cgitsb/parsing.c
Lukas Fleischer 6f9e8a9659 Use split_ident_line() in parse_user()
Use Git's built-in ident line splitting algorithm instead of
reimplementing it. This does not only simplify the code but also makes
sure that cgit is consistent with Git when it comes to author parsing.

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
2014-12-24 01:38:28 -07:00

256 righe
5.0 KiB
C

/* parsing.c: parsing of config files
*
* Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
/*
* url syntax: [repo ['/' cmd [ '/' path]]]
* repo: any valid repo url, may contain '/'
* cmd: log | commit | diff | tree | view | blob | snapshot
* path: any valid path, may contain '/'
*
*/
void cgit_parse_url(const char *url)
{
char *c, *cmd, *p;
struct cgit_repo *repo;
ctx.repo = NULL;
if (!url || url[0] == '\0')
return;
ctx.repo = cgit_get_repoinfo(url);
if (ctx.repo) {
ctx.qry.repo = ctx.repo->url;
return;
}
cmd = NULL;
c = strchr(url, '/');
while (c) {
c[0] = '\0';
repo = cgit_get_repoinfo(url);
if (repo) {
ctx.repo = repo;
cmd = c;
}
c[0] = '/';
c = strchr(c + 1, '/');
}
if (ctx.repo) {
ctx.qry.repo = ctx.repo->url;
p = strchr(cmd + 1, '/');
if (p) {
p[0] = '\0';
if (p[1])
ctx.qry.path = trim_end(p + 1, '/');
}
if (cmd[1])
ctx.qry.page = xstrdup(cmd + 1);
return;
}
}
static char *substr(const char *head, const char *tail)
{
char *buf;
if (tail < head)
return xstrdup("");
buf = xmalloc(tail - head + 1);
strncpy(buf, head, tail - head);
buf[tail - head] = '\0';
return buf;
}
static const char *parse_user(const char *t, char **name, char **email, unsigned long *date)
{
const char *line_end = strchrnul(t, '\n');
struct ident_split ident;
unsigned email_len;
if (!split_ident_line(&ident, t, line_end - t)) {
*name = substr(ident.name_begin, ident.name_end);
email_len = ident.mail_end - ident.mail_begin;
*email = xmalloc(strlen("<") + email_len + strlen(">") + 1);
sprintf(*email, "<%.*s>", email_len, ident.mail_begin);
if (ident.date_begin)
*date = strtoul(ident.date_begin, NULL, 10);
}
if (*line_end)
return line_end + 1;
else
return line_end;
}
#ifdef NO_ICONV
#define reencode(a, b, c)
#else
static const char *reencode(char **txt, const char *src_enc, const char *dst_enc)
{
char *tmp;
if (!txt)
return NULL;
if (!*txt || !src_enc || !dst_enc)
return *txt;
/* no encoding needed if src_enc equals dst_enc */
if (!strcasecmp(src_enc, dst_enc))
return *txt;
tmp = reencode_string(*txt, dst_enc, src_enc);
if (tmp) {
free(*txt);
*txt = tmp;
}
return *txt;
}
#endif
struct commitinfo *cgit_parse_commit(struct commit *commit)
{
struct commitinfo *ret;
const char *p = get_cached_commit_buffer(commit, NULL);
const char *t;
ret = xmalloc(sizeof(*ret));
ret->commit = commit;
ret->author = NULL;
ret->author_email = NULL;
ret->committer = NULL;
ret->committer_email = NULL;
ret->subject = NULL;
ret->msg = NULL;
ret->msg_encoding = NULL;
if (p == NULL)
return ret;
if (!starts_with(p, "tree "))
die("Bad commit: %s", sha1_to_hex(commit->object.sha1));
else
p += 46; // "tree " + hex[40] + "\n"
while (starts_with(p, "parent "))
p += 48; // "parent " + hex[40] + "\n"
if (p && starts_with(p, "author ")) {
p = parse_user(p + 7, &ret->author, &ret->author_email,
&ret->author_date);
}
if (p && starts_with(p, "committer ")) {
p = parse_user(p + 10, &ret->committer, &ret->committer_email,
&ret->committer_date);
}
if (p && starts_with(p, "encoding ")) {
p += 9;
t = strchr(p, '\n');
if (t) {
ret->msg_encoding = substr(p, t + 1);
p = t + 1;
}
}
/* if no special encoding is found, assume UTF-8 */
if (!ret->msg_encoding)
ret->msg_encoding = xstrdup("UTF-8");
// skip unknown header fields
while (p && *p && (*p != '\n')) {
p = strchr(p, '\n');
if (p)
p++;
}
// skip empty lines between headers and message
while (p && *p == '\n')
p++;
if (!p)
return ret;
t = strchr(p, '\n');
if (t) {
ret->subject = substr(p, t);
p = t + 1;
while (p && *p == '\n') {
p = strchr(p, '\n');
if (p)
p++;
}
if (p)
ret->msg = xstrdup(p);
} else
ret->subject = xstrdup(p);
reencode(&ret->author, ret->msg_encoding, PAGE_ENCODING);
reencode(&ret->author_email, ret->msg_encoding, PAGE_ENCODING);
reencode(&ret->committer, ret->msg_encoding, PAGE_ENCODING);
reencode(&ret->committer_email, ret->msg_encoding, PAGE_ENCODING);
reencode(&ret->subject, ret->msg_encoding, PAGE_ENCODING);
reencode(&ret->msg, ret->msg_encoding, PAGE_ENCODING);
return ret;
}
struct taginfo *cgit_parse_tag(struct tag *tag)
{
void *data;
enum object_type type;
unsigned long size;
const char *p;
struct taginfo *ret;
data = read_sha1_file(tag->object.sha1, &type, &size);
if (!data || type != OBJ_TAG) {
free(data);
return 0;
}
ret = xmalloc(sizeof(*ret));
ret->tagger = NULL;
ret->tagger_email = NULL;
ret->tagger_date = 0;
ret->msg = NULL;
p = data;
while (p && *p) {
if (*p == '\n')
break;
if (starts_with(p, "tagger ")) {
p = parse_user(p + 7, &ret->tagger, &ret->tagger_email,
&ret->tagger_date);
} else {
p = strchr(p, '\n');
if (p)
p++;
}
}
// skip empty lines between headers and message
while (p && *p == '\n')
p++;
if (p && *p)
ret->msg = xstrdup(p);
free(data);
return ret;
}