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annotate ui/sslconnection.h @ 178:b0579d4fa186

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Made macro MAX_FILESIZE saver with brackets. A perror debugging line.
author Bernhard Reiter <bernhard@intevation.de>
date Tue, 25 Mar 2014 17:21:40 +0100
parents d28e2624c1d5
children 17e1c8f37d72
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1 #ifndef SSLCONNECTION_H
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2 #define SSLCONNECTION_H
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3
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4 /**
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5 * @file sslconnection.h
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6 * @brief Qt wrapper around polarssl ssl api
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7 */
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8
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9 #include <QDebug>
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10 #include <QUrl>
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11 #include <QString>
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12 #include <QByteArray>
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13
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14 #include <polarssl/entropy.h>
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15 #include <polarssl/net.h>
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16 #include <polarssl/ssl.h>
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17 #include <polarssl/ctr_drbg.h>
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18 #include <polarssl/error.h>
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19 #include <polarssl/certs.h>
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20
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21 class SSLConnection
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22 {
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23 public:
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24 enum ErrorCode {
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25 NoError,
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26 NoConnection,
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27 SSLHandshakeFailed,
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28 InvalidCertificate,
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29 InvalidPinnedCertificate,
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30 InvalidResponse,
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31 ConnectionLost,
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32 Timeout,
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33 ErrUnknown
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34 };
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35
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36 /**
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37 * @brief Construct a pinned SSL Connection
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38 *
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39 * @param[in] url the Url to connect to
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40 * @param[in] certificate optional certificate to validate https connection
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41 */
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42 SSLConnection(const QString& url,
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43 const QByteArray& certificate = QByteArray());
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44
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45 ~SSLConnection();
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46
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47 /** @brief write */
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48 int write(const QByteArray& request);
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49
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50 /**
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51 * @brief read at most len bytes and reset the connection
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52 *
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53 * @param [in] len Amount of bytes to read.
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54 *
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55 * @returns a byte array containing the data or
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56 * a NULL byte array on error*/
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57 QByteArray read(size_t len);
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58
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59 bool initialized() { return mInitialized; }
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60 bool connected() { return mConnected; }
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61
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62 ErrorCode getLastError() { return mErrorState; }
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63
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64 /** @brief: Establish the connection
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65 *
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66 * @returns 0 on success otherwise a polarssl error or -1 is returned
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67 */
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68 int connect();
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69
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70 private:
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71 QUrl mUrl;
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72 QByteArray mPinnedCert;
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73 x509_crt mX509PinnedCert;
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74 entropy_context mEntropy;
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75 ctr_drbg_context mCtr_drbg;
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76 ssl_context mSSL;
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77 ssl_session mSavedSession;
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78 bool mInitialized;
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79 bool mConnected; /* A connection was established */
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80 bool mNeedsReset; /* The connection needs to be reset before the next
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81 write */
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82 int mServerFD;
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83 SSLConnection::ErrorCode mErrorState;
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84 /* @brief: Initialize polarssl structures
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85 *
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86 * This wraps polarssl initialization functions
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87 * that can return an error.
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88 * Sets the error state accordingly.
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89 *
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90 * @returns: 0 on success a polarssl error otherwise.
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91 */
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92 int init();
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93
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94 /* @brief Reset the connection.
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95 *
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96 * Resets the https connection and does another handshake.
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97 *
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98 * @returns: 0 on success a polarssl error or -1 otherwise. */
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99 int reset();
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100
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101 /* @brief validates that the certificate matches the pinned one.
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102 *
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103 * Checks the peer certificate of mSSL and validates that the
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104 * certificate matches mPinnedCertificate.
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105 *
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106 * @returns: 0 on success a polarssl error or -1 otherwise. */
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107 int validateCertificate();
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108
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109 /* @brief disconnects the connection */
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110 void disconnect();
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111 };
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112
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113 #endif
http://wald.intevation.org/projects/trustbridge/