From a0a148b1c3ba5ffd4ccd6ee52607629bc58875d0 Mon Sep 17 00:00:00 2001 From: "C. McEnroe" Date: Thu, 9 Apr 2020 20:24:45 -0400 Subject: Render escaped mailto URL --- template.c | 44 +++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 43 insertions(+), 1 deletion(-) (limited to 'template.c') diff --git a/template.c b/template.c index 3caa8b2..92c6381 100644 --- a/template.c +++ b/template.c @@ -24,6 +24,48 @@ #include "archive.h" +int escapeURL(FILE *file, const char *str) { + static const char *Safe = { + "$-_.+!*'()," + "0123456789" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz" + }; + while (*str) { + size_t len = strspn(str, Safe); + if (len) { + size_t n = fwrite(str, len, 1, file); + if (!n) return -1; + } + str += len; + if (*str) { + int n = fprintf(file, "%%%02X", *str++); + if (n < 0) return n; + } + } + return 0; +} + +int escapeXML(FILE *file, const char *str) { + while (*str) { + int n = 0; + switch (*str) { + break; case '"': n = fprintf(file, """); str++; + break; case '&': n = fprintf(file, "&"); str++; + break; case '<': n = fprintf(file, "<"); str++; + break; case '>': n = fprintf(file, ">"); str++; + } + if (n < 0) return n; + size_t len = strcspn(str, "\"&<>"); + if (len) { + size_t n = fwrite(str, len, 1, file); + if (!n) return -1; + } + str += len; + } + return 0; +} + int templateRender( FILE *file, const char *template, const struct Variable *vars, EscapeFn *escape @@ -46,7 +88,7 @@ int templateRender( } int error = escape(file, value); if (error) return error; - } else { + } else if (len) { size_t n = fwrite(template, len, 1, file); if (!n) return -1; } -- cgit 1.4.1