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2 | daniel-mar | 1 | package de.viathinksoft.utils.http; |
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3 | // Needs Apache Client 4.x |
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4 | // http://hc.apache.org/downloads.cgi |
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5 | |||
6 | import java.io.File; |
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7 | import java.io.FileOutputStream; |
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8 | import java.io.IOException; |
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9 | import java.io.InputStream; |
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10 | import java.io.OutputStream; |
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11 | import java.net.URLEncoder; |
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12 | import java.util.List; |
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13 | |||
14 | import org.apache.http.HttpResponse; |
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15 | import org.apache.http.HttpVersion; |
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16 | import org.apache.http.NameValuePair; |
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17 | import org.apache.http.client.ClientProtocolException; |
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18 | import org.apache.http.client.entity.UrlEncodedFormEntity; |
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19 | import org.apache.http.client.methods.HttpGet; |
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20 | import org.apache.http.client.methods.HttpPost; |
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21 | import org.apache.http.cookie.Cookie; |
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22 | import org.apache.http.impl.client.DefaultHttpClient; |
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23 | import org.apache.http.params.BasicHttpParams; |
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24 | import org.apache.http.params.HttpParams; |
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25 | import org.apache.http.params.HttpProtocolParams; |
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26 | import org.apache.http.protocol.HTTP; |
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27 | |||
28 | public class HttpUtils { |
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29 | |||
30 | private DefaultHttpClient httpClient; |
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31 | |||
32 | public HttpUtils() { |
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33 | httpClient = new DefaultHttpClient(); |
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34 | } |
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35 | |||
36 | public HttpUtils(String userAgent) { |
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37 | this(); |
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38 | |||
39 | HttpParams params = new BasicHttpParams(); |
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40 | HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1); |
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41 | HttpProtocolParams.setContentCharset(params, "UTF-8"); |
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42 | HttpProtocolParams.setUserAgent(params, userAgent); |
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43 | HttpProtocolParams.setUseExpectContinue(params, true); |
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44 | |||
45 | httpClient.setParams(params); |
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46 | } |
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47 | |||
48 | public DefaultHttpClient getHttpClient() { |
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49 | return httpClient; |
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50 | } |
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51 | |||
52 | public List<Cookie> getAllCookies() { |
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53 | return httpClient.getCookieStore().getCookies(); |
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54 | } |
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55 | |||
56 | public void clearAllCookies() { |
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57 | httpClient.getCookieStore().clear(); |
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58 | } |
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59 | |||
60 | public MyHttpResponse doGet(String url) throws ClientProtocolException, |
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61 | IOException { |
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62 | HttpGet httpget = new HttpGet(url); |
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63 | HttpResponse response = httpClient.execute(httpget); |
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64 | return new MyHttpResponse(response); |
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65 | } |
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66 | |||
67 | public MyHttpResponse doGet(String url, NameValuePairArray parameters, |
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68 | NameValuePairArray requestHeaders) throws ClientProtocolException, |
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69 | IOException { |
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70 | String myurl = url.concat("?"); |
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71 | |||
72 | for (NameValuePair p : parameters) { |
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73 | myurl = myurl.concat(p.getName()).concat("=").concat( |
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74 | URLEncoder.encode(p.getValue(), "UTF-8")).concat("&"); |
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75 | } |
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76 | |||
77 | HttpGet httpget = new HttpGet(myurl); |
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78 | |||
79 | for (NameValuePair rh : requestHeaders) { |
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80 | httpget.addHeader(rh.getName(), rh.getValue()); |
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81 | } |
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82 | |||
83 | HttpResponse response = httpClient.execute(httpget); |
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84 | return new MyHttpResponse(response); |
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85 | } |
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86 | |||
87 | public MyHttpResponse doGet(String url, NameValuePairArray parameters) |
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88 | throws ClientProtocolException, IOException { |
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89 | return doGet(url, parameters, new NameValuePairArray()); |
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90 | } |
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91 | |||
92 | public MyHttpResponse doSimplePost(String url, NameValuePairArray postData, |
