Implements post query

commands/commands.go

@@ -9,25 +9,30 @@
 package commands
 
 import (
-	"bytes"
 	"database/sql"
 	"strings"
 
 	"fmt"
-	"io/ioutil"
 	"log"
 	"net/http"
 	"net/url"
 
 	"github.com/jollheef/wi/storage"
 
+	"github.com/PuerkitoBio/goquery"
 	"github.com/jaytaylor/html2text"
-	"golang.org/x/net/html"
 	"golang.org/x/net/html/charset"
 )
 
-func parseLink(db *sql.DB, oldPage, value string, lastUrl *url.URL) (htmlPage string, err error) {
-	linkUrl, err := lastUrl.Parse(value)
+func fixLinks(db *sql.DB, doc *goquery.Document, pageUrl *url.URL) (err error) {
+
+	doc.Find("a").Each(func(i int, s *goquery.Selection) {
+		url, exists := s.Attr("href")
+		if !exists {
+			return
+		}
+
+		linkUrl, err := pageUrl.Parse(url)
 		if err != nil {
 			return
 		}
@@ -36,46 +41,56 @@ func parseLink(db *sql.DB, oldPage, value string, lastUrl *url.URL) (htmlPage st
 		if err != nil {
 			linkNo, err = storage.AddLink(db, linkUrl.String())
 			if err != nil {
-			return
+				log.Fatalln("Add link:", err)
 			}
 		}
 
-	htmlPage = oldPage
-
-	for _, s := range []string{value, html.EscapeString(value)} {
-		htmlPage = strings.Replace(htmlPage, "\""+s+"\"",
-			"\""+fmt.Sprintf("%d", linkNo)+"\"", -1)
-	}
+		s.SetAttr("href", fmt.Sprintf("%d", linkNo))
+	})
 
 	return
 }
 
-func parseLinks(db *sql.DB, body []byte, lastUrl *url.URL) (htmlPage string, err error) {
-	htmlPage = string(body)
+func fixForms(db *sql.DB, doc *goquery.Document, pageUrl *url.URL) (err error) {
 
-	z := html.NewTokenizer(bytes.NewReader(body))
-
-	for {
-		tt := z.Next()
-		if tt == html.ErrorToken {
-			break
+	doc.Find("form").Each(func(i int, s *goquery.Selection) {
+		var fields []storage.Field
+		s.Find("input").Map(
+			func(i int, s *goquery.Selection) (str string) {
+				f := storage.Field{}
+				var exists bool
+				f.Name, exists = s.Attr("name")
+				if !exists {
+					return
 				}
+				f.Value, _ = s.Attr("value")
+				hidden, _ := s.Attr("type")
+				if hidden == "hidden" {
+					f.Hidden = true
+				}
+				fields = append(fields, f)
+				return
+			})
 
-		for {
-			key, value, moreAttr := z.TagAttr()
+		action, _ := s.Attr("action")
 
-			if string(key) == "href" {
-				htmlPage, err = parseLink(db, htmlPage, string(value), lastUrl)
+		actionUrl, err := pageUrl.Parse(action)
 		if err != nil {
 			return
 		}
+
+		method, _ := s.Attr("method")
+
+		formNo, err := storage.GetFormID(db, fields, actionUrl.String(), method)
+		if err != nil {
+			formNo, err = storage.AddForm(db, fields, actionUrl.String(), method)
+			if err != nil {
+				log.Fatalln(err)
+			}
 		}
 
-			if !moreAttr {
-				break
-			}
-		}
-	}
+		s.AppendHtml(fmt.Sprintf("(%d %s)", formNo, strings.ToUpper(method)))
+	})
 
 	return
 }
@@ -94,8 +109,12 @@ func Get(db *sql.DB, linkUrl string) {
 		linkUrl = "https://" + linkUrl
 	}
 
-	// TODO Full url encoding
-	req, err := http.NewRequest("GET", strings.Replace(linkUrl, " ", "%20", -1), nil)
+	u, err := url.Parse(linkUrl)
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	req, err := http.NewRequest("GET", u.String(), nil)
 	if err != nil {
 		log.Fatalln(err)
 	}
@@ -120,14 +139,24 @@ func Get(db *sql.DB, linkUrl string) {
 		log.Fatalln("Encoding error:", err)
 	}
 
