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annotate sqlickrypt.c @ 129:46822bd329da

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Make the options page functional. The options page now uses the /uinfo interface to change e-mail and password values.
author John "Elwin" Edwards <elwin@sdf.org>
date Tue, 28 Aug 2012 17:38:25 -0700
parents 0a3ff1267c24
children f1676e81c80a
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include <ctype.h>
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5 #include <sqlite3.h>
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6 #include <unistd.h>
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7 #include <crypt.h>
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8
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9 #define DATABASE "/dgldir/dgamelaunch.db"
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10 #define IBUFSIZE 200
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12 /* General idea for return status:
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13 * 0: success
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14 * 1: password check failed
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15 * 2: username not found
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16 * 3: database error
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17 * 4: invalid input
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18 */
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20 /* Opens the database and, less obviously, initializes a statement. */
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21 int opendb(sqlite3 **dbp, sqlite3_stmt **stmtp, char *query) {
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22 int status;
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23 status = sqlite3_open(DATABASE, dbp);
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24 if (status) {
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25 sqlite3_close(*dbp);
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26 exit(3);
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27 }
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28 sqlite3_prepare_v2(*dbp, query, -1, stmtp, NULL);
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29 if (*stmtp == NULL) {
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30 sqlite3_close(*dbp);
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31 exit(3);
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32 }
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33 return 0;
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34 }
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36 void cleanup(sqlite3 *db, sqlite3_stmt *stmt, int status) {
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37 if (stmt)
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38 sqlite3_finalize(stmt);
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39 sqlite3_close(db);
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40 if (status)
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41 exit(status);
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42 return;
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43 }
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44
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45 int check(char *uname, char *pw) {
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46 char *pwhash, *comphash;
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47 char *query = "SELECT password FROM dglusers WHERE username=?;";
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48 int status;
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49 sqlite3 *db;
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50 sqlite3_stmt *qstmt;
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51
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52 opendb(&db, &qstmt, query);
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53 status = sqlite3_bind_text(qstmt, 1, uname, -1, SQLITE_TRANSIENT);
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54 if (status)
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55 cleanup(db, qstmt, 3);
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56 status = sqlite3_step(qstmt);
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57 if (status != SQLITE_ROW) {
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58 sqlite3_finalize(qstmt);
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59 sqlite3_close(db);
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60 if (status == SQLITE_DONE)
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61 return 2; /* User not found */
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62 return 3;
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63 }
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64 pwhash = strdup((char *) sqlite3_column_text(qstmt, 0));
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65 cleanup(db, qstmt, 0);
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67 /* Check the password */
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68 comphash = crypt(pw, pwhash);
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69 if (!strcmp(pwhash, comphash))
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70 status = 0;
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71 else
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72 status = 1;
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73 free(pwhash);
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74 return status;
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75 }
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77 int insertuser(char *uname, char *pw, char *email) {
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78 char *checkquery = "SELECT * FROM dglusers WHERE username = ?;";
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79 char *addquery = "INSERT INTO dglusers (username, password, email) VALUES (?, ?, ?);";
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