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93 | NameValuePairArray requestHeaders) throws ClientProtocolException, |
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94 | IOException { |
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95 | HttpPost httppost = new HttpPost(url); |
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96 | |||
97 | httppost.setEntity(new UrlEncodedFormEntity(postData, HTTP.UTF_8)); |
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98 | |||
99 | for (NameValuePair rh : requestHeaders) { |
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100 | httppost.addHeader(rh.getName(), rh.getValue()); |
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101 | } |
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102 | |||
103 | HttpResponse response = httpClient.execute(httppost); |
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104 | return new MyHttpResponse(response); |
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105 | } |
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106 | |||
107 | public MyHttpResponse doSimplePost(String url, NameValuePairArray postData) |
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108 | throws ClientProtocolException, IOException { |
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109 | return doSimplePost(url, postData, new NameValuePairArray()); |
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110 | } |
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111 | |||
112 | public MyHttpResponse doMultiPartPost(String url, |
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113 | MultipartPostData postData, NameValuePairArray requestHeaders) |
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114 | throws ClientProtocolException, IOException { |
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115 | DefaultHttpClient httpclient = new DefaultHttpClient(); |
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116 | |||
117 | HttpPost httppost = new HttpPost(url); |
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118 | httppost.setEntity(postData); |
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119 | |||
120 | for (NameValuePair rh : requestHeaders) { |
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121 | httppost.addHeader(rh.getName(), rh.getValue()); |
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122 | } |
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123 | |||
124 | HttpResponse response = httpclient.execute(httppost); |
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125 | return new MyHttpResponse(response); |
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126 | } |
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127 | |||
128 | public MyHttpResponse doMultiPartPost(String url, MultipartPostData postData) |
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129 | throws ClientProtocolException, IOException { |
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130 | return doMultiPartPost(url, postData, new NameValuePairArray()); |
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131 | } |
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132 | |||
133 | protected void writeInputStreamToFile(InputStream inputStream, File outFile) |
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134 | throws IOException { |
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135 | OutputStream out = new FileOutputStream(outFile); |
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136 | byte buf[] = new byte[1024]; |
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137 | int len; |
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138 | while ((len = inputStream.read(buf)) > 0) { |
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139 | out.write(buf, 0, len); |
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140 | } |
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141 | out.close(); |
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142 | inputStream.close(); |
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143 | } |
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144 | |||
145 | protected void writeResponseToFile(HttpResponse response, File outputFile) |
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146 | throws IllegalStateException, IOException { |
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147 | File tmp = new File("~~download.tmp"); |
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148 | writeInputStreamToFile(response.getEntity().getContent(), tmp); |
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149 | if (outputFile.exists()) { |
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150 | if (!outputFile.delete()) { |
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151 | tmp.delete(); |
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152 | throw new IOException("Destination file already exists and could not be deleted."); |
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153 | } |
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154 | } |
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155 | |||
156 | if (!tmp.renameTo(outputFile)) { |
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157 | tmp.delete(); |
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158 | throw new IOException("File could not moved to destination! Does the destination directory with accurate permissions exist?"); |
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159 | } |
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160 | } |
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161 | |||
162 | public void downloadFile(String url, File outputFile, |
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163 | NameValuePairArray requestHeaders) throws ClientProtocolException, |
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164 | IOException { |
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165 | HttpGet httpget = new HttpGet(url); |
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166 | |||
167 | for (NameValuePair rh : requestHeaders) { |
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168 | httpget.addHeader(rh.getName(), rh.getValue()); |
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169 | } |
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170 | |||
171 | HttpResponse response = httpClient.execute(httpget); |
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172 | writeResponseToFile(response, outputFile); |
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173 | } |
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174 | |||
175 | public void downloadFile(String url, File outputFile) |
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176 | throws ClientProtocolException, IOException { |
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177 | downloadFile(url, outputFile, new NameValuePairArray()); |
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178 | } |
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179 | } |