-	body, err := ioutil.ReadAll(utf8)
+	doc, err := goquery.NewDocumentFromReader(utf8)
 	if err != nil {
-		log.Fatalln("IO error:", err)
+		log.Fatalln("Create document error:", err)
 	}
 
-	htmlPage, err := parseLinks(db, body, lastUrl)
+	err = fixLinks(db, doc, lastUrl)
 	if err != nil {
-		log.Fatalln("Parse links error:", err)
+		log.Fatalln("Fix links error:", err)
+	}
+
+	err = fixForms(db, doc, lastUrl)
+	if err != nil {
+		log.Fatalln("Fix forms error", err)
+	}
+
+	htmlPage, err := doc.Html()
+	if err != nil {
+		log.Fatalln("Convert to html error:", err)
 	}
 
 	text, err := html2text.FromString(htmlPage)
@@ -139,8 +168,72 @@ func Get(db *sql.DB, linkUrl string) {
 	fmt.Println(text)
 }
 
-func Post(db *sql.DB, formID int64, formArgs []string) {
-	fmt.Println("Not implemented")
+func Form(db *sql.DB, formID int64, formArgs []string) {
+	fields, formUrl, post, err := storage.GetForm(db, formID)
+	if err != nil {
+		log.Fatalln("Get form:", err)
+	}
+
+	if len(formArgs) == 0 {
+		if post {
+			fmt.Print("POST ")
+		}
+
+		fmt.Println(formUrl)
+
+		fmt.Print("Values: ")
+		for i, f := range fields {
+			if i != 0 {
+				fmt.Print("\n\t")
+			}
+			fmt.Printf(`%s="%s"`, f.Name, f.Value)
+		}
+		fmt.Println()
+
+		return
+	}
+
+	urlData := url.Values{}
+	for _, f := range fields {
+		urlData.Set(f.Name, f.Value)
+	}
+
+	for _, fa := range formArgs {
+		nameAndValue := strings.Split(fa, " ")
+		if len(nameAndValue) != 2 {
+			continue
+		}
+		name := nameAndValue[0]
+		value := nameAndValue[1]
+		urlData.Set(name, value)
+	}
+
+	client := &http.Client{}
+
+	var lastUrl *url.URL
+
+	client.CheckRedirect = func(r *http.Request, via []*http.Request) (err error) {
+		lastUrl = r.URL
+		return
+	}
+
+	resp, err := client.PostForm(formUrl, urlData)
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	if lastUrl == nil {
+		lastUrl, _ = resp.Location()
+	}
+
+	log.Println(resp.Status)
+
+	var status int64
+	fmt.Sscanf(resp.Status, "%d", &status)
+
+	if status >= 300 && status < 400 {
+		Get(db, lastUrl.String())
+	}
 }
 
 func Link(db *sql.DB, linkID int64, fromHistory bool) {

main.go

@@ -42,9 +42,9 @@ var (
 	get    = kingpin.Command("get", "Get url")
 	getUrl = get.Arg("url", "Url").Required().String()
 
-	post     = kingpin.Command("post", "Fill post form")
-	postID   = post.Arg("id", "Form ID").Required().Int64()
-	postArgs = SearchList(post.Arg("args", "Post form arguments"))
+	form     = kingpin.Command("form", "Fill form")
+	formID   = form.Arg("id", "Form ID").Required().Int64()
+	formArgs = SearchList(form.Arg("args", "Form arguments"))
 
 	link            = kingpin.Command("link", "Get link")
 	linkNo          = link.Arg("no", "Number").Required().Int64()
@@ -68,8 +68,8 @@ func main() {
 	switch kingpin.Parse() {
 	case "get":
 		commands.Get(db, *getUrl)
-	case "post":
-		commands.Post(db, *postID, *postArgs)
+	case "form":
+		commands.Form(db, *formID, *formArgs)
 	case "link":
 		commands.Link(db, *linkNo, *linkFromHistory)
 	case "history":

storage/storage.go

@@ -10,6 +10,9 @@ package storage
 
 import (
 	"database/sql"
+	"errors"
+	"reflect"
+	"strings"
 
