diff options
Diffstat (limited to 'package/webif/files/usr/lib/webif/validate.awk')
| -rw-r--r-- | package/webif/files/usr/lib/webif/validate.awk | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/package/webif/files/usr/lib/webif/validate.awk b/package/webif/files/usr/lib/webif/validate.awk new file mode 100644 index 000000000..60b5915e2 --- /dev/null +++ b/package/webif/files/usr/lib/webif/validate.awk @@ -0,0 +1,151 @@ +# $1 = type +# $2 = variable name +# $3 = field name +# $4 = options +# $5 = value +BEGIN { + FS="|" + output="" +} + +{ + valid_type = 0 + valid = 1 + # XXX: weird hack, but it works... + n = split($0, param, "|") + value = param[5] + for (i = 6; i <= n; i++) value = value FS param[i] + verr = "" +} + +$1 == "int" { + valid_type = 1 + if (value !~ /^[0-9]*$/) { valid = 0; verr = "@TR<<Invalid value>>" } +} + +# FIXME: add proper netmask validation +($1 == "ip") || ($1 == "netmask") { + valid_type = 1 + if ((value != "") && (value !~ /^[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*$/)) valid = 0 + else { + split(value, ipaddr, "\\.") + for (i = 1; i <= 4; i++) { + if ((ipaddr[i] < 0) || (ipaddr[i] > 255)) valid = 0 + } + } + if (valid == 0) verr = "@TR<<Invalid value>>" +} + +$1 == "wep" { + valid_type = 1 + if (value !~ /^[0-9A-Fa-f]*$/) { + valid = 0 + verr = "@TR<<Invalid value>>" + } else if ((length(value) != 0) && (length(value) != 10) && (length(value) != 26)) { + valid = 0 + verr = "Invalid key length" + } else if (value ~ /0$/) { + valid = 0 + verr = "Key must not end with '0'" + } +} + +$1 == "hostname" { + valid_type = 1 + if (value !~ /^[0-9a-zA-z\.\-]*$/) { + valid = 0 + verr = "@TR<<Invalid value>>" + } +} + +$1 == "string" { + valid_type = 1 +} + +$1 == "mac" { + valid_type = 1 + if ((value != "") && (value !~ /^[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]:[0-9a-fA-F][0-9a-fA-F]$/)) { + valid = 0 + verr = "@TR<<Invalid value>>" + } +} + +$1 == "port" { + valid_type = 1 + if (value !~ /^[0-9]*$/) { + valid = 0 + verr = "@TR<<Invalid value>>" + } +} + +$1 == "ports" { + valid_type = 1 + n = split(value ",", ports, ",") + for (i = 1; i <= n; i++) { + if ((ports[i] !~ /^[0-9]*$/) && (ports[i] !~ /^[0-9][0-9]*-[0-9][0-9]*$/)) { + valid = 0 + verr = "@TR<<Invalid value>>" + } + } +} + +$1 == "wpapsk" { + valid_type = 1 + if (length(value) > 64) { + valid = 0 + verr = "String too long" + } + if ((length(value) != 0) && (length(value) < 8)) { + valid = 0 + verr = "String too short" + } + if ((length(value) == 64) && (value ~ /[^0-9a-fA-F]/)) { + valid = 0 + verr = "Invalid hex key" + } +} + +valid_type != 1 { valid = 0 } + +valid == 1 { + n = split($4, options, " ") + for (i = 1; (valid == 1) && (i <= n); i++) { + if (options[i] == "required") { + if (value == "") { valid = 0; verr = "No value entered" } + } else if ((options[i] ~ /^min=/) && (value != "")) { + min = options[i] + sub(/^min=/, "", min) + min = int(min) + if ($1 == "int") { + if (value < min) { valid = 0; verr = "Value too small (minimum: " min ")" } + } else if ($1 == "string") { + if (length(value) < min) { valid = 0; verr = "Value too small (minimum length: " min ")"} + } + } else if ((options[i] ~ /^max=/) && (value != "")) { + max = options[i] + sub(/^max=/, "", max) + max = int(max) + if ($1 == "int") { + if (value > max) { valid = 0; verr = "@TR<<Value too large>> (@TR<<maximum>>: " max ")" } + } else if ($1 == "string") { + if (length(value) > max) { valid = 0; verr = "@TR<<String too short>> (@TR<<maximum>>: " max ")" } + } + } else if ((options[i] == "nodots") && ($1 == "hostname")) { + if (value ~ /\./) { + valid = 0 + verr = "@TR<<Invalid value>>" + } + } + } +} + +valid_type == 1 { + if (valid == 1) output = output $2 "=\"" value "\";\n" + else error = error "Error in " $3 ": " verr "<br />" +} + +END { + print output "ERROR=\"" error "\";\n" + if (error == "") print "return 0" + else print "return 255" +} |