| -rw-r--r-- | cgit.c | 15 | ||||
| -rw-r--r-- | cgit.h | 12 | ||||
| -rw-r--r-- | shared.c | 35 |
3 files changed, 62 insertions, 0 deletions
@@ -1,67 +1,82 @@ /* cgit.c: cgi for the git scm * * Copyright (C) 2006 Lars Hjemli * * Licensed under GNU General Public License v2 * (see COPYING for full license text) */ #include "cgit.h" #include "cache.h" #include "cmd.h" #include "configfile.h" #include "html.h" #include "ui-shared.h" #include "ui-stats.h" #include "scan-tree.h" const char *cgit_version = CGIT_VERSION; +struct cgit_filter *new_filter(const char *cmd, int extra_args) +{ + struct cgit_filter *f; + + if (!cmd) + return NULL; + + f = xmalloc(sizeof(struct cgit_filter)); + f->cmd = xstrdup(cmd); + f->argv = xmalloc((2 + extra_args) * sizeof(char *)); + f->argv[0] = f->cmd; + f->argv[1] = NULL; + return f; +} + void config_cb(const char *name, const char *value) { if (!strcmp(name, "root-title")) ctx.cfg.root_title = xstrdup(value); else if (!strcmp(name, "root-desc")) ctx.cfg.root_desc = xstrdup(value); else if (!strcmp(name, "root-readme")) ctx.cfg.root_readme = xstrdup(value); else if (!strcmp(name, "css")) ctx.cfg.css = xstrdup(value); else if (!strcmp(name, "favicon")) ctx.cfg.favicon = xstrdup(value); else if (!strcmp(name, "footer")) ctx.cfg.footer = xstrdup(value); else if (!strcmp(name, "head-include")) ctx.cfg.head_include = xstrdup(value); else if (!strcmp(name, "header")) ctx.cfg.header = xstrdup(value); else if (!strcmp(name, "logo")) ctx.cfg.logo = xstrdup(value); else if (!strcmp(name, "index-header")) ctx.cfg.index_header = xstrdup(value); else if (!strcmp(name, "index-info")) ctx.cfg.index_info = xstrdup(value); else if (!strcmp(name, "logo-link")) ctx.cfg.logo_link = xstrdup(value); else if (!strcmp(name, "module-link")) ctx.cfg.module_link = xstrdup(value); else if (!strcmp(name, "virtual-root")) { ctx.cfg.virtual_root = trim_end(value, '/'); if (!ctx.cfg.virtual_root && (!strcmp(value, "/"))) ctx.cfg.virtual_root = ""; } else if (!strcmp(name, "nocache")) ctx.cfg.nocache = atoi(value); else if (!strcmp(name, "noheader")) ctx.cfg.noheader = atoi(value); else if (!strcmp(name, "snapshots")) ctx.cfg.snapshots = cgit_parse_snapshots_mask(value); else if (!strcmp(name, "enable-index-links")) ctx.cfg.enable_index_links = atoi(value); else if (!strcmp(name, "enable-log-filecount")) ctx.cfg.enable_log_filecount = atoi(value); else if (!strcmp(name, "enable-log-linecount")) ctx.cfg.enable_log_linecount = atoi(value); else if (!strcmp(name, "max-stats")) ctx.cfg.max_stats = cgit_find_stats_period(value, NULL); else if (!strcmp(name, "cache-size")) ctx.cfg.cache_size = atoi(value); @@ -84,96 +84,105 @@ struct commitinfo { char *msg; char *msg_encoding; }; struct taginfo { char *tagger; char *tagger_email; unsigned long tagger_date; char *msg; }; struct refinfo { const char *refname; struct object *object; union { struct taginfo *tag; struct commitinfo *commit; }; }; struct reflist { struct refinfo **refs; int alloc; int count; }; struct cgit_query { int has_symref; int has_sha1; char *raw; char *repo; char *page; char *search; char *grep; char *head; char *sha1; char *sha2; char *path; char *name; char *mimetype; char *url; char *period; int ofs; int nohead; char *sort; int showmsg; }; +struct cgit_filter { + char *cmd; + char **argv; + int old_stdout; + int pipe_fh[2]; + int pid; + int exitstatus; +}; + struct cgit_config { char *agefile; char *cache_root; char *clone_prefix; char *css; char *favicon; char *footer; char *head_include; char *header; char *index_header; char *index_info; char *logo; char *logo_link; char *module_link; char *repo_group; char *robots; char *root_title; char *root_desc; char *root_readme; char *script_name; char *virtual_root; int cache_size; int cache_dynamic_ttl; int cache_max_create_time; int cache_repo_ttl; int cache_root_ttl; int cache_static_ttl; int embedded; int enable_index_links; int enable_log_filecount; int enable_log_linecount; int local_time; int max_repo_count; int max_commit_count; int max_lock_attempts; int max_msg_len; int max_repodesc_len; int max_stats; int