isolate form HTML

main.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"strings"
 )
 
 func get_courses(token string, link string, client http.Client) []CanvasCourse {
@@ -58,21 +59,22 @@ func main() {
 
 	// https://canvas.instructure.com/api/v1/courses?access_token={}&per_page=100", canvas_token
 	base_link := "https://floridapolytechnic.instructure.com/api/v1"
-	token := "insert api key here"
+	token := "token here"
+
+	// course selection by user happens below
 	//favorites := fmt.Sprintf("%s/users/self/favorites/courses?access_token=%s&per_page=100", base_link, token)
 	//all_courses := fmt.Sprintf("%s/courses?access_token=%s&per_page=100", base_link,token)
-
 	//var canvas_courses []CanvasCourse
 	//canvas_courses = get_courses(token, favorites, client)
 	//var course_ids []uint64
 	//course_ids = get_course_ids(canvas_courses)
-
 	//selected := 1 // course_ids[selected]
+	// course selection by user happens above
+
 	aplus_link := fmt.Sprintf("%s/courses/%d/external_tools/sessionless_launch?id=913&access_token=%s", base_link, 7329, token) // 7329 always works
 	var aplus string
 	aplus = get_aplus(token, aplus_link, client)
 	fmt.Println(aplus)
-
 	resp, err := client.Get(aplus)
 
 	if err != nil {
@@ -82,9 +84,104 @@ func main() {
 	//fmt.Println(resp)
 
 	defer resp.Body.Close()
-	//body, err := io.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 
 	//fmt.Println(string(body))
 	//fmt.Println(resp)
+	//fmt.Println("Status code:", resp.StatusCode)
+
+	if err != nil {
+		// handle error
+	}
+
+	body_str := string(body)
+
+	form_start := strings.Index(body_str, "<form")
+	form_end := strings.Index(body_str, "</form>") + 7
+	form_html := body[form_start:form_end]
+
+	fmt.Println(string(form_html))
 
 }
+
+/*
+
+The code below takes the form that defines the post request we must perform to the aplusattendance.com site, and actually maps it to a request.
+what I have to do is programmatically grab that form, translate it on the fly, and submit the request rather than doing this manually.
+// Define the form data as a map of key-value pairs.
+	formData := map[string]string{
+		"oauth_consumer_key":               "aplus-attendance",
+		"oauth_signature_method":           "HMAC-SHA1",
+		"oauth_timestamp":                 "1698650339",
+		"oauth_nonce":                    "nV9EswFv8LtXXRVgRmWW8NSQ7mO3Sheeqi1SjJWPJGE",
+		"oauth_version":                  "1.0",
+		"context_id":                    "0c1f49ff7b35cba2226f93e9cbb84ae810ed00ab",
+		"context_label":                 "CIS4367.01I&T",
+		"context_title":                 "Computer Security(FA 2023_CIS4367.01 I&T",
+		"custom_canvas_api_domain":      "floridapolytechnic.instructure.com",
+		"custom_canvas_course_id":       "7329",
+		"custom_canvas_enrollment_state": "active",
+		"custom_canvas_user_id":         "6858",
+		"custom_canvas_user_login_id":   "jroig9590",
+		"custom_canvas_workflow_state":  "available",
+		"ext_roles":                     "urn:lti:instrole:ims/lis/Student,urn:lti:role:ims/lis/Learner,urn:lti:sysrole:ims/lis/User",
+		"launch_presentation_document_target": "iframe",
+		"launch_presentation_locale":   "en",
+		"launch_presentation_return_url": "https://floridapolytechnic.instructure.com/courses/7329",
+		"lis_course_offering_sourcedid": "7093",
+		"lis_person_contact_email_primary": "jroig9590@floridapoly.edu",
+		"lis_person_name_family":         "Roig",
+		"lis_person_name_full":           "Juan Roig",
+		"lis_person_name_given":          "Juan",
+		"lis_person_sourcedid":           "10308",
+		"lti_message_type":               "basic-lti-launch-request",
+		"lti_version":                    "LTI-1p0",
+		"oauth_callback":                "about:blank",
+		"resource_link_id":              "0c1f49ff7b35cba2226f93e9cbb84ae810ed00ab",
+		"resource_link_title":           "aPlus+ Attendance",
+		"roles":                         "Learner",
+		"tool_consumer_info_product_family_code": "canvas",
+		"tool_consumer_info_version":           "cloud",
+		"tool_consumer_instance_contact_email": "notifications@instructure.com",
+		"tool_consumer_instance_guid":          "7db438071375c02373713c12c73869ff2f470b68.floridapolytechnic.instructure.com",
+		"tool_consumer_instance_name":          "Florida Polytechnic University",
+		"user_id":                             "91ba5b390440f646d9d4c47a0dc14f91cf595887",
+		"user_image":                           "https://canvas.instructure.com/images/messages/avatar-50.png",
+		"oauth_signature":                      "u3mIfUZ+qgSN4zzk0Ipklc0A7KU=",
+	}
+
+	// Create an HTTP client
+	client := &http.Client{}
+
+	// Create a new request
+	req, err := http.NewRequest("POST", "https://floridapoly.aplusattendance.com/canvas", bytes.NewBuffer([]byte{}))
+	if err != nil {
+		fmt.Println("Error creating the request:", err)
+		return
+	}
+
+	// Add the form data as URL-encoded values to the request
+	q := req.URL.Query()
+	for key, value := range formData {
+		q.Add(key, value)
+	}
+	req.URL.RawQuery = q.Encode()
+
+	// Set the appropriate content type for the form
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+
+	// Perform the POST request
+	resp, err := client.Do(req)
+	if err != nil {
+		fmt.Println("Error sending the POST request:", err)
+		return
+	}
+	defer resp.Body.Close()
+
+	// Check the response
+	if resp.StatusCode == http.StatusOK {
+		fmt.Println("Request successful. You may need to parse and process the response body if applicable.")
+	} else {
+		fmt.Println("Request failed with status code:", resp.Status)
+	}
+*/