From 89c2e2b38ee57f40217db83fb34e014102b0fb49 Mon Sep 17 00:00:00 2001
From: Juan Roig <jaroig@outlook.com>
Date: Tue, 7 Nov 2023 00:21:48 -0500
Subject: reorganize functions to aplus-related and canvas-related.

---
 aplus.go | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 aplus.go

(limited to 'aplus.go')

diff --git a/aplus.go b/aplus.go
new file mode 100644
index 0000000..e2ec53b
--- /dev/null
+++ b/aplus.go
@@ -0,0 +1,76 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+)
+
+func get_aplus(token string, link string, client http.Client) string {
+	resp, err := client.Get(link)
+
+	if err != nil {
+		fmt.Println("Error performing GET request to initial link.")
+	}
+	defer resp.Body.Close()
+	body, _ := io.ReadAll(resp.Body)
+
+	var aplus Aplus
+	json.Unmarshal(body, &aplus)
+
+	return aplus.URL
+}
+
+func get_form_from_request_body(req_body []byte) string {
+	body_str := string(req_body)
+	form_start := strings.Index(body_str, "<form")
+	form_end := strings.Index(body_str, "</form>") + 7
+	form_html := req_body[form_start:form_end]
+
+	return string(form_html)
+}
+
+// parse_form extracts form fields and values from the given HTML form string.
+func parse_form(form_html string) url.Values {
+	form_values := make(url.Values)
+	inputs := strings.Split(form_html, "<input")
+
+	for _, input := range inputs {
+		// Extract field name and value
+		name := extract_attribute(input, "name")
+		value := extract_attribute(input, "value")
+
+		if name != "" {
+			form_values.Add(name, value)
+		}
+	}
+
+	return form_values
+}
+
+func extract_attribute(input string, attribute string) string {
+	start := strings.Index(input, attribute+"=\"")
+	if start == -1 {
+		start = strings.Index(input, attribute+"='")
+	}
+
+	if start == -1 {
+		return ""
+	}
+
+	start += len(attribute) + 2
+
+	end := strings.Index(input[start:], "\"")
+	if end == -1 {
+		end = strings.Index(input[start:], "'")
+	}
+
+	if end == -1 {
+		return ""
+	}
+
+	return input[start : start+end]
+}
-- 
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