nocache; int noheader; int renamelimit; int snapshots; int summary_branches; int summary_log; int summary_tags; }; struct cgit_page { @@ -203,50 +212,53 @@ struct cgit_snapshot_format { int bit; }; extern const char *cgit_version; extern struct cgit_repolist cgit_repolist; extern struct cgit_context ctx; extern const struct cgit_snapshot_format cgit_snapshot_formats[]; extern struct cgit_repo *cgit_add_repo(const char *url); extern struct cgit_repo *cgit_get_repoinfo(const char *url); extern void cgit_repo_config_cb(const char *name, const char *value); extern int chk_zero(int result, char *msg); extern int chk_positive(int result, char *msg); extern int chk_non_negative(int result, char *msg); extern char *trim_end(const char *str, char c); extern char *strlpart(char *txt, int maxlen); extern char *strrpart(char *txt, int maxlen); extern void cgit_add_ref(struct reflist *list, struct refinfo *ref); extern int cgit_refs_cb(const char *refname, const unsigned char *sha1, int flags, void *cb_data); extern void *cgit_free_commitinfo(struct commitinfo *info); extern int cgit_diff_files(const unsigned char *old_sha1, const unsigned char *new_sha1, unsigned long *old_size, unsigned long *new_size, int *binary, linediff_fn fn); extern void cgit_diff_tree(const unsigned char *old_sha1, const unsigned char *new_sha1, filepair_fn fn, const char *prefix); extern void cgit_diff_commit(struct commit *commit, filepair_fn fn); extern char *fmt(const char *format,...); extern struct commitinfo *cgit_parse_commit(struct commit *commit); extern struct taginfo *cgit_parse_tag(struct tag *tag); extern void cgit_parse_url(const char *url); extern const char *cgit_repobasename(const char *reponame); extern int cgit_parse_snapshots_mask(const char *str); +extern int cgit_open_filter(struct cgit_filter *filter); +extern int cgit_close_filter(struct cgit_filter *filter); + #endif /* CGIT_H */ @@ -310,48 +310,83 @@ void cgit_diff_tree(const unsigned char *old_sha1, prefixlen = strlen(prefix); opt.pathlens = &prefixlen; } diff_setup_done(&opt); if (old_sha1 && !is_null_sha1(old_sha1)) ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt); else ret = diff_root_tree_sha1(new_sha1, "", &opt); diffcore_std(&opt); diff_flush(&opt); } void cgit_diff_commit(struct commit *commit, filepair_fn fn) { unsigned char *old_sha1 = NULL; if (commit->parents) old_sha1 = commit->parents->item->object.sha1; cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL); } int cgit_parse_snapshots_mask(const char *str) { const struct cgit_snapshot_format *f; static const char *delim = " \t,:/|;"; int tl, sl, rv = 0; /* favor legacy setting */ if(atoi(str)) return 1; for(;;) { str += strspn(str,delim); tl = strcspn(str,delim); if (!tl) break; for (f = cgit_snapshot_formats; f->suffix; f++) { sl = strlen(f->suffix); if((tl == sl && !strncmp(f->suffix, str, tl)) || (tl == sl-1 && !strncmp(f->suffix+1, str, tl-1))) { rv |= f->bit; break; } } str += tl; } return rv; } + +int cgit_open_filter(struct cgit_filter *filter) +{ + + filter->old_stdout = chk_positive(dup(STDOUT_FILENO), + "Unable to duplicate STDOUT"); + chk_zero(pipe(filter->pipe_fh), "Unable to create pipe to subprocess"); + filter->pid = chk_non_negative(fork(), "Unable to create subprocess"); + if (filter->pid == 0) { + close(filter->pipe_fh[1]); + chk_non_negative(dup2(filter->pipe_fh[0], STDIN_FILENO), + "Unable to use pipe as STDIN"); + execvp(filter->cmd, filter->argv); + die("Unable to exec subprocess %s: %s (%d)", filter->cmd, + strerror(errno), errno); + } + close(filter->pipe_fh[0]); + chk_non_negative(dup2(filter->pipe_fh[1], STDOUT_FILENO), + "Unable to use pipe as STDOUT"); + close(filter->pipe_fh[1]); + return 0; +} + +int cgit_close_filter(struct cgit_filter *filter) +{ + chk_non_negative(dup2(filter->old_stdout, STDOUT_FILENO), + "Unable to restore STDOUT"); + close(filter->old_stdout); + if (filter->pid < 0) + return 0; + waitpid(filter->pid, &filter->exitstatus, 0); + if (WIFEXITED(filter->exitstatus) && !WEXITSTATUS(filter->exitstatus)) + return 0; + die("Subprocess %s exited abnormally", filter->cmd); +} |