*
*/
-#if HAVE_CONFIG_H
-# include "config.h"
-#endif
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>
#include <lib-lib/mem.h>
#include <lib-lib/str.h>
#include <lib-mime/mime.h>
-#include "mutt.h"
#include "charset.h"
-#include "rfc2047.h"
-#include <ctype.h>
-#include <string.h>
-#include <stdlib.h>
+typedef struct rfc2231_param {
+ struct rfc2231_param *next;
-struct rfc2231_parameter {
- char *attribute;
- char *value;
- int index;
- int encoded;
- struct rfc2231_parameter
- *next;
-};
-
-static char *rfc2231_get_charset (char *, char *, size_t);
-static struct rfc2231_parameter *rfc2231_new_parameter (void);
-static void rfc2231_decode_one (char *, char *);
-static void rfc2231_free_parameter (struct rfc2231_parameter **);
-static void rfc2231_join_continuations (PARAMETER **,
- struct rfc2231_parameter *);
-static void rfc2231_list_insert (struct rfc2231_parameter **,
- struct rfc2231_parameter *);
-
-static void purge_empty_parameters (PARAMETER ** headp)
+ char *attribute;
+ char *value;
+ int idx;
+ int encoded;
+} rfc2231_param;
+
+DO_INIT(rfc2231_param, rfc2231_param);
+static inline void rfc2231_param_wipe(rfc2231_param *param)
{
- PARAMETER *p, *q, **last;
-
- for (last = headp, p = *headp; p; p = q) {
- q = p->next;
- if (!p->attribute || !p->value) {
- *last = q;
- p->next = NULL;
- mutt_free_parameter (&p);
- }
- else
- last = &p->next;
- }
+ p_delete(¶m->attribute);
+ p_delete(¶m->value);
}
+DO_NEW(rfc2231_param, rfc2231_param);
+DO_DELETE(rfc2231_param, rfc2231_param);
-
-void rfc2231_decode_parameters (PARAMETER ** headp)
+/* TODO: MC: replace with a str_unescape */
+static void rfc2231_decode_one(char *dst, const char *src)
{
- PARAMETER *head = NULL;
- PARAMETER **last;
- PARAMETER *p, *q;
-
- struct rfc2231_parameter *conthead = NULL;
- struct rfc2231_parameter *conttmp;
-
- char *s, *t;
- char charset[STRING];
-
- int encoded;
- int index;
- short dirty = 0; /* set to 1 when we may have created
- * empty parameters.
- */
-
- if (!headp)
- return;
-
- purge_empty_parameters (headp);
+ while (*src) {
+ int h1, h2;
+
+ if (*src == '%'
+ && (h1 = hexval(src[1])) >= 0 && (h2 = hexval(src[2])) >= 0)
+ {
+ *dst++ = (h1 << 4) | h2;
+ src += 3;
+ } else {
+ *dst++ = *src++;
+ }
+ }
- for (last = &head, p = *headp; p; p = q) {
- q = p->next;
+ *dst = '\0';
+}
- if (!(s = strchr (p->attribute, '*'))) {
+/* read the <charset>'foo' part into charset, and skip that */
+static char *rfc2231_get_charset(char *value, char *charset, size_t chslen)
+{
+ char *t, *u;
- /*
- * Using RFC 2047 encoding in MIME parameters is explicitly
- * forbidden by that document. Nevertheless, it's being
- * generated by some software, including certain Lotus Notes to
- * Internet Gateways. So we actually decode it.
- */
+ t = strchr(value, '\'');
+ if (!t) {
+ charset[0] = '\0';
+ return value;
+ }
- if (option (OPTRFC2047PARAMS) && p->value && strstr (p->value, "=?"))
- rfc2047_decode (&p->value);
- else if (!option (OPTSTRICTMIME)) {
- if (ascii_strcasecmp (AssumedCharset, "us-ascii"))
- mutt_convert_nonmime_string (&p->value);
- }
+ *t = '\0';
+ m_strcpy(charset, chslen, value);
- *last = p;
- last = &p->next;
- p->next = NULL;
+ if ((u = strchr(t + 1, '\''))) {
+ return u + 1;
+ } else {
+ return t + 1;
}
- else if (*(s + 1) == '\0') {
- *s = '\0';
+}
- s = rfc2231_get_charset (p->value, charset, sizeof (charset));
- rfc2231_decode_one (p->value, s);
- mutt_convert_string (&p->value, charset, Charset, M_ICONV_HOOK_FROM);
- *last = p;
- last = &p->next;
- p->next = NULL;
+/* insert parameter into an ordered list.
