/* 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 void parse_user(const char *t, char **name, char **email, unsigned long *date) { struct ident_split ident; unsigned email_len; if (!split_ident_line(&ident, t, strchrnul(t, '\n') - 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); } } #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 static const char *next_header_line(const char *p) { p = strchr(p, '\n'); if (!p) return NULL; return p + 1; } static int end_of_header(const char *p) { return !p || (*p == '\n'); } struct commitinfo *cgit_parse_commit(struct commit *commit) { const int sha1hex_len = 40; struct commitinfo *ret; const char *p = get_cached_commit_buffer(commit, NULL); const char *t; ret = xcalloc(1, sizeof(struct commitinfo)); ret->commit = commit; if (!p) return ret; if (!skip_prefix(p, "tree ", &p)) die("Bad commit: %s", oid_to_hex(&commit->object.oid)); p += sha1hex_len + 1; while (skip_prefix(p, "parent ", &p)) p += sha1hex_len + 1; if (p && skip_prefix(p, "author ", &p)) { parse_user(p, &ret->author, &ret->author_email, &ret->author_date); p = next_header_line(p); } if (p && skip_prefix(p, "committer ", &p)) { parse_user(p, &ret->committer, &ret->committer_email, &ret->committer_date); p = next_header_line(p); } if (p && skip_prefix(p, "encoding ", &p)) { t = strchr(p, '\n'); if (t) { ret->msg_encoding = substr(p, t + 1); p = t + 1; } } if (!ret->msg_encoding) ret->msg_encoding = xstrdup("UTF-8"); while (!end_of_header(p)) p = next_header_line(p); while (p && *p == '\n') p++; if (!p) return ret; t = strchrnul(p, '\n'); ret->subject = substr(p, t); while (*t == '\n') t++; ret->msg = xstrdup(t); 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 = NULL; data = read_sha1_file(tag->object.oid.hash, &type, &size); if (!data || type != OBJ_TAG) goto cleanup; ret = xcalloc(1, sizeof(struct taginfo)); for (p = data; !end_of_header(p); p = next_header_line(p)) { if (skip_prefix(p, "tagger ", &p)) { parse_user(p, &ret->tagger, &ret->tagger_email, &ret->tagger_date); } } while (p && *p == '\n') p++; if (p && *p) ret->msg = xstrdup(p); cleanup: free(data); return ret; }