Diffstat (limited to 'noncore/net/ubrowser/httpcomm.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r-- | noncore/net/ubrowser/httpcomm.cpp | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/noncore/net/ubrowser/httpcomm.cpp b/noncore/net/ubrowser/httpcomm.cpp new file mode 100644 index 0000000..51068db --- a/dev/null +++ b/noncore/net/ubrowser/httpcomm.cpp | |||
@@ -0,0 +1,256 @@ | |||
1 | /* | ||
2 | Opie-uBrowser. a very small web browser, using on QTextBrowser for html display/parsing | ||
3 | Copyright (C) 2002 Thomas Stephens | ||
4 | |||
5 | This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public | ||
6 | License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later | ||
7 | version. | ||
8 | |||
9 | This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the | ||
10 | implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General | ||
11 | Public License for more details. | ||
12 | |||
13 | You should have received a copy of the GNU General Public License along with this program; if not, write to the Free | ||
14 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
15 | */ | ||
16 | |||
17 | #include "httpcomm.h" | ||
18 | |||
19 | HttpComm::HttpComm(QSocket *newSocket, QTextBrowser *newBrowser):QObject() | ||
20 | { | ||
21 | socket = newSocket; | ||
22 | |||
23 | connect(socket, SIGNAL(hostFound()), this, SLOT(hostFound()) ); | ||
24 | connect(socket, SIGNAL(connected()), this, SLOT(connected()) ); | ||
25 | connect(socket, SIGNAL(readyRead()), this, SLOT(incoming()) ); | ||
26 | connect(socket, SIGNAL(connectionClosed()), this, SLOT(connectionClosed()) ); | ||
27 | |||
28 | headerRead=false; | ||
29 | length = 0; | ||
30 | bRead = 0; | ||
31 | chunked=false; | ||
32 | lengthset=false; | ||
33 | |||
34 | browser=newBrowser; | ||
35 | } | ||
36 | |||
37 | void HttpComm::setUp(QString *newName) | ||
38 | { | ||
39 | name = newName; | ||
40 | } | ||
41 | |||
42 | void HttpComm::setStuff(QString newHost, QString newPortS, QString newFile, QTextDrag *newText) | ||
43 | { | ||
44 | host = newHost; | ||
45 | portS = newPortS; | ||
46 | file = newFile; | ||
47 | text = newText; | ||
48 | } | ||
49 | |||
50 | void HttpComm::hostFound() | ||
51 | { | ||
52 | printf("HttpComm::hostFound: host found\n"); | ||
53 | } | ||
54 | |||
55 | void HttpComm::connected() | ||
56 | { | ||
57 | QString request("GET " + file + " HTTP/1.1\r\nHost: " + host + ':' + portS + "\r\nConnection: close\r\n\r\n"); | ||
58 | //QString request("GET " + file + " HTTP/1.0\r\n\r\n"); | ||
59 | printf("HttpComm::data: bytes written: %d\n", socket->writeBlock(request.latin1(), request.length()) ); | ||
60 | printf("HttpComm::data: request sent:\n%s", request.latin1()); | ||
61 | |||
62 | headerRead=false; | ||
63 | bRead=0; | ||
64 | length = 0; | ||
65 | header=""; | ||
66 | body=""; | ||
67 | chunked=false; | ||
68 | lengthset=false; | ||
69 | } | ||
70 | |||
71 | void HttpComm::incoming() | ||
72 | { | ||
73 | int ba=socket->bytesAvailable(), i=0, j=0, semi=0; | ||
74 | char *tempString = new char [ba]; | ||
75 | bool nextChunk=false; | ||
76 | bool done=false; | ||
77 | socket->readBlock(tempString, ba); | ||
78 | printf("HttpComm::incoming: ba: %d\n", ba); | ||
79 | QString sclength; | ||
80 | |||
81 | if(headerRead == false) | ||
82 | { | ||
83 | for(i=0; i<ba; i++) | ||
84 | { | ||
85 | if(tempString[i] != '\r') | ||
86 | { | ||
87 | if(tempString[i] == '\n' && header[header.length()-1] == '\n') | ||
88 | { | ||
89 | j=i; | ||
90 | headerRead = true; | ||
91 | parseHeader(); | ||
92 | goto body; | ||
93 | } | ||
94 | else | ||
95 | { | ||
96 | header+=tempString[i]; | ||
97 | } | ||
98 | } | ||
99 | // printf("%d %d\n", ba, i); | ||
100 | } | ||
101 | } | ||
102 | else | ||
103 | { | ||
104 | body: | ||
105 | printf("HttpComm::incoming: reading body\n"); | ||
106 | printf("HttpComm::incoming: j is: %d\n", j); | ||
107 | if(!chunked) | ||
108 | { | ||
109 | //make sure we didnt just leave that break above... | ||
110 | if(j != 0) | ||
111 | { | ||
112 | for( ; j<ba ; j++) | ||
113 | { | ||
114 | body+=tempString[j]; | ||
115 | bRead++; | ||
116 | // printf("bRead1: %d\n", bRead); | ||
