Diffstat (limited to 'filter.c')
| -rw-r--r-- | filter.c | 119 |
1 files changed, 65 insertions, 54 deletions
@@ -1,6 +1,10 @@ /* filter.c: filter framework functions * * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com> + * Copyright (C) 2026 Saya Andy <saya.andy@posteo.com> + * + * Modified 2026 by Saya Andy: + * Integrate ci filter * * Licensed under GNU General Public License v2 * (see COPYING for full license text) @@ -8,23 +12,13 @@ #include "cgit.h" #include "html.h" -#include <sys/types.h> -#include <sys/wait.h> -#include <unistd.h> -#include <string.h> -#include <stdlib.h> -#include <dlfcn.h> -#include <errno.h> #ifndef NO_LUA +#include <dlfcn.h> #include <lua.h> #include <lualib.h> #include <lauxlib.h> #endif -static ssize_t (*libc_write)(int fd, const void *buf, size_t count); -static ssize_t (*filter_write)(struct cgit_filter *base, const void *buf, size_t count) = NULL; -static struct cgit_filter *current_write_filter = NULL; - static inline void reap_filter(struct cgit_filter *filter) { if (filter && filter->cleanup) @@ -40,49 +34,21 @@ void cgit_cleanup_filters(void) reap_filter(ctx.cfg.email_filter); reap_filter(ctx.cfg.owner_filter); reap_filter(ctx.cfg.auth_filter); + reap_filter(ctx.cfg.ci_filter); for (i = 0; i < cgit_repolist.count; ++i) { reap_filter(cgit_repolist.repos[i].about_filter); reap_filter(cgit_repolist.repos[i].commit_filter); reap_filter(cgit_repolist.repos[i].source_filter); reap_filter(cgit_repolist.repos[i].email_filter); reap_filter(cgit_repolist.repos[i].owner_filter); + reap_filter(cgit_repolist.repos[i].ci_filter); } } -void cgit_init_filters(void) -{ - libc_write = dlsym(RTLD_NEXT, "write"); - if (!libc_write) - die("Could not locate libc's write function"); -} - -ssize_t write(int fd, const void *buf, size_t count) -{ - if (fd != STDOUT_FILENO || !filter_write) - return libc_write(fd, buf, count); - return filter_write(current_write_filter, buf, count); -} - -static inline void hook_write(struct cgit_filter *filter, ssize_t (*new_write)(struct cgit_filter *base, const void *buf, size_t count)) -{ - /* We want to avoid buggy nested patterns. */ - assert(filter_write == NULL); - assert(current_write_filter == NULL); - current_write_filter = filter; - filter_write = new_write; -} - -static inline void unhook_write() -{ - assert(filter_write != NULL); - assert(current_write_filter != NULL); - filter_write = NULL; - current_write_filter = NULL; -} - static int open_exec_filter(struct cgit_filter *base, va_list ap) { struct cgit_exec_filter *filter = (struct cgit_exec_filter *)base; + int pipe_fh[2]; int i; for (i = 0; i < filter->base.argument_count; i++) @@ -90,19 +56,19 @@ static int open_exec_filter(struct cgit_filter *base, va_list ap) filter->old_stdout = chk_positive(dup(STDOUT_FILENO), "Unable to duplicate STDOUT"); - chk_zero(pipe(filter->pipe_fh), "Unable to create pipe to subprocess"); + chk_zero(pipe(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), + close(pipe_fh[1]); + chk_non_negative(dup2(pipe_fh[0], STDIN_FILENO), "Unable to use pipe as STDIN"); execvp(filter->cmd, filter->argv); die_errno("Unable to exec subprocess %s", filter->cmd); } - close(filter->pipe_fh[0]); - chk_non_negative(dup2(filter->pipe_fh[1], STDOUT_FILENO), + close(pipe_fh[0]); + chk_non_negative(dup2(pipe_fh[1], STDOUT_FILENO), "Unable to use pipe as