[SOLVED] Convert C# base64 string back to an image. - Page 2

FreakaZoid2 · #11 08-07-2019, 03:18 PM

the 0x47.... data is stored in a database as varbinary.
is that what is making the string behave like a blob and not a real string of data?
if so how would I go about turning that string back into binary data to load up into a string?

FreakaZoid2 · #12 08-07-2019, 06:54 PM

varbinabry always shows 0x47....
but the underlying string of data is actually different.
R0lGODlhSwFnAPcAAAAAAAAAMwAAZgAAmQ.....(base64)

lots of confusion on this issue.
basically we have 2 different development teams (C# which accesses the data directly, cobol which we have to get from a .NET interface that sends back data in an quasi xml format) I asked for the data that was being sent to the cobol program (i don't have it all setup to work directly) so i asked the C# dev to send me a sample of the raw data that they get. they sent the 0x47... string but that is not the real data that is in the varbinary.
i will now go thru all the setup to get the credit card payment processor all setup and working so i can see the real data being sent to it. hopefully it won't be the 0x47 but the actual base64 string.

Norrit · #13 08-08-2019, 08:31 AM

If it's possible to post a complete string of what you're receiving an try to translate it would be easier, then we could do some tests aswell.
Do they have an anonymous/test file that they can output?

FreakaZoid2 · #14 08-08-2019, 02:27 PM

varbinary field.

Quote:

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 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAACwAAAAASwFnAAAI/wCvCRxIsKDBgwgTKlzIsKHDhxAjSpxIsaLFixgzatzIsaPHjyB DihxJsqTJkyhTqlzJsqXLlzBjypxJs6bNmzhz6twpEwDPn0CDC qXoc6jRo0iBAiiatKnTpy2ZQp1KtSrHpVazat36ECvXr2C5+pQ aNiRZgWfLqq04dq3ZtGndym1YNC5MuzW9GsRbcqneuXnR4uTb8 1pcwiKl+kUMuO9Axin/5my713BUhJAbm318U/Lgw5ZX4lWsGSVpm547g85McLHr1AUJM2Vdmm1s1KF3wqaM9rVv 2F3pcq49kixtkrwn527d2+9JxLOJJ64c+Hjk365VQo4u3SNc3N ZNLt/GLDgyxLpUw3/8Xn0icLave5NfLj4i+qfqvc+nmXzheInY/XcQaOWZZl+B3WVEIH/GBeiec7YNOJyBB9KXIFEJ5adggO/Z16FDu01Yn3sWXghghqIJ+JiGyC3I4nnwmWjRaKZ1+OFd7CHoG IYvEkdjXj2C1B+CQQoXo4wnKlSkgjwNudyS/s0I5Vx8TTmjbjoSad6VSMIYZWBcbmahcRRK2WVwX87kJIiWQbg Rd8zFOeJFVpYFXXskGubVjWxmeVadt505p5J4HqjXbBqeJqeIx Qm6I0OAnkjbkIpiyGiO/8g5mqmRhZVI6JiB5nmphIMmGCmjKHrnZp+Z3UddlmiO+uqmVSU qJqr7YaTidot+6imZSS66IFGMnXqdelYeGiudqULa634/wupsqL8e2Wd6K4oqpKvTMutrs9Jmi6uIfOIK56xdTWoVsF5uti apYX4Lb7j0ySZYq9CCC2m51ELF7rL+rSocv/n9GO2zfk777rxxHqxkwU39hymn+46Fr8D6VthcXef2C+ufAy/sMXMO78VvxkEpllqrxaLHWse5BqvyXxP3WjNm3KYpYcl6nqzzU GTejDOILns4LsLXspsduoGunC69SEeto8/XAl2Z0ANCp7KhR0P9KcgFSiabXf/bqYgy07eZ3ZGxa5MKNl13tvbyk2RbmiPP7UaZc8wAYiykUXejP XS34rIa27DBBX42wKnySuzet6Y8b4MD72vysn++fZ6LizMOb7E P/tuoUBPPXDmhWKMLV6Wel1e3rpzGvTnfkTfJN6Jxj3YY6CPnNun riEf4rb3p4r1eqdqOzHHuKL5O+Lh7wgg8w/FSb/zlz0+XaYjZh4vVhzBzRrbsvbdJNL3cM4ny7uc/7PWbxW0td/feixz2fKvRX3/ArB9OffVRoxzcMgQh+8Gvdtn6nv7G5ymbvYpAVZLX4Wjmt4Opz VuCC1vLCJi152gvV9erG/j61T/X/SyDuIsgAf3OppHMVQxuq3sP25KVt/JJK3wI65gITyi44wTvLfJpoWcu+BIa1tBrnJPgvTLYwK4VTmq0 Y9sT6eQg5Ryvb1OMotR4pjse3i50QdTUFfXDI8aJDoq0E5/zBujEgInxg1fBIMWm1rnFlbCJ+JPiGzUWRw/mEHvBUt3/LLdHK/axRjfcGAA/xsRCImVJehQfB9XXQxs68pGHFA3ymnjHSyalR5FkieYGF0pPIl B4YCkgr0ppyr/BTi4+o1orB0NJTclylmBa5JkMiEudQKyQkOuIpeQsBcw2CpOWx Nyj/I5JuuQp05LMzGXrxDjKaPryiMWEpjXVVDVPpm6bDHJfL6sJTkM q8pjkLOdnWDjORqrznajpJDznCR5W0vOe2MSnPvfJz376858AD ahAB0rQghr0oAhNqEIXytCGOvShEI2oRCdK0Ypa9KIYzahGN8r Rjnr0oyAN6ZkCAgA7