 	_ "github.com/mattn/go-sqlite3"
 )
@@ -28,6 +31,147 @@ func OpenDB(path string) (db *sql.DB, err error) {
 
 	_, err = db.Exec("CREATE TABLE IF NOT EXISTS `history` " +
 		"( `id` INTEGER PRIMARY KEY AUTOINCREMENT, `url` TEXT );")
+	if err != nil {
+		return
+	}
+
+	_, err = db.Exec("CREATE TABLE IF NOT EXISTS `fields` " +
+		"( `id`      INTEGER PRIMARY KEY AUTOINCREMENT, " +
+		"  `form_id` INTEGER, " +
+		"  `hidden`  BOOLEAN, " +
+		"  `value`   TEXT, " +
+		"  `name`   TEXT );")
+	if err != nil {
+		return
+	}
+
+	_, err = db.Exec("CREATE TABLE IF NOT EXISTS `forms` " +
+		"( `id`   INTEGER PRIMARY KEY AUTOINCREMENT, " +
+		"  `post` BOOLEAN, " +
+		"  `url`  TEXT );")
+
+	return
+}
+
+type Field struct {
+	Hidden bool
+	Value  string
+	Name   string
+}
+
+func getFields(db *sql.DB, formNo int64) (fields []Field, err error) {
+	stmt, err := db.Prepare("SELECT `hidden`, `value`, `name` FROM `fields` WHERE form_id=$1;")
+	if err != nil {
+		return
+	}
+	defer stmt.Close()
+
+	rows, err := stmt.Query(formNo)
+	if err != nil {
+		return
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var f Field
+		err = rows.Scan(&f.Hidden, &f.Value, &f.Name)
+		if err != nil {
+			return
+		}
+
+		fields = append(fields, f)
+	}
+
+	return
+}
+
+func addField(db *sql.DB, name, value string, hidden bool, formNo int64) (err error) {
+	stmt, err := db.Prepare("INSERT INTO `fields` " +
+		"(`form_id`, `name`, `hidden`, `value`) VALUES ($1, $2, $3, $4);")
+	if err != nil {
+		return
+	}
+	defer stmt.Close()
+
+	_, err = stmt.Exec(formNo, name, hidden, value)
+	return
+}
+
+func AddForm(db *sql.DB, fields []Field, url, method string) (formNo int64, err error) {
+	stmt, err := db.Prepare("INSERT INTO `forms` (`url`, `post`) VALUES ($1, $2);")
+	if err != nil {
+		return
+	}
+	defer stmt.Close()
+
+	post := false // GET
+	if strings.ToUpper(method) == "POST" {
+		post = true
+	}
+
+	r, err := stmt.Exec(url, post)
+	if err != nil {
+		return
+	}
+
+	formNo, err = r.LastInsertId()
+	if err != nil {
+		return
+	}
+
+	for _, f := range fields {
+		addField(db, f.Name, f.Value, f.Hidden, formNo)
+	}
+
+	return
+}
+
+func GetFormID(db *sql.DB, fields []Field, url, method string) (formNo int64, err error) {
+	stmt, err := db.Prepare("SELECT `id` FROM `forms` WHERE url=$1 AND post=$2;")
+	if err != nil {
+		return
+	}
+	defer stmt.Close()
+
+	post := false // GET
+	if strings.ToUpper(method) == "POST" {
+		post = true
+	}
+
+	err = stmt.QueryRow(url, post).Scan(&formNo)
+	if err != nil {
+		return
+	}
+
+	dbFields, err := getFields(db, formNo)
+	if err != nil {
+		return
+	}
+
+	if !reflect.DeepEqual(fields, dbFields) {
+		err = errors.New("Fields not match")
+		return
+	}
+
+	return
+}
+
+func GetForm(db *sql.DB, formID int64) (fields []Field, url string, post bool, err error) {
+	stmt, err := db.Prepare("SELECT `post`, `url` FROM `forms` WHERE id=$1;")
+	if err != nil {
+		return
+	}
+	defer stmt.Close()
+
+	err = stmt.QueryRow(formID).Scan(&post, &url)
+	if err != nil {
+		return
+	}
+
+	fields, err = getFields(db, formID)
+	if err != nil {
+		return
+	}
 
 	return
 }