+ *
+ * Primary sorting key: attribute
+ * Secondary sorting key: idx
+ *
+ * XXX: MC: looks very unclear to me
+ */
+static void
+rfc2231_list_insert(rfc2231_param **list, rfc2231_param *par)
+{
+ int c;
- dirty = 1;
- }
- else {
- *s = '\0';
- s++; /* let s point to the first character of index. */
- for (t = s; *t && isdigit ((unsigned char) *t); t++);
- encoded = (*t == '*');
- *t = '\0';
-
- index = atoi (s);
-
- conttmp = rfc2231_new_parameter ();
- conttmp->attribute = p->attribute;
- conttmp->value = p->value;
- conttmp->encoded = encoded;
- conttmp->index = index;
-
- p->attribute = NULL;
- p->value = NULL;
- p_delete(&p);
-
- rfc2231_list_insert (&conthead, conttmp);
- }
- }
+ while (*list) {
+ rfc2231_param *q = *list;
- if (conthead) {
- rfc2231_join_continuations (last, conthead);
- dirty = 1;
- }
+ list = &(*list)->next;
- *headp = head;
+ c = m_strcmp(par->value, q->value);
+ if ((c > 0) || (c == 0 && par->idx >= q->idx))
+ break;
+ }
- if (dirty)
- purge_empty_parameters (headp);
+ par->next = *list;
+ *list = par;
}
-static struct rfc2231_parameter *rfc2231_new_parameter (void)
+static void purge_empty_parameters(PARAMETER **headp)
{
- return p_new(struct rfc2231_parameter, 1);
+ while (*headp) {
+ PARAMETER *p = *headp;
+
+ if (!p->attribute || !p->value) {
+ *headp = p->next;
+ p->next = NULL;
+ parameter_delete(&p);
+ } else {
+ headp = &(*headp)->next;
+ }
+ }
}
-static void rfc2231_free_parameter (struct rfc2231_parameter **p)
+/* process continuation parameters */
+/* XXX: MC: not read */
+static void
+rfc2231_join_continuations(PARAMETER **head, rfc2231_param *par)
{
- if (*p) {
- p_delete(&(*p)->attribute);
- p_delete(&(*p)->value);
- p_delete(p);
- }
+ rfc2231_param *q;
+
+ char attribute[STRING];
+ char charset[STRING];
+ char *value = NULL;
+ char *valp;
+ int encoded;
+
+ size_t l, vl;
+
+ while (par) {
+ value = NULL;
+ l = 0;
+
+ m_strcpy(attribute, sizeof(attribute), par->attribute);
+
+ if ((encoded = par->encoded))
+ valp = rfc2231_get_charset (par->value, charset, sizeof (charset));
+ else
+ valp = par->value;
+
+ do {
+ if (encoded && par->encoded)
+ rfc2231_decode_one (par->value, valp);
+
+ vl = m_strlen(par->value);
+
+ p_realloc(&value, l + vl + 1);
+ strcpy (value + l, par->value); /* __STRCPY_CHECKED__ */
+ l += vl;
+
+ q = par->next;
+ rfc2231_param_delete (&par);
+ if ((par = q))
+ valp = par->value;
+ } while (par && !m_strcmp(par->attribute, attribute));
+
+ if (value) {
+ if (encoded)
+ mutt_convert_string (&value, charset, Charset, M_ICONV_HOOK_FROM);
+ *head = parameter_new();
+ (*head)->attribute = m_strdup(attribute);
+ (*head)->value = value;
+ head = &(*head)->next;
+ }
+ }
}
-static char *rfc2231_get_charset (char *value, char *charset, size_t chslen)
+/****************************************************************************/
+/* Public API */
+/****************************************************************************/
+
+/* XXX: MC: not read */
+void rfc2231_decode_parameters (PARAMETER ** headp)
{
- char *t, *u;
+ PARAMETER *head = NULL;
+ PARAMETER **last;
+ PARAMETER *p, *q;
- if (!(t = strchr (value, '\''))) {
- charset[0] = '\0';
- return value;
- }
+ rfc2231_param *conthead = NULL;
+ rfc2231_param *conttmp;
- *t = '\0';
- m_strcpy(charset, chslen, value);
+ char *s, *t;
+ char charset[STRING];
- if ((u = strchr (t + 1, '\'')))
- return u + 1;
- else
- return t + 1;
-}
+ int encoded;
+ int idx;
+ short dirty = 0; /* 1 when we may have created empty parameters. */
-static void rfc2231_decode_one (char *dest, char *src)
-{
- char *d;
-
- for (d = dest; *src; src++) {
- if (*src == '%' &&
- isxdigit ((unsigned char) *(src + 1)) &&
- isxdigit ((unsigned char) *(src + 2))) {
- *d++ = (hexval (*(src + 1)) << 4) | (hexval (*(src + 2)));
- src += 2;
+ if (!headp)
+ return;
+
+ purge_empty_parameters (headp);
+
+ for (last = &head, p = *headp; p; p = q) {
+ q = p->next;
+
+ if (!(s = strchr (p->attribute, '*'))) {
+
+ /*
+ * Using RFC 2047 encoding in MIME parameters is explicitly
+ * forbidden by that document. Nevertheless, it's being
+ * generated by some software, including certain Lotus Notes to
+ * Internet Gateways. So we actually decode it.
