Haibo Huang | 265f757 | 2019-12-13 16:47:52 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * IPP data file parsing functions. |
| 3 | * |
| 4 | * Copyright © 2007-2019 by Apple Inc. |
| 5 | * Copyright © 1997-2007 by Easy Software Products. |
| 6 | * |
| 7 | * Licensed under Apache License v2.0. See the file "LICENSE" for more |
| 8 | * information. |
| 9 | */ |
| 10 | |
| 11 | /* |
| 12 | * Include necessary headers... |
| 13 | */ |
| 14 | |
| 15 | #include <cups/cups.h> |
| 16 | #include "ipp-private.h" |
| 17 | #include "string-private.h" |
| 18 | #include "debug-internal.h" |
| 19 | |
| 20 | |
| 21 | /* |
| 22 | * '_ippVarsDeinit()' - Free all memory associated with the IPP variables. |
| 23 | */ |
| 24 | |
| 25 | void |
| 26 | _ippVarsDeinit(_ipp_vars_t *v) /* I - IPP variables */ |
| 27 | { |
| 28 | if (v->uri) |
| 29 | { |
| 30 | free(v->uri); |
| 31 | v->uri = NULL; |
| 32 | } |
| 33 | |
| 34 | cupsFreeOptions(v->num_vars, v->vars); |
| 35 | v->num_vars = 0; |
| 36 | v->vars = NULL; |
| 37 | } |
| 38 | |
| 39 | |
| 40 | /* |
| 41 | * '_ippVarsExpand()' - Expand variables in the source string. |
| 42 | */ |
| 43 | |
| 44 | void |
| 45 | _ippVarsExpand(_ipp_vars_t *v, /* I - IPP variables */ |
| 46 | char *dst, /* I - Destination buffer */ |
| 47 | const char *src, /* I - Source string */ |
| 48 | size_t dstsize) /* I - Destination buffer size */ |
| 49 | { |
| 50 | char *dstptr, /* Pointer into destination */ |
| 51 | *dstend, /* End of destination */ |
| 52 | temp[256], /* Temporary string */ |
| 53 | *tempptr; /* Pointer into temporary string */ |
| 54 | const char *value; /* Value to substitute */ |
| 55 | |
| 56 | |
| 57 | dstptr = dst; |
| 58 | dstend = dst + dstsize - 1; |
| 59 | |
| 60 | while (*src && dstptr < dstend) |
| 61 | { |
| 62 | if (*src == '$') |
| 63 | { |
| 64 | /* |
| 65 | * Substitute a string/number... |
| 66 | */ |
| 67 | |
| 68 | if (!strncmp(src, "$$", 2)) |
| 69 | { |
| 70 | value = "$"; |
| 71 | src += 2; |
| 72 | } |
| 73 | else if (!strncmp(src, "$ENV[", 5)) |
| 74 | { |
| 75 | strlcpy(temp, src + 5, sizeof(temp)); |
| 76 | |
| 77 | for (tempptr = temp; *tempptr; tempptr ++) |
| 78 | if (*tempptr == ']') |
| 79 | break; |
| 80 | |
| 81 | if (*tempptr) |
| 82 | *tempptr++ = '\0'; |
| 83 | |
| 84 | value = getenv(temp); |
| 85 | src += tempptr - temp + 5; |
| 86 | } |
| 87 | else |
| 88 | { |
| 89 | if (src[1] == '{') |
| 90 | { |
| 91 | src += 2; |
| 92 | strlcpy(temp, src, sizeof(temp)); |
| 93 | if ((tempptr = strchr(temp, '}')) != NULL) |
| 94 | *tempptr = '\0'; |
| 95 | else |
| 96 | tempptr = temp + strlen(temp); |
| 97 | } |
| 98 | else |
| 99 | { |
| 100 | strlcpy(temp, src + 1, sizeof(temp)); |
| 101 | |
| 102 | for (tempptr = temp; *tempptr; tempptr ++) |
| 103 | if (!isalnum(*tempptr & 255) && *tempptr != '-' && *tempptr != '_') |
| 104 | break; |
| 105 | |
| 106 | if (*tempptr) |
| 107 | *tempptr = '\0'; |
| 108 | } |
| 109 | |
| 110 | value = _ippVarsGet(v, temp); |
| 111 | |
| 112 | src += tempptr - temp + 1; |
| 113 | } |
| 114 | |
| 115 | if (value) |
| 116 | { |
| 117 | strlcpy(dstptr, value, (size_t)(dstend - dstptr + 1)); |
| 118 | dstptr += strlen(dstptr); |
| 119 | } |
| 120 | } |
| 121 | else |
| 122 | *dstptr++ = *src++; |
| 123 | } |
| 124 | |
| 125 | *dstptr = '\0'; |
| 126 | } |
| 127 | |
| 128 | |
| 129 | /* |
| 130 | * '_ippVarsGet()' - Get a variable string. |
| 131 | */ |
| 132 | |
| 133 | const char * /* O - Value or @code NULL@ if not set */ |
| 134 | _ippVarsGet(_ipp_vars_t *v, /* I - IPP variables */ |
| 135 | const char *name) /* I - Variable name */ |
| 136 | { |
| 137 | if (!v) |
| 138 | return (NULL); |
| 139 | else if (!strcmp(name, "uri")) |
