1  Eric Chudow
   2  Lee Gumnic
   3  Project 7 � Web Service
   4  Dec 2005
   5  
   6  Our web service provides custom images.  The client may specify a text message to appear on the image, and receives it as an array of bytes representing a jpeg file.  Additionally, the client may choose to send the image as an email to a specified SEAS address.  The web page allows you to specify message text as well as all parameters for an email.  Additionally it provides a dynamic image file that returns the image to a web browser.  This image URL can be used by users of the web site.  The web service does not use that image for the emails since it shouldn�t be depending on one of its clients.  It instead embeds the jpeg file in the email itself which is where we spent the majority of our time.  
   7  
   8  The service is located at http://harbormist.com/webservice/AddTextToImage/Service.asmx 
   9  We changes all of the default file names but left Service.aspx alone because that seems to be a standard place to look for the WSDL. The source is in the DynamicImageGenerator folder in this zip.
  10  
  11  
  12  The web page is located at 
  13  http://wren.cis.upenn.edu/webclient/AddTextToImage/
  14  
  15  Notes on source:
  16  
  17  �    ImageText
  18  o    AppCode
  19  ?    GlobalInfo.cs
  20  �    Encapsulates some global constants
  21  o    Default.aspx(.cs)
  22  ?    The main interface of the web site
  23  ?    Provides forms to interact with the web service
  24  o    Image.aspx(.cs)
  25  ?    An asp file encapsulating the image
  26  ?    Changes the content type to image/jpeg
  27  ?    Writes the bytes from the web service to the response
  28  ?    Creates a 500 server error if the service fails
  29  �    DynamicImageGenerator
  30  o    AppCode
  31  ?    GlobalInfo.cs
  32  �    Encapsulates some global variables
  33  ?    Service.cs
  34  �    Implements the web service
  35  �    CreateImage
  36  o    Creates an altered image in memory
  37  o    Returns as a byte array
  38  �    Sendmail
  39  o    Takes altered image from createimage and sends it by email
  40  o    Jpeg file is created in the temp directory and then sent
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  43