FreakaZoid2 · #15 08-08-2019, 02:32 PM

in the background of all this, with 99% certainty, the signature comes to us as Base64 (presumed to be a bitmap) then the .NET app (buffer dll for giving me access to .NET components from COBOL) they issue the
convert.base64string and that is what I am supposed to be getting.

FreakaZoid2 · #16 08-08-2019, 02:38 PM

bitmap -> base64 -> string

FreakaZoid2 · #17 08-13-2019, 07:04 PM

using...

Code:

var
  astr: string;
  bytes : TBytes;
begin
  bytes := TNetEncoding.Base64.DecodeStringToBytes(mmo2.Lines.Text);
  astr := TEncoding.ASCII.GetString(bytes);

Then saving the astr to a file (filestream) I can then open the file as a graphic (GIF for sure) not sure how to load that GIF string into a graphic image and save it as a bitmap file. (Yet...)

FreakaZoid2 · #18 08-13-2019, 07:45 PM

but I can't load it into an image not even a WICImage without getting an error. (different signature than the original one posted) Do I need to remove the beginning bytes or something. Not a graphics guru sorry....

Code:

'GIF89aK'#1'g'#0'w'#0#0#0#0#0#0#0'3'#0#0'f'#0#0#$19#0#0'L'#0#0#$7F#0'3'#0#0'33'#0'3f'#0'3'#$19#0'3L'#0'3'#$7F#0'f'#0#0'f3'#0'ff'#0'f'#$19#0'fL'#0'f'#$7F#0#$19#0#0#$19'3'#0#$19'f'#0#$19#$19#0#$19'L'#0#$19#$7F#0'L'#0#0'L3'#0'Lf'#0'L'#$19#0'LL'#0'L'#$7F#0#$7F#0#0#$7F'3'#0#$7F'f'#0#$7F#$19#0#$7F'L'#0#$7F#$7F'3'#0#0'3'#0'33'#0'f3'#0#$19'3'#0'L3'#0#$7F'33'#0'33333f33'#$19'33L33'#$7F'3f'#0'3f33ff3f'#$19'3fL3f'#$7F'3'#$19#0'3'#$19'33'#$19'f3'#$19#$19'3'#$19'L3'#$19#$7F'3L'#0'3L33Lf3L'#$19'3LL3L'#$7F'3'#$7F#0'3'#$7F'33'#$7F'f3'#$7F#$19'3'#$7F'L3'#$7F#$7F'f'#0#0'f'#0'3f'#0'ff'#0#$19'f'#0'Lf'#0#$7F'f3'#0'f33f3ff3'#$19'f3Lf3'#$7F'ff'#0'ff3fffff'#$19'ffLff'#$7F'f'#$19#0'f'#$19'3f'#$19'ff'#$19#$19'f'#$19'Lf'#$19#$7F'fL'#0'fL3fLffL'#$19'fLLfL'#$7F'f'#