annotate mupdf-source/thirdparty/curl/lib/vauth/cleartext.c @ 40:aa33339d6b8a upstream

ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 11:31:38 +0200
parents b50eed0cc0ef
children
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1 /***************************************************************************
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2 * _ _ ____ _
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3 * Project ___| | | | _ \| |
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4 * / __| | | | |_) | |
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5 * | (__| |_| | _ <| |___
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6 * \___|\___/|_| \_\_____|
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7 *
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8 * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
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9 *
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10 * This software is licensed as described in the file COPYING, which
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11 * you should have received as part of this distribution. The terms
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12 * are also available at https://curl.haxx.se/docs/copyright.html.
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13 *
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14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 * copies of the Software, and permit persons to whom the Software is
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16 * furnished to do so, under the terms of the COPYING file.
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17 *
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18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 * KIND, either express or implied.
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20 *
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21 * RFC4616 PLAIN authentication
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22 * Draft LOGIN SASL Mechanism <draft-murchison-sasl-login-00.txt>
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23 *
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24 ***************************************************************************/
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26 #include "curl_setup.h"
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27
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28 #if !defined(CURL_DISABLE_IMAP) || !defined(CURL_DISABLE_SMTP) || \
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29 !defined(CURL_DISABLE_POP3)
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30
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31 #include <curl/curl.h>
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32 #include "urldata.h"
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33
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34 #include "vauth/vauth.h"
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35 #include "curl_base64.h"
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36 #include "curl_md5.h"
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37 #include "warnless.h"
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38 #include "strtok.h"
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39 #include "sendf.h"
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40 #include "curl_printf.h"
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41
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42 /* The last #include files should be: */
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43 #include "curl_memory.h"
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44 #include "memdebug.h"
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45
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46 /*
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47 * Curl_auth_create_plain_message()
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48 *
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49 * This is used to generate an already encoded PLAIN message ready
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50 * for sending to the recipient.
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51 *
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52 * Parameters:
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53 *
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54 * data [in] - The session handle.
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55 * authzid [in] - The authorization identity.
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56 * authcid [in] - The authentication identity.
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57 * passwd [in] - The password.
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58 * outptr [in/out] - The address where a pointer to newly allocated memory
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59 * holding the result will be stored upon completion.
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60 * outlen [out] - The length of the output message.
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61 *
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62 * Returns CURLE_OK on success.
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63 */
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64 CURLcode Curl_auth_create_plain_message(struct Curl_easy *data,
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65 const char *authzid,
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66 const char *authcid,
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67 const char *passwd,
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68 char **outptr, size_t *outlen)
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69 {
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70 CURLcode result;
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71 char *plainauth;
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72 size_t zlen;
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73 size_t clen;
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74 size_t plen;
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75 size_t plainlen;
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76
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77 *outlen = 0;
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78 *outptr = NULL;
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79 zlen = (authzid == NULL ? 0 : strlen(authzid));
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80 clen = strlen(authcid);
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81 plen = strlen(passwd);
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82
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83 /* Compute binary message length. Check for overflows. */
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84 if(((zlen + clen) > SIZE_T_MAX/4) || (plen > (SIZE_T_MAX/2 - 2)))
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85 return CURLE_OUT_OF_MEMORY;
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86 plainlen = zlen + clen + plen + 2;
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87
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88 plainauth = malloc(plainlen);
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89 if(!plainauth)
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90 return CURLE_OUT_OF_MEMORY;
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91
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92 /* Calculate the reply */
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93 if(zlen != 0)
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94 memcpy(plainauth, authzid, zlen);
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95 plainauth[zlen] = '\0';
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96 memcpy(plainauth + zlen + 1, authcid, clen);
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97 plainauth[zlen + clen + 1] = '\0';
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98 memcpy(plainauth + zlen + clen + 2, passwd, plen);
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99
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100 /* Base64 encode the reply */
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101 result = Curl_base64_encode(data, plainauth, plainlen, outptr, outlen);
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102 free(plainauth);
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103
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104 return result;
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105 }
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106
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107 /*
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108 * Curl_auth_create_login_message()
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109 *
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110 * This is used to generate an already encoded LOGIN message containing the
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111 * user name or password ready for sending to the recipient.
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112 *
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113 * Parameters:
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114 *
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115 * data [in] - The session handle.
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116 * valuep [in] - The user name or user's password.
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117 * outptr [in/out] - The address where a pointer to newly allocated memory
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118 * holding the result will be stored upon completion.
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119 * outlen [out] - The length of the output message.
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120 *
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121 * Returns CURLE_OK on success.
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122 */
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123 CURLcode Curl_auth_create_login_message(struct Curl_easy *data,
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124 const char *valuep, char **outptr,
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125 size_t *outlen)
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126 {
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127 size_t vlen = strlen(valuep);
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128
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129 if(!vlen) {
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130 /* Calculate an empty reply */
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131 *outptr = strdup("=");
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132 if(*outptr) {
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133 *outlen = (size_t) 1;
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134 return CURLE_OK;
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135 }
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136
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137 *outlen = 0;
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138 return CURLE_OUT_OF_MEMORY;
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139 }
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140
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141 /* Base64 encode the value */
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142 return Curl_base64_encode(data, valuep, vlen, outptr, outlen);
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143 }
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144
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145 /*
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146 * Curl_auth_create_external_message()
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147 *
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148 * This is used to generate an already encoded EXTERNAL message containing
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149 * the user name ready for sending to the recipient.
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150 *
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151 * Parameters:
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152 *
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153 * data [in] - The session handle.
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154 * user [in] - The user name.
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155 * outptr [in/out] - The address where a pointer to newly allocated memory
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156 * holding the result will be stored upon completion.
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157 * outlen [out] - The length of the output message.
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158 *
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159 * Returns CURLE_OK on success.
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160 */
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161 CURLcode Curl_auth_create_external_message(struct Curl_easy *data,
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162 const char *user, char **outptr,
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163 size_t *outlen)
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164 {
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165 /* This is the same formatting as the login message */
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166 return Curl_auth_create_login_message(data, user, outptr, outlen);
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167 }
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168
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169 #endif /* if no users */