STDOUT"); - close(filter->pipe_fh[1]); + close(pipe_fh[1]); return 0; } @@ -154,7 +120,7 @@ static struct cgit_filter *new_exec_filter(const char *cmd, int argument_count) f = xmalloc(sizeof(*f)); /* We leave argv for now and assign it below. */ - cgit_exec_filter_init(f, xstrdup(cmd), NULL); + cgit_exec_filter_init(f, strdup_first_line(cmd), NULL); f->base.argument_count = argument_count; args_size = (2 + argument_count) * sizeof(char *); f->argv = xmalloc(args_size); @@ -168,7 +134,7 @@ void cgit_exec_filter_init(struct cgit_exec_filter *filter, char *cmd, char **ar memset(filter, 0, sizeof(*filter)); filter->base.open = open_exec_filter; filter->base.close = close_exec_filter; - filter->base.fprintf = fprintf_exec_filter; + filter->base.fprintfp = fprintf_exec_filter; filter->base.cleanup = cleanup_exec_filter; filter->cmd = cmd; filter->argv = argv; @@ -176,7 +142,48 @@ void cgit_exec_filter_init(struct cgit_exec_filter *filter, char *cmd, char **ar filter->base.argument_count = 0; } +#ifdef NO_LUA +void cgit_init_filters(void) +{ +} +#endif + #ifndef NO_LUA +static ssize_t (*libc_write)(int fd, const void *buf, size_t count); +static ssize_t (*filter_write)(struct cgit_filter *base, const void *buf, size_t count) = NULL; +static struct cgit_filter *current_write_filter = NULL; + +void cgit_init_filters(void) +{ + libc_write = dlsym(RTLD_NEXT, "write"); + if (!libc_write) + die("Could not locate libc's write function"); +} + +ssize_t write(int fd, const void *buf, size_t count) +{ + if (fd != STDOUT_FILENO || !filter_write) + return libc_write(fd, buf, count); + return filter_write(current_write_filter, buf, count); +} + +static inline void hook_write(struct cgit_filter *filter, ssize_t (*new_write)(struct cgit_filter *base, const void *buf, size_t count)) +{ + /* We want to avoid buggy nested patterns. */ + assert(filter_write == NULL); + assert(current_write_filter == NULL); + current_write_filter = filter; + filter_write = new_write; +} + +static inline void unhook_write(void) +{ + assert(filter_write != NULL); + assert(current_write_filter != NULL); + filter_write = NULL; + current_write_filter = NULL; +} + struct lua_filter { struct cgit_filter base; char *script_file; @@ -352,10 +359,10 @@ static struct cgit_filter *new_lua_filter(const char *cmd, int argument_count) memset(filter, 0, sizeof(*filter)); filter->base.open = open_lua_filter; filter->base.close = close_lua_filter; - filter->base.fprintf = fprintf_lua_filter; + filter->base.fprintfp = fprintf_lua_filter; filter->base.cleanup = cleanup_lua_filter; filter->base.argument_count = argument_count; - filter->script_file = xstrdup(cmd); + filter->script_file = strdup_first_line(cmd); return &filter->base; } @@ -384,7 +391,7 @@ int cgit_close_filter(struct cgit_filter *filter) void cgit_fprintf_filter(struct cgit_filter *filter, FILE *f, const char *prefix) { - filter->fprintf(filter, f, prefix); + filter->fprintfp(filter, f, prefix); } @@ -401,7 +408,7 @@ static const struct { struct cgit_filter *cgit_new_filter(const char *cmd, filter_type filtertype) { - char *colon; + const char *colon; int i; size_t len; int argument_count; @@ -423,6 +430,10 @@ struct cgit_filter *cgit_new_filter(const char *cmd, filter_type filtertype) argument_count = 12; break; + case CI: + argument_count = 3; + break; + case EMAIL: argument_count = 2; break; |