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| author | Alexander Pickering <alexandermpickering@gmail.com> | 2016-05-10 16:25:11 -0400 |
|---|---|---|
| committer | Alexander Pickering <alexandermpickering@gmail.com> | 2016-05-10 16:25:11 -0400 |
| commit | dd95bc4a049fc1157e1b33343de217761d71d7ab (patch) | |
| tree | 180c1f08ec9692c2712122dc45bc27e4a160110d | |
| parent | 8d2beddd1ce83d465eb7601bc02cb86506425606 (diff) | |
| download | webpage-dd95bc4a049fc1157e1b33343de217761d71d7ab.tar.gz webpage-dd95bc4a049fc1157e1b33343de217761d71d7ab.tar.bz2 webpage-dd95bc4a049fc1157e1b33343de217761d71d7ab.zip | |
moved captcha over to a hash-generated system
| -rw-r--r-- | ws2a/gencaptcha.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/ws2a/gencaptcha.c b/ws2a/gencaptcha.c index 5d1bdb6..8713a1a 100644 --- a/ws2a/gencaptcha.c +++ b/ws2a/gencaptcha.c @@ -48,6 +48,17 @@ void createRandomWords(char* buf){ buf[pos] = '\0'; } + +unsigned long hash(unsigned char *str){ + unsigned long hash = 5381; + int c; + + while (c = *str++) + hash = ((hash << 5) + hash) + c; /* hash * 33 + c */ + + return hash; +} + int main(){ srand(time(NULL)); @@ -58,16 +69,19 @@ int main(){ int barraldis2 = rand()%10; int arcdis = (rand()%99)+1; char command[1024]; - sprintf(command,"convert -background white -fill black -pointsize 48 label:\"%s\" \"../ws2a/captchas/%s.png\"",randwords,randwords); + unsigned long rhash = hash(randwords); + sprintf(command,"convert -background white -fill black -pointsize 48 label:\"%s\" \"../ws2a/captchas/%lu.png\"",randwords,rhash); system(command); - sprintf(command,"convert \"../ws2a/captchas/%s.png\" -distort Barrel \"0.0%d 0.0 0.0%d\" \"../ws2a/captchas/%s.png\"",randwords,barraldis1,barraldis2,randwords); + sprintf(command,"convert \"../ws2a/captchas/%lu.png\" -distort Barrel \"0.0%d 0.0 0.0%d\" \"../ws2a/captchas/%lu.png\"",rhash,barraldis1,barraldis2,rhash); system(command); - sprintf(command,"convert \"../ws2a/captchas/%s.png\" -virtual-pixel White -distort Arc %d \"../ws2a/captchas/%s.png\"",randwords,arcdis,randwords); + sprintf(command,"convert \"../ws2a/captchas/%lu.png\" -virtual-pixel White -distort Arc %d \"../ws2a/captchas/%lu.png\"",rhash,arcdis,rhash); system(command); + printf("%lu",rhash); + /* FILE* imgfile; char filepath[100]; - sprintf(filepath,"../ws2a/captchas/%s.png",randwords); + sprintf(filepath,"../ws2a/captchas/%lu.png",hash(randwords)); //printf("Filepath:%s",filepath); imgfile = fopen(filepath,"rb"); if(imgfile == NULL){ |