$7F#0'f'#$7F'3f'#$7F'ff'#$7F#$19'f'#$7F'Lf'#$7F#$7F#$19#0#0#$19#0'3'#$19#0'f'#$19#0#$19#$19#0'L'#$19#0#$7F#$19'3'#0#$19'33'#$19'3f'#$19'3'#$19#$19'3L'#$19'3'#$7F#$19'f'#0#$19'f3'#$19'ff'#$19'f'#$19#$19'fL'#$19'f'#$7F#$19#$19#0#$19#$19'3'#$19#$19'f'#$19#$19#$19#$19#$19'L'#$19#$19#$7F#$19'L'#0#$19'L3'#$19'Lf'#$19'L'#$19#$19'LL'#$19'L'#$7F#$19#$7F#0#$19#$7F'3'#$19#$7F'f'#$19#$7F#$19#$19#$7F'L'#$19#$7F#$7F'L'#0#0'L'#0'3L'#0'fL'#0#$19'L'#0'LL'#0#$7F'L3'#0'L33L3fL3'#$19'L3LL3'#$7F'Lf'#0'Lf3LffLf'#$19'LfLLf'#$7F'L'#$19#0'L'#$19'3L'#$19'fL'#$19#$19'L'#$19'LL'#$19#$7F'LL'#0'LL3LLfLL'#$19'LLLLL'#$7F'L'#$7F#0'L'#$7F'3L'#$7F'fL'#$7F#$19'L'#$7F'LL'#$7F#$7F#$7F#0#0#$7F#0'3'#$7F#0'f'#$7F#0#$19#$7F#0'L'#$7F#0#$7F#$7F'3'#0#$7F'33'#$7F'3f'#$7F'3'#$19#$7F'3L'#$7F'3'#$7F#$7F'f'#0#$7F'f3'#$7F'ff'#$7F'f'#$19#$7F'fL'#$7F'f'#$7F#$7F#$19#0#$7F#$19'3'#$7F#$19'f'#$7F#$19#$19#$7F#$19'L'#$7F#$19#$7F#$7F'L'#0#$7F'L3'#$7F'Lf'#$7F'L'#$19#$7F'LL'#$7F'L'#$7F#$7F#$7F#0#$7F#$7F'3'#$7F#$7F'f'#$7F#$7F#$19#$7F#$7F'L'#$7F#$7F#$7F'@@@'#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0#0','#0#0#0#0'K'#1'g'#0#0#8#$7F#0'/'#9#$1C'H0 A'#3#8#$13'*\H0!C'#7#$10'#J'#$1C'H1"E'#$B#$18'3j\H1#G'#$F' C'#$A#$1C'I2$I'#$13'(S*\I2%K'#$17'0cJ'#$1C'I3&M'#$1B'8sj\)'#$13#0'O'#$1F'@'#3#$A'%hs(Q#H'#1#2'('#$1A'4)S''-'#$19'B'#$1D'J5*G%V3j]z'#$10'+W/`9z'#$14#$1A'6$Y'#1'gK*-8v-Y4i]JmX4.L;5='#$1A'D[r)^9yQbd[sZ\B"%zE'#$C'8o@F)'#$7F'fl;WpT'#4#$10#$1B#$1B'}|Sr`C'#$16'WbU,'#$19'%i'#$1B#$1E';'#3'NLp1kT'#5#9'3e]'#$1A'mlT!wB&'#$C'v5oX]ir.='#$12',m'#$12'<''gn][oID3'#9'''.'#$1C'xxd_.UB'#$E'.]#\\VM._F,82D:TC'#$7F'|^}"p6/{'#$13'_.