gitweb.ps.run Git - ps-cgit/blob - parsing.c

   1 /* parsing.c: parsing of config files
   2  *
   3  * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
   4  *
   5  * Licensed under GNU General Public License v2
   6  *   (see COPYING for full license text)
   7  */
   8
   9 #define USE_THE_REPOSITORY_VARIABLE
  10
  11 #include "cgit.h"
  12
  13 /*
  14  * url syntax: [repo ['/' cmd [ '/' path]]]
  15  *   repo: any valid repo url, may contain '/'
  16  *   cmd:  log | commit | diff | tree | view | blob | snapshot
  17  *   path: any valid path, may contain '/'
  18  *
  19  */
  20 void cgit_parse_url(const char *url)
  21 {
  22         char *c, *cmd, *p;
  23         struct cgit_repo *repo;
  24
  25         if (!url || url[0] == '\0')
  26                 return;
  27
  28         ctx.qry.page = NULL;
  29         ctx.repo = cgit_get_repoinfo(url);
  30         if (ctx.repo) {
  31                 ctx.qry.repo = ctx.repo->url;
  32                 return;
  33         }
  34
  35         cmd = NULL;
  36         c = strchr(url, '/');
  37         while (c) {
  38                 c[0] = '\0';
  39                 repo = cgit_get_repoinfo(url);
  40                 if (repo) {
  41                         ctx.repo = repo;
  42                         cmd = c;
  43                 }
  44                 c[0] = '/';
  45                 c = strchr(c + 1, '/');
  46         }
  47
  48         if (ctx.repo) {
  49                 ctx.qry.repo = ctx.repo->url;
  50                 p = strchr(cmd + 1, '/');
  51                 if (p) {
  52                         p[0] = '\0';
  53                         if (p[1])
  54                                 ctx.qry.path = trim_end(p + 1, '/');
  55                 }
  56                 if (cmd[1])
  57                         ctx.qry.page = xstrdup(cmd + 1);
  58         }
  59 }
  60
  61 static char *substr(const char *head, const char *tail)
  62 {
  63         char *buf;
  64
  65         if (tail < head)
  66                 return xstrdup("");
  67         buf = xmalloc(tail - head + 1);
  68         strlcpy(buf, head, tail - head + 1);
  69         return buf;
  70 }
  71
  72 static void parse_user(const char *t, char **name, char **email, unsigned long *date, int *tz)
  73 {
  74         struct ident_split ident;
  75         unsigned email_len;
  76
  77         if (!split_ident_line(&ident, t, strchrnul(t, '\n') - t)) {
  78                 *name = substr(ident.name_begin, ident.name_end);
  79
  80                 email_len = ident.mail_end - ident.mail_begin;
  81                 *email = xmalloc(strlen("<") + email_len + strlen(">") + 1);
  82                 xsnprintf(*email, email_len + 3, "<%.*s>", email_len, ident.mail_begin);
  83
  84                 if (ident.date_begin)
  85                         *date = strtoul(ident.date_begin, NULL, 10);
  86                 if (ident.tz_begin)
  87                         *tz = atoi(ident.tz_begin);
  88         }
  89 }
  90
  91 #ifdef NO_ICONV
  92 #define reencode(a, b, c)
  93 #else
  94 static const char *reencode(char **txt, const char *src_enc, const char *dst_enc)
  95 {
  96         char *tmp;
  97
  98         if (!txt)
  99                 return NULL;
 100
 101         if (!*txt || !src_enc || !dst_enc)
 102                 return *txt;
 103
 104         /* no encoding needed if src_enc equals dst_enc */
 105         if (!strcasecmp(src_enc, dst_enc))
 106                 return *txt;
 107
 108         tmp = reencode_string(*txt, dst_enc, src_enc);
 109         if (tmp) {
 110                 free(*txt);
 111                 *txt = tmp;
 112         }
 113         return *txt;
 114 }
 115 #endif
 116
