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1 /*******************************************************************************
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2
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3 copyright: Copyright (c) 2004 Kris Bell. All rights reserved
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4
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5 license: BSD style: $(LICENSE)
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6
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7 version: Initial release: January 2006
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8
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9 author: Kris
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10
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11 *******************************************************************************/
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12
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13 module tango.net.http.HttpGet;
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14
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15 public import tango.net.Uri;
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16
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17 private import tango.io.GrowBuffer;
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18
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19 private import tango.net.http.HttpClient,
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20 tango.net.http.HttpHeaders;
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21
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22 /*******************************************************************************
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23
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24 Supports the basic needs of a client making requests of an HTTP
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25 server. The following is a usage example:
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26 ---
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27 // open a web-page for reading (see HttpPost for writing)
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28 auto page = new HttpGet ("http://www.digitalmars.com/d/intro.html");
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29
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30 // retrieve and flush display content
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31 Cout (cast(char[]) page.read) ();
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32 ---
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33
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34 *******************************************************************************/
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35
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36 class HttpGet : HttpClient
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37 {
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38 private GrowBuffer buffer;
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39
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40 /***********************************************************************
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41
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42 Create a client for the given URL. The argument should be
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43 fully qualified with an "http:" or "https:" scheme, or an
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44 explicit port should be provided.
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45
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46 ***********************************************************************/
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47
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48 this (char[] url, uint pageChunk = 16 * 1024)
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49 {
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50 this (new Uri(url), pageChunk);
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51 }
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52
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53 /***********************************************************************
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54
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55 Create a client with the provided Uri instance. The Uri should
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56 be fully qualified with an "http:" or "https:" scheme, or an
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57 explicit port should be provided.
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58
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59 ***********************************************************************/
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60
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61 this (Uri uri, uint pageChunk = 16 * 1024)
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62 {
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63 super (HttpClient.Get, uri);
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64 buffer = new GrowBuffer (pageChunk, pageChunk);
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65 }
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66
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67 /***********************************************************************
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68
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69 ***********************************************************************/
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70
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71 void[] read ()
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72 {
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73 try {
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74 buffer.clear;
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75 open (buffer);
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76 if (isResponseOK)
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77 buffer.fill (getResponseHeaders.getInt(HttpHeader.ContentLength, uint.max));
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78 } finally {close;}
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79 return buffer.slice;
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80 }
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81 }
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82
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