From fcfec5c1bc9e786ab240f4b8d198b2e8ea15a9d5 Mon Sep 17 00:00:00 2001
From: Rodrigo Arias Mallo <rodarima@gmail.com>
Date: Sat, 5 Apr 2025 02:03:12 +0200
Subject: Move a_Misc_parse_content_disposition() to misc.h

For now it allows building the unit test without linking problems. A
more long-term solution is to split the code into separate modules that
can be tested more easily.
---
 src/misc.c | 95 --------------------------------------------------------------
 1 file changed, 95 deletions(-)

(limited to 'src/misc.c')

diff --git a/src/misc.c b/src/misc.c
index 1791e4c7..9129f819 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -354,101 +354,6 @@ int a_Misc_content_type_check(const char *EntryType, const char *DetectedType)
    return st;
 }
 
-
-/**
- * Parse Content-Disposition string, e.g., "attachment; filename="file name.jpg"".
- * Content-Disposition is defined in RFC 6266
- */
-void a_Misc_parse_content_disposition(const char *disposition, char **type, char **filename)
-{
-   static const char tspecials_space[] = "()<>@,;:\\\"/[]?= ";
-   const char terminators[] = " ;\t";
-   const char *str, *s;
-
-   if (type)
-      *type = NULL;
-   if (filename)
-      *filename = NULL;
-   if (!(str = disposition))
-      return;
-
-   for (s = str; *s && d_isascii((uchar_t)*s) && !iscntrl((uchar_t)*s) &&
-      !strchr(tspecials_space, *s); s++) ;
-   if (type && !(s == str))
-      *type = dStrndup(str, s - str);
-
-   if (!*type) {
-      return;
-   }
-
-   if (!strchr(terminators, *s)) {
-      *type = NULL;
-      return;
-   }
-
-   if (*s == ';') {
-      bool_t quoted = FALSE;
-      const char key[] = "filename";
-
-      if ((s = dStriAsciiStr(str, key)) &&
-          (s == str || strchr(terminators, s[-1]))) {
-         s += sizeof(key) - 1;
-         for ( ; *s == ' ' || *s == '\t'; ++s);
-         if (*s == '=') {
-            size_t len = 0;
-            for (++s; *s == ' ' || *s == '\t'; ++s);
-            if (*s == '"') {
-               quoted = TRUE;
-               s++;
-               for ( ; *s == '.'; ++s);
-               bool_t escaped = FALSE;
-               const char *c;
-               unsigned int maxlen = strlen(s);
-               for (c = s; !(*c == '"' && !escaped); c++) {
-                  if ((len = c - s + 1) > maxlen) {
-                     return;
-                  }
-                  escaped = *c == '\\';
-               }
-               *filename = dStrndup(s, len);
-            } else {
-               for ( ; *s == '.'; ++s);
-               if ((len = strcspn(s, terminators))) {
-                  *filename = dStrndup(s, len);
-               }
-            }
-
-            const char invalid_characters[] = "/\\|~";
-            char *s = *filename, *d = *filename;
-
-            for ( ; s < *filename + len; s++) {
-               if (strchr(invalid_characters, *s)) {
-                  // If this is a backslash preceding a quote, we want to just
-                  // skip past it without advancing the destination pointer or
-                  // copying anything.
-                  if (!(*s == '\\' && *(s+1) == '"')) {
-                     *d = '_';
-                     d++;
-                  }
-               } else if (!quoted && (!d_isascii((uchar_t)*s) || *s == '=')) {
-                  *filename = NULL;
-                  return;
-               } else {
-                  *d = *s;
-                  d++;
-               }
-            }
-
-            // Truncate filename to deal with the string being shorter if we
-            // skipped over any backslash characters in the above loop
-            if (s != d) {
-               *d = '\0';
-            }
-         }
-      }
-   }
-}
-
 /**
  * Parse a geometry string.
  */
-- 
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