ptr: 0
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verbose: config.verbose
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}
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res := req.do() ?
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return res
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}
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// get_text sends a GET HTTP request to the URL and returns the text content of the response
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pub fn get_text(url string) string {
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resp := fetch(url: url, method: .get) or { return '' }
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return resp.text
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}
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// url_encode_form_data converts mapped data to an URL encoded string
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pub fn url_encode_form_data(data map[string]string) string {
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mut pieces := []string{}
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for key_, value_ in data {
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key := urllib.query_escape(key_)
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value := urllib.query_escape(value_)
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pieces << '$key=$value'
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}
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return pieces.join('&')
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}
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[deprecated: 'use fetch()']
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fn fetch_with_method(method Method, _config FetchConfig) ?Response {
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mut config := _config
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config.method = method
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return fetch(config)
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}
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fn build_url_from_fetch(config FetchConfig) ?string {
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mut url := urllib.parse(config.url) ?
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if config.params.len == 0 {
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return url.str()
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}
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mut pieces := []string{cap: config.params.len}
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for key, val in config.params {
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pieces << '$key=$val'
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}
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mut query := pieces.join('&')
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if url.raw_query.len > 1 {
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query = url.raw_query + '&' + query
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}
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url.raw_query = query
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return url.str()
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}
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// unescape_url is deprecated, use urllib.query_unescape() instead
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pub fn unescape_url(s string) string {
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panic('http.unescape_url() was replaced with urllib.query_unescape()')
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}
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// escape_url is deprecated, use urllib.query_escape() instead
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pub fn escape_url(s string) string {
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panic('http.escape_url() was replaced with urllib.query_escape()')
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}
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// unescape is deprecated, use urllib.query_escape() instead
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pub fn unescape(s string) string {
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panic('http.unescape() was replaced with http.unescape_url()')
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}
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// escape is deprecated, use urllib.query_unescape() instead
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pub fn escape(s string) string {
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panic('http.escape() was replaced with http.escape_url()')
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}
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