1package main
  2
  3import (
  4	"crypto/rand"
  5	"database/sql"
  6	"io"
  7	"io/ioutil"
  8	"log"
  9	"os"
 10	"path"
 11	"path/filepath"
 12	"sort"
 13	"time"
 14)
 15
 16var DB *sql.DB
 17
 18func initializeDB() {
 19	var err error
 20	DB, err = sql.Open("sqlite3", c.DBFile)
 21	if err != nil {
 22		log.Fatal(err)
 23	}
 24	createTablesIfDNE()
 25}
 26
 27func getAnalyticsDB() *sql.DB {
 28	db, err := sql.Open("sqlite3", c.AnalyticsDBFile)
 29	_, err = db.Exec(`CREATE TABLE IF NOT EXISTS log (
 30  id INTEGER PRIMARY KEY NOT NULL,
 31  timestamp TEXT NOT NULL,
 32  protocol TEXT NOT NULL,
 33  request_ip TEXT,
 34  request_user TEXT,
 35  status INTEGER,
 36  destination_host TEXT,
 37  path TEXT,
 38  method TEXT,
 39  referer TEXT
 40);`)
 41	if err != nil {
 42		log.Fatal(err)
 43	}
 44	return db
 45}
 46
 47type File struct { // also folders
 48	Creator     string
 49	Name        string // includes folder
 50	UpdatedTime time.Time
 51	TimeAgo     string
 52	IsText      bool
 53	Children    []File
 54	Host        string
 55}
 56
 57func fileFromPath(fullPath string) File {
 58	info, _ := os.Stat(fullPath)
 59	creatorFolder := getCreator(fullPath)
 60	isText := isTextFile(fullPath)
 61	updatedTime := info.ModTime()
 62	return File{
 63		Name:        getLocalPath(fullPath),
 64		Creator:     path.Base(creatorFolder),
 65		UpdatedTime: updatedTime,
 66		IsText:      isText,
 67		TimeAgo:     timeago(&updatedTime),
 68		Host:        c.Host,
 69	}
 70
 71}
 72
 73type User struct {
 74	Username  string
 75	Email     string
 76	Active    bool
 77	Admin     bool
 78	CreatedAt int // timestamp
 79	Reference string
 80}
 81
 82func getActiveUserNames() ([]string, error) {
 83	rows, err := DB.Query(`SELECT username from user WHERE active is true order by username`)
 84	if err != nil {
 85		return nil, err
 86	}
 87	var users []string
 88	for rows.Next() {
 89		var user string
 90		err = rows.Scan(&user)
 91		if err != nil {
 92			return nil, err
 93		}
 94		users = append(users, user)
 95	}
 96
 97	return users, nil
 98}
 99
100func getUserByName(username string) (*User, error) {
101	var user User
102	row := DB.QueryRow(`SELECT username, email, active, admin, created_at, reference from user WHERE username = ?`, username)
103	err := row.Scan(&user.Username, &user.Email, &user.Active, &user.Admin, &user.CreatedAt, &user.Reference)
104	if err != nil {
105		return nil, err
106	}
107	return &user, nil
108}
109
110func getUsers() ([]User, error) {
111	rows, err := DB.Query(`SELECT username, email, active, admin, created_at, reference from user ORDER BY created_at DESC`)
112	if err != nil {
113		return nil, err
114	}
115	var users []User
116	for rows.Next() {
117		var user User
118		err = rows.Scan(&user.Username, &user.Email, &user.Active, &user.Admin, &user.CreatedAt, &user.Reference)
119		if err != nil {
120			return nil, err
121		}
122		users = append(users, user)
123	}
124	return users, nil
125}
126
127func getIndexFiles(admin bool) ([]*File, error) { // cache this function
128	result := []*File{}
129	err := filepath.Walk(c.FilesDirectory, func(thepath string, info os.FileInfo, err error) error {
130		if err != nil {
131			log.Printf("Failure accessing a path %q: %v\n", thepath, err)
132			return err // think about
133		}
134		if !admin && info.IsDir() && info.Name() == HiddenFolder {
135			return filepath.SkipDir
136		}
137		// make this do what it should
138		if !info.IsDir() {
139			res := fileFromPath(thepath)
140			result = append(result, &res)
141		}
142		return nil
143	})
144	if err != nil {
145		return nil, err
146	}
147	sort.Slice(result, func(i, j int) bool {
148		return result[i].UpdatedTime.After(result[j].UpdatedTime)
149	})
150	if len(result) > 35 {
151		result = result[:35]
152	}
153	return result, nil
154} // todo clean up paths
155
156func getMyFilesRecursive(p string, creator string) ([]File, error) {
157	result := []File{}
158	files, err := ioutil.ReadDir(p)
159	if err != nil {
160		return nil, err
161	}
162	for _, file := range files {
163		fullPath := path.Join(p, file.Name())
164		f := fileFromPath(fullPath)
165		if file.IsDir() {
166			f.Children, err = getMyFilesRecursive(path.Join(p, file.Name()), creator)
167		}
168		result = append(result, f)
169	}
170	return result, nil
171}
172
173func createTablesIfDNE() {
174	_, err := DB.Exec(`CREATE TABLE IF NOT EXISTS user (
175  id INTEGER PRIMARY KEY NOT NULL,
176  username TEXT NOT NULL UNIQUE,
177  email TEXT NOT NULL UNIQUE,
178  password_hash TEXT NOT NULL,
179  reference TEXT NOT NULL default "",
180  active boolean NOT NULL DEFAULT false,
181  admin boolean NOT NULL DEFAULT false,
182  created_at INTEGER DEFAULT (strftime('%s', 'now'))
183);
184
185CREATE TABLE IF NOT EXISTS cookie_key (
186  value TEXT NOT NULL
187);`)
188	if err != nil {
189		log.Fatal(err)
190	}
191}
192
193// Generate a cryptographically secure key for the cookie store
194func generateCookieKeyIfDNE() []byte {
195	rows, err := DB.Query("SELECT value FROM cookie_key LIMIT 1")
196	defer rows.Close()
197	if err != nil {
198		log.Fatal(err)
199	}
200	if rows.Next() {
201		var cookie []byte
202		err := rows.Scan(&cookie)
203		if err != nil {
204			log.Fatal(err)
205		}
206		return cookie
207	} else {
208		k := make([]byte, 32)
209		_, err := io.ReadFull(rand.Reader, k)
210		if err != nil {
211			log.Fatal(err)
212		}
213		_, err = DB.Exec("insert into cookie_key values (?)", k)
214		if err != nil {
215			log.Fatal(err)
216		}
217		return k
218	}
219}