| /* |
| * IPP data file parsing functions. |
| * |
| * Copyright © 2007-2019 by Apple Inc. |
| * Copyright © 1997-2007 by Easy Software Products. |
| * |
| * Licensed under Apache License v2.0. See the file "LICENSE" for more |
| * information. |
| */ |
| |
| /* |
| * Include necessary headers... |
| */ |
| |
| #include <cups/cups.h> |
| #include "ipp-private.h" |
| #include "string-private.h" |
| #include "debug-internal.h" |
| |
| |
| /* |
| * '_ippVarsDeinit()' - Free all memory associated with the IPP variables. |
| */ |
| |
| void |
| _ippVarsDeinit(_ipp_vars_t *v) /* I - IPP variables */ |
| { |
| if (v->uri) |
| { |
| free(v->uri); |
| v->uri = NULL; |
| } |
| |
| cupsFreeOptions(v->num_vars, v->vars); |
| v->num_vars = 0; |
| v->vars = NULL; |
| } |
| |
| |
| /* |
| * '_ippVarsExpand()' - Expand variables in the source string. |
| */ |
| |
| void |
| _ippVarsExpand(_ipp_vars_t *v, /* I - IPP variables */ |
| char *dst, /* I - Destination buffer */ |
| const char *src, /* I - Source string */ |
| size_t dstsize) /* I - Destination buffer size */ |
| { |
| char *dstptr, /* Pointer into destination */ |
| *dstend, /* End of destination */ |
| temp[256], /* Temporary string */ |
| *tempptr; /* Pointer into temporary string */ |
| const char *value; /* Value to substitute */ |
| |
| |
| dstptr = dst; |
| dstend = dst + dstsize - 1; |
| |
| while (*src && dstptr < dstend) |
| { |
| if (*src == '$') |
| { |
| /* |
| * Substitute a string/number... |
| */ |
| |
| if (!strncmp(src, "$$", 2)) |
| { |
| value = "$"; |
| src += 2; |
| } |
| else if (!strncmp(src, "$ENV[", 5)) |
| { |
| strlcpy(temp, src + 5, sizeof(temp)); |
| |
| for (tempptr = temp; *tempptr; tempptr ++) |
| if (*tempptr == ']') |
| break; |
| |
| if (*tempptr) |
| *tempptr++ = '\0'; |
| |
| value = getenv(temp); |
| src += tempptr - temp + 5; |
| } |
| else |
| { |
| if (src[1] == '{') |
| { |
| src += 2; |
| strlcpy(temp, src, sizeof(temp)); |
| if ((tempptr = strchr(temp, '}')) != NULL) |
| *tempptr = '\0'; |
| else |
| tempptr = temp + strlen(temp); |
| } |
| else |
| { |
| strlcpy(temp, src + 1, sizeof(temp)); |
| |
| for (tempptr = temp; *tempptr; tempptr ++) |
| if (!isalnum(*tempptr & 255) && *tempptr != '-' && *tempptr != '_') |
| break; |
| |
| if (*tempptr) |
| *tempptr = '\0'; |
| } |
| |
| value = _ippVarsGet(v, temp); |
| |
| src += tempptr - temp + 1; |
| } |
| |
| if (value) |
| { |
| strlcpy(dstptr, value, (size_t)(dstend - dstptr + 1)); |
| dstptr += strlen(dstptr); |
| } |
| } |
| else |
| *dstptr++ = *src++; |
| } |
| |
| *dstptr = '\0'; |
| } |
| |
| |
| /* |
| * '_ippVarsGet()' - Get a variable string. |
| */ |
| |
| const char * /* O - Value or @code NULL@ if not set */ |
| _ippVarsGet(_ipp_vars_t *v, /* I - IPP variables */ |
| const char *name) /* I - Variable name */ |
| { |
| if (!v) |
| return (NULL); |
| else if (!strcmp(name, "uri")) |
| return (v->uri); |
| else if (!strcmp(name, "uriuser") || !strcmp(name, "username")) |
| return (v->username[0] ? v->username : NULL); |
| else if (!strcmp(name, "scheme") || !strcmp(name, "method")) |
| return (v->scheme); |
| else if (!strcmp(name, "hostname")) |
| return (v->host); |
| else if (!strcmp(name, "port")) |
| return (v->portstr); |
| else if (!strcmp(name, "resource")) |
| return (v->resource); |
| else if (!strcmp(name, "user")) |
| return (cupsUser()); |
| else |
| return (cupsGetOption(name, v->num_vars, v->vars)); |
| } |
| |
| |
| /* |
| * '_ippVarsInit()' - Initialize . |
| */ |
| |
| void |
| _ippVarsInit(_ipp_vars_t *v, /* I - IPP variables */ |
| _ipp_fattr_cb_t attrcb, /* I - Attribute (filter) callback */ |
| _ipp_ferror_cb_t errorcb, /* I - Error callback */ |
| _ipp_ftoken_cb_t tokencb) /* I - Token callback */ |
| { |
| memset(v, 0, sizeof(_ipp_vars_t)); |
| |
| v->attrcb = attrcb; |
| v->errorcb = errorcb; |
| v->tokencb = tokencb; |
| } |
| |
| |
| /* |
| * '_ippVarsPasswordCB()' - Password callback using the IPP variables. |
| */ |
| |
| const char * /* O - Password string or @code NULL@ */ |
| _ippVarsPasswordCB( |
| const char *prompt, /* I - Prompt string (not used) */ |
| http_t *http, /* I - HTTP connection (not used) */ |
| const char *method, /* I - HTTP method (not used) */ |
| const char *resource, /* I - Resource path (not used) */ |
| void *user_data) /* I - IPP variables */ |
| { |
| _ipp_vars_t *v = (_ipp_vars_t *)user_data; |
| /* I - IPP variables */ |
| |
| |
| (void)prompt; |
| (void)http; |
| (void)method; |
| (void)resource; |
| |
| if (v->username[0] && v->password && v->password_tries < 3) |
| { |
| v->password_tries ++; |
| |
| cupsSetUser(v->username); |
| |
| return (v->password); |
| } |
| else |
| { |
| return (NULL); |
| } |
| } |
| |
| |
| /* |
| * '_ippVarsSet()' - Set an IPP variable. |
| */ |
| |
| int /* O - 1 on success, 0 on failure */ |
| _ippVarsSet(_ipp_vars_t *v, /* I - IPP variables */ |
| const char *name, /* I - Variable name */ |
| const char *value) /* I - Variable value */ |
| { |
| if (!strcmp(name, "uri")) |
| { |
| char uri[1024]; /* New printer URI */ |
| http_uri_status_t uri_status; /* URI status */ |
| |
| 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) |
| return (0); |
| |
| if (v->username[0]) |
| { |
| if ((v->password = strchr(v->username, ':')) != NULL) |
| *(v->password)++ = '\0'; |
| } |
| |
| snprintf(v->portstr, sizeof(v->portstr), "%d", v->port); |
| |
| if (v->uri) |
| free(v->uri); |
| |
| httpAssembleURI(HTTP_URI_CODING_ALL, uri, sizeof(uri), v->scheme, NULL, v->host, v->port, v->resource); |
| v->uri = strdup(uri); |
| |
| return (v->uri != NULL); |
| } |
| else |
| { |
| v->num_vars = cupsAddOption(name, value, v->num_vars, &v->vars); |
| return (1); |
| } |
| } |