117 | } | ||
118 | } | ||
119 | else | ||
120 | { | ||
121 | body += tempString; | ||
122 | bRead+=ba; | ||
123 | // printf("bRead2: %d\n", bRead); | ||
124 | } | ||
125 | |||
126 | if(bRead >= length) | ||
127 | { | ||
128 | printf("HttpComm::incoming: finished reading body\n"); | ||
129 | processBody(); | ||
130 | socket->close(); | ||
131 | } | ||
132 | } | ||
133 | else | ||
134 | { | ||
135 | QString tempQString = tempString; | ||
136 | //remove the http header, if one exists | ||
137 | if(j != 0) | ||
138 | { | ||
139 | tempQString.remove(0, j); | ||
140 | } | ||
141 | while(!done) | ||
142 | { | ||
143 | switch(status) | ||
144 | { | ||
145 | //case 0=need to read chunk length | ||
146 | case 0: | ||
147 | j = tempQString.find('\n'); | ||
148 | sclength = tempQString; | ||
149 | sclength.truncate(j); | ||
150 | clength = sclength.toUInt(0, 16); | ||
151 | printf("HttpComm::Incoming: chunk length: %d\n", clength); | ||
152 | if(clength==0) | ||
153 | { | ||
154 | processBody(); | ||
155 | done=true; | ||
156 | } | ||
157 | if(ba <= j) | ||
158 | { | ||
159 | status=1; | ||
160 | done=true; | ||
161 | // break; | ||
162 | } | ||
163 | else | ||
164 | { | ||
165 | done=false; | ||
166 | } | ||
167 | bRead=0; | ||
168 | break; | ||
169 | //if there is more fall through to: | ||
170 | //chunk length just read, still more in tempQstring | ||
171 | case 1: | ||
172 | //the current data extends beyond the end of the chunk | ||
173 | if(bRead + tempQString.length() > clength) | ||
174 | { | ||
175 | QString newTQstring = tempQString; | ||
176 | newTQstring.truncate(clength-bRead); | ||
177 | body+=newTQstring; | ||
178 | printf("HttpComm::incoming: start new body piece 1: \n"); | ||
179 | printf("%s", newTQstring.latin1() ); | ||
180 | printf("HttpComm::incoming: end new body piece 1.\n"); | ||
181 | status=0; | ||
182 | j=clength-bRead; | ||
183 | done=false; | ||
184 | break; | ||
185 | } | ||
186 | //the chunk extends beyond the current data; | ||
187 | else | ||
188 | { | ||
189 | body+=tempQString; | ||
190 | bRead+=ba; | ||
191 | printf("HttpComm::incoming: start new body piece 2: \n"); | ||
192 | printf("%s", tempQString.latin1() ); | ||
193 | printf("HttpComm::incoming: end new body piece 2.\n"); | ||
194 | done=true; | ||
195 | break; | ||
196 | } | ||
197 | break; | ||
198 | } | ||
199 | } | ||
200 | } | ||
201 | } | ||
202 | delete tempString; | ||
203 | } | ||
204 | |||
205 | void HttpComm::connectionClosed() | ||
206 | { | ||
207 | printf("HttpComm::connectionClosed: connection closed\n"); | ||
208 | processBody(); | ||
209 | } | ||
210 | |||
211 | void HttpComm::parseHeader() | ||
212 | { | ||
213 | QStringList headerLines, tempList; | ||
214 | int i; | ||
215 | |||
216 | printf("HttpComm::parseHeader: start header\n\n"); | ||
217 | printf("%s", header.latin1()); | ||
218 | printf("HttpComm::parseHeader: end header\n"); | ||
219 | |||
220 | headerLines = QStringList::split('\n', header); | ||
221 | |||
222 | for(i=0; i<headerLines.count(); i++) | ||
223 | { | ||
224 | if(headerLines[i].startsWith("Content-Length:") ) | ||
225 | { | ||
226 | tempList = QStringList::split(':', headerLines[i]); | ||
227 | tempList[1].stripWhiteSpace(); | ||
228 | length = tempList[1].toUInt(); | ||
229 | } | ||
230 | else if(headerLines[i].startsWith("Transfer-Encoding: chunked") ) | ||
231 | { | ||
232 | printf("HttpComm::parseHeader: using chunked encoding\n"); | ||
233 | chunked = true; | ||
234 | status=0; | ||
235 | } | ||
236 | } | ||
237 | |||
238 | printf("HttpConn::parseHeader: content-length: %d\n", length); | ||
239 | } | ||
240 | |||
241 | void HttpComm::processBody() | ||
242 | { | ||
243 | //printf("HttpComm::processBody: start body\n\n"); | ||
244 | //printf("%s", body.latin1()); | ||
245 | //printf("HttpComm::processBody: end body\n"); | ||
246 | |||
247 | int lastSlash = file.findRev('/'); | ||
248 | |||
249 | QString end = file; | ||
250 | end.truncate(lastSlash-1); | ||
251 | QString context("http://"+host+':'+portS+end); | ||
252 | |||
253 | browser->setTextFormat(RichText); | ||
254 | browser->setText(body, context); | ||
255 | printf("%s\n", context.latin1() ); | ||
256 | } | ||