+ */
+
+ if (option (OPTRFC2047PARAMS) && p->value && strstr (p->value, "=?"))
+ rfc2047_decode (&p->value);
+ else if (!option (OPTSTRICTMIME)) {
+ if (ascii_strcasecmp (AssumedCharset, "us-ascii"))
+ mutt_convert_nonmime_string (&p->value);
+ }
+
+ *last = p;
+ last = &p->next;
+ p->next = NULL;
+ }
+ else if (*(s + 1) == '\0') {
+ *s = '\0';
+
+ s = rfc2231_get_charset (p->value, charset, sizeof (charset));
+ rfc2231_decode_one (p->value, s);
+ mutt_convert_string (&p->value, charset, Charset, M_ICONV_HOOK_FROM);
+
+ *last = p;
+ last = &p->next;
+ p->next = NULL;
+
+ dirty = 1;
+ }
+ else {
+ *s = '\0';
+ s++; /* let s point to the first character of idx. */
+ for (t = s; *t && isdigit ((unsigned char) *t); t++);
+ encoded = (*t == '*');
+ *t = '\0';
+
+ idx = atoi (s);
+
+ conttmp = rfc2231_param_new ();
+ conttmp->attribute = p->attribute;
+ conttmp->value = p->value;
+ conttmp->encoded = encoded;
+ conttmp->idx = idx;
+
+ p->attribute = NULL;
+ p->value = NULL;
+ p_delete(&p);
+
+ rfc2231_list_insert (&conthead, conttmp);
+ }
}
- else
- *d++ = *src;
- }
- *d = '\0';
-}
+ if (conthead) {
+ rfc2231_join_continuations (last, conthead);
+ dirty = 1;
+ }
-/* insert parameter into an ordered list.
- *
- * Primary sorting key: attribute
- * Secondary sorting key: index
- */
+ *headp = head;
-static void rfc2231_list_insert (struct rfc2231_parameter **list,
- struct rfc2231_parameter *par)
-{
- struct rfc2231_parameter **last = list;
- struct rfc2231_parameter *p = *list, *q;
- int c;
-
- while (p) {
- last = &p->next;
- q = p;
- p = p->next;
-
- c = m_strcmp(par->value, q->value);
- if ((c > 0) || (c == 0 && par->index >= q->index))
- break;
- }
-
- par->next = p;
- *last = par;
+ if (dirty)
+ purge_empty_parameters (headp);
}
-/* process continuation parameters */
+#define RFC2231_SPECIALS "@.,;:<>[]\\\"()?/= \t*'%"
-static void rfc2231_join_continuations (PARAMETER ** head,
- struct rfc2231_parameter *par)
+int rfc2231_encode_string(char **s)
{
- struct rfc2231_parameter *q;
-
- char attribute[STRING];
- char charset[STRING];
- char *value = NULL;
- char *valp;
- int encoded;
-
- size_t l, vl;
-
- while (par) {
- value = NULL;
- l = 0;
-
- m_strcpy(attribute, sizeof(attribute), par->attribute);
-
- if ((encoded = par->encoded))
- valp = rfc2231_get_charset (par->value, charset, sizeof (charset));
- else
- valp = par->value;
-
- do {
- if (encoded && par->encoded)
- rfc2231_decode_one (par->value, valp);
-
- vl = m_strlen(par->value);
-
- p_realloc(&value, l + vl + 1);
- strcpy (value + l, par->value); /* __STRCPY_CHECKED__ */
- l += vl;
-
- q = par->next;
- rfc2231_free_parameter (&par);
- if ((par = q))
- valp = par->value;
- } while (par && !m_strcmp(par->attribute, attribute));
-
- if (value) {
- if (encoded)
- mutt_convert_string (&value, charset, Charset, M_ICONV_HOOK_FROM);
- *head = mutt_new_parameter ();
- (*head)->attribute = m_strdup(attribute);
- (*head)->value = value;
- head = &(*head)->next;
+ char *charset = NULL;
+ char *e, *p, *t, *d = NULL;
+ int escapes = 0;
+ ssize_t dlen = 0;
+
+ /*
+ * A shortcut to detect pure 7bit data.