>"z''j=O'''#$19'|ax'#9'X}w'#$10'he'#$19'f_'#1']eD '#$7F'F'#5'h'#$1E's6'#$D'8'#$1C#1#7'R'#$17' Q'#9'e''`'#0'oYW!C;MX'#$1F'{'#$16'^'#8'`'#6'"'#9'x'#$18#6'H-Hbyp'#$19'hQh&uxa]l!h'#$18#6'/'#$12'Gc^='#2'T'#$1F#2'A'#$A#$17'#'#$C'''*T$'#2'<'#$D'9\'#$12'~M'#8'e\|M9#n:'#$12'i^'#$15'HB'#$18'e`\nf!q'#$14'JYep_Nd$'#8#$16'A8'#$11'wLE9bEV'#$16#5']{$'#$1A'fU'#$D'lfyV'#$1D'7'#$1D'9'''#$12'x'#$1E'(Wl'#$1A#$1E'&'''#8'E'#9':#C'#0#$1E'H['#$10#$A'bHh'#$E#$7F'H9'#$1A')'#$11#5#$15'Hh'#$18#1'fy)'#4#3'&'#$18')#(zgf'#$1F#$19']G]'#$16'h'#$E'zj&U%*&*{a$bv'#$B'~j)'#$19'I.: Q'#$C#$1D'z'#$1D'zV'#$1E#$1A'+'#$1D')BZk~?Bjl(?'#$1E'Ygz+'#$A'*$+S2kk3Rf'#$B'+'#8'|b'#$A'g,]Mj'#$15'0^n6&)a~'#$B'o8tI&X+P'#2#$B'i9TBEn2~-*'#$1C'?y}'#$18'm3~N{n}'#$1E#$B#$B'3'#$E'o1'#$F'~[(P'#$13'O\9!X#'#$B'W%'#$1E#$17'W7.'#$1C'F=9_'#$11'7I7"q'#$F'v'#$18'h#g6ik'#8'Gx-=ib=^)Z'#$E'Lqn(>Nx8{B'#8'#Z+'#7'CIMIr'#$16'`Zd'#$19#$C#8'K'#$1D'@,'#$10#$10'k'#8'%d,'#5'L6'#$A#$13#$16'D\#|'#$E'I:d)S'#$12'LLekD8Jhzr'#8'E'#4'&5UT5O&n'#$1B#$C'r_/+'#9'NC*r'#$18'd,ggX8NF*s'#$1D'(i$wIO~zs'#$1F#0#$D'(@'#7'JP'#2#$1A't '#8'M(B'#$17'JP'#6':t!'#$10#$D'(D''JQ'#$A'Zt"'#$18'M(F7JQ'#$E'zt# '#$D'i'#$19#2#2#0';'

FreakaZoid2 · #19 08-14-2019, 04:12 PM

if I save the string to a file, then load that up into a twicimage it works. but it will not let me load the string into the wicimage.
I compared the string value to the file and they are nothing alike. apparently saving it to a file changes the string into a valid image. any ideas of what I need to do the string in order to load it into the image?

FreakaZoid2 · #20 08-14-2019, 04:33 PM

I really do appreciate as it keeps me plugin along....
Here was the solution.

Code:

procedure TForm1.btn1Click(Sender: TObject);
var
  wic : TWICImage;
  _bs : TBytesStream;
begin
  wic := TWICImage.Create;
  _bs := TBytesStream.Create(TNetEncoding.Base64.DecodeStringToBytes(mmo2.Lines.Text));
  _bs.Position := 0;
  wic.LoadFromStream(_bs);
…..

Again thank you all so much for the guidance and help.

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