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input/gvctrl/request.go: added documentation to request.go

This commit is contained in:
Saxon 2019-10-14 11:05:11 +10:30
parent 5b17613489
commit c726571399
1 changed files with 17 additions and 11 deletions
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28
input/gvctrl/request.go
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@ -35,11 +35,11 @@ import (
"strconv" "strconv"
) )
// Relevant sub directories.
const ( const (
baseURL = "http://192.168.1.50" loginSubDir = "/ssi.cgi/login.htm" // Used to get log in page.
loginPageURL = baseURL + "/ssi.cgi/login.htm" loggedInSubDir = "/LoginPC.cgi" // Used to submit log in.
loggedInURL = baseURL + "/LoginPC.cgi" settingsSubDir = "/VideoSetting.cgi" // Used to submit settings.
settingsURL = baseURL + "/VideoSetting.cgi"
) )
// TODO: make this configurable. // TODO: make this configurable.
@ -48,8 +48,11 @@ const (
pass = "admin" pass = "admin"
) )
// genLogIn gets the log in page and extracts the randomly generated cc values
// from which (as well as username and password) two hashes are generated.
// The generated hex is encoded into a url encoded form and returned as a string.
func genLogIn(c *http.Client, id, host string) (string, error) { func genLogIn(c *http.Client, id, host string) (string, error) {
req, err := http.NewRequest("GET", loginPageURL, nil) req, err := http.NewRequest("GET", "https://"+host+loginSubDir, nil)
if err != nil { if err != nil {
return "", fmt.Errorf("can't create GET request for log in page: %v", err) return "", fmt.Errorf("can't create GET request for log in page: %v", err)
} }
@ -97,8 +100,9 @@ func genLogIn(c *http.Client, id, host string) (string, error) {
return f.Encode(), nil return f.Encode(), nil
} }
// logIn will submit the form b generated by genLogIn.
func logIn(c *http.Client, id, host, b string) error { func logIn(c *http.Client, id, host, b string) error {
req, err := http.NewRequest("POST", loggedInURL, bytes.NewBuffer([]byte(b))) req, err := http.NewRequest("POST", "http://"+host+loggedInSubDir, bytes.NewBuffer([]byte(b)))
if err != nil { if err != nil {
return fmt.Errorf("could not create log in request: %v", err) return fmt.Errorf("could not create log in request: %v", err)
} }
@ -106,12 +110,12 @@ func logIn(c *http.Client, id, host, b string) error {
req.Header.Set("Connection", "keep-alive") req.Header.Set("Connection", "keep-alive")
req.Header.Set("Content-Length", "142") req.Header.Set("Content-Length", "142")
req.Header.Set("Cache-Control", "max-age=0") req.Header.Set("Cache-Control", "max-age=0")
req.Header.Set("Origin", "http://192.168.1.50") req.Header.Set("Origin", "http://"+host)
req.Header.Set("Upgrade-Insecure-Requests", "1") req.Header.Set("Upgrade-Insecure-Requests", "1")
req.Header.Set("User-Agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.90 Safari/537.36") req.Header.Set("User-Agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.90 Safari/537.36")
req.Header.Set("Content-Type", "application/x-www-form-urlencoded") req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3") req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3")
req.Header.Set("Referer", "http://192.168.1.50/ssi.cgi/Login.htm") req.Header.Set("Referer", "http://"+host+"/ssi.cgi/Login.htm")
req.Header.Set("Accept-Encoding", "gzip, deflate") req.Header.Set("Accept-Encoding", "gzip, deflate")
req.Header.Set("Accept-Language", "en-GB,en-US;q=0.9,en;q=0.8") req.Header.Set("Accept-Language", "en-GB,en-US;q=0.9,en;q=0.8")
req.Header.Set("Cookie", "CLIENT_ID="+id+"; CLIENT_ID="+id) req.Header.Set("Cookie", "CLIENT_ID="+id+"; CLIENT_ID="+id)
@ -124,9 +128,11 @@ func logIn(c *http.Client, id, host, b string) error {
return nil return nil
} }
// submitSettings will populate a url encoded form using s and submit the
// settings to the server.
func submitSettings(c *http.Client, id, host string, s settings) error { func submitSettings(c *http.Client, id, host string, s settings) error {
fBytes := []byte(populateForm(s).Encode()) fBytes := []byte(populateForm(s).Encode())
req, err := http.NewRequest("POST", settingsURL, bytes.NewReader(fBytes)) req, err := http.NewRequest("POST", "http://"+host+settingsSubDir, bytes.NewReader(fBytes))
if err != nil { if err != nil {
return fmt.Errorf("could not create settings submit request: %v", err) return fmt.Errorf("could not create settings submit request: %v", err)
} }
@ -134,12 +140,12 @@ func submitSettings(c *http.Client, id, host string, s settings) error {
req.Header.Set("Connection", "keep-alive") req.Header.Set("Connection", "keep-alive")
req.Header.Set("Content-Length", strconv.Itoa(len(fBytes))) req.Header.Set("Content-Length", strconv.Itoa(len(fBytes)))
req.Header.Set("Cache-Control", "max-age=0") req.Header.Set("Cache-Control", "max-age=0")
req.Header.Set("Origin", "http://192.168.1.50") req.Header.Set("Origin", "http://"+host)
req.Header.Set("Upgrade-Insecure-Requests", "1") req.Header.Set("Upgrade-Insecure-Requests", "1")
req.Header.Set("User-Agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.90 Safari/537.36") req.Header.Set("User-Agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.90 Safari/537.36")
req.Header.Set("Content-Type", "application/x-www-form-urlencoded") req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3") req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3")
req.Header.Set("Referer", "http://192.168.1.50/ssi.cgi/VideoSettingSub.htm?cam=2") req.Header.Set("Referer", "http://"+host+"/ssi.cgi/VideoSettingSub.htm?cam=2")
req.Header.Set("Accept-Encoding", "gzip, deflate") req.Header.Set("Accept-Encoding", "gzip, deflate")
req.Header.Set("Accept-Language", "en-GB,en-US;q=0.9,en;q=0.8") req.Header.Set("Accept-Language", "en-GB,en-US;q=0.9,en;q=0.8")
req.Header.Set("Cookie", "CLIENT_ID="+id) req.Header.Set("Cookie", "CLIENT_ID="+id)