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ACTIVE SERVER PAGE > csImageFile ÄÄÆ÷³ÍÆ® - ÀÚµ¿È­ ¹æÁö ĸÂ÷(capcha) À̹ÌÁö ¸¸µé±â

µî·ÏÀÏ : 2021-08-11 15:06 Á¶È¸¼ö : 51,867

»ç¿ëÀÚ°¡ ½ÇÁ¦ »ç¶÷ÀÎÁö ÄÄÇ»ÅÍ ÇÁ·Î±×·¥ÀÎÁö ÆǺ°ÇØÁÖ´Â ±â¼úÀ̠ĸÂ÷(CAPTCHA) ÀÔ´Ï´Ù. 
csImageFile ÄÄÆ÷³ÍÆ®¸¦ ÀÌ¿ëÇؼ­ À̹ÌÁö ĸÂ÷¸¦ ¸¸µå´Â ¹æ¹ýÀ» ±â¼ú Çϵµ·Ï ÇÏ°Ú½À´Ï´Ù.

http://ankyu.entersoft.kr/lecture/asp/csimagefile/csimage_captcha.asp

¸ÕÀú À§ÀÇ ¿¹Á¦¿¡¼­ »ç¿ëµÇ´Â ¹æ¹ýÀ» È®ÀÎ ÇÒ ¼ö ÀÖ½À´Ï´Ù.
 

1. ·£´ý °ªÀ» ¸¸µé¾î session º¯¼ö¿¡ °ª¿¡ ³Ö½À´Ï´Ù.
2. À§ session º¯¼ö¸¦ ÀÌ¿ëÇÑ À̹ÌÁö¸¦ ¸¸µì´Ï´Ù.
3. session º¯¼ö¿Í ÀÔ·ÂµÈ ÅؽºÆ® °ªÀ» ºñ±³ÇÕ´Ï´Ù.

1. ·£´ý °ªÀ» ¸¸µé¾î session º¯¼ö¿¡ °ª¿¡ ³Ö½À´Ï´Ù.
 
  Randomize
  Session.Value("Code") = Chr(Int(Rnd * 26) + 65) & Chr(Int(Rnd * 26) + 65) & Chr(Int(Rnd * 26) + 65) & Chr(Int(Rnd * 26) + 65)   

2. À§ session º¯¼ö¸¦ ÀÌ¿ëÇÑ À̹ÌÁö¸¦ ¸¸µì´Ï´Ù.
 

  Response.Expires = 0
  Response.Buffer = true
  Response.Clear

  Set Image = Server.CreateObject("csImageFile.Manage")

  'Draw the image
  Image.NewImage 100, 50, "FFFFFF"
  Image.BrushStyle = 4
  Image.BrushColor = "000000"
  Image.FloodFill 0, 0

  'Draw the text
  Image.TextFont = "Courier New"
  Image.TextOpaque = false
  Image.TextSize = 36
  Image.TextBold = true
  Image.Text 5, 5, Session("Code")

  'Export as a GIF
  Response.ContentType = "Image/gif"
  Response.BinaryWrite Image.GIFData


3. session º¯¼ö¿Í ÀÔ·ÂµÈ ÅؽºÆ® °ªÀ» ºñ±³ÇÕ´Ï´Ù.
 
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