Log query

This program takes user input to query https://ct.googleapis.com/pilot/ct/v1/ for log information. This was created to practice golang and better understand the logging process, not intended for direct use in our final monitor.

log-query/go.mod

@@ -0,0 +1,3 @@
+module temp/query
+
+go 1.17

log-query/query.go

@@ -0,0 +1,115 @@
+// Query the google API for log information.
+// Created by Marcus Barone.
+
+// Note: this was only made to practice golang
+// and to better understand the logging process
+
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+	"strconv"
+    "io/ioutil"
+    "log"
+    "net/http"
+)
+
+func main() {
+
+	fmt.Println("Query ct.googleapis.com/pilot/ct/v1 for logs.")
+	fmt.Println("To get the signed tree head, type 'sth'")
+	fmt.Println("To get entries, type 'entries'")
+	fmt.Println("To quit, use ctrl+c or type 'quit'")
+
+	input := bufio.NewScanner(os.Stdin)
+
+
+	for input.Scan() {
+
+		var text string
+		text = strings.ToLower(input.Text())
+
+		if text == "sth" {
+
+			resp, err := http.Get("https://ct.googleapis.com/pilot/ct/v1/get-sth")
+
+			if err != nil {
+				log.Fatal(err)
+			}
+
+			defer resp.Body.Close()
+
+			body, err := ioutil.ReadAll(resp.Body)
+
+			if err != nil {
+				log.Fatal(err)
+			}
+
+			fmt.Println(string(body))
+
+		} else if text == "entries" {
+
+			fmt.Println("Enter start:")
+			input.Scan()
+			var start int
+
+			_, start_err := fmt.Sscan(input.Text(), &start)
+
+			if start_err != nil { 
+				fmt.Println(start_err)
+				goto loop
+			}
+
+			fmt.Println("Enter end:")
+			input.Scan()
+			var end int
+
+			_, end_err := fmt.Sscan(input.Text(), &end)
+
+			if end_err != nil { 
+				fmt.Println(end_err)
+				goto loop
+			}
+
+			if start > end {
+				fmt.Println("Start must be smaller than end.")
+				goto loop
+			}
+
+			resp, err := http.Get("https://ct.googleapis.com/pilot/ct/v1/get-entries?start=" + strconv.Itoa(start) + "&end=" + strconv.Itoa(end))
+
+			if err != nil {
+				log.Fatal(err)
+			}
+
+			defer resp.Body.Close()
+
+			body, err := ioutil.ReadAll(resp.Body)
+
+			if err != nil {
+				log.Fatal(err)
+			}
+
+			fmt.Println(string(body))
+
+		} else if text == "quit" {
+
+			break
+
+		} else {
+
+			fmt.Println("Invalid input");
+
+		}
+loop:
+		fmt.Println("\nTo get the signed tree head, type 'sth'")
+		fmt.Println("To get entries, type 'entries'")
+		fmt.Println("To quit, use ctrl+c or type 'quit'")
+
+	}
+
+
+}