| 140 | return (v->uri); |
| 141 | else if (!strcmp(name, "uriuser") || !strcmp(name, "username")) |
| 142 | return (v->username[0] ? v->username : NULL); |
| 143 | else if (!strcmp(name, "scheme") || !strcmp(name, "method")) |
| 144 | return (v->scheme); |
| 145 | else if (!strcmp(name, "hostname")) |
| 146 | return (v->host); |
| 147 | else if (!strcmp(name, "port")) |
| 148 | return (v->portstr); |
| 149 | else if (!strcmp(name, "resource")) |
| 150 | return (v->resource); |
| 151 | else if (!strcmp(name, "user")) |
| 152 | return (cupsUser()); |
| 153 | else |
| 154 | return (cupsGetOption(name, v->num_vars, v->vars)); |
| 155 | } |
| 156 | |
| 157 | |
| 158 | /* |
| 159 | * '_ippVarsInit()' - Initialize . |
| 160 | */ |
| 161 | |
| 162 | void |
| 163 | _ippVarsInit(_ipp_vars_t *v, /* I - IPP variables */ |
| 164 | _ipp_fattr_cb_t attrcb, /* I - Attribute (filter) callback */ |
| 165 | _ipp_ferror_cb_t errorcb, /* I - Error callback */ |
| 166 | _ipp_ftoken_cb_t tokencb) /* I - Token callback */ |
| 167 | { |
| 168 | memset(v, 0, sizeof(_ipp_vars_t)); |
| 169 | |
| 170 | v->attrcb = attrcb; |
| 171 | v->errorcb = errorcb; |
| 172 | v->tokencb = tokencb; |
| 173 | } |
| 174 | |
| 175 | |
| 176 | /* |
| 177 | * '_ippVarsPasswordCB()' - Password callback using the IPP variables. |
| 178 | */ |
| 179 | |
| 180 | const char * /* O - Password string or @code NULL@ */ |
| 181 | _ippVarsPasswordCB( |
| 182 | const char *prompt, /* I - Prompt string (not used) */ |
| 183 | http_t *http, /* I - HTTP connection (not used) */ |
| 184 | const char *method, /* I - HTTP method (not used) */ |
| 185 | const char *resource, /* I - Resource path (not used) */ |
| 186 | void *user_data) /* I - IPP variables */ |
| 187 | { |
| 188 | _ipp_vars_t *v = (_ipp_vars_t *)user_data; |
| 189 | /* I - IPP variables */ |
| 190 | |
| 191 | |
| 192 | (void)prompt; |
| 193 | (void)http; |
| 194 | (void)method; |
| 195 | (void)resource; |
| 196 | |
| 197 | if (v->username[0] && v->password && v->password_tries < 3) |
| 198 | { |
| 199 | v->password_tries ++; |
| 200 | |
| 201 | cupsSetUser(v->username); |
| 202 | |
| 203 | return (v->password); |
| 204 | } |
| 205 | else |
| 206 | { |
| 207 | return (NULL); |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | |
| 212 | /* |
| 213 | * '_ippVarsSet()' - Set an IPP variable. |
| 214 | */ |
| 215 | |
| 216 | int /* O - 1 on success, 0 on failure */ |
| 217 | _ippVarsSet(_ipp_vars_t *v, /* I - IPP variables */ |
| 218 | const char *name, /* I - Variable name */ |
| 219 | const char *value) /* I - Variable value */ |
| 220 | { |
| 221 | if (!strcmp(name, "uri")) |
| 222 | { |
| 223 | char uri[1024]; /* New printer URI */ |
| 224 | http_uri_status_t uri_status; /* URI status */ |
| 225 | |
| 226 | if ((uri_status = httpSeparateURI(HTTP_URI_CODING_ALL, value, v->scheme, sizeof(v->scheme), v->username, sizeof(v->username), v->host, sizeof(v->host), &(v->port), v->resource, sizeof(v->resource))) < HTTP_URI_STATUS_OK) |
| 227 | return (0); |
| 228 | |
| 229 | if (v->username[0]) |
| 230 | { |
| 231 | if ((v->password = strchr(v->username, ':')) != NULL) |
| 232 | *(v->password)++ = '\0'; |
| 233 | } |
| 234 | |
| 235 | snprintf(v->portstr, sizeof(v->portstr), "%d", v->port); |
| 236 | |
| 237 | if (v->uri) |
| 238 | free(v->uri); |
| 239 | |
| 240 | httpAssembleURI(HTTP_URI_CODING_ALL, uri, sizeof(uri), v->scheme, NULL, v->host, v->port, v->resource); |
| 241 | v->uri = strdup(uri); |
| 242 | |
| 243 | return (v->uri != NULL); |
| 244 | } |
| 245 | else |
| 246 | { |
| 247 | v->num_vars = cupsAddOption(name, value, v->num_vars, &v->vars); |
| 248 | return (1); |
| 249 | } |
| 250 | } |