+ *
+ * This should prevent the worst when character set handling is flawed.
+ */
+
+ for (p = *s; ; p++) {
+ if (*p & 0x80)
+ break;
+ if (!*p)
+ return 0;
}
- }
-}
-int rfc2231_encode_string (char **pd)
-{
- int ext = 0, encode = 0;
- char *charset, *s, *t, *e, *d = 0;
- size_t slen, dlen = 0;
-
- /*
- * A shortcut to detect pure 7bit data.
- *
- * This should prevent the worst when character set handling
- * is flawed.
- */
-
- for (s = *pd; *s; s++)
- if (*s & 0x80)
- break;
-
- if (!*s)
- return 0;
-
- if (!Charset || !SendCharset ||
- !(charset = mutt_choose_charset (Charset, SendCharset,
- *pd, m_strlen(*pd), &d, &dlen))) {
- charset = m_strdup(Charset ? Charset : "unknown-8bit");
- d = *pd;
- dlen = m_strlen(d);
- }
-
- if (!mutt_is_us_ascii (charset))
- encode = 1;
-
- for (s = d, slen = dlen; slen; s++, slen--)
- if (*s < 0x20 || *s >= 0x7f)
- encode = 1, ++ext;
- else if (strchr (MimeSpecials, *s) || strchr ("*'%", *s))
- ++ext;
-
- if (encode) {
- e = p_new(char, dlen + 2 * ext + m_strlen(charset) + 3);
- sprintf (e, "%s''", charset); /* __SPRINTF_CHECKED__ */
- t = e + m_strlen(e);
- for (s = d, slen = dlen; slen; s++, slen--)
- if (*s < 0x20 || *s >= 0x7f ||
- strchr (MimeSpecials, *s) || strchr ("*'%", *s)) {
- sprintf (t, "%%%02X", (unsigned char) *s);
- t += 3;
- }
- else
- *t++ = *s;
- *t = '\0';
+ if (Charset && SendCharset) {
+ charset = mutt_choose_charset(Charset, SendCharset,
+ *s, m_strlen(*s), &d, &dlen);
+ }
+
+ if (!charset) {
+ charset = m_strdup(Charset ? Charset : "unknown-8bit");
+ d = *s;
+ dlen = m_strlen(d);
+ }
- if (d != *pd)
- p_delete(&d);
- p_delete(pd);
- *pd = e;
- }
- else if (d != *pd) {
- p_delete(pd);
- *pd = d;
- }
+ for (p = d; *p; p++) {
+ if (*p < 0x20 || *p >= 0x7f || strchr(RFC2231_SPECIALS, *p)) {
+ ++escapes;
+ }
+ }
+
+ e = p_new(char, dlen + 2 * escapes + m_strlen(charset) + 3);
+
+ t = e + sprintf(e, "%s''", charset);
+ for (p = d; *p; p++) {
+ if (*p < 0x20 || *p >= 0x7f || strchr(RFC2231_SPECIALS, *p)) {
+ *t++ = '%';
+ *t++ = __m_b36chars_upper[*p >> 4];
+ *t++ = __m_b36chars_upper[*p & 0xf];
+ } else {
+ *t++ = *p;
+ }
+ }
+ *t = '\0';
- p_delete(&charset);
+ if (d != *s)
+ p_delete(&d);
+ p_delete(s);
+ p_delete(&charset);
- return encode;
+ *s = e;
+ return 1;
}
projects / apps / madmutt.git / blobdiff