 117 static const char *next_header_line(const char *p)
 118 {
 119         p = strchr(p, '\n');
 120         if (!p)
 121                 return NULL;
 122         return p + 1;
 123 }
 124
 125 static int end_of_header(const char *p)
 126 {
 127         return !p || (*p == '\n');
 128 }
 129
 130 struct commitinfo *cgit_parse_commit(struct commit *commit)
 131 {
 132         struct commitinfo *ret;
 133         const char *p = repo_get_commit_buffer(the_repository, commit, NULL);
 134         const char *t;
 135
 136         ret = xcalloc(1, sizeof(struct commitinfo));
 137         ret->commit = commit;
 138
 139         if (!p)
 140                 return ret;
 141
 142         if (!skip_prefix(p, "tree ", &p))
 143                 die("Bad commit: %s", oid_to_hex(&commit->object.oid));
 144         p += the_hash_algo->hexsz + 1;
 145
 146         while (skip_prefix(p, "parent ", &p))
 147                 p += the_hash_algo->hexsz + 1;
 148
 149         if (p && skip_prefix(p, "author ", &p)) {
 150                 parse_user(p, &ret->author, &ret->author_email,
 151                         &ret->author_date, &ret->author_tz);
 152                 p = next_header_line(p);
 153         }
 154
 155         if (p && skip_prefix(p, "committer ", &p)) {
 156                 parse_user(p, &ret->committer, &ret->committer_email,
 157                         &ret->committer_date, &ret->committer_tz);
 158                 p = next_header_line(p);
 159         }
 160
 161         if (p && skip_prefix(p, "encoding ", &p)) {
 162                 t = strchr(p, '\n');
 163                 if (t) {
 164                         ret->msg_encoding = substr(p, t + 1);
 165                         p = t + 1;
 166                 }
 167         }
 168
 169         if (!ret->msg_encoding)
 170                 ret->msg_encoding = xstrdup("UTF-8");
 171
 172         while (!end_of_header(p))
 173                 p = next_header_line(p);
 174         while (p && *p == '\n')
 175                 p++;
 176         if (!p)
 177                 return ret;
 178
 179         t = strchrnul(p, '\n');
 180         ret->subject = substr(p, t);
 181         while (*t == '\n')
 182                 t++;
 183         ret->msg = xstrdup(t);
 184
 185         reencode(&ret->author, ret->msg_encoding, PAGE_ENCODING);
 186         reencode(&ret->author_email, ret->msg_encoding, PAGE_ENCODING);
 187         reencode(&ret->committer, ret->msg_encoding, PAGE_ENCODING);
 188         reencode(&ret->committer_email, ret->msg_encoding, PAGE_ENCODING);
 189         reencode(&ret->subject, ret->msg_encoding, PAGE_ENCODING);
 190         reencode(&ret->msg, ret->msg_encoding, PAGE_ENCODING);
 191
 192         return ret;
 193 }
 194
 195 struct taginfo *cgit_parse_tag(struct tag *tag)
 196 {
 197         void *data;
 198         enum object_type type;
 199         unsigned long size;
 200         const char *p;
 201         struct taginfo *ret = NULL;
 202
 203         data = repo_read_object_file(the_repository, &tag->object.oid, &type, &size);
 204         if (!data || type != OBJ_TAG)
 205                 goto cleanup;
 206
 207         ret = xcalloc(1, sizeof(struct taginfo));
 208
 209         for (p = data; !end_of_header(p); p = next_header_line(p)) {
 210                 if (skip_prefix(p, "tagger ", &p)) {
 211                         parse_user(p, &ret->tagger, &ret->tagger_email,
 212                                 &ret->tagger_date, &ret->tagger_tz);
 213                 }
 214         }
 215
 216         while (p && *p == '\n')
 217                 p++;
 218
 219         if (p && *p)
 220                 ret->msg = xstrdup(p);
 221
 222 cleanup:
 223         free(data);
 224         return ret;
 225 }