summaryrefslogtreecommitdiff
path: root/server/src/transactionparser.cc
blob: 3d3024c3d9c58018738e9e9ead4c0ee78eaa1205 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            transactionparser.cc
 *
 *  Fri Aug 31 09:30:06 CEST 2007
 *  Copyright 2007 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  Pracro is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "transactionparser.h"

#include <stdio.h>
#include <string.h>
#include <expat.h>

#include <string>
#include <map>

TransactionParser::TransactionParser(Transaction *transaction)
{
  this->transaction = transaction;
  done = false;
}

TransactionParser::~TransactionParser()
{
}

void TransactionParser::startTag(std::string name, std::map< std::string, std::string> attributes)
{
  if(name == "pracro") {
    transaction->user = attributes["user"];
    transaction->cpr = attributes["cpr"];
    transaction->version = attributes["version"];
  }

  if(name == "request") {
    Request r;
    r.course = attributes["course"];
    r.macro = attributes["macro"];
    transaction->requests.push_back(r);
  }

  if(name == "commit") {
    Commit c;
    c.macro = attributes["macro"];
    c.version = attributes["version"];
    transaction->commits.push_back(c);
  }

  if(name == "field") {
    transaction->commits.back().fields[attributes["name"]] = attributes["value"];
  }
}

void TransactionParser::endTag(std::string name)
{
  if(name == "pracro") done = true;
}

int TransactionParser::readData(char *data, size_t size)
{
  printf("readData is not uasble with transaction parser!.\nUse parse(std::string) instead.\n");
  return 0;
/*
  if(done) return 0;

  int ret;

  //  while((ret = socket->read(data, size, 1000)) == 0) { }
  
  if(ret == -1) {
    printf("Transaction parser was interrupted.\n");
    return 0;
  }
  
  return ret;
*/
}

bool TransactionParser::parse(std::string data)
{
  if(! XML_Parse(p, (char*)data.c_str(), data.size(), false) ) {
    parseError((char*)data.c_str(), data.size(), XML_ErrorString(XML_GetErrorCode(p)), (int)XML_GetCurrentLineNumber(p));
    return false;
  }

  if(done) {
    if(! XML_Parse(p, "", 0, true) ) {
      parseError("", 0, XML_ErrorString(XML_GetErrorCode(p)), (int)XML_GetCurrentLineNumber(p));
      return false;
    }
  }

  return done;
}

void TransactionParser::parseError(char *buf, size_t len, std::string error, int lineno)
{
  fprintf(stderr, "TransactionParser error at line %d: %s\n", lineno, error.c_str());
  fprintf(stderr, "\tBuffer %u bytes: [", len);
  if(fwrite(buf, len, 1, stderr) != len) {}
  fprintf(stderr, "]\n");
  fflush(stderr);
}